GMC Acadia Service Bulletins

1,403 manufacturer communications on file.

• January 30, 2026•Document ID: 11028085

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.50

  Date Added:

  February 3, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improvements to the infotainment system from Android update. This Android update removes Alexa Built-in (if supported). Google Assistant will remain available. • Fixes to improve responsiveness for the center display, driver display, and camera. • Fixes for Apple CarPlay functionality and connectivity (if supported). • Fixes to help ensure proper functionality for Bluetooth. • Improvements to audio system performance.

  Associated Products (3)

  2025 Buick Enclave2025 Chevrolet Traverse2025 GMC Acadia
  Associated Documents

  • DownloadMC-11028085-0001.pdf↗
• January 30, 2026•Document ID: 11028084

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.30

  Date Added:

  February 3, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • 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.

  Associated Products (3)

  2025 Buick Enclave2025 Chevrolet Traverse2025 GMC Acadia
  Associated Documents

  • DownloadMC-11028084-0001.pdf↗
• January 30, 2026•Document ID: 11028083

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.10

  Date Added:

  February 3, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • 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.

  Associated Products (3)

  2026 Buick Enclave2026 Chevrolet Traverse2026 GMC Acadia
  Associated Documents

  • DownloadMC-11028083-0001.pdf↗
• January 30, 2026•Document ID: 11028082

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.20

  Date Added:

  February 3, 2026

  Manufacturer:

  GMC

  Summary

  • Fixes to keep selected settings for Super Cruise. • Improvements to the performance of Brake Assist. • Fixes to help ensure proper Super Cruise lane change functionality.

  Associated Products (3)

  2026 Buick Enclave2026 Chevrolet Traverse2026 GMC Acadia
  Associated Documents

  • DownloadMC-11028082-0001.pdf↗
• January 30, 2026•Document ID: 11028056

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.20

  Date Added:

  February 3, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Fixes to keep selected settings for Super Cruise. • Fixes to driver assistance features, Adaptive Cruise Control, and rearview camera. • Increases Super Cruise availability. • Improvements to the performance of Brake Assist. • Fixes to help ensure proper Super Cruise lane change functionality.

  Associated Products (3)

  2025 Buick Enclave2025 Chevrolet Traverse2025 GMC Acadia
  Associated Documents

  • DownloadMC-11028056-0001.pdf↗
• January 29, 2026•Document ID: 11027945

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6479

  Date Added:

  February 1, 2026

  Manufacturer:

  GMC

  Summary

  A vehicle may have a service all wheel drive message. Tech is directed to clear code and advise customer that engineering is investigating.

  Associated Products (8)

  2026 Buick Enclave2026 Chevrolet Traverse2026 GMC Acadia2025 Buick Enclave2025 Chevrolet Traverse2025 GMC Acadia2024 Chevrolet Traverse2024 GMC Acadia
  Associated Documents

  • DownloadMC-11027945-0001.pdf↗
• January 29, 2026•Document ID: 11027944

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6638A

  Date Added:

  February 1, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the technician the repair direction needed to address an inaccurate speed limit sign displayed on instrument cluster.

  Associated Products (23)

  2026 Cadillac Celestiq2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2025 Cadillac Celestiq2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Optiq2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV+ 3 more
  Associated Documents

  • DownloadMC-11027944-0001.pdf↗
• January 29, 2026•Document ID: 11027925

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456B

  Date Added:

  February 1, 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 (40)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 20 more
  Associated Documents

  • DownloadMC-11027925-0001.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: 11027946

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6638

  Date Added:

  February 1, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the technician the repair direction needed to address an inaccurate speed limit sign displayed on instrument cluster.

  Associated Products (12)

  2026 Cadillac Celestiq2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon
  Associated Documents

  • DownloadMC-11027946-0001.pdf↗
• January 28, 2026•Document ID: 11027940

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6626

  Date Added:

  February 1, 2026

  Manufacturer:

  CHEVROLET

  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↗
• January 28, 2026•Document ID: 11027938

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6099A

  Date Added:

  February 1, 2026

  Manufacturer:

  GMC

  Summary

  This P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions.

  Associated Products (16)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11027938-0001.pdf↗
• January 28, 2026•Document ID: 11027936

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6478

  Date Added:

  February 1, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the field about a normal condition about a message that appears when using a NFC card to start the vehicle when a key fob or a digital key device is not present.

  Associated Products (11)

  2026 Buick Enclave2026 Cadillac Celestiq2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11027936-0001.pdf↗
• January 27, 2026•Document ID: 11027932

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5985K

  Date Added:

  February 1, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.

  Associated Products (85)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision+ 65 more
  Associated Documents

  • DownloadMC-11027932-0001.pdf↗
• January 26, 2026•Document ID: 11027931

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6511C

  Date Added:

  February 1, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a front license plate frame may cause interference with the park assist sensors.

  Associated Products (10)

  2026 Cadillac Lyriq2026 Chevrolet Traverse2026 GMC Acadia2025 Cadillac Lyriq2025 Chevrolet Traverse2025 GMC Acadia2024 Cadillac Lyriq2024 Chevrolet Traverse2024 GMC Acadia2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11027931-0001.pdf↗
• January 20, 2026•Document ID: 11027888

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6099

  Date Added:

  January 30, 2026

  Manufacturer:

  GMC

  Summary

  This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a TCM data pull.

  Associated Products (14)

  2026 Buick Enclave2026 Buick Envision2026 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 XL
  Associated Documents

  • DownloadMC-11027888-0001.pdf↗
• January 16, 2026•Document ID: 11027697

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425C

  Date Added:

  January 19, 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's

  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-11027697-0001.pdf↗
• January 15, 2026•Document ID: 11027702

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6471

  Date Added:

  January 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.

  Associated Products (32)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac Escalade ESV2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse+ 12 more
  Associated Documents

  • DownloadMC-11027702-0001.pdf↗
• January 15, 2026•Document ID: 11027691

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6471

  Date Added:

  January 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.

  Associated Products (32)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 12 more
  Associated Documents

  • DownloadMC-11027691-0001.pdf↗
• January 15, 2026•Document ID: 11027666

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N252516900

  Date Added:

  January 15, 2026

  Manufacturer:

  CADILLAC

  Summary

  Emission Recall. Fuel Pump Power Control Module. Additional VINs Moved to ‘Open’ Status

  Associated Products (23)

  2023 Cadillac XT42022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 GMC Acadia2022 GMC Terrain2021 Buick Envision2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia+ 3 more
  Associated Documents

  • DownloadMC-11027666-0001.pdf↗