Buick Enclave Service Bulletins

1,126 manufacturer communications on file.

• December 23, 2025•Document ID: 11026861

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393H

  Date Added:

  December 29, 2025

  Manufacturer:

  GMC

  Summary

  "This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules."

  Associated Products (34)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 14 more
  Associated Documents

  • DownloadMC-11026861-0001.pdf↗
• December 19, 2025•Document ID: 11026727

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6445B

  Date Added:

  December 22, 2025

  Manufacturer:

  CADILLAC

  Summary

  This PI communicates information that the Collision / Detection Systems will revert to default setting of Alert and Brake after an Ignition Cycle due to an Engineering change.

  Associated Products (20)

  2026 Buick Enclave2026 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 SUV2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11026727-0001.pdf↗
• December 12, 2025•Document ID: 11026600

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6457A

  Date Added:

  December 15, 2025

  Manufacturer:

  GMC

  Summary

  This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.

  Associated Products (136)

  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+ 116 more
  Associated Documents

  • DownloadMC-11026600-0001.pdf↗
• December 12, 2025•Document ID: 11026599

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629B

  Date Added:

  December 15, 2025

  Manufacturer:

  GMC

  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-11026599-0001.pdf↗
• December 11, 2025•Document ID: 11026604

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6345A

  Date Added:

  December 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that a vehicle may be encountered with an SES light on and code P059F and P05AE DTCs Set in Snowy or Icing Conditions. The technician is instructed that If no issue is found after completing the diagnostics in SI for both DTCs, do not replace the shutter assembly. Engineering is currently investigating.

  Associated Products (5)

  2025 Buick Enclave2025 Chevrolet Traverse2025 GMC Acadia2024 Chevrolet Traverse2024 GMC Acadia
  Associated Documents

  • DownloadMC-11026604-0001.pdf↗
• December 5, 2025•Document ID: 11026496

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393G

  Date Added:

  December 8, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.

  Associated Products (34)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 14 more
  Associated Documents

  • DownloadMC-11026496-0001.pdf↗
• December 4, 2025•Document ID: 11026491

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6458

  Date Added:

  December 8, 2025

  Manufacturer:

  GMC

  Summary

  A vehicle may come in with a dead battery. Tech is instructed to inspect the window switch 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-11026491-0001.pdf↗
• December 3, 2025•Document ID: 11026842

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250552

  Date Added:

  December 24, 2025

  Manufacturer:

  CHEVROLET

  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 (62)

  2026 Buick Encore2026 Buick Encore GX2025 Buick Encore2025 Buick Encore GX2025 Buick Envista2025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Malibu2025 Chevrolet Trailblazer2025 Chevrolet Trax2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envista2024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Equinox+ 42 more
  Associated Documents

  • DownloadMC-11026842-0001.pdf↗
• November 25, 2025•Document ID: 11026062

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6457

  Date Added:

  December 3, 2025

  Manufacturer:

  CADILLAC

  Summary

  This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.

  Associated Products (136)

  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+ 116 more
  Associated Documents

  • DownloadMC-11026062-0001.pdf↗
• November 24, 2025•Document ID: 11026067

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456

  Date Added:

  December 3, 2025

  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 (38)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 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 Tahoe2025 Chevrolet Traverse2025 GMC Acadia+ 18 more
  Associated Documents

  • DownloadMC-11026067-0001.pdf↗
• November 20, 2025•Document ID: 11025755

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5214G

  Date Added:

  November 28, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have had multiple 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.

  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-11025755-0001.pdf↗
• November 19, 2025•Document ID: 11025909

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  654.10

  Date Added:

  December 2, 2025

  Manufacturer:

  CHEVROLET

  Summary

  Fixes to help prevent loss of functionality for OnStar, infotainment apps, and connectivity features. 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.

  Associated Products (10)

  2025 Buick Enclave2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Equinox2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Terrain2024 Cadillac XT42024 Chevrolet Traverse2024 GMC Acadia
  Associated Documents

  • DownloadMC-11025909-0001.pdf↗
• November 13, 2025•Document ID: 11025582

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6627B

  Date Added:

  November 17, 2025

  Manufacturer:

  GMC

  Summary

  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. This will be fixed in a future software update.

  Associated Products (5)

  2026 Buick Enclave2026 Chevrolet Traverse2026 GMC Acadia2025 Chevrolet Colorado2025 GMC Canyon
  Associated Documents

  • DownloadMC-11025582-0001.pdf↗
• November 13, 2025•Document ID: 11025574

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629A

  Date Added:

  November 17, 2025

  Manufacturer:

  GMC

  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-11025574-0001.pdf↗
• November 11, 2025•Document ID: 11025572

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629

  Date Added:

  November 17, 2025

  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 (77)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 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 Pickup2026 GMC Hummer EV SUV+ 57 more
  Associated Documents

  • DownloadMC-11025572-0001.pdf↗
• November 7, 2025•Document ID: 11025974

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; WHEELS

  Mfr Comm. #:

  24-NA-166

  Date Added:

  December 2, 2025

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of DTC C1171 C1172 C1173 C1174 Tire Pressure Monitor Sensor Unable to Relearn Ethernet Cable Overlay for TCP OnStar Module.

  Associated Products (8)

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

  • DownloadMC-11025974-0001.pdf↗
• November 7, 2025•Document ID: 11025463

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6218C

  Date Added:

  November 10, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that a vehicle may be encountered with an SES light on and code P059F set. The technician is instructed to inspect the bracket in front of the grill shutter for being bent before replacing the shutter.

  Associated Products (8)

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

  • DownloadMC-11025463-0001.pdf↗
• October 23, 2025•Document ID: 11024704

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393F

  Date Added:

  November 2, 2025

  Manufacturer:

  GMC

  Summary

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

  Associated Products (34)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 14 more
  Associated Documents

  • DownloadMC-11024704-0001.pdf↗
• October 18, 2025•Document ID: 11024460

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425B

  Date Added:

  October 24, 2025

  Manufacturer:

  CHEVROLET

  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-11024460-0001.pdf↗
• October 17, 2025•Document ID: 11024455

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425A

  Date Added:

  October 24, 2025

  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-11024455-0001.pdf↗