2014 Gmc Sierra 1500 TSBs
1,000 Technical Service Bulletins across 17 categories
Categories
Engine
284 bulletinsThis Preliminary information communicates a diagnostic tip for an issue where the starter stays engaged after the engine starts.
Read full bulletin
Dealers are to suspect/monitor the crankshaft position sensor.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
Read full bulletin
internal engine damage.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple...
Read full bulletin
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 technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
Read full bulletin
engine related shudder.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
Read full bulletin
caliper piston area found during a service of the vehicle. The substance is actually excess assembly grease from the caliper boot and piston.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
Read full bulletin
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 service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
Read full bulletin
and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed...
Read full bulletin
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...
Read full bulletin
GDS 2.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft...
Read full bulletin
issue.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
Read full bulletin
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 Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 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...
Read full bulletin
consumption.
This bulletin provides information on Policies Applicable to All U.S.
Read full bulletin
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 graphics, information and guidelines for engine component wear to assist service...
Read full bulletin
personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.
This Preliminary Information communication provides information to the technician that a customer may request the...
Read full bulletin
factory Integrated Trailer Brake Control be bypassed and their aftermarket trailer brake controller be installed instead. Technician will need to gain access to the body harness. Install trailer brake controller harness General Motors part number 23184088 into Middle Bus Electrical Center (X61A).
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
Read full bulletin
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.
Read full bulletin
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 changing the tire and wheel size on vehicles.
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
service or aftermarket calibrations.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
Read full bulletin
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...
Read full bulletin
consumption.
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this...
Read full bulletin
occurrence.
This Preliminary information communicates to the dealer an issue where the vehicle's engine may crank over unprompted andnot start afterward.
Read full bulletin
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 service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the...
Read full bulletin
possibilities of what may happen using the incorrect filter.
This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
Read full bulletin
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 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.
Read full bulletin
GM has determined that wheel refinishing under warranty will no longer be performed.
Engine Cranks But Will Not Start May Set P00C6.
Engine Cranks But Will Not Start May Set P00C6.
Engine Cranks But Will Not Start May Set P00C6.
Engine Cranks But Will Not Start May Set P00C6.
Transmission Valve Body.
Transmission Valve Body.
Engineering Information
Engineering Information
Engineering Information
Engineering Information
Engineering Information.
Engineering Information.
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with...
Read full bulletin
conductive finish.
Programming IPC Engine Hours Into A Replacement IPC.
Blower Motor Is Inoperative At Startup.
This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed...
Read full bulletin
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 advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct...
Read full bulletin
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 communication provides information to the technician about fluid leaking from the brake...
Read full bulletin
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 service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
Read full bulletin
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...
Read full bulletin
and improve fuel economy.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
service or aftermarket calibrations.
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact...
Read full bulletin
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.
Various Engine Noises During Cold Start and Warm Engine Operation
Various Engine Noises During Cold Start and Warm Engine Operation
Various Engine Noises During Cold Start and Warm Engine Operation
Identifying Non-GM ECM Calibration Use and Power-Up Hardware Detection in Duramax Diesel Engines Using GDS 2
This Preliminary Information communication provides information to the technician about vibration complaints that are...
Read full bulletin
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 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...
Read full bulletin
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 Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
Read full bulletin
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 have had multiple...
Read full bulletin
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.
PSR-Overheated Exhaust Components - Equipped with 4.3L Engine (LV1/LV3)
PSR-Overheated Exhaust Components - Equipped with 4.3L Engine (LV1/LV3)
Product Emission Recall - Fuel Pump Pressure Regulator Replacement - Equipped with 4.3L Engine (LV3) OR 5.3l Engine...
Read full bulletin
(L83)
Service Update for Inventory and Customer Vehicles Possible Fuel Odor/Seepage from Fuel Pump Expires with Base Warranty...
Read full bulletin
- 1500 Series Equipped with 5.3L V8 Engine (L83)
Service Update f or Inventory and Customer Vehicles Rough Engine Operation, DTC P16A1, DML, Reduced Power Mode Expires...
Read full bulletin
with Base Warranty - Equipped with 5.3L V8 Engine (L83)
Information for Engine Oils Used in 2014 Model Year Vehicles
Various Engine Noises During Cold Start and Warm Engine Operation
Various Engine Noises During Cold Start and Warm Engine Operation
Various Engine Noises During Cold Start and Warm Engine Operation
Identifying Non-GM ECM Calibration Use and Power-Up Hardware Detection in Duramax Diesel Engines Using GDS 2
Global Information for GM dexos 1? and dexos 2?, Engine Oil Specifications
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and...
Read full bulletin
Recommendations.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
Read full bulletin
consumption.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the...
Read full bulletin
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...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This service bulletin provides graphics, information and guidelines for engine component wear to assist service...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
service or aftermarket calibrations.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
GDS 2.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
Read full bulletin
engine related shudder.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
Read full bulletin
consumption.
This service bulletin provides information to dealership personnel on automatic transmission shift and engine...
Read full bulletin
driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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...
Read full bulletin
issue.
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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...
Read full bulletin
issue.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
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...
Read full bulletin
internal engine damage.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
Read full bulletin
that have a no crank or a start and then immediate stall, Service Engine Soon Malfunction Indicator lamp may not be on when the ignition is in the run position. Technician may find Diagnostic Trouble Codes P0513 and or P262B may also be set. Technician will pulled the driver sill plate and inspect the wiring for damaged or corroded circuits. Technician will repair any damaged or corroded circuits.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This service bulletin provides information for after installation of a replacement upper valve body, the transmission...
Read full bulletin
may have no Reverse and no 2nd gear.
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
Read full bulletin
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 communication provides information to the technician that General Motors Technical...
Read full bulletin
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...
Read full bulletin
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 service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact...
Read full bulletin
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 Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
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 bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head...
Read full bulletin
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.
Read full bulletin
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...
Read full bulletin
and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This Preliminary information communicates diagnostic aid to help isolate possible repeat thermal by-pass valve concern.
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head...
Read full bulletin
gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running Hot.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
Read full bulletin
of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This Preliminary Information communication provides information to the technician to not remove the torque converter...
Read full bulletin
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 service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
Identification.
This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil...
Read full bulletin
consumption.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
service or aftermarket calibrations.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
Read full bulletin
internal engine damage.
This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the...
Read full bulletin
engine is started while diagnosing for noise from the engine or transmission.
This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and...
Read full bulletin
Recommendations.
This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions...
Read full bulletin
and improve fuel economy.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
Read full bulletin
engine related shudder.
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
Read full bulletin
Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
Read full bulletin
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 informational bulletin provides information on Damaged, Disassembled or Improperly Packaged...
Read full bulletin
Turbochargers Returned to Warranty Part Center.
This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold...
Read full bulletin
or the vehicle has sat for a few hours.
This service bulletin provides service information for customer concerns of an in-tank fuel pump whining noise, engine...
Read full bulletin
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 Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
service or aftermarket calibrations.
This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through...
Read full bulletin
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 information bulletin explains how to measure for oil consumption and possible reasons for loss of oil.
This technical bulletin provides a procedure to replace the camshaft actuator magnet to correct customer concerns of...
Read full bulletin
engine related shudder.
This Preliminary Information communication provides information to the technician about a no start or another concern...
Read full bulletin
after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
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 service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines...
Read full bulletin
and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This bulletin updates the position of General Motors on refinishing fully color painted aluminum wheels with base paint.
Read full bulletin
GM has established a new process for the way that refinishing under GM Warranty will be handled (U.S. ONLY).
Information bulletin explains a possible coolant leak coming from the cylinder head bolt areas.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
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 about fluid leaking from the brake...
Read full bulletin
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 communication provides information to the technician that General Motors Technical...
Read full bulletin
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...
Read full bulletin
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 communicates to dealers an issue on remanufactured engines with part numbers 19368174...
Read full bulletin
and19368176where the incorrect crankshaft timing gear was installed. Provides dealer with information to correct this condition.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Preliminary Information communication provides information to the technician about vehicles that the blower motor...
Read full bulletin
may be noisy or vibrate when running. This concern will only occur when the temperatures is below 32 degrees Fahrenheit and if the blower motor is removed while still cold, ice may be found on the blower motor cage. This concern could be caused by water leaking or snow ingestion into the Heater-Vent-Air Conditioning case. Technician is to perform normal water testing diagnostics while the Heater-Vent-Air Conditioning is running, looking for water leaking past the plenum cover. If water is leaking past the cover remove the cover and install a 12x12 snow resistant screen to the fresh air intake. Reseal and install the plenum cover cap using Kent air dry sealer or equivalent.
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 communication provides information to the technician about installing General Motors Accessory parts/kits.
Read full bulletin
Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
This Preliminary Information communication provides information to the technician that General Motors Technical...
Read full bulletin
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 communicates to dealers an issue on remanufactured engines with part numbers 19368174...
Read full bulletin
and19368176where the incorrect crankshaft timing gear was installed. Provides dealer with information to correct this condition.
Fuel Odor During Fuel Filling or During Idle, Possible P0442 or P0455 DTC SET
New Tool Availability - EN-48974-EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler...
Read full bulletin
Engine Coolant Leaks into Combustion Chamber
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
Information on Diesel Engine Ticking Noise
This service bulletin provides diagnostic information for a customer concern of engine vibration.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions...
Read full bulletin
and improve fuel economy.
This service bulletin provides diagnostic information for a customer concern of engine vibration.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions...
Read full bulletin
and improve fuel economy.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual...
Read full bulletin
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 about vehicles that have had multiple...
Read full bulletin
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 service bulletin provides information on replacing the intake manifold when the engine is replaced after severe...
Read full bulletin
internal engine damage.
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this...
Read full bulletin
occurrence.
This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact...
Read full bulletin
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 Preliminary Information communication provides information to the technician to not remove the torque converter...
Read full bulletin
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 bulletin provides information on Policies Applicable to All U.S.
Read full bulletin
Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
Clicking/Rattle Type Noise from Rear of Engine Some customers may comment on a clicking/rattle type noise coming from the engine compartment.
Read full bulletin
This may be caused by the starter shield contacting the transmission case and causing a rattle
Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center A Service Agent (Dealer)...
Read full bulletin
during vehicle service may need to replace an engine turbocharger (TC). Any turbocharger that is returned to the Warranty Parts Center (WPC) will be inspected by engineering for root cause failure. The Warranty Part Center (WPC) has received turbochargers returned by Service Agents that have been disassembled, damaged during removal from the engine, electrical harnesses or connectors that have been cut or removed from the turbocharger and/or improperly packaged turbochargers resulting in shipping damage.
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels.
Read full bulletin
GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
Refinishing Aluminum Wheels This bulletin updates General Motor's position on refinishing aluminum wheels.
Read full bulletin
GM does not endorse any repairs that involve welding, bending, straightening o re-machining. Only cosmetic refinishing of the wheel's coatings, using recommended procedures, is allowed. Evaluating Damage In evaluating damage, it is the GM Dealer's responsibility to inspect the wheel for corrosion, scrapes, gouges, etc. The Dealer must insure that such damage is not deeper than what can be sanded or polished off. The wheel must be inspected for cracks. If cracks are found, discard the wheel. Any wheels with bent rim flanges must not be repaired or refinished. Wheels that have been refinished by an outside company must be returned to the same vehicle. The Dealer must record the wheel ID stamp or the cast date on the wheel in order to assure this requirement. Refer to Refinisher's Responsibility Outside Company later in this bulletin.
OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
Information on Diesel Engine Ticking Noise
This Preliminary Information communication provides information to the technician about engine block of possible...
Read full bulletin
cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
Read full bulletin
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.
Fuel Odor During Fuel Filling or During Idle, Possible P0442 or P0455 DTCs Set Some customers may comment on a strong...
Read full bulletin
fuel odor during fuel filling or during vehicle idle. Cause This may be caused by the fracture or breaking of the gasoline filler neck recirculation line connector Correction If you encounter a vehicle with the above concern, complete the following procedure: 1. Raise the vehicle and visually inspect the fuel tank filler vent hose connector for damage. Refer to Lifting and Jacking the Vehicle in SI. If connector is damaged, replace the fuel tank filler vent hose. Refer to Fuel Tank Filler Vent Hose Replacement in SI. If there is no damage to the connector, continue diagnosis referring to SI.
New Tool Availability EN-48974 EGR Cooler Pressure Tester Adapter Set to Diagnose Duramax Diesel Engine EGR Cooler...
Read full bulletin
Engine Coolant Leaks into Combustion Chamber
This preliminary information bulletin provides a procedure for radiator and engine coolant thermostat replacement to...
Read full bulletin
eliminate coolant smell and/or a slight leak at the radiator.
This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
Read full bulletin
GDS 2.
This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle...
Read full bulletin
engine oil consumption.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in...
Read full bulletin
Drive concern.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
Read full bulletin
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 communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
Read full bulletin
GDS 2.
This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle...
Read full bulletin
engine oil consumption.
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in...
Read full bulletin
Drive concern.
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
Read full bulletin
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 communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle...
Read full bulletin
Identification.
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair...
Read full bulletin
vehicles that may have a buffeting vibration and/or drone type noise, exhaust tone change, and/or body pressure booming. Replace or repair any of the issue that was found in the inspection.If the vehicle is equipped with a 4.3 liter or 5.3 liter engine an updated exhaust system is now available.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
Read full bulletin
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 Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
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 service bulletin provides information to correct a customer concern of an in-tank fuel pump whining noise, engine...
Read full bulletin
hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
service or aftermarket calibrations.
This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 information that will need to be provided to TAC to aid in diagnosing if a...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This technical procedure provides a procedure to replace the front oil crank seal on remanufactured engines only, if...
Read full bulletin
found the cause of the customers concern.
This Bulletin provides the technician with information on how to perform a oil consumption test and a procedure to...
Read full bulletin
replace the pistons if found the cause of the oil consumption.
This informational bulletin advises the technician of possible coolant entering the areas of the engine, either through...
Read full bulletin
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 Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This Preliminary information communicatesA vehicle may have a concern ofDTCP050D settingalongwith a P0300 after a cold start up.
Read full bulletin
White smoke and/or coolant odor may come from exhaust for an extended period of time at cold start as well. CauseCoolant getting into the cylinders, and provides direction for the repair.
This Preliminary Information communication provides information to the technician that General Motors Technical...
Read full bulletin
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 the technician with information on how to perform a oil consumption test and a procedure to...
Read full bulletin
replace the pistons if found the cause of the oil consumption.
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or...
Read full bulletin
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 Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air.
Read full bulletin
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 that General Motors and General Motors...
Read full bulletin
of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This Preliminary Information communication provides information to the technician that General Motors Technical...
Read full bulletin
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 on vehicles that may have an intermittent high idle.
Read full bulletin
If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.
This Preliminary Information communication provides information to the technician with the steps on diagnosing and...
Read full bulletin
repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set. Technician will use this preliminary information to find the brake pedal position data parameters in the scan tool, and also to provide some additional diagnostic help. These issues may be caused by an incorrect brake pedal position sensor input to the engine control module. Technician will verify with the scan tool if the engine control module has the correct parameters for the brake pedal position sensor. If an engine control module brake pedal position sensor relearn is performed, the truck may be temporarily repaired until the intermittent wiring issue between the engine control module and brake pedal position sensor occurs again. On 2014 and newer trucks inspect and repair any damage to X115 and X119. On the 2014 and previous trucks inspect and repair any damage to X205.
This Preliminary Information communication provides information to the technician that General Motors and General Motors...
Read full bulletin
of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.
This bulletin provides information on Policies Applicable to All U.S.
Read full bulletin
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 technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in...
Read full bulletin
Drive concern.
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold...
Read full bulletin
or the vehicle has sat for a few hours.
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a...
Read full bulletin
vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S.
Read full bulletin
Dealers Only).
This technical bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the...
Read full bulletin
customers concern of engine misfire, ticking noise and/or MIL Illuminated.
This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold...
Read full bulletin
or the vehicle has sat for a few hours.
This Preliminary Information communication provides information to the technician about vehicles that may have a Service...
Read full bulletin
Trailer Brake message in the Driver Information Center. Also the vehicle will have a Diagnostic Trouble Code U0415 set. Technician will fill the master cylinder brake fluid reservoir to the maximum level.
This warranty administration bulletin provides information on the tires supplied with a new vehicle are covered by...
Read full bulletin
General Motors against defects in material or workmanship under the Bumper-to-Bumper New Vehicle Limited Warranty.
This diagnostic tip provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
This informational bulletin explains the difference in AFM and DFM engines and what is and is not activated during this...
Read full bulletin
occurrence.
This Preliminary Information communication provides information to the technician about vehicles that may have a service...
Read full bulletin
engine soon malfunction indicator lamp, antilock braking system malfunction indicator lamp, service suspension system message, misfire, hesitation, no crank, heater-vent-air conditioning inoperative. Technician may find F11UA, F104UA, F35UA, and or F60UA blown. Technician should inspect the engine harness near the vacuum pump pulley to be chafing. Technician will need to reroute the wire harness and repair and damaged wires.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
Read full bulletin
Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for...
Read full bulletin
customer concerns related to wheel alignment.
This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin...
Read full bulletin
has been sheared away to correct a crank/No Start condition.
This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to...
Read full bulletin
correct 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 communication provides information to the technician how to repair vehicles that Instrument...
Read full bulletin
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 to the technician the need to inspect the induction system for potential icing...
Read full bulletin
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 communication provides information to the technician how to diagnose and repair a vehicle...
Read full bulletin
with an engine that runs with an intermittent crank no start with a Diagnostic Trouble Code P0011 or P00C6 current or history. The Camshaft Position Actuator Solenoid Valve may be sticking or binding causing the valve timing to be retarded. Dealer will need to cycle the Camshaft Position Actuator Solenoid Valve by energizing it using Global Diagnostic System 2.
This Preliminary information communicates to the dealer additional information on checking for the engne crankcase being...
Read full bulletin
overfull on oil causing an engine vibration concern. The technician is advised to inspect for contaminnants and adjust the engine oil level as needed.
This Preliminary Information communication provides information to the technician on the steps need to diagnose and...
Read full bulletin
repair vehicles that may have stalling shudder and/or hard shifting into 1st gear or reverse vibration on launch (with excessive crankshaft end play). Technician will test to determine if the crank shaft end play is within specification 0.0015?0.0086 inch. If end play is found to be out of specification, remove engine and inspect for possible crankshaft thrust bearing and/or crankshaft for wear. Inspect thrust bearing for wear on one side and crankshaft on that "mating" surface. If the thrust bearing has three vertical channels worn off replace connecting rod bearings, main bearings, thrust bearing and crankshaft. If working on a Corvette the oil tank with lines and oil cooler are both required to be replaced if equipped
This Preliminary Information communication provides information to the technician that a customer may request the...
Read full bulletin
factory Integrated Trailer Brake Control be bypassed and their aftermarket trailer brake controller be installed instead. Technician will need to gain access to the body harness. Install trailer brake controller harness General Motors part number 23184088 into Middle Bus Electrical Center (X61A).
This Preliminary Information communication provides information to the technician about fluid leaking from the brake...
Read full bulletin
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 diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin...
Read full bulletin
has been sheared away.
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles.
Read full bulletin
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 on the steps to diagnose and repair...
Read full bulletin
vehicles that may have a buffeting vibration and/or drone type noise, exhaust tone change, and/or body pressure booming. Replace or repair any of the issue that was found in the inspection.If the vehicle is equipped with a 4.3 liter or 5.3 liter engine an updated exhaust system is now available.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
Read full bulletin
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 engineering informational bulletin is requesting information on a scraping noise heard from under the vehicle while...
Read full bulletin
driving.
This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle...
Read full bulletin
engine oil consumption.
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or...
Read full bulletin
transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
N182202780 01 - Special Coverage.
Read full bulletin
Certain Vehicles may have a condition where customers may experience increased brake pedal effort, hardbrake pedal, and/or potentially increased stopping distance. The condition is more prevalent at low speed when softly applyingthe brakes. The engine mounted mechanical vacuum pump outputmay decrease over time decreasing the amount of vacuum/power brake assist. Failure to follow recommended oil change intervalscould contribute to this condition. The Driver?s Information Center, (DIC) ?Service brake assist? alert will activate 2-5minutes after the vacuum level drops, and a Diagnostic Trouble Code, (DTC) will also be set. Even where this condition occurs,the hydraulic brake system remains functional but may require additionalpedal force. Please be aware that even if the vehicle exhibits this condition, it meets all federal motor vehicle safety standards forbrake performance. Dealers are to replace the vacuum pump and vacuum pump belt. The repairs will be made at no charge to the customer.
This Preliminary Information communication provides information to the technician on how the radio display gets the air ambient temperature.
Read full bulletin
On 1500 series trucks and all sport utility vehicle with regular production option code IO3 radio the ambient air temperature sensor is hard wired to the engine control module and then the signal goes on high speed local area network to the body control module from there on low speed local area network to the radio. On 1500 series trucks and all sport utility vehicle with regular production option code IO4, IO5, or IO6 the ambient air temperature sensor is hard wired to the engine control module and then the signal goes on high speed local area network to the body control module from there on low speed local area network to the radio then Most 50 Bus to the Human Machine Interface. On 2500/3500 series trucks production option code IO3 radio the ambient air temperature sensor is hard wired to the instrument panel cluster and then the signal goes on low speed local area network to the radio. On 2500/3500 series trucks production option code IO4, IO5, or IO6 radio the ambient air temperature sensor is hard wired to the instrument panel cluster and then the signal goes on low speed local area network to the radio then Most 50 Bus to the Human Machine Interface.
This Preliminary information communicates to the technician the need to inspect the induction system for potential icing...
Read full bulletin
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 communication provides information to the technician about vibration complaints that are...
Read full bulletin
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 diagnostic tip provides additional information on how to diagnose a possible valve, lifter or camshaft issue.
This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in...
Read full bulletin
Drive concern.
This diagnostic tip provides information to the tech to aid in performing a diagnostic test to verify if the camshaft...
Read full bulletin
alignment pin has been sheared away.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
Read full bulletin
that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Technician will replace timing chain tensioner guide. If oil pump face is damaged and or worn thru replace oil pump. Inspect bearings for damage wear due to debris from oil pump.
This Preliminary Information communication provides information to the technician about a no start or another concern...
Read full bulletin
after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
This Preliminary Information communication provides information to the technician that General Motors Technical...
Read full bulletin
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 about installing General Motors Accessory parts/kits.
Read full bulletin
Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact PARTECHand/orthe Techline Customer Support Center for additional support.
This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or...
Read full bulletin
GDS 2.
This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.
This informational bulletin provides information on replacing the intake manifold when the engine is replaced after...
Read full bulletin
severe internal engine damage.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
Read full bulletin
that may have Diagnostic Trouble Code P06DD or no or low oil pressure. Technician will replace timing chain tensioner guide. If oil pump face is damaged and or worn thru replace oil pump. Inspect bearings for damage wear due to debris from oil pump.
This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.
Read full bulletin
Technicians shouldrefer to Service Information for information regarding most accessories. Technicians mayalso contact Partechand/orthe Techline Customer Support Center for additional support.
This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with...
Read full bulletin
conductive finish.
This informational bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using...
Read full bulletin
the Tech 2 or GDS 2.
This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or...
Read full bulletin
transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
This Bulletin provides the technician with information on how to perform a oil consumption test and a procedure to...
Read full bulletin
replace the pistons if found the cause of the oil consumption.
This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper...
Read full bulletin
service or aftermarket calibrations.
This Preliminary Information communication provides information to the technician about vehicles that have a Service...
Read full bulletin
Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0340 and P0341 setting at times. Technician should use normal published Service Information diagnostics. If normal Service Information diagnostics does not isolate the concern, inspect for corrosion in connector X154 located on the front cover next to the vacuum pump.
This Preliminary Information communication provides information to the technician for a vehicle setting both a P2635 and...
Read full bulletin
P018B diagnostic trouble codes. The following steps may help to determine if this is caused by a fuel pressure sensor not reading the low end of the pressure range. Technician is to make sure the engine is cold and install the Multiple Diagnostic Interface along with Global Diagnostic System 2. Navigate to fuel system depressurize and at engine idle depressurize the fuel system. The fuel pressure sensor value should drop to 0 and the engine will stall. If a sensor is causing this concern the suspected sensor will not drop to 0 the engine will stall however the sensor will still read 30 to 40 pounds per square inch.
This Preliminary Information communication provides information to the technician about a no start or another concern...
Read full bulletin
after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
This Preliminary Information communication provides information to the technician about vehicles that are equipped with...
Read full bulletin
6L80 Regular Production Option Code (MYC), 6L90 Regular Production Option Code (MYD) or 8L90 Regular Production Option Code (M5U) Automatic Transmission, now have Powertrain Grade Braking. Powertrain grade braking assists when driving on a downhill grade to help maintain desired vehicle speed by using the engine and transmission to slow the vehicle.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal...
Read full bulletin
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 informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains...
Read full bulletin
how toptier fuels should be used to reduce carbon build up.
This Bulletin provides the technician with information on how to perform a oil consumption test and a procedure to...
Read full bulletin
replace the pistons if found the cause of the oil consumption.
This Preliminary Information communication provides information to the technician that General Motors Technical...
Read full bulletin
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 about vehicles that have either the...
Read full bulletin
truck or the snowplow's headlights are flickering or inoperative. There may be a diagnostic trouble code B2575 and or a B2699 set in the body control module. Technician will need to contact the snowplow manufacturer for additional information on their headlight changeover system. Technician is to refer to the latest version of the General Motors up-fitter integration bulletin 116 for additional information these circuits. Technician can find this information at http://www.gmupfitter.com/, under the "Technical Bulletin" Tab and then "Show all bulletins."
Other
143 bulletinsThis preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
New Vehicle Monitoring Programs Section in IVH
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...
Read full bulletin
feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic
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...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
50 terminal test probe, replacement terminals, and terminated leads.
This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling...
Read full bulletin
system and replace the parts that may be contaminated due to oil in system.
This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling...
Read full bulletin
system and replace the parts that may be contaminated due to oil in system.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This Preliminary information communicates to the dealer a process for accessing the procedure to add attachments to a GM...
Read full bulletin
technical assistance case using the dealer case management tool.
This Preliminary information communicates a restricted part due to stock limitation.
This Preliminary information communicates to dealers GM is working on a solution for outdated Apps
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
This Preliminary information communicatesdirection and examples when diagnosing multiple DTCs, one of which includes...
Read full bulletin
U**** Byte 71 DTC.
This Preliminary information communicates a restricted part due to stock limitation.
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate.
Read full bulletin
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 bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
Read full bulletin
Allegation Resolution (PAR) claim.
Important Information Needed When Calling TAC for Diagnostic Help on Vibration Complaints.
This Preliminary information communicates a restricted part due to stock limitation.
This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full...
Read full bulletin
size pickups and how to correct and repair.
Information on Driveline Clunk Noise
Information on Driveline Clunk Noise
Clunking Noise from Front of Vehicle During Turns and/or Bumps
Clunking Noise from Front of Vehicle During Turns and/or Bumps
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
Read full bulletin
Allegation Resolution (PAR) claim.
Incomplete Weld on the Seat Hook Bracket Assembly
Upfitter Auxiliary Switches
Owner Manual Insert ? Gross Combined Vehicle Weight Rating (GCVWR) incorrect
Installation Of Upfitter Auxiliary Switches.
Emergency Vehicle Reduced Power
This preliminary bulletin provides additional guidance for diagnosing vibrations or disturbances that may occur on full...
Read full bulletin
size pickups and how to correct and repair.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
Speedometer Needle Accuracy Information.
Bump Feel Or Clunk Noise After A Stop.
J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
Terminal Test Probe And Replacement Terminal.
Odometer Servicing When The Odometer Cannot Be Set To The Actual Mileage.
Speedometer Needle Accuracy Information.
Bump Feel Or Clunk Noise After A Stop.
J-35616-64B Terminal Test Probe / Replacement Terminal / Terminated Lead.
Terminal Test Probe And Replacement Terminal.
Changing Turn-By-Turn Voice Response To Metric Or English Units
CSP-Pinion Nut Improperly Fastened - Equipped with 3.73 Rear Axle Ratio (GT4) and Locking Rear Differential (G80)
CSP- Missing Floor Mats - Equipped with Rubber Floor Mats (B32)
CSP-Missing Floor Mats
PAC Courtesy Transportation Assistance Program
Information on Recreational, Dinghy or Flat Towing Procedure
Information on Recreational, Dinghy or Flat Towing Procedure
New Global Labor Codes
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Car and Truck Fix it Right the First Time Issues
Information on Driveline Clunk Noise
Information on Driveline Clunk Noise
Clunking Noise from Front of Vehicle During Turns and/or Bumps
Clunking Noise from Front of Vehicle During Turns and/or Bumps
Whistle Noise From Inside Vehicle.
No Crank And/Or Click No Crank
No Crank And/Or Click No Crank
No Crank And/Or Click No Crank
No Crank And/Or Click No Crank
Canadian Customers Unable To Place Calls And Turn By Turn Inoperative In The United States.
Canadian Customers Unable To Place Calls In The United States
Intermittent Crank No Start With DTC P1682.
Installation Of The GM Accessory Chrome Tow Hooks.
Excessive Dust Intruding Into The Cabin Interior.
Front Driver Or Passenger Seat Cover / Cushion Loose.
Center Seat Accessory Power Outlet Inoperative.
DTC B2600 and B2605 Set With No Other Symptoms
DTC B2600 and B2605 Set With No Other Symptoms
GM TAC Support of Vehicle Vibration Complaints.
Aftermarket ALDL or DLC Interface Devices Causing Multiple Issues
dealer Empowerment Labor Operations and Customer Enthusiam
Enable and Empower Project
This bulletin is being revised to add additional Mandatory Minimum Tables and additional information concerning Policy decision making.
Read full bulletin
Please discard Corporate Bulletin Number 11-00-89-005D (Section 00 ? General Information).
Odometer Servicing When The Odometer Cannot Be Set To The Actual Mileage.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This Preliminary information communicatesinformation on how dealers can contact the supplier for Associated Accessories...
Read full bulletin
offered through GM.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
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...
Read full bulletin
U**** Byte 71 DTC.
Information.
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate.
Read full bulletin
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...
Read full bulletin
causing multiple customer concerns that do not have other diagnostic methods to identify them.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
Read full bulletin
Allegation Resolution (PAR) claim.
This informational bulletin explains how to identify possible DEF contamination.
This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
This Preliminary information communicatesinformation on how dealers can contact the supplier for Associated Accessories...
Read full bulletin
offered through GM.
This informational bulletin provides information on a guide to help reduce repeat visits for the same customer concern.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
Clunking Noise from Front of Vehicle During Turns and/or Bumps
Information on Mounting Points for Pickup Box Accessories
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This Preliminary information communicatesinformation on how dealers can contact the supplier for Associated Accessories...
Read full bulletin
offered through GM.
This informational bulletin provides information on proper use of floor mats.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
Read full bulletin
Allegation Resolution (PAR) claim.
Information on Mounting Points for Pickup Box Accessories
Essential Tools that Include Consumable Parts (U.S.
Read full bulletin
Only)
Information Regarding the Differences Between Fluid Leakage and Seepage This bulletin is intended to help identify...
Read full bulletin
the differences between what is considered a fluid leak and what is considered seepage. Improper diagnosis may lead to unnecessary component replacement. Use the following information to determine if the condition is normal acceptable seepage or a defective component
IPC Odometer Programming Method Quick Reference Guide
This technical bulletin provides a procedure to reset the DTCs and take the vehicle for a test drive to verify the codes...
Read full bulletin
do not return.
The intent of this technical 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 informational bulletin explains how to identify possible DEF contamination.
This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product...
Read full bulletin
Allegation Resolution (PAR) claim.
This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change.
Read full bulletin
Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
This informational bulletin provides information for the IPC odometer programming method quick reference guide.
This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in...
Read full bulletin
higher CSi scores.
This Preliminary information communicatesinformation on how dealers can contact the supplier for Associated Accessories...
Read full bulletin
offered through GM.
This informational bulletin provides information on interior cleaning products and what is offered to clean the...
Read full bulletin
interiors of GM vehicles.
This Preliminary Information communication provides information to the technician about vehicles that the speedometer needle appears to be inaccurate.
Read full bulletin
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 informational bulletin provides information on interior cleaning products and what is offered to clean the...
Read full bulletin
interiors of GM vehicles.
This informational 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 informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the...
Read full bulletin
front grille or radiator area.
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S.
Read full bulletin
Technical Assistance (TAC).
This Preliminary Information communication provides information to the technician about vehicles that have a coolant...
Read full bulletin
loss and/or coolant odor after driving the vehicle. Technician will need to test the cooling system looking for leaks at the outer head bolts. If coolant is found replace the head the concern is present on.
This Preliminary information communicates a normal DIC message after learning keys/fobs which indicates the drivers...
Read full bulletin
memory position.
This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered...
Read full bulletin
normal operations.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada...
Read full bulletin
Only).
This informational bulletin provides information on comebacks prevention information and using customer concern...
Read full bulletin
verification sheets (CCVS).
This informational bulletin explains how to identify possible DEF contamination.
This informational bulletin provides information for the GM of Canada OnStar Cellular Communication Upgrade to 3G/4G LTE...
Read full bulletin
for vehicles that may need an upgrade.
This informational bulletin provides process information for the (GWM) and (WPC) parts return program.
This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when...
Read full bulletin
working on a LIN bus.
This Preliminary information communicatesdirection and examples when diagnosing multiple DTCs, one of which includes...
Read full bulletin
U**** Byte 71 DTC.
The intent of this technical 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 technical bulletin provides a procedure to change the diff fluid if found the cause of the customers concern.
This informational bulletin provides information for dealers/technicians and customers on steam/vapor coming from the...
Read full bulletin
front grille or radiator area.
This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information...
Read full bulletin
and repair procedures.
This informational bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S.
Read full bulletin
Technical Assistance (TAC).
Pre-Delivery & Maintenance
132 bulletinsThis warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
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 for dealers/technicians on Service Programming System (SPS) Error Codes...
Read full bulletin
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 policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
Read full bulletin
before being sold (prepping) to the customer.
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...
Read full bulletin
programs.
This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S.
Read full bulletin
Only).
This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
Read full bulletin
before being sold (prepping) to the customer.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
Read full bulletin
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.
Read full bulletin
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...
Read full bulletin
submit a Pre-Repair Authorization (PRA).
This service bulletin describes the U.S.
Read full bulletin
Dealer Special Tool Loan Program process.
This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal...
Read full bulletin
operation.
This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes...
Read full bulletin
E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer...
Read full bulletin
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,...
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 policy information to cover GMs policy on performing GM covered vehicle...
Read full bulletin
services and maintenance on vehicles originating/sold in Canada.
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 bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles...
Read full bulletin
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 technicians with information to help identify the differences between what is considered...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
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 information regarding the field action courtesy transportation policy.
Accessory Tonneau Cover Service Parts
This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399,...
Read full bulletin
E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
Vehicle Recalls
Vehicle Recalls
Vehicle Recalls
F/CMVSS NONCOMPLIANCE RECALL - Manual Seatback Recliner Lever
Safety Recall 13230 Q&A to Assist with Customer Inquiries
Changes in Powertrain Warranty Coverage Effective with 2010 Model Year
Accessory Tonneau Cover Service Parts
This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate...
Read full bulletin
Vibration Analysis-Road testing procedure when diagnosing vibration concerns.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
Read full bulletin
Only).
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S.
Read full bulletin
and Canada Dealers 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 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 Warranty Administration bulletin provides information on the proper use of the labor operation 0600014.
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...
Read full bulletin
warped or misshapen.
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 describes the U.S.
Read full bulletin
Dealer Special Tool Loan Program process.
This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical...
Read full bulletin
Assistance Center (TAC).
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 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 informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
Read full bulletin
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 explains how to identify possible DEF system contamination.
This Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
Read full bulletin
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...
Read full bulletin
to GM for payment.
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
Read full bulletin
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 When and How to Submit a Field Product Report (FPR) (U.S.
Read full bulletin
Dealers Only).
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 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,...
Read full bulletin
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.
Read full bulletin
and Canada.
This service bulletin provides service information on new torque specification and installation procedure for ACDelco...
Read full bulletin
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 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 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 service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats...
Read full bulletin
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 for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S.
Read full bulletin
Technical Assistance (TAC).
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
Read full bulletin
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 policy information on warranty administration guidelines for multiple repairs with...
Read full bulletin
independent causes (GM Canada 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 Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
Read full bulletin
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 a vibration analysis worksheet the technician can use in conjunction with the appropriate...
Read full bulletin
Vibration Analysis-Road testing procedure, when diagnosing vibration concerns.
This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front...
Read full bulletin
grille or radiator area.
This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal...
Read full bulletin
operation.
This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada...
Read full bulletin
Only).
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
Read full bulletin
programs.
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA).
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA).
This Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
Read full bulletin
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 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.
Read full bulletin
Dealers Only).
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
Read full bulletin
identification for warranty transactions (U.S. Only).
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
Read full bulletin
vehicles before sold (prepping) to the customer.
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA).
This service bulletin provides information for dealers/technicians on accessory all-weather floor liners and flat mats...
Read full bulletin
warped or misshapen.
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 for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA).
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 for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA).
This service bulletin provides information on Improved Oil Filter Gasket Design for Spin-On Oil Filters PF63, PF64 and...
Read full bulletin
PF48.
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the...
Read full bulletin
information found in the service manual.
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 information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA) (US dealers only).
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the...
Read full bulletin
information found in the service manual.
This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S.
Read full bulletin
Only).
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the...
Read full bulletin
information found in the service manual.
This informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the...
Read full bulletin
vehicles before sold (prepping) to the customer.
This Preliminary Information communication provides information to the technician about vehicles that have an unwanted...
Read full bulletin
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 for courtesy transportation and roadside assistance...
Read full bulletin
programs.
This warranty administration bulletin provide policy information to cover GMs policy on performing GM covered vehicle...
Read full bulletin
services and maintenance on vehicles originating/sold in Canada.
This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer...
Read full bulletin
repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA) (US dealers only).
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes (E4398,...
Read full bulletin
E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
This Preliminary Information communication provides information to the technician only to provide additional tips when...
Read full bulletin
diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information. Always, perform and refer to Service Information for the latest diagnostic information and procedures.
This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a...
Read full bulletin
Pre-Repair Authorization (PRA) (US dealers only).
This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the...
Read full bulletin
information found in the service manual.
This warranty administration bulletin provides information regarding the field action courtesy transportation policy.
This preliminary information bulletin provides information om Service Programming System (SPS) Error Codes E4398, E4399,...
Read full bulletin
E4403, M4404, M4413, E4414, E4423, E4491 or E6961).
This warranty administration bulletin provides policy information, proper labor operation selection and causal part...
Read full bulletin
identification for warranty transactions (U.S. Only).
This warranty administration bulletin provide policy information to cover GM's policy on performing GM covered vehicle...
Read full bulletin
services and maintenance on vehicles originating/sold in Canada.
Electrical
82 bulletinsThis service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
Read full bulletin
detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This Preliminary Information communication provides information to the technician about vehicles that have an...
Read full bulletin
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 service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use...
Read full bulletin
for certain repairs, such as Wiring Harness Repairs.
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
Read full bulletin
detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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...
Read full bulletin
repairing wiring harnesses.
This service bulletin provides information on key code security rules and information on GM keycode look-up applications...
Read full bulletin
(U.S).
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
This Preliminary Information communication provides information to the technician about vehicles that have an...
Read full bulletin
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.
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles.
Read full bulletin
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 warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
Special Return - Fuel Tank Module Kit: ACDelco Part Number M10256 (select date codes)
High Voltage Safety ? High Voltage Disabling
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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...
Read full bulletin
repairing wiring harnesses.
This Preliminary Information communication provides information to the technician about vehicles that may have a radio...
Read full bulletin
backlighting will stay on even after the ignition has been turned off and the key has been removed for several minutes, eventually the battery will drain. Technician may find following fuses F23DL F22DL F30DL F31DL F32DL with the ignition key in the off position to have voltage. Technician should not replace the Transfer Case Control Module. Technician will need to install a diode, part number 12112422, across the coil of the solenoid. It is important that the striped end of the diode be connected to the positive terminal of the coil and the other end of the diode be connected to ground.
Installation Of Electrical Aftermarket Accessories.
Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
This warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
Unwanted Alarm Sounding (GM Accessory Inclination Sensor Mounting)
Service Update for Inventory and Customer Vehicles Human Machine Interface (HMI) Module Softlware Update Expries with Base Warranty.
Read full bulletin
Equipped with Base Radio (IO4) and Located in Middle East
Service Update for Inventory and Customer Vehicles BCM Communicastion Error - Reprogram BCM Expires with Base Warranty
Service Update for Inventory and Customer Vehicles Incorrect battery Current Sensor jon Negative Battery Cable Assembly...
Read full bulletin
Expires with Base Warranty
GM Wiring Repair Strategy Information
Special Return - Fuel Tank Module Kit: ACDelco Part Number M10256 (select date codes)
Unable to Clear BCM DTCs After Completing Repair
Unable to Clear BCM DTCs After Completing Repair
High Voltage Safety ? High Voltage Disabling
Roof Beacon Lighting Harness Location.
OnStar Module Does Not Support All B101D Symptom Codes.
Ignition Key Cannot Be Turned.
Ignition Key Cannot Be Turned.
Hard Or Unable To Rotate Ignition Key From The Off Position.
Updated Left and Right I/P Fuse Block Labeling.
Updated Left and Right I/P Fuse Block Labeling.
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing (Follow...
Read full bulletin
Procedure as Outlined Below)
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
Read full bulletin
detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This Preliminary Information communication provides information to the technician about vehicles that have an...
Read full bulletin
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 warranty administration bulletin provides policy information on the requirements for 12V battery testing and...
Read full bulletin
warranty replacements.
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage...
Read full bulletin
detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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 service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
This service bulletin provides information on Module Harvesting.
This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a...
Read full bulletin
condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
This technical bulletin provides a procedure for testing the battery cables for voltage drop, Checking for a bad ground...
Read full bulletin
at g218, Inspecting for a short at the starter B+ to shield and testing for a faulty battery.
This service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical...
Read full bulletin
connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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 communication provides information to the technician about vehicles that have an...
Read full bulletin
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 communication provides information to the technician about vehicles that have an...
Read full bulletin
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.
Changing to Camper Outside Rearview Mirrors Some customers may request to have camper style mirrors installed on their vehicle.
Read full bulletin
The new electrical architecture for the Silverado and Sierra has made swapping mirrors a more involved procedure than with previous models. The recommendation has been divided into three upgrades, depending on which mirrors the truck was built with (RPO DE2, DL8 or DL3). Please follow the correct RPO group below, because not all camper mirrors can be installed on all trucks. After selecting the correct RPO mirror the truck was built with, this PI will aid in determining which camper mirrors can be installed.
Malfunction Indicator Lamp Illuminated (MIL) - DTC P2635 and/or P018B Set In High Ambient Temperatures With Hesitation,...
Read full bulletin
Surging and Stalling Condition Some customers may comment that the Malfunction Indicator Light (MIL) is illuminated. Some customers may also comment on one or more of the following symptoms: Hesitation Surging Stalling Note: In ambient temperatures 100 F (37.7 C) degrees or higher, DTCs P2635 and/or P018B may set. The Technician may find one or more of the following DTCs set: P2635 P018B Cause This condition may be caused by a vapor buildup in fuel feed line. Correction If the conditions stated above are met, replace the fuel pump module with an updated version
Changing to Camper Outside Rearview Mirrors Some customers may request to have camper style mirrors installed on their vehicle.
Read full bulletin
The new electrical architecture for the Silverado and Sierra has made swapping mirrors a more involved procedure than with previous models. The recommendation has been divided into three upgrades, depending on which mirrors the truck was built with (RPO DE2, DL8 or DL3). Please follow the correct RPO group below, because not all camper mirrors can be installed on all trucks. After selecting the correct RPO mirror the truck was built with, this PI will aid in determining which camper mirrors can be installed.
Information for Fleet Vehicles Ignition Key, Fob and Key Rings Configuration Some Customers are bundling multiple...
Read full bulletin
keys, fobs, and key tags together on a single crimped loop or a cable. This practice may result in unintended key rotation, and should be discontinued immediately. The information in this bulletin details the proper configurations for the ignition key, fob, key rings and key tags and applying a QR code sticker or barcode sticker to a key fob.
This Preliminary Information communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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 communication provides information to the technician about vehicles that are found to have...
Read full bulletin
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 service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical...
Read full bulletin
connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set.
This technical bulletin provides a procedure for testing the battery cables for voltage drop, Checking for a bad ground...
Read full bulletin
at g218, Inspecting for a short at the starter B+ to shield and testing for a faulty battery.
This Preliminary Information communication provides information to the technician about vehicles that have an...
Read full bulletin
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 communication provides information to the technician about vehicles that have an...
Read full bulletin
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 warranty administration bulletin explains to the technician that when using wiring repair labor operations,...
Read full bulletin
additional information may be needed when submitting Global Warranty transactions when doing wiring repairs.
Customer Satisfaction Program - Certain 2014-2019 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a...
Read full bulletin
power sliding rear window (RPO A48) may have areas of high electrical resistance on the rear defroster circuit. This could be caused, in part, by mechanical stress from opening and closing the rear power window, intrusion of debris, and use of the rear defroster. Over time, this condition could generate heat that could melt the areas surrounding the circuit. In rare instances, this heat could cause a non-propagating fire, increasing the risk of property damage or injury. Dealers will replace the buss bar covers and contact cover. If the rear window or sliding glass assembly appears damaged due to an occurrence of high electrical resistance on the rear defroster circuit, they should also be replaced.
Customer Satisfaction Program - Certain 2014-2019 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a...
Read full bulletin
power sliding rear window (RPO A48) may have areas of high electrical resistance on the rear defroster circuit. This could be caused, in part, by mechanical stress from opening and closing the rear power window, intrusion of debris, and use of the rear defroster. Over time, this condition could generate heat that could melt the areas surrounding the circuit. In rare instances, this heat could cause a non-propagating fire, increasing the risk of property damage or injury. Dealers will replace the buss bar covers and contact cover. If the rear window or sliding glass assembly appears damaged due to an occurrence of high electrical resistance on the rear defroster circuit, they should also be replaced.
This informational bulletin provides information on key code security rules and information on GM keycode look-up...
Read full bulletin
applications.
This technical bulletin provides repair information to correct a customer concern of Clock Shows Dashes and Cannot be...
Read full bulletin
Set After Battery Disconnect.
This informational bulletin provides information on key code security and information on GM key code look up...
Read full bulletin
applications.
This technical bulletin provides a procedure for testing the battery cables for voltage drop, Checking for a bad ground...
Read full bulletin
at g218, Inspecting for a short at the starter B+ to shield and testing for a faulty battery.
This Preliminary Information communication provides information to the technician about vehicles that may have any of...
Read full bulletin
these concerns remote keyless entry, passive Entry and Start Inoperative, No Fob detect message on driver information center, service tire pressure system, no audio, touch screen Inoperative, Steering Wheel Controls Inoperative, Service Stabilitrak, rear power windows inoperative, rear wiper inoperative, and or a dead battery. Technician may find Diagnostic Trouble Codes B3101, B144C, C0710, C0544, U1548, U1549, U154A, U0151, U0126, U0415, U0077, U0028 and/or U0029. Technician should inspect the left instrument panel for the wire harness being pinched. Technician will need to repair the wire harness and reroute the wire harness.
This bulleting provides Wiring, Terminal and Connector Repair Information including how to determine the Service Part...
Read full bulletin
Number in eSI and how to locate the part(s) in the EPC.
This Preliminary Information communication provides information to the technician about vehicles that may have any of...
Read full bulletin
these concerns remote keyless entry, passive Entry and Start Inoperative, No Fob detect message on driver information center, service tire pressure system, no audio, touch screen Inoperative, Steering Wheel Controls Inoperative, Service Stabilitrak, rear power windows inoperative, rear wiper inoperative, and or a dead battery. Technician may find Diagnostic Trouble Codes B3101, B144C, C0710, C0544, U1548, U1549, U154A, U0151, U0126, U0415, U0077, U0028 and/or U0029. Technician should inspect the left instrument panel for the wire harness being pinched. Technician will need to repair the wire harness and reroute the wire harness.
This bulletin explains the labor operation numbers used for submitting warranty claims for module reprogramming and not...
Read full bulletin
when replacing a module.
This Bulletin provides information to correct a customer concern of a siren or whine noise from the in-tank fuel pump at...
Read full bulletin
temperatures below -6C or 20F, accompanied by start and stall, no start, loss of power and MIL illuminated. Technicians may find DTCs P0087, P018B, P228A, P228B or P2635 set in ECM.
This technical bulletin provides a procedure to locate and repair a possible short in the 5294 circuit and correct the...
Read full bulletin
customers concern.
Body & Paint
72 bulletinsThis PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame...
Read full bulletin
Peeling, Metal Shows Corrosion/Rusting due to issue with getting product from current supplier listed in the bulletin.
This PI Communications information on an alternative product dealers can use to perform 19-NA-255: Wax Coating on Frame...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This service bulletin provides frame coating repair information to correct a customer concern of wax coating on frame...
Read full bulletin
peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal...
Read full bulletin
characteristic.
This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed...
Read full bulletin
Aluminum Wheels.
This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces,...
Read full bulletin
Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting.
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting.
Wax Coating on Frame Peeling, Metal Shows Corrosion/Rusting.
Rear Doors Intermittently will not Open from Inside.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
Sunroof Reverses When Closing At Highway Speeds.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when...
Read full bulletin
addressing underbody component corrosion with customers.
Paint-less Dent Repair Process
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
Paint Peeling Above Anti-Chip Area
Tailgate Emblem Loose Or Missing
Passenger Side Instrument Panel Performance
Passenger Side Instrument Panel Performance
Passenger Side Instrument Panel Performance
Service Update for Inventory and Customer Vehicles Underbody Appearance Expires with Base Warranty
Service Update for Inventory and Customer Vehicles Underbody Appearance Expires with Base Warranty
Service Update for Inventory and Customer Vehicles Power Sliding Rear Glass (A48)
Paint-less Dent Repair Process
Tailgate Makes A Pop/Click/Snap Type Noise When Opening.
Rear Sliding Glass Inoperative Or Noisy.
Rear Sliding Glass Inoperative Or Noisy.
Rear Sliding Glass Inoperative Or Noisy.
Front Door Window Belt Molding Retainer Bolt Corrosion
Front Door Window Belt Molding Retainer Bolt Corrosion
Rear Sliding Glass Inoperative Or Noisy.
Information on Tailgate Hinge Lubrication
Information on Windshield Wiper Blade Identification
Swapping Outside Rearview Mirrors RPOs DL8 / DL3 / DPN.
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.
Read full bulletin
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 preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when...
Read full bulletin
addressing underbody component corrosion with customers.
This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal...
Read full bulletin
characteristic.
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and...
Read full bulletin
Replacement Guidelines.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This Preliminary Information communication advises the technician the steps on diagnosing the concern.
Read full bulletin
Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
This Preliminary Information communication advises the technician the steps on diagnosing the concern.
Read full bulletin
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.
Read full bulletin
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 preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when...
Read full bulletin
addressing underbody component corrosion with customers.
Information on Inside Rear view Mirror and Camera Loose
This service bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Water Leaks and...
Read full bulletin
Replacement Guidelines.
This service bulletin provides information for dealers/technicians on glass ultraviolet (UV) Ray protection and tint...
Read full bulletin
percentage.
This service bulletin provides information regarding Witness Marks from Panel Adjustments Made During Manufacturing and...
Read full bulletin
that it is considered a normal condition.
This Preliminary Information communication provides information to the technician about vehicles that may have slack in one of the tailgate cables.
Read full bulletin
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 preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers.
Read full bulletin
Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers.
Read full bulletin
Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
Information on Inside Rear View Mirror and Camera Loose Some customers may comment that the inside rear view mirror or...
Read full bulletin
front camera is loose or that the mirror/camera mounting bracket is loose or has fallen off. If a vehicle is encountered with the above condition, do not attempt to reinstall the bracket onto the windshield. The above listed vehicles have a revised bracket design that is not serviceable. It is necessary to replace the windshield glass assembly. The bracket comes installed on the new glass assembly. Refer to Windshield Replacement in SI.
This Preliminary Information communication advises the technician the steps on diagnosing the concern.
Read full bulletin
Customer's sunroof operation intermittent, bind, noise, auto-reverse, and/or water leaks.
This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal...
Read full bulletin
characteristic.
Thins informational bulletin provides information on Paint-less Dent Repair Process.
This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed...
Read full bulletin
Aluminum Wheels.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces,...
Read full bulletin
Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces,...
Read full bulletin
Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This preliminary informational bulletin provides information to dealership personnel which may be helpful when...
Read full bulletin
addressing underbody component corrosion with customers.
This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces,...
Read full bulletin
Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.
This technical bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that...
Read full bulletin
have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.
This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax...
Read full bulletin
coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).
This Preliminary Information communication provides information to the technician about vehicles thatmay have Service...
Read full bulletin
Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view camera and ensure the camera is properly mounted.
This technical bulletin provides repair information to correct a customer concern of hearing excessive wind noise from...
Read full bulletin
front side door glass area.
This Preliminary Information communication provides information to the technician about vehicles thatmay have Service...
Read full bulletin
Front Camera, Service Lane Departure Warning, and Service Lane Keep Assist Message. Technician may find Diagnostic Trouble Code B1008 Sym 4B set. Technician will need to check the windshield to ensure it is not aftermarket. Technician will also check for anything that may impair the front view camera and ensure the camera is properly mounted.
This preliminary informational bulletin contains recommendations of what needs to be done to swap/install camper outside...
Read full bulletin
rearview mirrors on a vehicle not originally equipped with them.
Fuel System
69 bulletinsThis service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
Read full bulletin
additive.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
Read full bulletin
additive.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
Read full bulletin
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 service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
additive.
Duramax Fuel System Contamination Identification.
Duramax Fuel System Contamination Identification.
Exhaust Fluid Low
This Preliminary information communicates that when removing the fuel line jumper hose care should be taken to be sure...
Read full bulletin
the line is reinstalled correctly to avoid a no/low fuel pressure situation.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
Read full bulletin
that may have rattle or ticking noise that is louder inside the vehicle than outside. The noise may also sound like a lifter tick. If the noise is heard best at the fuel line and the sound will be real loud with a stethoscope. The fuel line will need to be replaced.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
Read full bulletin
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.
Navigation Radio, Radio, and Integrated Center Stack.
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System...
Read full bulletin
Driver Information Center Messages
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System...
Read full bulletin
Driver Information Center Messages
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System...
Read full bulletin
Driver Information Center Messages
Navigation Radio, Radio, and Integrated Center Stack.
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...
Read full bulletin
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...
Read full bulletin
additive.
This service bulletin provides information on availability of Diesel Fuel additives.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicles...
Read full bulletin
that may have rattle or ticking noise that is louder inside the vehicle than outside. The noise may also sound like a lifter tick. If the noise is heard best at the fuel line and the sound will be real loud with a stethoscope. The fuel line will need to be replaced.
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...
Read full bulletin
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...
Read full bulletin
Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
Read full bulletin
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 service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
Read full bulletin
customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
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...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
additive.
This service bulletin provides information on availability of Diesel Fuel additives.
This Preliminary information communicates provides information to the technician on the use of R-99 or R-95 Renewable...
Read full bulletin
diesel fuel.
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
Read full bulletin
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 service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the...
Read full bulletin
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 service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent...
Read full bulletin
additive.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
Read full bulletin
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.
Information on Exhaust fluid range, exhaust fluid quality poor, service exhaust fluid system or service emission system...
Read full bulletin
driver information Center Messages
Clean Exhaust Filter see owners manual now or cleaning exhaust filter keep driving until message is cleared displayed on...
Read full bulletin
DIC, DTC P2463 May be set
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
Read full bulletin
customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a...
Read full bulletin
customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
This technical bulletin provides a procedure to replace the fuel tank and internal parts if found expanding and...
Read full bulletin
contacting the drive shaft.
Information on Exhaust Fluid Range, Exhaust Fluid Quality Poor, Service Exhaust Fluid System or Service Emission System...
Read full bulletin
Driver Information Center Messages
This Preliminary information communicates theuse of Winter grade fuel during the warm months of 2020 and the potential...
Read full bulletin
rivabilityissues that it can cause. The ongoing Coronavirus (COVID-19) pandemic has caused significant reductions in driving and fuel use. Due to the surplus of winter grade fuel sitting in storage (pipelines/stations) the EPA is waiving the fuel vapor requirement. This will extend the use of winter fuel into the summer months. The drivability concernsshould not be single events but should be multiple occurrences associated with hot days.
CLEAN EXHAUST FILTER SEE OWNERS MANUAL NOW or CLEANING EXHAUST FILTER KEEP DRIVING UNTIL MESSAGE IS CLEARED Displayed on...
Read full bulletin
DIC, DTC P2463 May Be Set
This Informational Bulletin provides information on availability of Diesel Fuel additives.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
Read full bulletin
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 bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
Read full bulletin
Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of...
Read full bulletin
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 a procedure on how to perform a quick test to check if the DPF is the cause of...
Read full bulletin
excessive soot from the tailpipe.
This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the...
Read full bulletin
part and ordering it from the EPC.
This Preliminary information communicates theuse of Winter grade fuel during the warm months of 2020 and the potential...
Read full bulletin
rivabilityissues that it can cause. The ongoing Coronavirus (COVID-19) pandemic has caused significant reductions in driving and fuel use. Due to the surplus of winter grade fuel sitting in storage (pipelines/stations) the EPA is waiving the fuel vapor requirement. This will extend the use of winter fuel into the summer months. The drivability concernsshould not be single events but should be multiple occurrences associated with hot days.
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for...
Read full bulletin
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 provides information for rebuilding fuel injectors in the event of an underhood fuel odor and/or extended...
Read full bulletin
cranking condition.
This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust...
Read full bulletin
Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.
This Preliminary Information communication provides information to the technician about vehicles that may have a bump...
Read full bulletin
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 Informational Bulletin provides information on availability of Diesel Fuel additives.
This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of...
Read full bulletin
excessive soot from the tailpipe.
This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel...
Read full bulletin
Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.
This technical bulletin provides a procedure to replace high pressure pipes if found the cause of the fuel concerns.
This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of...
Read full bulletin
excessive soot from the tailpipe.
Transmission
58 bulletinsThe service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when...
Read full bulletin
the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear...
Read full bulletin
due to seeing grease or sealant on certain locations on the gear.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed...
Read full bulletin
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 service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities.
Read full bulletin
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 bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
Poor Shifting Transmission.
Poor Shifting Transmission.
Unwanted Transfer Case Shift to Neutral
Unwanted Transfer Case Shift to Neutral
This bulletin advises the technician that the 6L50 (MYB), 6L80 (MYC) and 6L90 (MYD) Transmission Oil Filter and Seal Kit...
Read full bulletin
part number 24236933 is currently transitioning from a kit to the filter (24236517) and seal (24225347) being sold individually.
This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating.
Read full bulletin
The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This concern may also be present while cruising at highway speeds and then an aggressive increase in throttle.This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to downshift.
Unwanted Grade Braking - Low Power - And/Or Transmission Busy Shifting.
Transmission Oil Cooler Connection
Transmission Oil Cooler Connection
Transmission Oil Cooler Connection
Unwanted Grade Braking - Low Power - And/Or Transmission Busy Shifting.
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Hose During Extreme Low Temperature...
Read full bulletin
Conditions
Change in Automatic Transmission Add Condition Documentation and Claim Submission
Various Audio Concerns Including Time-Shift Inoperative/Skipping/Choppy.
Electric Power Steering Gear Has Ended.
Electric Power Steering Gear.
Electric Power Steering Gear.
Electric Power Steering Gear.
Shift Lever Contacts Ignition Key
Power Steering Noise or Fluid Leak from Power Steering Pump, Gear or High Pressure Pressure Hose During Extreme Low...
Read full bulletin
Temperature Operation (Replace Power Steering Fluid)
This information bulletin advises the technician the difference between a welch cap leak and the output seal of the...
Read full bulletin
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.
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when...
Read full bulletin
the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
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 bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
This information advises the technician the difference between a welch cap leak and the output seal of the t-case or...
Read full bulletin
transmission leaking ATF causing the customers concern.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed...
Read full bulletin
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 communication advises the technician that the customer may experience a 2-3 slip or flare...
Read full bulletin
after the vehicle has been sitting for a period of time. Technician can update the Transmission Control Module if working on a model year 2007. On all other model years dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
This informational bulletin explains how the trans slip or flare can be a normal condition.
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear...
Read full bulletin
due to seeing grease or sealant on certain locations on the gear.
This warranty administration bulletin provide policy information for automatic transmission Oil Cooler Flush and flow...
Read full bulletin
test.
This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the customer has tried...
Read full bulletin
to shift the t-case from 4lo to Hi gears while driving.
This Preliminary Information communication provides information to the technician about being to achieve pre-load when...
Read full bulletin
setting up the pinion bearing pre-loads during reassembly of the 9.5/9.76 inch rear axles. Technician will need to use pinion gear install washer part number 11609638 onto the pinion shaft between the flange and nut. Tighten the pinion nut until you achieve 10 pound inch or 1.0 newton rotating torque. After the torque has been achieved back the nut off and remove the washer. Tighten the nut back down until you achieve 15 pound inch or 1.7 newton meters for used bearings or 20 pound inch 2.25 newton meters for new bearings.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
Greese or Sealant Visible on Steering Gear - Should not be interpreted as Leak
This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear...
Read full bulletin
due to seeing grease or sealant on certain locations on the gear.
No XM Audio, Rear View Camera Issues, Favorite Stations Stored Twice and/or Disappear Condition/Concern No audio on startup in XM.
Read full bulletin
iPhone does not detect if user disconnects iPhone during certification process. When receiving an incoming call through OnStar Hands Free Calling system, the vehicle does not ring. It will show on the screen. FM Timeshift not functioning properly. HD Switching Toggle Setting does not function. Favorites stored Twice or disappear. Noise is played during the TimeShift recoding. A/C Mode icon is displayed when vehicle is not equipped with A/C. The folder track is not played when the folder is pressed for a long time. Missing Forward Collision Warning Chime on vehicles base audio system, Forward Collision Alert and/or Adaptive Cruise. Long press of the knob when highlighting a browse folder, sometime changes the media source from SD card to USB and when user releases the push knob, it brings the Media Menu back instead of showing the now playing screen for USB and SD card. The USB only works with Apple products (iPhone). Rear View Camera Issues: When shifting from Drive to Reverse is less than 3 seconds, the display will not transition to the rear view camera screen. When shifting from Drive to Reverse is more than 3 seconds, the display may be blank and will not show the rear view camera message Check Surrounding for Safety.
No XM Audio, Rear View Camera Issues, Favorite Stations Stored Twice and/or Disappear Condition/Concern No audio on startup in XM.
Read full bulletin
iPhone does not detect if user disconnects iPhone during certification process. When receiving an incoming call through OnStar Hands Free Calling system, the vehicle does not ring. It will show on the screen. FM Timeshift not functioning properly. HD Switching Toggle Setting does not function. Favorites stored Twice or disappear. Noise is played during the TimeShift recoding. A/C Mode icon is displayed when vehicle is not equipped with A/C. The folder track is not played when the folder is pressed for a long time. Missing Forward Collision Warning Chime on vehicles base audio system, Forward Collision Alert and/or Adaptive Cruise. Long press of the knob when highlighting a browse folder, sometime changes the media source from SD card to USB and when user releases the push knob, it brings the Media Menu back instead of showing the now playing screen for USB and SD card. The USB only works with Apple products (iPhone). Rear view camera issues.
Grease or sealant visible on steering gear - should not be interpreted as leak.
Read full bulletin
Some customers or technicians may comment on seeing grease or sealant on certain locations of the steering gear. The illustrations below include arrows showing the areas on the steering gear that the supplier intentionally applies sealing grease. Any of these locations have the potential of showing visible grease under normal operation.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This Preliminary Information communication provides information to the technician about vehicles that may have a delayed...
Read full bulletin
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 technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This technical bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering...
Read full bulletin
gear due to seeing grease or sealant on certain locations on the gear.
This technical bulletin provides a procedure to replace the torque converter and inspect the front pump and the TEHCM...
Read full bulletin
for metal.
This preliminary informational bulletin adds the 2016 model year to diagnostic tips and repair information to correct a...
Read full bulletin
customer concern of reduced acceleration at low speed and/or transmission slipping from a launch, DTC P0751 set.
This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.
Brakes
34 bulletinsThis service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and...
Read full bulletin
strut due to fluid leak.
This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and...
Read full bulletin
strut due to fluid leak.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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 service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive...
Read full bulletin
disk on gasket sealing surfaces or reused parts.
This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.
Installation Of An Aftermarket Trailer Brake Controller In Lieu Of Factory Trailer Brake Controller.
Installation Of An Aftermarket Trailer Brake Controller In Lieu Of Factory Trailer Brake Controller.
Adding Integrated Trailer Brake Controller RPO JL1.
Adding Integrated Trailer Brake Controller RPO JL1.
Interim Aftermarket Trailer Brake Controller Harness.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
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 service bulletin advises about the possible issues that may occur when using a scotch brite pad or highly abrasive...
Read full bulletin
disk on gasket sealing surfaces or reused parts.
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
Read full bulletin
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...
Read full bulletin
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 cleaning brake dust off of aluminum or chrome wheels.
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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 provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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 the location of the GM Accessory Performance Brake System Rotor Specifications
This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and...
Read full bulletin
strut due to fluid leak.
This technical bulletin provides repair information to correct a customer concern of pulsing, grinding, scraping noise...
Read full bulletin
from brakes, uneven front brake pad wear.
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair...
Read full bulletin
vehicles that may have an intermittent "Check Trailer Wiring" or "Service Trailer Brake" message on the Driver Information Center. Technician will inspect and clean the ground wire (normally white wire) connection on the trailer side of the 7-pin connector. Inspect that the wires inside the trailer side connector are clean and securely fastened. If the vehicle?s 7-way connector socket terminals are deformed or have excessive wear, it will be necessary to replace the truck side connector with part number 23404450.
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
Read full bulletin
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...
Read full bulletin
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 the location of the GM Accessory Performance Brake System Rotor Specifications
This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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 provides information to the technician on how to diagnose and repair vehicle...
Read full bulletin
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 informational bulletin advises about the possible issues that may occur when using a scotch brite pad or highly...
Read full bulletin
abrasive disk on gasket sealing surfaces or reused parts.
This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need...
Read full bulletin
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 about vehicle with Service ABS and/or...
Read full bulletin
Traction control lights/message on, Service Power Steering System, Service Suspension System, and or Loss of communication with EBCM, SWPS, PSCM, and/or SCM. Technician may find Diagnostic Trouble Codes U0077, U0121, U0126, U0131, U0139, U0401, U0415, and/or U0428. Technician should remove the driver and passenger sill plate to gain access to the wire harness. If any open, damaged, or corroded wires should be repaired.
This technical bulletin provides repair information to correct a customer concern of pulsing, grinding, scraping noise...
Read full bulletin
from brakes, uneven front brake pad wear.
This technical bulletin provides repair information to correct a customer concern of pulsing, grinding, scraping noise...
Read full bulletin
from brakes, uneven front brake pad wear.
Infotainment
29 bulletinsRadio Inoperative with No Communication and DTC U0184
Radio Back Lighting Stays On After Key Off.
Radio Does Not Display The Correct Song When Listening To An Ipod.
XM Audio Traffic And Travel Link Availability And Operation.
Infotainment System Will Not Return to Media After Bluetooth Call Ends
Base Radio Lock Up
Navigation Voice Prompts Choppy Distorted or Garbled.
Touch Screen Inoperative / No Audio.
Touch Screen Inoperative / No Audio.
Touch Screen Inoperative / No Audio.
Call Screen Is Still Displayed After Ending A Bluetooth Call
Navigation Radio, Radio, Amplifier, Human Machine Interface.
Information On Requests To Add OnStar Bluetooth Option.
?Peek In? Odometer Display Incorrect
?Peek In? Odometer Display Incorrect
CSP-Forward Collision Alert System Audible Warning Inoperative - mEquipped with forward collision alert system and base...
Read full bulletin
audio (UQ3/UQ5)
Radio Touchscreen Inaccurate or Difficult To Use.
No Audio Except Chime Distorted Or Inoperative Rear Camera -No Audio- Displayed On Audio Page In DIC.
No Audio Except Chime Distorted Or Inoperative Rear Camera -No Audio- Displayed On Audio Page In DIC.
No Audio Except Chime Distorted Or Inoperative Rear Camera -No Audio- Displayed On Audio Page In DIC.
Favorites List Preventing Access to Some Radio Display Functions.
Pandora Audio Lost After a Bluetooth Call Ends.
Possible Blank Radio Display.
Navigation Radio, Radio, Amplifier, Human Machine Interface.
This Preliminary Information communicates diagnostic tips for a condition of No GPS location on Radio.
This technical bulletin provides repair information to correct a customer concern of Loss of Radio Audio Shortly After...
Read full bulletin
an OnStar In-Vehicle Voice Message Is Heard.
This Preliminary information communicates repair information for therear vision camera or surround vision camera image...
Read full bulletin
being: - Yellow - Blurry -Distorted - Image scrolling - Image with NO gridlines - Screen is blue with gridlines - Screen is blue with Service Rear Vision System message
This Preliminary information communicates and issue with the hood ajar message being displayed when the hood is not ajar.
Read full bulletin
Inspect the body ground strap to insure it is connected in the proper locations and the strap eyelets are tight and do not rotate.
This technical bulletin provides repair information to correct a customer concern of Audio Muting When Listening to Some...
Read full bulletin
SiriusXM Channels Due to Interference in Some Geographic Locations.
Lighting
23 bulletinsThis preliminary information communicates an issue with aftermarket LED headlights causing IPC warning messages and MIL...
Read full bulletin
along with several low speed lan DTCs.
This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance...
Read full bulletin
Schedules.
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed...
Read full bulletin
Accessories.
This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in...
Read full bulletin
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.
SES Lamp P0300 P0351 - P0358.
SES Lamp P0300 P0351 - P0358.
Lifter Noise Or SES Light With A P0300 Set.
Lifter Noise Or SES Light With A P0300 Set.
Lifter Noise Or SES Light With A P0300 Set.
This Preliminary information communicates to dealers of a known issue with failed map update
This informational bulletin provides information for dealers/technicians on Headlamp, Tail Lamp, License Lamp or...
Read full bulletin
Fog/Driving Lamp Damage.
This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed...
Read full bulletin
Accessories.
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
Read full bulletin
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...
Read full bulletin
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 Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
Read full bulletin
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 GM Canada New Vehicle Tire Warranty Program for Original Equipment (OE)...
Read full bulletin
Tires and PDI installed Limited Production Option (LPO) Tires.
This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
Read full bulletin
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 Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
Read full bulletin
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 Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities.
Read full bulletin
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 informational bulletin explains Unscheduled Supplemental Services (including Flushing Services and Additives) and...
Read full bulletin
the Proper use of GM Simplified Maintenance Schedules.
This informational bulletin provides information for dealers/technicians on Exterior Lamp Condensation and Replacement...
Read full bulletin
Guidelines.
This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in...
Read full bulletin
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 Preliminary Information communicates to techniciansthat the Daytime Running Lamps (DRL's) or the auto headlamps...
Read full bulletin
will not shut off when using the daytime running lamp disable switch (Which is part of the headlamp switch), if the vehicles was built for Canada (RPO Z49). These vehicles were built with different software that doesn't allow the DRL's or Auto headlamp to be shut off. Canada law prohibits disabling daytime running lamps (DRL's) or auto headlamps.
Tires & Wheels
20 bulletinsThis service bulletin provides information on Tire Sidewall Irregularities.
This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
Refinishing Aluminum Wheels
Diagnostic Tips for Difficult to Resolve Tire/Wheel Vibration Concerns
Refinishing Aluminum Wheels
Proper Wheel Installation and Wheel Torque Techniques
Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip
Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip
This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all...
Read full bulletin
repairs requiring balance and Road Force measurement.
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are...
Read full bulletin
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...
Read full bulletin
repairs requiring balance and Road Force measurement.
This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are...
Read full bulletin
Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).
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...
Read full bulletin
ride characteristics of GM cars and trucks.
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...
Read full bulletin
ride characteristics of GM cars and trucks.
This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance,...
Read full bulletin
Shake, Flat Spotting) of GM Original Equipment Tires.
This informational bulletin provides information for dealers/technicians on Use of Nitrogen Gas in Tires.
This Preliminary Information communication provides information to the technician about removing the tinnerman push nuts...
Read full bulletin
when installing the accessory Accessory 22" Wheels Regular Production Option Code (SES, SEU, SEY, OR SEZ) or production 22" wheels Regular Production Option Code (RPT or SMI) also during any service requiring wheel removal.
This informational bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).
HVAC & Climate
14 bulletinsThis service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold...
Read full bulletin
weather climates and testing those batteries.
This Preliminary Information communication advises the technician that some vehicles may have a dim Driver Information...
Read full bulletin
Center when the interior of the vehicle is hot from a sun load or extended heater operation. The Driver Information Center is designed to dim with high temperature exposure. This is done to protect the Driver Information Center from damage.
This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
Air Conditioning Odor
Unwanted A/C Compressor Operation After Being Turn Off (Normal Operation.
A/C Blows Warm Or Poor Performance.
Air Conditioning Odor
Operational Characteristics Of The HVAC System And Heated/Cooled Seats During Remote Start.
Possible Blank Radio Display And/Or DTC U150F Stored in the Radio/HVAC Controls
Unable To Manually Adjust Blower Speed Lower When In Defrost.
Read full bulletin
Mode
This service bulletin provides information to dealership personnel on a new refrigerant (R1234yf) for A/C service.
This technical bulletin provides a procedure to replace the dehydrator to correct the condition of A/C Inoperative...
Read full bulletin
and/or Insufficient Cooling due to the seals going bad within the part.
This technical bulletin provides a procedure to replace the dehydrator to correct the condition of A/C Inoperative...
Read full bulletin
and/or Insufficient Cooling due to the seals going bad within the part.
This Preliminary Information communication advises the technician that some vehicles may have a dim Driver Information...
Read full bulletin
Center when the interior of the vehicle is hot from a sun load or extended heater operation. The Driver Information Center is designed to dim with high temperature exposure. This is done to protect the Driver Information Center from damage.
Software & Calibration
9 bulletinsVehicle Software Enhancements
Outside Temperature Will Not Update.
Outside Temperature Will Not Update.
Recent information and updates for Enable and Empower Project
This service bulletin provides technicians with updated information to help identify the differences between what is...
Read full bulletin
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...
Read full bulletin
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...
Read full bulletin
considered a fluid leak, and what is considered fluid seepage.
OnStar Voice Fallback Number Update
This service bulletin provides technicians with updated information to help identify the differences between what is...
Read full bulletin
considered a fluid leak, and what is considered fluid seepage.
Steering
8 bulletinsThis service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or...
Read full bulletin
fluid leak concern that is caused during extremely low temperatures.
Inner Tie Rod Torque
Steering Column Grind Pop Bind Noise And/Or Feeling When Turning
Service Update for Inventory and Cust omer Vehicles Loss of Power Steering Assist at Extreme Hot and Cold fUnderhood...
Read full bulletin
Temperatures Expires with Base Warranty
Inner Tie Rod Torque
This service bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise or...
Read full bulletin
fluid leak concern that is caused during extremely low temperatures.
This technical bulletin provides a procedure to eliminate a power steering noise due to extremely low temperatures.
This technical bulletin provides a procedure to flush and bleed power steering system to correct a power steering noise...
Read full bulletin
or fluid leak concern that is caused during extremely low temperatures.
Air Bags & Safety
8 bulletinsThis service bulletin provides information on regular inspection of the Seat Belt Lap Anchor.
This service bulletin provides information on Takata Air Bag Courtesy Transportation Reimbursement Program - Applicable...
Read full bulletin
to GM Recalls listed in bulletin.
This service bulletin provides information on Takata Air Bag Completion Rate Improvement Program - Applicable to GM...
Read full bulletin
Recalls 14491, 14735,15040, 15041, 15043,15044, 15045, 15046, 15406,15438, 15442, 15815, 15816,15817, 15818, 15826, 17009, 17476, 17477, 28810, 28811,17478, 18015, N192273760, N192278940, N212328760, N212328770, N212328780, N212328790, N212328800, N242437050, N242437060, N242437070.
Seat Belt Extender Availability
Seat Mounted Side Impact Airbag Connector
Seat Belt Extender Availability
This service bulletin provides information on availability for a seat belt extender.
Special Coverage - If a driver repeatedly sits on the seat belt cable cover located at the base of the driver?s seat...
Read full bulletin
when entering the vehicle, it may cause the seat belt pretensioner to bend sharply over the seat side shield. If this continues to occur over an extended period of time, which is very rare, the seat belt pretensioner cable may fatigue and eventually separate, which could reduce the effectiveness of the vehicle?s seat belts. Before any damage occurs to the pretensioner cable itself, signs of wear will be visible on the pretensioner cable cover where it has been repeatedly bent over the seat side shield. Dealers are to replace the pretensioner and side shield for all customers that experience a broken pretensioner cable or come to a dealership with excessive wear on the cable sleeve. The repairs will be made at no charge to the customer.
Suspension
8 bulletinsThis Preliminary Information communication provides information to the technician with the steps to diagnosis and repair...
Read full bulletin
vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.
Clunking Noise from Front of Vehicle During Turns and/or Bumps Some customers may comment on a clunking noise...
Read full bulletin
originating from the front of the vehicle that is more predominant during turns or traveling over bumps. This may be caused by a damaged stabilizer shaft frame bracket. There have been some cases in which the bracket is cracked, as shown. This condition has been found to be the result of insufficient welds between the bracket and frame rail. There have been some cases on older vehicles of corrosion affecting the bracket
This Preliminary Information communication provides information to the technician with the steps to diagnosis and repair...
Read full bulletin
vehicles with various handling, vehicle dynamics concerns, noises from the suspension or underbody, or issues related to damaged suspension components. Before any in-depth diagnostics are performed, be aware that various issues could occur if the vehicle has been modified and inform the customer the conditions noted may not be covered under warranty. Technician will inspect for installed aftermarket suspension components. Also inspect for improperly adjusted torsion bars.
This technical bulletin provides a procedure to apply grease to the leaf springs to correct a condition of a squeak...
Read full bulletin
noise from the metals making contact.
This technical bulletin provides a procedure to check and repair the rear shackle and/or add lube to the leaf springs to...
Read full bulletin
correct the noise.
This technical bulletin provides a procedure for re-torque the lead springs.
This technical bulletin provides a procedure to apply grease to the leaf springs to correct a condition of a squeak...
Read full bulletin
noise from the metals making contact.
This Preliminary Information communication provides information to the technician on the steps to help diagnose and...
Read full bulletin
repair vehicles with a rattle, squeak, clunk, thump, or bump. If published Service Information diagnostics do not lead to a repair for the concern. Technician should inspect the opposite side shock/strut for the cause of the concern.
Hybrid & EV
7 bulletinsThis service bulletin provides information on AGM batteries that require less frequent charging in storage.
Service Charging System Message Or Low Volt Gauge Reading After Cold Start.
Service Charging System Message Or Low Volt Gauge Reading After Cold Start
Service Charging System Message Or Low Volt Gauge Reading After Cold Start.
Service Charging System Message Or Low Volt Gauge Reading After Cold Start
This service bulletin provides information on AGM batteries that require less frequent charging in storage.
This Preliminary information communicates an issue with aftermarket USB chargers causing SIR DTC's to set.