Chevrolet Trailblazer Service Bulletins
971 manufacturer communications on file.
- September 26, 2026•Document ID: 11037555Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5698F
- Date Added:
- September 30, 2026
- Manufacturer:
- CHEVROLET
SummaryThis PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
Associated Products (224)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Equinox2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista+ 204 moreAssociated Documents - September 10, 2026•Document ID: 11037320Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6629F
- Date Added:
- September 16, 2026
- Manufacturer:
- CHEVROLET
SummaryThis PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
Associated Products (78)2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Trailblazer2026 Chevrolet Traverse2026 Chevrolet Trax2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup+ 58 moreAssociated Documents - September 4, 2026•Document ID: 11037253Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP4902W
- Date Added:
- September 10, 2026
- Manufacturer:
- GMC
SummaryThis preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
Associated Products (221)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Terrain2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT5+ 201 moreAssociated Documents - September 4, 2026•Document ID: 11037252Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5995B
- Date Added:
- September 10, 2026
- Manufacturer:
- BUICK
SummaryThis Preliminary Information provides the dealer information of the location of the rear seat child anchors.
Associated Products (18)2026 Buick Encore GX2026 Buick Envista2026 Chevrolet Trailblazer2026 Chevrolet Trax2025 Buick Encore GX2025 Buick Envista2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet TrailblazerAssociated Documents - September 1, 2026•Document ID: 11036594Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- N242484750-02
- Date Added:
- September 1, 2026
- Manufacturer:
- BUICK
SummarySpecial Coverage. Certain 2022 model year Buick Encore GX and Chevrolet Trailblazer vehicles, equipped with a 1.2L engine, may have a condition that could cause the turbocharger to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Additionally, a message may be displayed indicating the vehicle’s available engine power is reduced. This special coverage covers the condition described above for a period of 15 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after January 14, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to January 14, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the turbocharger as necessary. The repairs will be made at no charge to the customer.
Associated Products (2)Associated Documents - August 28, 2026•Document ID: 11036693Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6196A
- Date Added:
- September 2, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative.
Associated Products (12)Associated Documents - August 27, 2026•Document ID: 11036690Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6541
- Date Added:
- September 2, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication
Associated Products (113)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Terrain2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT5+ 93 moreAssociated Documents - August 20, 2026•Document ID: 11036392Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6551C
- Date Added:
- August 27, 2026
- Manufacturer:
- BUICK
SummaryThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - August 19, 2026•Document ID: 11036399Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6660
- Date Added:
- August 27, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to the technician the repairs direction for addressing a customer concern of no airflow from dash vents when using air conditioning after an extended drive time.
Associated Products (12)Associated Documents - August 11, 2026•Document ID: 11036214Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6116A
- Date Added:
- August 17, 2026
- Manufacturer:
- CHEVROLET
SummaryThis document assists GM Dealer technician's with diagnosing turbocharger concerns to ensure turbocharger replacement is necessary. The turbocharger part number will be placed on order restriction and the technician will have to contact GM Technical Assistance to verify the turbocharge is at fault and needed. GM Technical Assistance will verify the turbocharger is needed and then order it for the dealer.
Associated Products (12)Associated Documents - July 31, 2026•Document ID: 11035696Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6589B
- Date Added:
- August 4, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to the techicians a diagnostic tip if a customer has a complaint of a whistle/wind noise at highway speeds.
Associated Products (6)Associated Documents - July 28, 2026•Document ID: 11035693Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6110K
- Date Added:
- August 4, 2026
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.
Associated Products (72)2027 Buick Encore GX2027 Chevrolet Trailblazer2026 Buick Encore GX2026 Buick Envision2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac XT52026 Chevrolet Blazer2026 Chevrolet Colorado2026 Chevrolet Express2026 Chevrolet Tahoe2026 Chevrolet Trailblazer2026 GMC Canyon2026 GMC Savana2026 GMC Yukon2026 GMC Yukon XL2025 Buick Encore GX2025 Buick Envision+ 52 moreAssociated Documents - July 23, 2026•Document ID: 11035349Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6548B
- Date Added:
- July 30, 2026
- Manufacturer:
- BUICK
SummaryThis Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature after the front camera was replaced.
Associated Products (18)2026 Buick Encore GX2026 Buick Envista2026 Chevrolet Trailblazer2026 Chevrolet Trax2025 Buick Encore GX2025 Buick Envista2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet TrailblazerAssociated Documents - July 21, 2026•Document ID: 11035340Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5099J
- Date Added:
- July 29, 2026
- Manufacturer:
- CHEVROLET
SummaryPI to help diagnose A/C concern
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - July 17, 2026•Document ID: 11035132Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6120B
- Date Added:
- July 21, 2026
- Manufacturer:
- BUICK
SummaryThis PIP communicates the potential for the engine to stall or stumble when coming out of an auto stop event
Associated Products (2)Associated Documents - June 23, 2026•Document ID: 11034769Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5966F
- Date Added:
- July 7, 2026
- Manufacturer:
- BUICK
SummaryThis Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado+ 190 moreAssociated Documents - June 18, 2026•Document ID: 11034022Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6120A
- Date Added:
- June 22, 2026
- Manufacturer:
- BUICK
SummaryThis PIP communicates the potential for the engine to stall or stumble when coming out of an auto stop event
Associated Products (2)Associated Documents - June 10, 2026•Document ID: 11033998Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6637B
- Date Added:
- June 18, 2026
- Manufacturer:
- BUICK
SummaryThis document is a technical bulletin regarding CarPlay issues in certain Buick and Chevrolet models. It details the problem, cause, and current status of the software anomaly affecting CarPlay connectivity.
Associated Products (12)Associated Documents - June 8, 2026•Document ID: 11033719Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6033B
- Date Added:
- June 8, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to technicians to remove the pulley assembly and inspect the drive chain and pulley surfaces.
Associated Products (22)2027 Buick Encore GX2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 GMC Terrain2026 Buick Encore GX2026 Chevrolet Equinox2026 Chevrolet Trailblazer2026 GMC Terrain2025 Buick Encore GX2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Trailblazer2025 GMC Terrain2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX+ 2 moreAssociated Documents - June 5, 2026•Document ID: 11033725Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6031E
- Date Added:
- June 8, 2026
- Manufacturer:
- GMC
SummaryThis PI addresses leaks from the case half and provides repair direction to dealer technicians
Associated Products (22)2027 Buick Encore GX2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 GMC Terrain2026 Buick Encore GX2026 Chevrolet Equinox2026 Chevrolet Trailblazer2026 GMC Terrain2025 Buick Encore GX2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Trailblazer2025 GMC Terrain2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX+ 2 moreAssociated Documents