GMC Terrain Service Bulletins

1,072 manufacturer communications on file.

• April 30, 2026•Document ID: 11032560

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540G

  Date Added:

  May 8, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to dealers a procedure to reset the radio.

  Associated Products (136)

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  Associated Documents

  • DownloadMC-11032560-0001.pdf↗
• April 30, 2026•Document ID: 11032559

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540G

  Date Added:

  May 8, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealers a procedure to reset the radio.

  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-11032559-0001.pdf↗
• April 28, 2026•Document ID: 11032554

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393K

  Date Added:

  May 8, 2026

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (45)

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  Associated Documents

  • DownloadMC-11032554-0001.pdf↗
• April 23, 2026•Document ID: 11031745

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629D

  Date Added:

  April 30, 2026

  Manufacturer:

  CHEVROLET

  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)

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  Associated Documents

  • DownloadMC-11031745-0001.pdf↗
• April 16, 2026•Document ID: 11031366

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N262547330

  Date Added:

  April 17, 2026

  Manufacturer:

  BUICK

  Summary

  Certain vehicles, may have a condition in which the Telematic Control Module may enter an unrecoverable state. 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.

  Associated Products (21)

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  Associated Documents

  • DownloadMC-11031366-0001.pdf↗
• April 14, 2026•Document ID: 11031789

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  661.20

  Date Added:

  April 30, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improvements to the availability of driver assistance features. • This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates.

  Associated Products (2)

  2025 Chevrolet Equinox2025 GMC Terrain
  Associated Documents

  • DownloadMC-11031789-0001.pdf↗
• April 14, 2026•Document ID: 11031788

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  661.20

  Date Added:

  April 30, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. • Improves traction and stability control when accelerating or on uneven terrain. • Improves braking and stopping performance on low-traction surfaces. • Improves the performance of assisted braking features.

  Associated Products (2)

  2026 Chevrolet Equinox2026 GMC Terrain
  Associated Documents

  • DownloadMC-11031788-0001.pdf↗
• April 14, 2026•Document ID: 11031514

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6503

  Date Added:

  April 23, 2026

  Manufacturer:

  BUICK

  Summary

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on 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.

  Associated Products (101)

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  Associated Documents

  • DownloadMC-11031514-0001.pdf↗
• April 9, 2026•Document ID: 11031287

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6627C

  Date Added:

  April 14, 2026

  Manufacturer:

  CADILLAC

  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 (10)

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  Associated Documents

  • DownloadMC-11031287-0001.pdf↗
• April 8, 2026•Document ID: 11031282

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5812G

  Date Added:

  April 14, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (12)

  2026 Chevrolet Equinox2026 GMC Terrain2025 Chevrolet Equinox2025 GMC Terrain2024 Chevrolet Equinox2024 GMC Terrain2023 Chevrolet Equinox2023 GMC Terrain2022 Chevrolet Equinox2022 GMC Terrain2021 Chevrolet Equinox2021 GMC Terrain
  Associated Documents

  • DownloadMC-11031282-0001.pdf↗
• April 8, 2026•Document ID: 11031277

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6109

  Date Added:

  April 13, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates the possibility of MIL with DTC set of U060F, U1346, and/or P0102.

  Associated Products (2)

  2026 Chevrolet Equinox2026 GMC Terrain
  Associated Documents

  • DownloadMC-11031277-0001.pdf↗
• April 1, 2026•Document ID: 11030974

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271Q

  Date Added:

  April 7, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates information about how to determine if a wheel and tires size change is available.

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  Associated Documents

  • DownloadMC-11030974-0001.pdf↗
• March 27, 2026•Document ID: 11030361

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368C

  Date Added:

  March 31, 2026

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.

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  Associated Documents

  • DownloadMC-11030361-0001.pdf↗
• March 27, 2026•Document ID: 11030360

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5992B

  Date Added:

  March 31, 2026

  Manufacturer:

  GMC

  Summary

  This preliminary information discusses a condition that may arise from the drivers window switch sending an errant message causing the vehicle to enter manual fob learn mode.

  Associated Products (11)

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  Associated Documents

  • DownloadMC-11030360-0001.pdf↗
• March 27, 2026•Document ID: 11030358

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6106

  Date Added:

  March 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the potential for coolant leak areas on LSD engines.

  Associated Products (2)

  2026 Chevrolet Equinox2026 GMC Terrain
  Associated Documents

  • DownloadMC-11030358-0001.pdf↗
• March 21, 2026•Document ID: 11030532

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250552

  Date Added:

  April 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Improvements to OnStar functionality.

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  Associated Documents

  • DownloadMC-11030532-0001.pdf↗
• March 17, 2026•Document ID: 11030527

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  661.10

  Date Added:

  April 2, 2026

  Manufacturer:

  CHEVROLET

  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)

  2025 Chevrolet Equinox2025 GMC Terrain
  Associated Documents

  • DownloadMC-11030527-0001.pdf↗
• March 17, 2026•Document ID: 11030201

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6413A

  Date Added:

  March 24, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is for technicians that will have this message after USB updating the radio. The repair should not involve replacing a module as pressing the reset button will correct this issue.

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  Associated Documents

  • DownloadMC-11030201-0001.pdf↗
• March 9, 2026•Document ID: 11030465

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  18.50

  Date Added:

  April 1, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Great News! Your vehicle keeps getting better. This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. 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 (2)

  2026 Chevrolet Equinox2026 GMC Terrain
  Associated Documents

  • DownloadMC-11030465-0001.pdf↗
• March 9, 2026•Document ID: 11030092

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6104

  Date Added:

  March 17, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

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  Associated Documents

  • DownloadMC-11030092-0001.pdf↗