GMC Terrain Service Bulletins

1,072 manufacturer communications on file.

• March 9, 2026•Document ID: 11030091

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902V

  Date Added:

  March 17, 2026

  Manufacturer:

  BUICK

  Summary

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  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 more
  Associated Documents

  • DownloadMC-11030091-0001.pdf↗
• March 6, 2026•Document ID: 11029962

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393J

  Date Added:

  March 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.

  Associated Products (47)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain2026 GMC Yukon+ 27 more
  Associated Documents

  • DownloadMC-11029962-0001.pdf↗
• March 5, 2026•Document ID: 11029955

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6394E

  Date Added:

  March 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.

  Associated Products (39)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Celestiq2025 Cadillac CT5+ 19 more
  Associated Documents

  • DownloadMC-11029955-0001.pdf↗
• March 5, 2026•Document ID: 11029949

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629C

  Date Added:

  March 11, 2026

  Manufacturer:

  BUICK

  Summary

  This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

  Associated Products (76)

  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+ 56 more
  Associated Documents

  • DownloadMC-11029949-0001.pdf↗
• March 5, 2026•Document ID: 11029901

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  661.10

  Date Added:

  March 7, 2026

  Manufacturer:

  GMC

  Summary

  • Improvements to the performance of vehicle software updates. • Fixes to help prevent loss of functionality for connectivity features, including maps and Wi-Fi. • Fixes to help prevent erroneous emergency calls from vehicle. • Fixes for deleting digital keys. • Fixes to help ensure proper functionality for mobile app features.

  Associated Products (2)

  2026 Chevrolet Equinox2026 GMC Terrain
  Associated Documents

  • DownloadMC-11029901-0001.pdf↗
• March 3, 2026•Document ID: 11029299

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5927D

  Date Added:

  March 3, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the possibility of reduced power with dtc P0237 and/or p0299 due to damaged Charge Air Inlet Pipe connection at Turbocharger.

  Associated Products (8)

  2026 Chevrolet Equinox2026 GMC Terrain2025 Chevrolet Equinox2025 GMC Terrain2024 Chevrolet Equinox2024 GMC Terrain2023 Chevrolet Equinox2023 GMC Terrain
  Associated Documents

  • DownloadMC-11029299-0001.pdf↗
• March 2, 2026•Document ID: 11029950

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425D

  Date Added:

  March 11, 2026

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

  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 more
  Associated Documents

  • DownloadMC-11029950-0001.pdf↗
• February 26, 2026•Document ID: 11029323

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6394D

  Date Added:

  March 3, 2026

  Manufacturer:

  GMC

  Summary

  A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.

  Associated Products (40)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Celestiq2025 Cadillac CT5+ 20 more
  Associated Documents

  • DownloadMC-11029323-0001.pdf↗
• February 20, 2026•Document ID: 11028943

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6458A

  Date Added:

  February 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  A vehicle may come in with a dead battery. Tech is instructed to inspect the window switches for coins.

  Associated Products (20)

  2026 Buick Enclave2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Terrain2025 Buick Enclave2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Terrain2024 Chevrolet Colorado2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Canyon2023 Chevrolet Colorado2023 GMC Canyon
  Associated Documents

  • DownloadMC-11028943-0001.pdf↗
• February 20, 2026•Document ID: 11028942

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456D

  Date Added:

  February 23, 2026

  Manufacturer:

  CADILLAC

  Summary

  This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.

  Associated Products (68)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 48 more
  Associated Documents

  • DownloadMC-11028942-0001.pdf↗
• February 19, 2026•Document ID: 11028909

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N252516900-01

  Date Added:

  February 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.

  Associated Products (23)

  2023 Cadillac XT42022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Equinox2022 GMC Acadia2022 GMC Terrain2021 Buick Envision2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia+ 3 more
  Associated Documents

  • DownloadMC-11028909-0001.pdf↗
• February 17, 2026•Document ID: 11028937

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6394C

  Date Added:

  February 23, 2026

  Manufacturer:

  GMC

  Summary

  A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.

  Associated Products (41)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Celestiq2025 Cadillac CT5+ 21 more
  Associated Documents

  • DownloadMC-11028937-0001.pdf↗
• February 7, 2026•Document ID: 11028702

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6100

  Date Added:

  February 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with 8T45 no shift out of first gear, engineering is investigating.

  Associated Products (4)

  2026 Chevrolet Equinox2026 GMC Terrain2025 Chevrolet Equinox2025 GMC Terrain
  Associated Documents

  • DownloadMC-11028702-0001.pdf↗
• February 5, 2026•Document ID: 11028977

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250552

  Date Added:

  February 24, 2026

  Manufacturer:

  BUICK

  Summary

  Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.

  Associated Products (29)

  2022 Buick Enclave2022 Buick Encore2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Trailblazer2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Terrain2021 Buick Enclave2021 Buick Encore2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT6+ 9 more
  Associated Documents

  • DownloadMC-11028977-0001.pdf↗
• February 5, 2026•Document ID: 11028699

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6482

  Date Added:

  February 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is to communicate to technicians that a sequence in programming has changed for these vehicles with this RPO. Failure to follow this sequence will result in a reversed, reverse camera image and cannot be corrected once programmed.

  Associated Products (13)

  2026 Buick Enclave2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2025 Buick Enclave2025 Chevrolet Equinox2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Terrain2024 Chevrolet Equinox2024 Chevrolet Traverse2024 GMC Acadia
  Associated Documents

  • DownloadMC-11028699-0001.pdf↗
• February 5, 2026•Document ID: 11028382

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N252516900

  Date Added:

  February 5, 2026

  Manufacturer:

  CADILLAC

  Summary

  Emission Recall. Additional VINs moved to Open status.

  Associated Products (23)

  2023 Cadillac XT42022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Equinox2022 GMC Acadia2022 GMC Terrain2021 Buick Envision2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia+ 3 more
  Associated Documents

  • DownloadMC-11028382-0001.pdf↗
• February 3, 2026•Document ID: 11028697

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456C

  Date Added:

  February 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.

  Associated Products (42)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Corvette2025 Chevrolet Equinox+ 22 more
  Associated Documents

  • DownloadMC-11028697-0001.pdf↗
• January 29, 2026•Document ID: 11027941

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5812F

  Date Added:

  February 1, 2026

  Manufacturer:

  GMC

  Summary

  This preliminary information announces the end of an engineering investigation into a brake pad noise.

  Associated Products (6)

  2023 Chevrolet Equinox2023 GMC Terrain2022 Chevrolet Equinox2022 GMC Terrain2021 Chevrolet Equinox2021 GMC Terrain
  Associated Documents

  • DownloadMC-11027941-0001.pdf↗
• January 29, 2026•Document ID: 11027870

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N252516900

  Date Added:

  January 29, 2026

  Manufacturer:

  CADILLAC

  Summary

  Emission Recall. Additional VINs Moved to ‘Open’ Status

  Associated Products (23)

  2023 Cadillac XT42022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Equinox2022 GMC Acadia2022 GMC Terrain2021 Buick Envision2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia+ 3 more
  Associated Documents

  • DownloadMC-11027870-0001.pdf↗
• January 28, 2026•Document ID: 11027940

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6626

  Date Added:

  February 1, 2026

  Manufacturer:

  GMC

  Summary

  PI created to guide technicians through radio restriction process

  Associated Products (24)

  2025 Chevrolet Blazer2025 Chevrolet Malibu2025 Chevrolet Trax2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Trax2024 GMC Terrain2023 Buick Encore GX2023 Chevrolet Blazer2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Terrain2022 Buick Encore GX2022 Chevrolet Blazer2022 Chevrolet Equinox2022 Chevrolet Malibu+ 4 more
  Associated Documents

  • DownloadMC-11027940-0001.pdf↗