GMC Terrain Service Bulletins (2023)

461 manufacturer communications on file.

• May 11, 2026•Document ID: 11032763

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6551B

  Date Added:

  May 19, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

  Associated Products (232)

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  Associated Documents

  • DownloadMC-11032763-0001.pdf↗
• April 30, 2026•Document ID: 11032560

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540G

  Date Added:

  May 8, 2026

  Manufacturer:

  BUICK

  Summary

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

  Associated Products (152)

  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 BrightDrop+ 132 more
  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 (152)

  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 BrightDrop+ 132 more
  Associated Documents

  • DownloadMC-11032559-0001.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 1, 2026•Document ID: 11030974

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271Q

  Date Added:

  April 7, 2026

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (736)

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  Associated Documents

  • DownloadMC-11030974-0001.pdf↗
• March 27, 2026•Document ID: 11030360

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5992B

  Date Added:

  March 31, 2026

  Manufacturer:

  CHEVROLET

  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 (19)

  2024 Chevrolet Equinox2024 GMC Terrain2023 Cadillac XT42023 Chevrolet Equinox2023 GMC Terrain2022 Cadillac XT42022 Chevrolet Equinox2022 GMC Terrain2021 Cadillac XT42021 Chevrolet Equinox2021 GMC Terrain2020 Cadillac XT42020 Chevrolet Equinox2020 GMC Terrain2019 Cadillac XT42019 Chevrolet Equinox2019 GMC Terrain2018 Chevrolet Equinox2018 GMC Terrain
  Associated Documents

  • DownloadMC-11030360-0001.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.

  Associated Products (47)

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  Associated Documents

  • DownloadMC-11030532-0001.pdf↗
• March 9, 2026•Document ID: 11030092

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6104

  Date Added:

  March 17, 2026

  Manufacturer:

  CHEVROLET

  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.

  Associated Products (736)

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  Associated Documents

  • DownloadMC-11030092-0001.pdf↗
• 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 (736)

  2027 Chevrolet Bolt EV2026 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 Blazer+ 716 more
  Associated Documents

  • DownloadMC-11030091-0001.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:

  CADILLAC

  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 (325)

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  Associated Documents

  • DownloadMC-11029950-0001.pdf↗
• January 29, 2026•Document ID: 11027941

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5812F

  Date Added:

  February 1, 2026

  Manufacturer:

  CHEVROLET

  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 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: 11027830

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252524761

  Date Added:

  January 28, 2026

  Manufacturer:

  GMC

  Summary

  Certain vehicles may set a Malfunction Indicator Light. Additionally, the vehicle may set DTCs P228C, P0089, and/or P006C. Dealers are to reprogram the Engine Control Module.

  Associated Products (2)

  2023 Chevrolet Equinox2023 GMC Terrain
  Associated Documents

  • DownloadMC-11027830-0001.pdf↗
• January 28, 2026•Document ID: 11027829

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252524760

  Date Added:

  January 28, 2026

  Manufacturer:

  GMC

  Summary

  Certain vehicles may set a Malfunction Indicator Light. Additionally, the vehicle may set DTCs P228C, P0089, and/or P006C. Dealers are to reprogram the Engine Control Module.

  Associated Products (2)

  2023 Chevrolet Equinox2023 GMC Terrain
  Associated Documents

  • DownloadMC-11027829-0001.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 (325)

  2027 Chevrolet Bolt EV2026 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 Blazer+ 305 more
  Associated Documents

  • DownloadMC-11027697-0001.pdf↗
• January 14, 2026•Document ID: 11027701

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6098

  Date Added:

  January 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI advised dealer technicians of possible causes of diesel fuel contamination in gasoline powered vehicles and advises of warranty direction.

  Associated Products (279)

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  Associated Documents

  • DownloadMC-11027701-0001.pdf↗
• January 12, 2026•Document ID: 11027688

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6096

  Date Added:

  January 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communicates a change to the PCV ports on camshaft covers.

  Associated Products (8)

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

  • DownloadMC-11027688-0001.pdf↗
• January 12, 2026•Document ID: 11027686

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6457B

  Date Added:

  January 19, 2026

  Manufacturer:

  BUICK

  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 (152)

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  Associated Documents

  • DownloadMC-11027686-0001.pdf↗
• January 8, 2026•Document ID: 11027601

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902U

  Date Added:

  January 13, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (735)

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  Associated Documents

  • DownloadMC-11027601-0001.pdf↗