2026 Buick Enclave TSBs
157 Technical Service Bulletins across 13 categories
Categories
Electrical
37 bulletinsIf a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing...
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the Image processing module.
If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing...
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the Image processing module.
Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state.
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Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state.
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Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
A vehicle may have a service all wheel drive message.
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Tech is given direction to either reset the module or order a new module with instructions for a part restriction.
A vehicle may have a service all wheel drive message.
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Tech is given direction to either reset the module or order a new module with instructions for a part restriction.
Certain vehicles, may have a condition in which the Telematic Control Module may enter an unrecoverable state.
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Dealers are to reprogram the Telematic Control Module. Important: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
A vehicle may have a service all wheel drive message.
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Tech is given direction to either reset the module or order a new module with instructions for a part restriction.
This preliminary information is for technicians that will have this message after USB updating the radio.
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The repair should not involve replacing a module as pressing the reset button will correct this issue.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC'ss
A vehicle may come in with a dead battery.
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Tech is instructed to inspect the window switches for coins.
This P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions.
This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an...
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event like a lightning strike, battery jump started backwards, failure over the air update, etc.
This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a TCM data...
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pull.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
"This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
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It also informs them to follow the bulletins as necessary to USB update the modules."
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
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It also informs them to follow the bulletins as necessary to USB update the modules.
A vehicle may come in with a dead battery.
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Tech is instructed to inspect the window switch for coins.
This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire...
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Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no...
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DTC's
The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history...
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- U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.
If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing...
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the Image processing module.
This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not...
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correct it.
This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history...
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- U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.
This Preliminary information communicates the active safety features and/or cameras are inoperative or unavailable after...
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a 12 volt battery replacement or battery charge after a low voltage condition.
This Preliminary Information communication provides information to the technician about vehicles that have an...
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intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
This preliminary information is for technicians that will have this message after USB updating the radio.
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The repair should not involve replacing a module as pressing the reset button will correct this issue.
This information provides software update information for the K73 Telematics module to correct the symptoms described.
This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use...
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for certain repairs, such as Wiring Harness Repairs.
Engine
35 bulletinsThis Preliminary information communicates a potential chirp noise coming from the engine compartment.
This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener.
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Engineering is working on a new module.
A dealer is advised to perform no repairs if U3000 SYM 92 is found.
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Engineering is working on a resolution
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener.
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Engineering is working on a new module.
Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet.
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This special coverage covers the condition described above for a period of 5 years or 60,000 miles (100,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after July 14, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to July 14, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to remove the inlet hose and replace the seal. The repairs will be made at no charge to the customer.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
Fog lamp control may be missing from radio display after a BCM update.
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Engineering is investigating.
A dealer is advised to perform no repairs if U3000 SYM 92 is found.
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Engineering is working on a resolution
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications.
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Engineering is investigating and this PI will be converted to a bulletin when a repair is available.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters.
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The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician to replace all of the lash adjusters and rocker arms in the entire engine if any soft lash adjusters are found.
This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on...
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part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.
This Preliminary information communicates an issue with 8T65 / LK0 with an Engine stall after remote start or warm up in...
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cold Ambient temperature
Fixes to help ensure proper functionality for heating and cooling features.
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Improvements to night mode lights for shifting gears. Fixes for Daytime Running Lamps turning on when set to Off. Fixes to help prevent erroneous missing key messages on driver display. Fixes for accuracy of low tire pressure alert. Fixes for speed threshold for pedestrian alerts. Fixes to help ensure proper functionality for shifting. Fixes to help protect transmission health. Improvements to diagnostics to prevent vehicle not starting. Fixes to help reduce instances of check engine light activation in cold weather.
Certain vehicles listed above, may have a condition where coolant leaks from the radiator hose quick connect at the radiator inlet.
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This special coverage covers the condition described above for a period of 5 years or 60,000 miles (100,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after April 1, 2026, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to April 1, 2026, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (Customers) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customers right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to remove the inlet hose and replace the seal. The repairs will be made at no charge to the customer.
This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener.
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Engineering is working on a new module.
A vehicle may have a service all wheel drive message.
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Tech is directed to clear code and advise customer that engineering is investigating.
Service Update. Certain vehicles listed above may have contamination inside the high-pressure fuel pump spill valve assembly.
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Dealers will replace the high pressure fuel pump.
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft hydraulic valve lash adjusters.
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The soft lash adjuster concern is due to debris from the valve rocker arm, entering into the lash adjuster. The document instructs the technician to replace all of the lash adjusters and rocker arms in the entire engine if any soft lash adjusters are found.
Service Update. Certain vehicles listed above may have a condition in which a quality issue with the engine was identified.
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Dealers will replace the engine.
Service Update. Certain vehicles listed above may have a condition in which a quality issue with the engine was identified.
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Dealers will replace the engine.
This Preliminary information communicates an issue with 8T65 / LK0 with an Engine stall after remote start or warm up in...
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cold Ambient temperature
The document makes technicians aware of a valvetrain tick noise that is created by one or more soft lifters.
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The soft lifter concern is due to manufacturing debris within the lifter when it was manufactured. The document instructs the technician to replace the soft lifter(s) and the rocker arm it operates.
Service Update. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail.
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If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.
A vehicle may have a service all wheel drive message.
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Tech is directed to clear code and advise customer that engineering is investigating.
This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and...
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Brake after an Ignition Cycle due to an Engineering change.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple...
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repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the support of General Motors Technical Assistance Center. If valid vibration frequency or Road Force Variation data has been collected and a repair attempt does not correct the customer complaint, contact General Motors Technical Assistance Center for further support. For any vehicles that remains unrepaired after being at the dealer for three days or more and a related bulletin or PI is not found, contact General Motors Technical Assistance Center for further support.
This Preliminary information communicates a potential chirp noise coming from the engine compartment.
This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener.
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Engineering is working on a new module.
This preliminary information PI states to not replace anything at the dealership for this concern and engineering is...
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investigating.
This preliminary information PI states to not replace anything at the dealership for this concern and engineering is...
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investigating.
This Preliminary information communicates a potential chirp noise coming from the engine compartment.
Other
32 bulletinsThis PI communicates the possibility of dtc U11E2 setting as current or history due to poor connection at Intake Cam...
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Actuator
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with...
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the image processor #2 and how to restore communication
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
This document assists dealer technician's with diagnosing a MIL P0299.
This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM.
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Advises of how to contact PQC to authorize SDGM replacement.
This preliminary information is to inform technicians and customers that the HUD will not retain its current settings.
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No parts should be replaced.
Improvements to the availability of driver assistance features.
Pi created to provide GM dealers with information on gathering information for projection issue
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical...
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Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information is to communicate to technicians that a sequence in programming has changed for these vehicles with this RPO.
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Failure to follow this sequence will result in a reversed, reverse camera image and cannot be corrected once programmed.
This Preliminary information communicates to the field about a normal condition about a message that appears when using...
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a NFC card to start the vehicle when a key fob or a digital key device is not present.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements.
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They should follow the notes mentioned prior to anything being replaced.
New Vehicle Monitoring Programs Section in IVH
Diagnostic Guidance for U3000-97 Long Range Radar Blocked
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera...
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and dealers to replace the camera.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication...
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configuration did not complete correctly.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini...
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50 terminal test probe, replacement terminals, and terminated leads.
Infotainment
24 bulletinsThis Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
Improvements to system responsiveness Improvements to camera image clarity Fixes to prevent blank screens and audio...
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drop-outs Improvements to vehicle software update installation
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super...
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Cruise.
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This Preliminary information communicates to dealers a procedure to reset the radio.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This Preliminary information communicates to dealers a procedure to reset the radio.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back...
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to the vehicle.
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC...
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display
Service Update. Radio Reprogramming.
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Dealer Message.
Service Update. Certain vehicles listed above may not have had the production released software at launch.
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Dealers will reprogram the radio.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and...
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how to reset/clear the message.
Pre-Delivery & Maintenance
9 bulletinsThis PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not...
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present, verify the camera is clean, then contact PQC if no issue is found.
A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete.
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Tech is directed to drive a city route to complete the procedure.
A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete.
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Tech is directed to drive a city route to complete the procedure.
A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete.
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Tech is directed to drive a city route to complete the procedure.
This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may...
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not pass California smog inspection or smog inspection in other states.
This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector...
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Reconnect Labor Code Numbers.
This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance...
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programs.
This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector...
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Reconnect Labor Code Numbers.
The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for...
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causing multiple customer concerns that do not have other diagnostic methods to identify them.
Software & Calibration
7 bulletinsThis preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven.
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When a repair is available, this PI will be updated.
This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost...
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left or right side object detection alerts.
This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost...
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left or right side object detection alerts.
This preliminary information is to inform technicians and customers that GM is aware of this concern and to not replace any parts at this time.
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This will be fixed in a future software update.
This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided.
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When a fix is available, this PI will be updated to a bulletin.
This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided.
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When a fix is available, this PI will be updated to a bulletin.
This preliminary information is to inform technicians and customers that GM is aware of this concern and to not replace any parts at this time.
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This will be fixed in a future software update.
Brakes
3 bulletinsImprovements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking.
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Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features. This update contains a required software change to help improve the overall software update and diagnostics process.
Fixes to keep selected settings for Super Cruise.
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Improvements to the performance of Brake Assist. Fixes to help ensure proper Super Cruise lane change functionality.
This service bulletin provides information for the technicians to use a Customer Concern Verification sheet to...
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facilitate the questions needing to be answered by the customer regarding Automatic Emergency Braking (AEB) issues.
Fuel System
3 bulletinsThis PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and...
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advises of warranty direction.
This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State...
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who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.
This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for...
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analysis.
Lighting
2 bulletinsThis Preliminary information communicates that a vehicle may be encountered with an SES light on and code P059F set.
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The technician is instructed to inspect the bracket in front of the grill shutter for being bent before replacing the shutter.
This Preliminary information communicates that a vehicle may be encountered with an SES light on and code P059F set.
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The technician is instructed to inspect the bracket in front of the grill shutter for being bent before replacing the shutter.
Tires & Wheels
2 bulletinsThis preliminary information communicates information about how to determine if a wheel and tires size change is...
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available.
This service bulletin provides information on Tire Sidewall Irregularities.
Body & Paint
1 bulletinThis Preliminary information communicates an issue with the virtual garage door opener not programming to a garage...
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opener and to replace the opener with a new updated part.
HVAC & Climate
1 bulletinPI to help diagnose A/C concern
Air Bags & Safety
1 bulletinThis Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.