2021 Chevrolet Silverado 1500 TSBs
1,000 Technical Service Bulletins across 17 categories
Categories
Engine
318 bulletinsThis preliminary information communicates an issue with the engine running after the ignition is turned off and...
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diagnostic help to isolate a possible Fuel Pump Control Module issue.
This Preliminary information communication provides information to the technician on installing Regular Production Option Code UVC Rearview Camera.
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Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in...
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these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.
This Preliminary information communicates an issue with blower motor speed changing when air flow is blocked by snow.
General Motors has decided to conduct a voluntary emissions recall.
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A Vehicle Emissions Control Information (VECI) label with correct information may not be present. Dealers are to install a new VECI label.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts.
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Dealers are to suspect/monitor the crankshaft position sensor.
This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed.
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Engineering is working on a new HVAC door seal material to correct the noise.
This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to...
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correct the customers concern of No Reverse, No Shift Past Third Gear - DTC P2732 Set.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
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internal engine damage.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple...
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repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
This PI communicates information that Engineering is aware of concern and working to correct false Service Trailer Turn...
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Signal Message when operating the power tailgate with no trailer connected.
Under Field Actions N252494000, N252494001, the service procedure includes performing a PICO test on vehicle engines...
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within the identified suspect VIN population. If the engine passes the PICO test, the engine oil will be changed from 0W20 to Mobil 1 Supercar 0W40 dexosR. From that point forward, the engine must use 0W40 dexosR oil products for all future oil change services.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed.
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Engineering is working on a new HVAC door seal material to correct the noise.
This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to...
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correct the customers concern of No Reverse, No Shift Past Third Gear - DTC P2732 Set.
This informational bulletin advises the technician of a part number change for long block engines used in the trucks...
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noted.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
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engine related shudder.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
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caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.
Certain vehicles listed above, may have a condition that could cause the engine coolant control valve to fail an onboard vehicle diagnostic test.
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If this condition were to occur, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally in some cases, the engine cooling fans may run after the engine is switched off. Dealers are to replace the engine coolant control valve as necessary. The repairs will be made at no charge to the customer.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
Certain vehicles will receive a software update to add to the existing Check Engine Light a Driver Information Center...
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(DIC) warning message if DTC P0016 sets. Dealers will reprogram the Engine Control Module (ECM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
Certain vehicles will receive a software update to add to the existing Check Engine Light a Driver Information Center...
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(DIC) warning message if DTC P0016 sets. Dealers will reprogram the Engine Control Module (ECM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module.
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Engineering is working on a fix, but in the meantime, dealers are to install a diode.
Certain vehicles will receive a software update to add to the existing Check Engine Light a Driver Information Center...
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(DIC) warning message if DTC P0016 sets. Dealers will reprogram the Engine Control Module (ECM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the...
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possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates A vehicle may have a concern of any of the following DTC's set P3189 P318A...
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P318B P318C P318D P318E P318F P3190. Informs dealer to perform a crankshaft variation relearn, Also notes that SI may not isolate.
This PI communicates a procedure to clean oil leaking from the rain sensor.
This PI communicates an issue with a SES MIL with DTC P2535, P12A6, P10DA and/or C111B maybe set after replacing the fuel pump driver module.
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Engineering is working on a fix, but in the meantime, dealers are to install a diode.
Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in...
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these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.
This bulletin advises the tech that the Exhaust Roller Follower may be the issue with the engine Ticking noise, misfire...
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or rough run and what to replace if found the cause.
Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in...
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these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.
This Preliminary information communicates the possibility of DTCP30BFfailing on low mile vehicles due to the possibility...
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of the cylinder 1/2 sliding barrel binding on intake camshaft.
This service bulletin provides a procedure to overhaul the control valve to replace a plate and worn down check ball to...
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correct the customers concern of No Reverse, No Shift Past Third Gear - DTC P2732 Set.
This informational bulletin advises the technician that the gasket for the timing chain tensioner is not required.
This Preliminary information communicates to dealers information related to aMalfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting.
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Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises toutilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.
This engineering information (EI) closure ends the need for gathering further information from technicians in regard to...
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the vehicle having loss of power and/or having the MIL illuminated on DIC.
This Preliminary information communicates to use a vacuum to remove any packing material found on top of the service...
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valve body assembly.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed.
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Engineering is working on a new HVAC door seal material to correct the noise.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regard to the vehicle having loss of power and/or having the MIL illuminated on the Driver Information Center (DIC).
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
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caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.
This bulletin advises the technician that if the code sets, verify the sensor then inspect the engine oil pump for a...
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sticking valve that may cause the MIL to illuminate.
This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed...
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parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
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GDS 2.
This informational bulletin advises the technician on normal noises produced by the engine and to explain this to the...
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customer.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
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issue.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.
This informational bulletin advises the technician of a part number change for long block engines used in the trucks...
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noted.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
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test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.
This Preliminary information communicationprovides information to the technician on installing Regular Production Option...
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Code UVC Rearview Camera.Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
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Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This informational bulletin advises the technician of a part number change for long block engines used in the trucks...
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noted.
This bulletin advises the tech of a part number change for the engine kit assembly.
This engineering information (EI) closure ends the need for gathering further information from technicians in regard to...
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a Chirp, Squeal, and/or Whine Type Noise Heard from Front of Vehicle During a Cold Start and/or While in Operation.
This bulletin advises the tech of a part number change for the engine kit assembly.
Certain vehicles listed above, may have a condition where the transmission control valve has worn, resulting in a...
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gradual loss of pressure within the valve. The effects can cause harsh shifting, setting a service engine soon message, reduced engine performance or P0747 diagnostic trouble code. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after November 26, 2024, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to November 26, 2024, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to install a new control valve body. The repairs will be made at no charge to the customer.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
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consumption.
This bulletin provides information on Policies Applicable to All U.S.
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Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards on hearing one or more of the following noises coming from the front of the vehicle during a cold start and/or while in operation.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This bulletin advises the tech that if the wrong mounts are installed, this may be the cause of the engine vibration.
This bulletin advises the technician that if the code sets, verify the sensor then inspect the engine oil pump for a...
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sticking valve that may cause the MIL to illuminate.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This service bulletin provides repair information for Engine Wire Harness Chafing to correct customer concerns of IPC...
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Gauges Sweep, IPC Warning Message, SES/Check Engine/MIL, No Start/ No Crank, Runs Rough, Stalls, Reduced Engine Power, Various DTCs.
This bulletin advises the tech to validate the vibration and to perform an Engine mount balance to verify if the mounts...
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were binding and the cause of the customer concern.
Service Update. Certain vehicles equipped with a 2.7L engine (RPO L3B), may have an Engine Control Module (ECM) that...
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does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary information communicates to the dealer, a potential rough running condition following an autostop event...
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that is caused by the incorrect crankshaft position sensor.
This Preliminary Information communication advises the technician on a parts restriction on the Generation I 8 speed...
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rear wheel drive valve bodies.
This Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed.
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Engineering is working on a new HVAC door seal material to correct the noise.
This Preliminary Information communication advises the technician on a parts restriction on the Generation I 8 speed...
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rear wheel drive valve bodies.
This Preliminary information communicates apart restriction for certain MY 2.7 L3B service engines
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This informational bulletin advises the technician that the engine and related parts will be debited if found that the...
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tech did not properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
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GDS 2.
This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
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consumption.
This Preliminary information communicates to the dealer an issue where a vehicle may be exhibiting an enginenoise...
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condiion.The dealer is instructed on how to isolate the noise to a specific area of the engine for further diagnosis.
This Informational bulletin advises the technician of possible areas the oil may leak from the engine.
This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
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hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
his Preliminary information communicates an issue that when an engine mount is replaced there may be additional parts...
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replaced along with the engine mount and dealership are to reference the parts catalog to determine if additional parts are needed.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
This Preliminary information communicates apart restriction for certain MY 2.7 L3B service engines
This Preliminary information communicates the part ordering restriction of the 6.2L L87 engine.
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this...
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occurrence.
This Preliminary information communicates the possibility of DTCP30BFfailing on low mile vehicles due to the possibility...
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of the cylinder 1/2 sliding barrel binding on intake camshaft.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted andnot start afterward.
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This is the result of hooking up the Active Fuel Injector Tool incorrectly on vehicles equipped with a direct fuel injection system. This Preliminary information instructs the dealer ofa repair kit they received that will prevent this issue when installed correctly.
This Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the...
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crankshaft sprocket to disengage from the crankshaft during crankshaft balancer or cam drive system component related serviceprocedures.
This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the...
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possibilities of what may happen using the incorrect filter.
This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler (CAC) Icing,...
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Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
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conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This service bulletin provides information for engine oil life monitor operation calculation.
This service bulletin provides information for engine oil life monitor operation calculation.
This bulletin updates the position of General Motors on refinishing aluminum wheels.
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GM has determined that wheel refinishing under warranty will no longer be performed.
This Preliminary information communicates an issue with premature brake pad life and engineering is working on release...
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new pad lining material.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary information communicates to dealers? information related to aMalfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting.
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Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises toutilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.
This Preliminary Information communication advises the technician with a tip when the vehicle stops running after it has been idling for 2.5 hours.
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This is normal operation of the vehicle built with regular production code BTM and without Regular Production Option Code AVF. If the vehicle was built with regular production code BTM and AVF only has a 1 hour idle time.
This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are...
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found to be the cause of the failure of the valve body.
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with...
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conductive finish.
This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed...
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parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
This technical bulletin provides a procedure to program the TCM and replace the control valve body if the conditions are...
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found to be the cause of the failure you the valve body.
This bulletin advises the tech to inspect deeper into what may be the main cause of an engine failure.
This informational bulletin provides information for dealers/technicians on Body Control Module Programming due to...
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Window Motor Changes Related to Microprocessor Shortage.
This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
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conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
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caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston installation. This grease can be cleaned off and the rest of the service completed.
This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor...
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Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions...
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and improve fuel economy.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact...
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the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage...
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patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
This Preliminary information communicationprovides information to the technician on installing Regular Production Option...
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Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This Preliminary Information communication provides information to the technician about vibration complaints that are...
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one of the most challenging complaints to accurately diagnose and repair. Technician will need to use Pico Oscilloscope Diagnostic Kit to effectively diagnosis vehicles. Technician should drive the vehicle will using the Pico Oscilloscope to record data. After the data is recorded it should be reviewed to determine the root cause of the concern. If a repair attempt made the concern better but not eliminated or had no affect at all, and are requesting assistance from General Motors Technical Assistance Center record another Pico file and save it to the computer. After the new Pico Oscilloscope data has been saved email the data to General Motors Technical Assistance Center in the subject line include ?Vibration? ?Business Associate Code? and the last 8 of the Vehicle Identification Number.
This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen.
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While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will still be alerted to an approaching vehicle by the seat vibration. Dealers are advised that engineering is working on a resolution and it will be available bythe end of 2023.
This Preliminary informationprovides information to the technician on installing a roof beacon light.
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Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 157. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension...
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housing and to perform testing on transmission for other possible issues, but it still may be possible on high mileage vehicles that orifices in housing may have come dislodged, causing the same customer concern.
This technical bulletin provides repair information to correct a customer concern of 2020 - 2022 Silverado and Sierra...
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Equipped with Diesel Engine Setting DTCs P20BB or P20C3.
This PI bulletin advises the technician on the proper way to install the pistons in an engine.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
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test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This service bulletin provides repair information for Engine Wire Harness Chafing to correct customer concerns of IPC...
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Gauges Sweep, IPC Warning Message, SES/Check Engine/MIL, No Start/ No Crank, Runs Rough, Stalls, Reduced Engine Power, Various DTCs.
This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine...
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noise due to excessive wear in exhaust roller follower axle pin.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple...
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repair attempts that are being performed on customer?s vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
This PI states that a vehicle may exhibit a concern of the cross traffic alert indicators not displaying on the radio screen.
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While this is a customer dissatisfier, it does not pose a safety concern due to the fact that the customer will still be alerted to an approaching vehicle by the seat vibration. Dealers are advised that engineering is working on a resolution and it will be available bythe end of 2023.
This Preliminary information communicates to the dealer, a potential rough running condition following an autostop event...
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that is caused by the incorrect crankshaft position sensor.
This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
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Dealers Only).
This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage...
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patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.
This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and...
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Recommendations.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
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consumption.
This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
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Dealers Only).
This bulletin advises the tech to inspect deeper into what may be to main cause of an engine failure.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the...
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possibilities of what may happen using the incorrect filter.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine...
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noise due to excessive wear in exhaust roller follower axle pin.
This informational bulletin advises the tech to inspect the transfer case motor electrical connectors for possible...
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damage or corrosion that might be caused by a damage grommet inside the electrical connector.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This informational bulletin advised the technician that the engine and related parts will be debited if found that the...
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tech didn't properly prepare the engine block from dirt and debris in bolt holes or if found that the block was damaged by the tech.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
This Informational bulletin advises the technician of possible areas the oil may leak from the engine.
This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
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hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary Information communication provides information to the technician that General Motors Technical...
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Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
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GDS 2.
This engineering information (EI) closure ends the need to gather further information from technicians regarding taking...
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pictures of decals wrinkling, peeling, bubbling, discoloration, delaminating and/or coming off.
Special Coverage - Certain vehicles may have a condition that could cause the evaporative emissions purge pump to fail.
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If this condition occurs, the Malfunction Indicator Light (Check Engine Light) will illuminate and a diagnostic trouble code will set. Dealers are to replace the evaporative emissions purge pump as necessary. The repairs will be made at no charge to the customer. The repairs will be made at no charge to the customer.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
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engine related shudder.
This Preliminary information communicates an issue that when an engine mount is replaced there may be additional parts...
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replaced along with the engine mount and dealership are to reference the parts catalog to determine if additional parts are needed.
This Preliminary information communicationprovides information to the technician on installing Regular Production Option...
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Code UVC Rearview Camera.Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 152. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
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consumption.
This service bulletin provides information to dealership personnel on automatic transmission shift and engine...
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driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor...
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Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary information communicatesinformation to the technician that if they receive a vehicle with this concern...
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and verifying the rear view camera is zoomed in,General Motors is aware of this and have created a repair.
This Preliminary information communicatesinformation to the technician that if they receive a vehicle with this concern...
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and verifying the rear view camera is zoomed in,General Motors is aware of this and have created a repair.
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
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Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
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issue.
This service bulletin provides a procedure to replace the valve lifter and guides to correct customer concerns of Poor...
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Engine Performance, Engine Misfires, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308 Set.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad...
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replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
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Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.
This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308.
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Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
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issue.
This service bulletin provides information for the technician that may experience a condition when after performing a...
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DTC Clear/Reset on the TCM during diagnosis or after completion of a transmission repair or replacement, the DTCs did not clear or appear to reset on the next engine start.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
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internal engine damage.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
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Dealers Only).
This Preliminary informationprovides information to the technician on installing a roof beacon light.
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Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 157. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts.
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Dealers are to suspect/monitor the crankshaft position sensor.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
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vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary information communicates to the dealera diagnostic and repair direction to apossible engine crankshaft...
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bearing failure.
This Preliminary information provides a proactive communication to dealers advising that engineering is aware of the...
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Turn by Turn concern, and working on a resolution. It alsoadvises that once a repair is available that the PI will be replaced by a Service Bulletin.
This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
This service bulletin provides information for after installation of a replacement upper valve body, the transmission...
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may have no Reverse and no 2nd gear.
This technical bulletin provides repair information to correct a customer concern of LM2 Engine Calibration Update for...
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DTC P003A.
This Informational bulletin advises the technician of possible areas the oil may leak from the engine.
This service bulletin provides information for the technician that may experience a condition when after performing a...
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DTC Clear/Reset on the TCM during diagnosis or after completion of a transmission repair or replacement, the DTCs did not clear or appear to reset on the next engine start.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does...
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not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
This Preliminary information communicatesinformation to the technician that if they receive a vehicle with this concern...
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and verifying the rear view camera is zoomed in,General Motors is aware of this and working on a solution for the concern.
This Preliminary information communicatesSome customers may comment that the SES lamp is illuminated or was Illuminated...
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and turned off, with no driveabilty concerns. During inspection Technician may notice DTCP2635.Unknown at this timeengineering is working on this concern
This technical bulletin provides repair information to correct a customer concern of Charge Air Cooler (CAC) Icing,...
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Check Engine Lamp Illuminated, Possible P0299, P2227, and/or P0300 DTCs Set.
This informational bulletin advises the tech to inspect the transfer case motor electrical connectors for possible...
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damage or corrosion that might be caused by a damage grommet inside the electrical connector.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
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issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
This Preliminary information communicates to dealers? information related to aMalfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting.
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Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises toutilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.
This Preliminary Information communication provides information to the technician that General Motors Technical...
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Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
This Preliminary Information communication provides information to the technician that General Motors Technical...
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Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.
This technical bulletin provides a procedure to locate a possible short in the engine wiring harness.
This service bulletin provides a repair procedure to correct a customer concern of Delayed and/or Harsh Engagement of...
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Transmission Shift After Vehicle Sitting with Engine Off.
This service bulletin provides information for the technician that may experience a condition when after performing a...
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DTC Clear/Reset on the TCM during diagnosis or after completion of a transmission repair or replacement, the DTCs did not clear or appear to reset on the next engine start.
Service Update. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler...
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(CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18C (0F) or less). Dealers will install a radiator air front lower baffle and, if necessary, reprogram the Engine Control Module.
This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact...
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the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.
This engineering information (EI) closure ends the need for gathering information from technicians in regards to the...
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front upper control arm ball joint separated from the socket.
This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad...
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replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.
This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension...
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housing and to perform testing on transmission for possible other issues, but it still may be possible on high mile vehicles that orifices in housing may have come dislodged, causing the same customer concern.
This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
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General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.
This Preliminary Information communication provides information to the technician that if they receive a vehicle with...
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this concern with their vehicles trailer hitch backup camera guideline not centered, General Motors is aware of this and are working on identifying the cause and working on a remedy for this concern
This engineering information (EI) closure ends the need for gathering further information from technicians in regards to...
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the front upper control arm ball joint separated from the socket.
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head...
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gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running Hot.
This bulletin provides information on Policies Applicable to All U.S.
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Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
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and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This Preliminary information provides a proactive communication to dealers advising that engineering is aware of the...
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Turn by Turn concern, and working on a resolution. It alsoadvises that once a repair is available that the PI will be replaced by a Service Bulletin.
This Preliminary information communicates to the dealer technician that if the vehicle's engine coolant reservoirhas...
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transmission fluid in it or if Glycol it found in the transmission fluid the dealer should replace the Automatic Transmission Fluid Cooling Exchanger. The dealershould refer to bulletin 08-07-30-035 for the recommended components that should be replaced in the transmission and to flush the engine cooling system following service information.
This Preliminary information communicates that a customer may notice that the gridlines on the backup camera are very dim.
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They may mention that this occurred after an OTA update. The dealer technician is advised to perform no repairs. The technician is advised that engineering is looking into a resolution and the resolution will be communicated through this PI or a bulletin when it becomes available.
This Preliminary information communicationprovides information to the technician on installing Regular Production Option...
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Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."
This Preliminary information communicates diagnostic aid to help isolate possible repeat thermal by-pass valve concern.
This informational bulletin advises the technician on normal noises produced by the engine and to explain this to the...
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customer.
This informational bulletin provides information for dealers/technicians on Body Control Module Programming due to...
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Window Motor Changes Related to Microprocessor Shortage.
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head...
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gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running Hot.
This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
This Preliminary Information communication provides information to the technician to not remove the torque converter...
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bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
This engineering information (EI) closure ends the need for further information from the field in regards to Service...
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Engine Soon (SES) Lamp illuminated and/or Service Emissions System message on the Driver Information Center (DIC).
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards to the front upper control arm ball joint separated from the socket.
This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.
This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
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hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
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GDS 2.
This service bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle...
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Identification.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
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consumption.
This Informational bulletin advises the technician of a possible oil leak at the front cover and how to diagnose it to...
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verify if it is coming from the seal or not.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
In certain vehicles, equipped with a manual HVAC system (RPO: C4P), the K33 HVAC Control Module may not properly enable...
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the heater auxiliary coolant pump to maintain cabin heater temperature during engine auto stop events. Reprogram the K33 HVAC Control Module with updated software.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
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internal engine damage.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or Service Emissions System message on the Driver Information Center (DIC).
This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the...
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engine is started while diagnosing for noise from the engine or transmission.
This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve...
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which will need to be installed to correct the repair.
This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and...
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Recommendations.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards to the front upper control arm ball joint separated from the socket.
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions...
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and improve fuel economy.
This Preliminary information provides a proactive communication to dealers advising that engineering is aware of the...
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Turn by Turn concern, and working on a resolution. It alsoadvises that once a repair is available that the PI will be replaced by a Service Bulletin.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
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engine related shudder.
This Preliminary information communicates a condtion where SD card removed is being displayed on the radio display intermittently.
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ThisPI advises that engineering is working on a fix for this issue
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
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Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
Engineering Information.
This engineering information (EI) closure ends the need for further information regarding oil leaking from the lower oil...
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pan seal area.
This technical bulletin advises to replace the camshaft cover if found within the Julian date and the cause of a...
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customer concern of possible oil consumption with or without DTC P06DD.
This engineering informational bulletin is requesting information from technicians to take pictures of decals wrinkling,...
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peeling, bubbling, discoloration, delaminating and/or coming off and contact the engineer listed.
This engineering information (EI) closure ends the need for further information from the field in regards Service...
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Emission System and/or DEF Level Low message on driver information center (DIC).
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
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Dealers Only).
This technical bulletin advises to replace the camshaft cover if found with in the Julian date and the cause of the...
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customers concern.
This Informational bulletin advises the technician of a possible oil leak at the front cover and how to diagnose it to...
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verify if it is coming from the seal or not.
This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.
This informational bulletin provides information for dealers/technicians on an elevated idle feature.
This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
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noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.
This Preliminary information communicates to the dealers information related to aMalfunction Indicator Lamp (MIL)...
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Illuminated with Any Combination of DTCs P0011 P0014 P0016 P0017 Setting. Advises to perform Strategy Based Diagnosis and to replace the affectedCamshaft Position Actuator Magnet as necessary.
This Preliminary information communicates a condtion where SD card removed is being displayed on the radio display intermittently.
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ThisPI advises that engineering is working on a fix for this issue
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards to Engine Coolant Reservoir Being Overfilled with Discolored Coolant, Shudder, Shake, Vibration, Harsh Shift, Delayed Shift and/or Slipping Transmission Performance.
This engineering informational bulletin is requesting information from technicians to perform the check list provided...
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and contact the engineer listed in regards the Service 4WD message displayed on the driver information center (DIC).
This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged...
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Turbochargers Returned to Warranty Part Center.
This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This engineering informational bulletin is requesting information from technicians to take pictures of decals wrinkling,...
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peeling, bubbling, discoloration, delaminating and/or coming off and contact the engineer listed.
This engineering informational bulletin is requesting information from technicians to perform the check list provided...
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and contact the engineer listed in regards to Service Engine Soon (SES) Lamp illuminated and/or Service Emissions System message on the Driver Information Center (DIC).
This technical bulletin provides repair information to correct a customer concern of 2020 - 2022 Silverado and Sierra...
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Equipped with Diesel Engine Setting DTCs P20BB or P20C3.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards Service Emission System and/or DEF Level Low message on driver information center (DIC).
This technical bulletin provides repair information to correct a customer concern of Engine Wire Harness Chafing.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
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Dealers Only).
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold...
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or the vehicle has sat for a few hours.
This informational bulletin advises the tech of a possible loose bolts at the turbo actuator and to replace turbo if the...
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bolts have been found loose.
The informational bulletin explains the normal noises that are emitted from the engine once the engine is turned off.
This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.
This informational bulletin provides information on 6.6L Duramax Possible Oil Leak Path Information.
This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
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hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated that may be caused by gelling of fuel in cold temperatures.
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
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personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
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service or aftermarket calibrations.
This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through...
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failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.
This service bulletin provides a service procedure to correct a condition of a Ticking Noise from the Engine.
This Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308.
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Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
This Preliminary information communicates diagnostics to the dealer involving a vehicleshudder concern caused by the...
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camshaft actuator system that can be mistaken for a transmission issue.
This Preliminary information communicates to techniciansto advise dealership technicians to inspect the camshaft exciter...
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wheel and replaceit if necessary.
This Preliminary information communicates the possibility of a misfire or rough running concern and abnormal engine...
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noise due to excessive wear in exhaust roller follower axle pin.
This engineering information (EI) is requesting information from technicians to perform the check list provided and...
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contact the engineer listed in regards to Oil Leaking from Front of Engine.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
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engine related shudder.
Pre-Delivery & Maintenance
129 bulletinsThis Preliminary information communicates direction to find information atwww.gmupfitter.comfor Police and Special...
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Service Vehicles.
This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may...
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not pass California smog inspection or smog inspection in other states.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
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causing multiple customer concerns that do not have other diagnostic methods to identify them.
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes...
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E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
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Only).
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
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before being sold (prepping) to the customer.
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles...
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that request to disable or enable content.
This service bulletin provides information on proper use of floor mats.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S.
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Only).
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
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before being sold (prepping) to the customer.
This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special...
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Service Vehicles.
This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be...
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shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
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Only).
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center...
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(WPC) Parts Return Program.
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
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identification for warranty transactions (U.S. Only).
This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S.
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and Canada Dealers Only).
The bulletin provides direction on how to locate the Temporary Service Part (TSP) form in GlobalConnect.
This service bulletin explains how to identify possible DEF system contamination.
This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to...
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submit a Pre-Repair Authorization (PRA).
This service bulletin provides information for dealers/technicians on the process to disable and enable passive...
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unlocking.
This service bulletin describes the U.S.
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Dealer Special Tool Loan Program process.
This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal...
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operation.
This service bulletin advises the technician that the purge pump part number has changed and limited supply.
This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part...
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replacements.
This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S.
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Dealers Only).
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes...
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E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under...
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the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer...
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repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.
This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling,...
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Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle...
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services and maintenance on vehicles originating/sold in Canada.
This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part...
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replacements.
This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and...
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the warranty transaction submission procedures that support the Personal Property Damage process.
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
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Only).
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
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before being sold (prepping) to the customer.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
Read full bulletin
causing multiple customer concerns that do not have other diagnostic methods to identify them.
This service bulletin provides information on proper use of floor mats.
This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME)...
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FAQs.
This service bulletin provides information for dealers/technicians on the process to disable and enable passive...
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unlocking.
This service bulletin provides technicians with information to help identify the differences between what is considered...
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a fluid leak, and what is considered fluid seepage.
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical...
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Assistance Center (TAC).
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
This Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
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Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be...
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shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399,...
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E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles...
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that request to disable or enable content.
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate...
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Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center...
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(WPC) Parts Return Program.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
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Only).
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S.
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and Canada Dealers Only).
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
Read full bulletin
Only).
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
Read full bulletin
Only).
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to...
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submit a Pre-Repair Authorization (PRA).
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to...
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submit a Pre-Repair Authorization (PRA).
This Warranty Administration bulletin provides information on the proper use of the labor operation 0600014.
This informational bulletin advises the tech the possible causes of the DTCs that set and how to maintenance the issue.
This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats...
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warped or misshapen.
This service bulletin provides information for dealers/technicians on Over the Air (OTA) and In Market Enhancement (IME)...
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FAQs.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
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causing multiple customer concerns that do not have other diagnostic methods to identify them.
This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
This service bulletin describes the U.S.
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Dealer Special Tool Loan Program process.
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical...
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Assistance Center (TAC).
This service bulletin provides repair information to correct a customer concern of Rear View Camera Issues - DTCs B395A,...
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B395B, B395C, B101E, B101D.
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S.
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Dealers Only).
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
Read full bulletin
Only).
This service bulletin explains how to identify possible DEF system contamination.
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This service bulletin provides information on proper use of floor mats.
This service bulletin provides repair information to correct a customer concern of Rear View Camera Coaxial Related...
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Issues - DTCs B395A, B395B, B395C, B101E, B101D.
This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S.
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Dealers Only).
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
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vehicles before being sold (prepping) to the customer.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
Read full bulletin
Spin-On Oil Filters.
This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs.
This service bulletin explains how to identify possible DEF system contamination.
This informational bulletin provides information for dealers/technicians on Information on GM Accessories - Instructions...
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on Claim Submission on Dealer-Replaced Tonneau Covers During Warranty Period.
This Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
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Stability Activation and/or a Service Stability message on the Driver Information Center. Technician may find a Diagnostic Trouble Code C0710. Technician should inspect for vehicles modifications before any in-depth diagnostics are performed.
This Warranty Administration bulletin provides policy information on Causal Part requirements for transactions submitted...
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to GM for payment.
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
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identification for warranty transactions (U.S. Only).
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal...
Read full bulletin
operation.
This warranty administration bulletin provides policy information for variable diagnostic time allowances on select labor operations (U.S.
Read full bulletin
Only).
This service bulletin provides information for dealers/technicians on the process to disable and enable passive...
Read full bulletin
unlocking.
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under...
Read full bulletin
the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
This service bulletin provides information for dealers/technicians on the process to disable and enable passive...
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unlocking.
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S.
Read full bulletin
Dealers Only).
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles...
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that request to disable or enable content.
This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling,...
Read full bulletin
Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and...
Read full bulletin
the warranty transaction submission procedures that support the Personal Property Damage process.
This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling,...
Read full bulletin
Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.
This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center...
Read full bulletin
(WPC) Parts Return Program.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
Read full bulletin
Only).
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399,...
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E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
This service bulletin provides information on Handling Requests for Modifications to Permanently Import/Export Vehicles Between the U.S.
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and Canada.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
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Spin-On Oil Filters.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
Read full bulletin
causing multiple customer concerns that do not have other diagnostic methods to identify them.
This service bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
This warranty administration bulletin provides policy information requirements applicable to key fob replacement under...
Read full bulletin
the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs...
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(North America ONLY).
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to...
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submit a Pre-Repair Authorization (PRA).
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to...
Read full bulletin
submit a Pre-Repair Authorization (PRA).
This bulletin provides information on Warranty Administration Required Operating Procedures - 8 Points (U.S.
Read full bulletin
Only).
This warranty admin bulletin covers information on Essential Tools that include Consumable Parts.
This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part...
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replacements.
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats...
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warped or misshapen.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
Read full bulletin
Spin-On Oil Filters.
This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles...
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that request to disable or enable content.
This service bulletin provides service information for a DEF pump that is unable to build pressure after replacement.
This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center...
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(WPC) Parts Return Program Information.
This service bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S.
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Technical Assistance (TAC).
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
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vehicles before being sold (prepping) to the customer.
This service bulletin provides repair information to correct a customer concern of Possible Crank No Start or Extended...
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Crank with DTC P12A6.
This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S.
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Dealers Only).
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
Read full bulletin
Spin-On Oil Filters.
This technical bulletin provides repair information to correct a customer concern of Service Front Camera Message on the...
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Driver Information Center (DIC).
This service bulletin provides policy information on warranty administration guidelines for multiple repairs with...
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independent causes (GM Canada Dealers Only).
This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part...
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replacements.
Other
111 bulletinsThis Preliminary information communicates the possibility of DTC p0011 p0016 and potential for a rattle or ticking noise...
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to occur from the Intake Cam Actuator, or cover plate screws backing out and making contact with Cam carrier
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
New Vehicle Monitoring Programs Section in IVH
This informational bulletin provides information on Anti-Chip Coating Appearance.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
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feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary information communicates a possible retainer ring dis-lodged fora DTC P2714, may not have reverse as...
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well.
This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling...
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system and replace the parts that may be contaminated due to oil in system.
This informational bulletin advises the technician of which pan to use if the LCE has been replaced and to install an...
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aluminum pan should be used with a new LCE.
This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.
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Dealers are to inspect for something contacting the grill shutters as they open and close.
This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling...
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system and replace the parts that may be contaminated due to oil in system.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This technical bulletin provides repair information to correct a customer concern of Diagnostic Tips For Park Assist Off...
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Message / Unwanted Or False Park Assist Alerts / No DTCs.
This bulletin helps aid the tech in possible noise that may be normal or abnormal depending on the concern noted.
This Preliminary information communicates a possible retainer ring dis-lodged fora DTC P2714, may not have reverse as...
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well.
This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.
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Dealers are to inspect for something contacting the grill shutters as they open and close.
This technical bulletin provides a procedure to locate and repair a broken ground stud at the NOx converter.
This Preliminary information communicates a possible retainer ring dis-lodged fora DTC P2714, may not have reverse as...
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well.
This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found...
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by a possible faulty trailer connector.
This Preliminary information communicates a possible retainer ring dis-lodged fora DTC P2714, may not have reverse as...
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well.
This informational bulletin advises the technician of which pan to use if the LCE has been replaced and to install an...
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aluminum pan should be used with a new LCE.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
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and repair procedures.
This Preliminary information communicates a possible retainer ring dis-lodged fora DTC P2714, may not have reverse as...
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well.
This Preliminary information communicates to the dealer a process for accessing the procedure to add attachments to a GM...
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technical assistance case using the dealer case management tool.
This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
This informational bulletin advises the tech and the customer of a normal DEF operation while under high load conditions...
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and when the time is right to fill the DEF at that time frame.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
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and repair procedures.
This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high...
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amount of dirt or dust which can migrate to the filler cap area.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
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working on a LIN bus.
This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.
This Preliminary information communicatesdirection and examples when diagnosing multiple DTCs, one of which includes...
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U**** Byte 71 DTC.
This Preliminary information communicates the possibility of the Intake Cam Actuatorcover plate screws backing out and...
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making unwanted contact with the Cam Carrier.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate.
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Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.
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Dealers are to inspect for something contacting the grill shutters as they open and close.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up...
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on the glow plug causing a premature failure.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found...
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by a possible faulty trailer connector.
This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.
This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high...
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amount of dirt or dust which can migrate to the filler cap area.
This Preliminary information communicates how to isolate a tick noise from the rear axle housing.
This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
This informational bulletin provides Changes to the Automatic Stop/Start feature for Certain 2021 Escalade models,...
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Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon models Equipped with RPO NSS.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found...
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by a possible faulty trailer connector.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
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working on a LIN bus.
This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.
This technical bulletin provides a procedure to locate and repair a broken ground stud at the NOx converter.
This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
This informational bulletin provides graphs to help identify possible issues that may cause shaking and shudders and...
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what may be the cause of said issue.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
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and repair procedures.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This bulletin advises the technician of a possible coolant hose that might be kinked causing the customer concern.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise...
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coming from the rear of the vehicle.
This technical bulletin provides a procedure to correct the condition of Inadvertent/Unwanted Tail Gate Opening.
This technical bulletin provides repair information to correct a customer concern of No Alert Tones from Rear Cross...
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Traffic Alert.
This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.
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Dealers are to inspect for something contacting the grill shutters as they open and close.
This Preliminary information communicates the possibility of the Intake Cam Actuatorcover plate screws backing out and...
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making unwanted contact with the Cam Carrier.
This technical bulletin provides a procedure to locate and repair a broken ground stud at the NOx converter.
The technical bulletin provides a procedure to lube the yoke and caps if found the cause of the noise from the propshaft...
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area.
This technical bulletin provides repair information to correct a customer concern of Volume Selection Does Not Clear...
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from DIC After Adjusting Volume.
The informational bulletin advises the tech to use the glow plug bore cleaner to reduce the chance of soot building up...
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on the glow plug causing a premature failure.
This Preliminary information communicates a diagnostic tip for a thump, click, pop, clunk type noise that is heard from the front end.
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Dealers are to inspect for something contacting the grill shutters as they open and close.
This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.
This technical bulletin provides repair information to correct a customer concern of Unable to Dismiss Turn By Turn...
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Directions from the DIC.
This informational bulletin provides Changes to the Automatic Stop/Start feature for Certain 2021 Escalade models,...
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Silverado 1500, Suburban, Tahoe, Sierra 1500, Yukon models Equipped with RPO NSS.
This informational bulletin provides graphs to help identify possible issues that may cause shaking and shudders and...
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what may be the cause of said issue.
This Preliminary information communicatesinformation on how dealers can contact the supplier for Associated Accessories...
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offered through GM.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This Preliminary information communicates informationto diagnose DTC C056D or C056E.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This bulletin advises the technician of a possible coolant hose that might be kinked causing the customers concern.
This Preliminary information communicates and issue when driving at highway speeds (above 60 mph) that there is a noise...
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from the rear seat area that could be described as a buffering, pulsing, vibrating, roaring, booming type noise. Dealers are to fill the C pillar cavities with sound deadening material to correct the issue.
This technical bulletin advises the technician to rest the MIL and diagnose additional DTCs for why the code is setting...
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and disabling the start/stop system.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
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working on a LIN bus.
This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
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and repair procedures.
This informational bulletin explains how to identify possible DEF contamination.
This Preliminary information communicatesdirection and examples when diagnosing multiple DTCs, one of which includes...
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U**** Byte 71 DTC.
This informational bulletin provides graphs to help identify possible issues that may cause shaking and shudders and...
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what may be the cause of said issue.
This Preliminary information communicates diagnostics aids for rear view camera issues that may be encountered.
This informational bulletin advises the technician to check for faults that may be caused by the trailer other wise...
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found by a possible faulty trailer connector.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This informational bulletin provides information for dealers/technicians on Aero Shutter Related Diagnostic Codes.
This technical bulletin provides repair information to correct a customer concern of Unable to Set PIN to Enable Teen...
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Driver Feature.
This informational bulletin explains how the regen works for the DEF system and how it works at different levels.
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate.
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Dealer should advise the customer the specification for speedometer needle accuracy is +/- 2 MPH at any given speed when looking straight at the needle.
The intent of this technical bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
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causing multiple customer concerns that do not have other diagnostic methods to identify them.
This informational bulletin provides information on Information on Common Customer Trailer Side Faults.
This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
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Allegation Resolution (PAR) claim.
The technical bulletin provides a procedure to lube the yoke and caps if found the cause of the noise from the propshaft...
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area.
This informational bulletin provides graphs to help identify possible issues that may cause shaking and shudders and...
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what may be the cause of said issue.
This informational bulletin explains a normal condition for sludge to form in the oil cap when equipped with DEF system.
This informational bulletin explains how to identify possible DEF contamination.
Electrical
88 bulletinsThis Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC'ss
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
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detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This PI Addresses a possible solenoid wiring fault and how to inspect the build date to identify
The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
This Preliminary Information communication provides information to the technician about vehicles that have an...
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intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
This Preliminary information communicates an issue where an aftermarket autostop device or rear taillights is causing a...
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dead battery.
This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the...
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load on the system that may be causing a drain.
This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use...
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for certain repairs, such as Wiring Harness Repairs.
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
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detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to...
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inspect the body harness pass through for being full seated into the cowl.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
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a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
This Preliminary information communicates a GM part number forreflective high temperature heat or insulating tape when...
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repairing wiring harnesses.
This Preliminary information communicates information on faulty replacement K111Fuel Pump Driver Control Module.
This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the...
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load on the system that may be causing a drain.
This service bulletin provides information on key code security rules and information on GM keycode look-up applications...
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(U.S).
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This Preliminary Information communication provides the technician with steps to resolve the issue of an oily substance...
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that may be found on the inside windshield surface, and appears to be leaking from the rear view mirror area. Technician will remove the moisture sensor and clean the glass and mounting bracket with alcohol wipe. If the gel separates from the sensor the sensor will need to be replaced.
This Preliminary Information communication provides information to the technician about vehicles that have an...
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intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
This Preliminary information communicates a diagnostic tip for an SES MIL at startup with DTC U0100.
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Dealer are to test the accessory wake up circuit to the ECM for power.
This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to...
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inspect the body harness pass through for being full seated into the cowl.
This informational bulletin provides a way for the technician to identify if the ECM has been modified.
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles.
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It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.
This Preliminary information communicates an issue with the out of park signal, used by upfitters, being inoperative.
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Dealers are to reprogram the BCM with updated cals to enable the upfitter out of park signal.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) FAQs.
This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.
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Main cause is aftermarket electrical devices spliced into the ignition main fuses.
This Preliminary information communicates some diagnostic tips to inspect for no/low voltage at the ECM for a customers...
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complaints of a SES MIL, Crank No Start, stalling DTC's:P16A7 and/or P16AF.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
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a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
This Preliminary information communicates a GM part number forreflective high temperature heat or insulating tape when...
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repairing wiring harnesses.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to...
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inspect the body harness pass through for being full seated into the cowl.
This informational bulletin provides a way for the technician to identify if the ECM has been modified.
This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) FAQs.
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
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detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This Preliminary information communicates an issue where an aftermarket autostop device is causing a dead battery.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag...
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Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
This Preliminary Information communication provides information to the technician about vehicles that have an...
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intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to...
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increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights...
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shut off due to excessive load on the running lamp circuit.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
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warranty replacements.
This Preliminary information communicates an issue with the battery goes dead and provides diagnostics tips on...
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inspecting the LIN bus.
This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) FAQs.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This Preliminary information communicates an issue with a wind noise while driving at highway speeds and dealers are to...
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inspect the body harness pass through for being full seated into the cowl.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
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detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This service bulletin provides information for U.S.
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dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
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a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.
This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.
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Main cause is aftermarket electrical devices spliced into the ignition main fuses.
This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer...
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concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set.
This service bulletin provides information for U.S.
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dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
This service bulletin provides information on Module Harvesting.
This bulletin provides a possible location of a bad connection at the reductant fluid tanks electrical connector.
This informational bulletin provides a way for the technician to identify if the ECM has been modified.
Certain vehicles may have a condition where the Front Camera Module (FCM) becomes unresponsive and generates a Diagnostic Trouble Code (DTC).
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Dealers are to re-program the FCM with the latest software available.
This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a...
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condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
This technical bulletin provides a procedure to program the Reductant Control Module and Setup and Perform the Reductant...
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Fluid Tank Level Reset.
This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer...
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concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set.
This service bulletin provides information for U.S.
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dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer...
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concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set.
This technical bulletin provides repair information to correct a customer concern of Black Radio Display Screen and No...
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Communication with the Video Processing Module (VPM).
This informational bulletin provides a way for the technician to identify if the ECM has been modified.
This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and...
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causing a battery draw.
This Preliminary information communicates to technicians a replacement DEF tank may have been assembled with the...
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incorrect harness.
This service bulletin provides information for U.S.
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dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer...
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concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set.
This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag...
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Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.
This technical bulletin provides a procedure to replace the fuel injector and the wiring harness to correct a customer...
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concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P0201, P0202, P0203, P0204, P0205, P0206 and/or P0216 Set.
Transmission
71 bulletinsThis PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when...
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ordering
This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when...
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ordering
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when...
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the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer...
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concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This P/I is to advise to inspect the stacked plate heat exchanger as possible root cause for any trans concern.
This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and...
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repair of 8 Speed Transmissions
This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear...
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due to seeing grease or sealant on certain locations on the gear.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed...
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engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.
This bulletin helps aid the tech in possible transmission noise that may be normal or abnormal depending on the concern...
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noted.
This service bulletin provides repair information to correct customer concerns of Wheel Lock Up, ABS Event, Loud Bang...
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and a Flashing D on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
This Preliminary information communicates for Technicians installing a Service Replacement Transmission Assembly to...
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contact Technical Assistance to make sureunit is not suspect of a snap ring concern prior to installation.
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2...
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software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
This Preliminary information communicates and issue with a no crank, Key Learn Pending or Ready For FOB 3 Message,Unable...
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To Exit RVS With Push To Start Button,Symptoms Of A Dead Battery and has dealership inspect to see if the vehicle is falsely entering the manual transmitter programming and if so to replace the drivers power window switch.
This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud...
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Bang and a Flashing D on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if...
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found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer...
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concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This Preliminary information communicates and issue with a no crank, Key Learn Pending or Ready For FOB 3 Message,Unable...
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To Exit RVS With Push To Start Button,Symptoms Of A Dead Battery and has dealership inspect to see if the vehicle is falsely entering the manual transmitter programming and if so to replace the drivers power window switch.
This Preliminary information communicates diagnostic information for vehicles with transmission noise.
This Preliminary information communicates diagnostic information for vehicles with transmission noise
Certain vehicles may have a condition in which a transmission control body screen detaches from the spacer plate when...
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the vehicle is operated in extremely cold weather conditions. Dealers are to reprogram the Transmission Control Module.
This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if...
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found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities.
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The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the dealers to be more careful not to damage the transmissions during removal and to package the core properly for return.
This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if...
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found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer...
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concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This technical bulletin provides a procedure for the techs to replace the forward check ball and separator plate if...
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found the cause of the customers concern of No Forward Gear When Shifting from Park to Drive and/or Reverse to Drive.
This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
This Preliminary information communicates to have the dealer contact TAC with the transmission TUN number prior to...
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transmission installation.
This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer...
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concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First...
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Start Up/Shift of the Day Under Light Throttle.
This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring...
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harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the information provided in this document to obtain the internal wiring harness part numbers by application.
This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and...
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repair of 8 Speed Transmissions
This information bulletin advises the technician the difference between a welch cap leak and the output seal of the...
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t-case or transmission leaking ATF, causing the customer concern of a Red Fluid Leak from Center of Vehicle Located by Rear of Transmission or Transfer Case Area.
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First...
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Start Up/Shift of the Day Under Light Throttle.
This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud...
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Bang and a Flashing D on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when...
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the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2...
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software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
This service bulletin advises the technician to check if the transmission cooler lines are twisted to correct customer...
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concerns of Harsh Shift, Shudder, Surge, Stall, Transmission Overheating and/or High Transmission Fluid Temperature.
This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump.
This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
This service bulletin provides repair information to correct a customer concern of Blue or Black Screen and Service Rear...
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Vision System Message on Radio Display Shifting into Reverse.
This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump.
This informational bulletin advises the tech to check if the trans cooler lines are twisted which may cause the...
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customers concern.
This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump.
This information advises the technician the difference between a welch cap leak and the output seal of the t-case or...
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transmission leaking ATF causing the customers concern.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed...
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engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.
This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2...
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software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.
This informational bulletin explains how the trans slip or flare can be a normal condition.
This informational bulletin advises the technician of possibly installing the incorrect 1-2-7-8-R clutch fluid passage...
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seal and which seal should be used with measurements of the seal.
This informational bulletin advises the tech to check if the trans cooler lines are twisted which may cause the...
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customers concern.
This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud...
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Bang and a Flashing D on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if...
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no problem was found, to replace the tbv.
This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if...
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no problem was found, to replace the tbv.
This Preliminary information communicates to the dealer technician that if a customer comments thattheir vehicle...
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equippedwith a 6L80, 6L90, 8L90, 10L80, or 10L1000transmission has a harsh shift, shudder, stall or high transmission fluid temperature concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler line and inspect the cooler line for being misshaped. Technicians are instructed to replace the cooler line if it is misshaped.
This service bulletin provides repair information to correct a customer concern of Blue or Black Screen and Service Rear...
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Vision System Message on Radio Display Shifting into Reverse.
This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud...
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Bang and a Flashing ?D? on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear...
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due to seeing grease or sealant on certain locations on the gear.
This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud...
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Bang and a Flashing D on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.
This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First...
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Start Up/Shift of the Day Under Light Throttle.
This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts,...
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Slips, or Flares.
Fuel System
67 bulletinsThis PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and...
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advises of warranty direction.
This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State...
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who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.
This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for...
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analysis.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446,...
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P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This bulletin provides information to the tech on how to diagnosis the EGR system from possible issue that may cause the...
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DTCs to set and cause the customers concern of a MIL Illuminated.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This bulletin provides information on how to look for and test for DEF or water in the fuel system and what the specs...
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should be.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446,...
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P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
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the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.
This bulletin advises the tech that there are extra characters on the fuel injector and to ignore the last numbers when...
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identifying flow rate.
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
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cause of excessive soot from the tailpipe.
This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
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Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the...
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fuel system caused by a failed part.
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure...
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the line is reinstalled correctly to avoid a no/low fuel pressure situation.
This bulletin advises the tech that there are extra characters on the fuel injector and to ignore the last numbers when...
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identifying flow rate.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446,...
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P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on...
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DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.
This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on...
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DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
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feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.
This technical bulletin provides a procedure to correct the condition of Missing French Translation Label on Fuel Cap.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446,...
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P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
This informational bulletin provides information on Clean Exhaust Filter See Owner Manual Now or Cleaning Exhaust Filter...
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Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This service bulletin provides information on availability of Diesel Fuel additives.
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446,...
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P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This service bulletin provides information on availability of Diesel Fuel additives.
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
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cause of excessive soot from the tailpipe.
This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust...
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Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the...
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fuel system caused by a failed part.
This technical bulletin provides a procedure to replace the fuel feed line if found the cause of the failure which set...
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the DTC.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
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feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.
This Preliminary information communicates in temperatures below freezing, it may be noticed that exhaust is only exiting...
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from the right hand exhaust tailpipe. The cause of this condition is a low point in left side tailpipe which results in condensation building up at the low point in the tailpipe. In low temperatures the condensation can freeze and form ice limiting the flow of exhaust out of the left tailpipe. Dealers are to drill a small hole in the left tailpipe to allow condensation to drain.
This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.
This technical bulletin provides a procedure to replace the fuel feed line if found the cause of the failure which set...
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the DTC.
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
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customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the...
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fuel system caused by a failed part.
This service bulletin provides information on availability of Diesel Fuel additives.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
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cause of excessive soot from the tailpipe.
This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.
This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust...
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Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
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Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
This service bulletin provides the technician with additional information on fuels, fuel additives and fuel management.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
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additive.
This service bulletin provides information on availability of Diesel Fuel additives.
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the...
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fuel system caused by a failed part.
This bulletin provides diagnostic information when checking the exhaust system for leaks.
This Preliminary information communicates informationon correcting a rattle noise from the underbody exhaust heat...
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shield.
This Preliminary information communicates informationon correcting a rattle noise from the underbody exhaust heat shield
This technical bulletin provides a procedure to seal the exhaust at the UFSCR and Tailpipe flange.
This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable...
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diesel fuel.
This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust...
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Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
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Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
This service bulletin provides information on availability of Diesel Fuel additives.
THis informational bulletin advises the tech not to replace the exhaust system if they smell plastic or rubber.
This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the...
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fuel system caused by a failed part.
This information bulletin advised the tech of possible use of low fuel quality and the possible ramifications in...
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performance in regards to the customers concerns.
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
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cause of excessive soot from the tailpipe.
Body & Paint
47 bulletinsThis Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist...
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systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
Certain vehicles listed above, may have a condition in which the body-to-chassis ground strap may be corroded.
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Dealers will replace the ground strap.
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame...
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Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
This Preliminary information communicates an issue with a service keyless entry message caused by aftermarket door...
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handle covers and they should be removed.
This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the...
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same speed.
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame...
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Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when...
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addressing underbody component corrosion with customers.
This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that...
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have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.
This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame...
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peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.
This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the...
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shipping film.
This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist...
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systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
This Preliminary information communicates an issues with a service keyless entry message caused by aftermarket door...
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handle covers and they should be removed.
This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement...
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Guidelines.
This Preliminary information communicates an issues with a service keyless entry message caused by aftermarket door...
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handle covers and they should be removed.
This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame...
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peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This Preliminary information communicates an issues with water/ice building up on the door sill plate and advising...
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dealership to inspect and reseal the door water deflector.
This Preliminary information communicates that a dealer may find the underhood beauty covers missing.
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The dealer is advised that these are missing by design and should not be ordered for the vehicle.
This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal...
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characteristic.
This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed...
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Aluminum Wheels.
This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces,...
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Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
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coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
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coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist...
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systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
This technical bulletin provides a procedure to correct the condition of Suction Cup Marks on Window Glass.
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when...
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addressing underbody component corrosion with customers.
This Preliminary information communicates an issue where the minor tailgate will not open due to an aftermarket device...
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installed on the vehicle.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
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coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This service bulletin provides information on Paintless Dent Repair Process.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
This technical bulletin provides repair information to correct a customer concern of the foam strip between the I/P trim...
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and base of the windshield detaching from the upper I/P trim panel.
This Preliminary information communicates an issue with adaptive cruise and lane keep assist inoperative due to an...
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internal issue with the front view windshield camera. Dealers are to replace the camera.
This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement...
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Guidelines.
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when...
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addressing underbody component corrosion with customers.
This technical bulletin provides a procedure to correct the condition of Gap at Door Armrest Decorative Trim to the...
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Armrest/Door Switch.
This technical bulletin provides repair information to correct a customer concern of the Tri-Fold Tonneau paint finish...
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fading or discolored.
This Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist...
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systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal...
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characteristic.
This technical bulletin provides repair information to correct a customer concern of the foam strip between the I/P trim...
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and base of the windshield detaching from the upper I/P trim panel.
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and...
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Replacement Guidelines.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
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coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This technical bulletin provides a procedure to install 2 way tape to correct a condition of Trailering Connector Loose...
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Within Rear Bumper.
This informational bulletin provides information for dealers/technicians on power folding mirrors do not fold at the...
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same speed.
This Preliminary Information communication advises the technician the steps on diagnosing the concern.
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Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
This Preliminary information communicates an issue with the tailgate latch handle disengaging from the tailgate.
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Dealers are to remove the tailgate handle standoff brackets.
This Preliminary Information communication advises the technician the steps on diagnosing the concern.
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Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
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Technician should not replace any parts for this concern. Please communicate to the customer this condition is a normal operating characteristic of their vehicle.
Infotainment
42 bulletinsImprovements to OnStar functionality.
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During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Improvements to OnStar functionality.
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During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
This Preliminary information communicates to dealer to contact TAC for a specific display issue.
This PI is to inform dealers of a possible issue with an LVDS cable causing the radio to come on unwanted
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
This Preliminary information communicates to dealer to contact TAC for a specific display issue.
This Preliminary information communicates to dealer to contact TAC for a specific display issue.
This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation -...
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Flashing Diamond - Spot - or UFO like image on Camera Display.
This service bulletin provides a procedure to correct radio software concerns.
This Preliminary information communicates that it is normal for the tailgate todropfaster than it used to after the GM...
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Accessory Kicker Audio System isinstalled.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
This service bulletin provides a procedure to correct radio software concerns.
This service bulletin provides repair information to correct a customer concerns of Radio Software issues.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
This Preliminary information communicates to dealership technicians that if they receive a radio with the 2 stickers as...
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noted above, the radio was remanufactured with missing components and will need to order another radio unit from the ESC to properly repair the vehicle at this time.
This Preliminary information communicates that it is normal for the tailgate todropfaster than it used to after the GM...
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Accessory Kicker Audio System isinstalled.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
This service bulletin provides repair information to update radio software to correct customer concerns of Software...
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related issues.
This Preliminary information communicates that it is normal for the tailgate todropfaster than it used to after the GM...
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Accessory Kicker Audio System isinstalled.
This Preliminary information communicates to the technician that GM is aware of this concern with audio loss and the OnStar LED being red.
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GM is working on a solution to correct this customers concern.
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of...
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software related issues.
This Preliminary information communicates to the technician that GM is aware of this concern with audio loss and the OnStar LED being red.
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GM is working on a solution to correct this customers concern.
This service bulletin provides repair information to update radio software to correct customer concerns of Software...
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related issues.
This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer...
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concerns of radio software issues.
This Preliminary information communicates to the technician that GM is aware of this concern with audio loss and the OnStar LED being red.
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GM is working on a solution to correct this customers concern.
This service bulletin provides information for customers/dealers/technicians on Normal Camera Display Operation -...
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Flashing Diamond - Spot - or UFO like image on Camera Display.
This service bulletin provides repair information to correct a customer concern of Rear View Camera Display Gridlines...
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Dim.
This Preliminary information communicates to dealer of a possible concern with a display and the actions needed to...
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correct the concern.
This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer...
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concerns of radio software issues.
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of...
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software related issues.
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of...
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software related issues.
This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or...
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Returning to Default Values.
This service bulletin provides information on Terms and Conditions/Privacy Statement App (TCPS App) Guide for...
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infotainment systems in a default factory demo mode.
This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer...
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concerns of radio software issues.
This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer...
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concerns of radio software issues.
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of...
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software related issues.
This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer...
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concerns of radio software issues.
This service bulletin provides service information/procedures on continuous improvement Radio Software Version V158...
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Update to address customer comments on software related issues.
This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or...
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Returning to Default Values.
This Preliminary information communicates that it is normal for the tailgate todropfaster than it used to after the GM...
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Accessory Kicker Audio System isinstalled.
This service bulletin provides repair information to correct a customer concern of Radio System Settings Lost or...
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Returning to Default Values.
This service bulletin provides radio software version 135120 (IOR) update procedures to correct customer concerns of...
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software related issues.
Brakes
34 bulletinsThis Preliminary Information communication provides information to the technician about customers that may request the...
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factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of...
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Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated.
This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to...
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facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary Information communication provides information to the technician about customers that may request the...
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factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.
This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of...
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Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated.
This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and...
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strut due to fluid leak.
This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and...
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strut due to fluid leak.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
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that may have a "Check Trailer Wiring" or "Service Trailer Brake System message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
This Preliminary information communicates an issue with theHydrastar Electric Over Hydraulic trailer brake system...
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causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.
This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive...
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disk on gasket sealing surfaces or reused parts.
This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.
This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary Information communication provides information to the technician about customers that may request the...
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factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle.
This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of...
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Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated.
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
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that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
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to be replaced if the brake pedal moves or applies on its own at a full turn.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
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that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.
This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.
This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive...
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disk on gasket sealing surfaces or reused parts.
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
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theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary information communicatesa "Forward Collision System Reduced" message displayed on the DIC when...
Read full bulletin
theForward Automatic Braking has been set to the "Alert" setting. This is normal when theFAB has been set to "Alert".
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
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to be replaced if the brake pedal moves or applies on its own at a full turn.
This service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive...
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disk on gasket sealing surfaces or reused parts.
This Preliminary information communicates the location of the GM Accessory Performance Brake System Rotor Specifications
This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector...
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and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.
This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
Lighting
33 bulletinsThis preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL...
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along with several low speed lan DTCs.
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a...
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written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owners manual and warranty insert containing this information in English and Spanish.
Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a...
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written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owners manual and warranty insert containing this information in English and Spanish.
This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL)...
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Illuminated - DTC P3055 Set.
This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or...
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Replaced During Warranty Coverage Period.
This Preliminary information communicates an issue of the wrong part number WSS being installed during a service...
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procedure and to warn dealership tech to make sure the correct part number WSS is installed.
This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance...
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Schedules.
This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or...
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Replaced During Warranty Coverage Period.
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed...
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Accessories.
This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in...
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Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
This bulletin advises the technician of a possible kinked coolant hose that might be causing the customers concern of a...
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Malfunction Indicator Lamp (MIL) Illuminated - DTC P026A Set.
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty...
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Coverage Period.
This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE)...
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Tires and PDI installed Limited Production Option (LPO) Tires.
This Preliminary information communicates to the dealers information related to aMalfunction Indicator Lamp (MIL)...
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Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.
This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or...
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Fog/Driving Lamp Damage.
This Preliminary information communicates an issue of the wrong part number WSS being installed during a service...
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procedure and to warn dealership tech to make sure the correct part number WSS is installed.
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed...
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Accessories.
This informational bulletin provides information on the turn signal stalk not cancelling and/or mis cancelling.
This Preliminary information communicates to the dealers information related to aMalfunction Indicator Lamp (MIL)...
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Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
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This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in...
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Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty...
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Coverage Period.
This informational bulletin provides Information on Light Duty Silverado and Sierra Correct Spare Tire Size for...
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Accessory Wheel Packages.
This Preliminary information communicates to the dealers information related to aMalfunction Indicator Lamp (MIL)...
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Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.
This Preliminary information communicates to the dealers information related to aMalfunction Indicator Lamp (MIL)...
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Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting.
This service bulletin provides information on Dealer Installed LPO Wheel Installation and Return Process.
This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty...
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Coverage Period.
This Preliminary information communicates an issue of the wrong part number WSS being installed during a service...
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procedure and to warn dealership tech to make sure the correct part number WSS is installed.
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
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This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction.
This technical bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp...
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Illuminated with DTC P06DD, P2B60, P26BB, P1098 Set.
This service bulletin provides information on GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE)...
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Tires and PDI installed Limited Production Option (LPO) Tires.
Tires & Wheels
22 bulletinsThis service bulletin provides information on Tire Sidewall Irregularities.
This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM...
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Vehicles.
This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab...
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and pickup box on driver side of vehicle.
This technical bulletin provides repair information to correct a customer concern of the pickup box being out of...
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alignment.
This technical bulletin provides repair information to correct a customer concern of Trailer Tire Pressure Only Reading...
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Up To 100 PSI, New Parts To Increase To 147 PSI.
This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
This service bulletin provides a procedure to replace the front wheel drive shaft to correct a customer concern of a...
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Squeak/Chirp Noise from Front Axle in 2wd.
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all...
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repairs requiring balance and Road Force measurement.
This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab...
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and pickup box on driver side of vehicle.
This technical bulletin provides repair information to correct a customer concern of the pickup box being out of...
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alignment.
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are...
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Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all...
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repairs requiring balance and Road Force measurement.
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are...
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Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
This technical bulletin provides repair information to correct a customer concern of Trailer Tire Pressure Only Reading...
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Up To 100 PSI, New Parts To Increase To 147 PSI.
This service bulletin provides information for tire pressure monitoring (TPM) system concerns.
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate...
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ride characteristics of GM cars and trucks.
This technical bulletin provides a procedure to replace the front wheel drive shaft if found the cause of the custmers...
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concern.
This service bulletin provides information for tire pressure monitoring (TPM) system concerns.
This service bulletin provides information for accurate tire pressures that ensure the safe handling and appropriate...
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ride characteristics of GM cars and trucks.
This technical bulletin provides repair information to correct a customer concern of the pickup box being out of...
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alignment.
This technical bulletin provides repair information to correct a customer concern of vertical misalignment between cab...
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and pickup box on driver side of vehicle.
This informational bulletin provides the way to correctly tighten lug nuts to reduce the chances of damaging the cap...
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covers.
HVAC & Climate
14 bulletinsThis service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold...
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weather climates and testing those batteries.
This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the...
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heater core inlet and outlet hoses for being twisted or kinked.
This informational bulletin provides information on Outside Rear View Mirror Defog or Defrost Times Different for...
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Passenger and Driver Mirrors.
This Preliminary information communicates an issues will low or poor heater performance on the drivers side.
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Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.
This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the...
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heater core inlet and outlet hoses for being twisted or kinked.
This Preliminary information communicates how the HVAC setting operates during a remote vehicle start.
This informational bulletin provides information on Outside Rear View Mirror Defog or Defrost Times Different for...
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Passenger and Driver Mirrors.
This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the...
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heater core inlet and outlet hoses for being twisted or kinked.
This Preliminary information communicates an issue with poor a/c performance and to replace the a/c condenser.
This Preliminary information communicates an issues will low or poor heater performance on the drivers side.
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Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.
This Preliminary information communicates how the HVAC setting operates during a remote vehicle start.
This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
This Preliminary information communicates an issue with poor heater performance and advises dealerships to inspect the...
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heater core inlet and outlet hoses for being twisted or kinked.
Hybrid & EV
8 bulletinsThis service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or...
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USB Receptacle Inoperative.
This service bulletin provides information on AGM batteries that require less frequent charging in storage.
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO...
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updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest...
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ISO update on Apple 15 phones.
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest...
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ISO update on Apple 15 phones.
This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest...
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ISO update on Apple 15 phones.
This service bulletin provides information on AGM batteries that require less frequent charging in storage.
This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or...
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USB Receptacle Inoperative.
Steering
7 bulletinsThis service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent...
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Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.
This Preliminary Information communication provides information to the technician with additional information on the...
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functionality of Lane Keep Assist.Starting with2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane that has clearly identified markings. The electric power steering provides a gentle steering correction if a lane marking has been crossed and the driver has not actively responded.
This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent...
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Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.
This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent...
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Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.
This Preliminary information communicates a diagnostic tip to inspect the main ground connection when diagnosing any...
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lack of power steering assist issues with DTCsC1597 and/or C1599.
This service bulletin helps diagnose/reduce possible CCND issues on Transfer Cases - Service 4WD on DIC, Intermittent...
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Failures, Noise Concerns, Driveline/Steering Vibration/Shudder, Intermittent DTCs/MIL Illuminated, Engagement/Disengagement/Ratcheting Concerns.
This Preliminary Information communication provides information to the technician with additional information on the...
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functionality of Lane Keep Assist.Starting with2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane that has clearly identified markings. The electric power steering provides a gentle steering correction if a lane marking has been crossed and the driver has not actively responded.
Air Bags & Safety
3 bulletinsThis Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
This Preliminary information communicates assistance in locating theRear seat belt comfort guidesin the parts catalog.
This service bulletin provides information on availability for a seat belt extender.
Suspension
3 bulletinsThis Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel...
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fuel contamination that may occurduring refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel...
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fuel contamination that may occurduring refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel...
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fuel contamination that may occurduring refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
Software & Calibration
3 bulletinsThis service bulletin provides technicians with updated information to help identify the differences between what is...
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considered a fluid leak, and what is considered fluid seepage.
This service bulletin provides technicians with updated information to help identify the differences between what is...
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considered a fluid leak, and what is considered fluid seepage.
This service bulletin provides technicians with updated information to help identify the differences between what is...
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considered a fluid leak, and what is considered fluid seepage.