GMC Sierra Service Bulletins (2024)

1,448 manufacturer communications on file.

• September 10, 2026•Document ID: 11037320

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629F

  Date Added:

  September 16, 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 (95)

  2027 Chevrolet Bolt EV2026 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 Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Trailblazer2026 Chevrolet Traverse+ 75 more
  Associated Documents

  • DownloadMC-11037320-0001.pdf↗
• September 4, 2026•Document ID: 11037253

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902W

  Date Added:

  September 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (751)

  2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Terrain2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista+ 731 more
  Associated Documents

  • DownloadMC-11037253-0001.pdf↗
• September 3, 2026•Document ID: 11037255

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6543

  Date Added:

  September 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates a diagnostic tip for the tailgate release system and tailgate ajar message.

  Associated Products (10)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra
  Associated Documents

  • DownloadMC-11037255-0001.pdf↗
• September 3, 2026•Document ID: 11037258

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6545

  Date Added:

  September 10, 2026

  Manufacturer:

  GMC

  Summary

  This PI is created to inform GM dealers that some vehicles may intermittently fail to connect wireless Apple CarPlay or Android Auto after Bluetooth pairing during the first key cycle. The condition is caused by a software anomaly. Do not replace parts. Engineering is investigating the root cause; customers may continue to drive the vehicle. This PI will be updated or replaced by a TSB once a resolution is determined.

  Associated Products (30)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup+ 10 more
  Associated Documents

  • DownloadMC-11037258-0001.pdf↗
• August 27, 2026•Document ID: 11036704

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6529B

  Date Added:

  September 2, 2026

  Manufacturer:

  CADILLAC

  Summary

  This PI was created to address an Intermittent Loss of Connectivity, GPS, or Wi-Fi Due to OnStar Module concern.

  Associated Products (20)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL
  Associated Documents

  • DownloadMC-11036704-0001.pdf↗
• August 27, 2026•Document ID: 11036690

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6541

  Date Added:

  September 2, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication

  Associated Products (130)

  2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Terrain2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista+ 110 more
  Associated Documents

  • DownloadMC-11036690-0001.pdf↗
• August 20, 2026•Document ID: 11036392

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6551C

  Date Added:

  August 27, 2026

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (233)

  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+ 213 more
  Associated Documents

  • DownloadMC-11036392-0001.pdf↗
• August 5, 2026•Document ID: 11036195

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368D

  Date Added:

  August 14, 2026

  Manufacturer:

  CHEVROLET

  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.

  Associated Products (51)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Blazer2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Sierra2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave+ 31 more
  Associated Documents

  • DownloadMC-11036195-0001.pdf↗
• August 4, 2026•Document ID: 11036476

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.40

  Date Added:

  August 31, 2026

  Manufacturer:

  GMC

  Summary

  • Additional protection for battery health and to help prevent battery drain • Improved charging messaging in the driver display • Improved vehicle diagnostics

  Associated Products (2)

  2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11036476-0001.pdf↗
• August 4, 2026•Document ID: 11035685

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N242452130-01

  Date Added:

  August 4, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Certain vehicles may have a condition in which the Engine Control Module (ECM) does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.

  Associated Products (8)

  2024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra
  Associated Documents

  • DownloadMC-11035685-0001.pdf↗
• August 3, 2026•Document ID: 11036194

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6512A

  Date Added:

  August 14, 2026

  Manufacturer:

  BUICK

  Summary

  This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.

  Associated Products (71)

  2027 Chevrolet Bolt EV2026 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 Chevrolet Blazer2026 Chevrolet Colorado2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia+ 51 more
  Associated Documents

  • DownloadMC-11036194-0001.pdf↗
• July 28, 2026•Document ID: 11035693

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6110K

  Date Added:

  August 4, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is currently investigating.

  Associated Products (84)

  2027 Buick Encore GX2027 Chevrolet Trailblazer2026 Buick Encore GX2026 Buick Envision2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac XT52026 Chevrolet Blazer2026 Chevrolet Colorado2026 Chevrolet Express2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Trailblazer2026 GMC Canyon2026 GMC Savana2026 GMC Sierra2026 GMC Yukon+ 64 more
  Associated Documents

  • DownloadMC-11035693-0001.pdf↗
• July 24, 2026•Document ID: 11035354

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6060A

  Date Added:

  July 30, 2026

  Manufacturer:

  GMC

  Summary

  This PI communicates diagnostic information to assist Technicians with a possible transmission shudder

  Associated Products (16)

  2026 Chevrolet Colorado2026 Chevrolet Silverado2026 GMC Canyon2026 GMC Sierra2025 Chevrolet Colorado2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Sierra2024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra
  Associated Documents

  • DownloadMC-11035354-0001.pdf↗
• July 24, 2026•Document ID: 11035352

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6300C

  Date Added:

  July 30, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the technician on the a potential cause for Buzz/rattle/vibration/ from the passenger side when the vehicle is under light load, with a 3.0L LZ0 Engine. It also addresses the potential for a slow/no crank or not charging.

  Associated Products (16)

  2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra
  Associated Documents

  • DownloadMC-11035352-0001.pdf↗
• July 24, 2026•Document ID: 11035351

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6446A

  Date Added:

  July 30, 2026

  Manufacturer:

  CADILLAC

  Summary

  This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.

  Associated Products (67)

  2026 Cadillac CT42026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac CT42025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Silverado2025 Chevrolet Suburban+ 47 more
  Associated Documents

  • DownloadMC-11035351-0001.pdf↗
• July 23, 2026•Document ID: 11035350

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5680B

  Date Added:

  July 30, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.

  Associated Products (18)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra
  Associated Documents

  • DownloadMC-11035350-0001.pdf↗
• July 21, 2026•Document ID: 11035340

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099J

  Date Added:

  July 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  PI to help diagnose A/C concern

  Associated Products (505)

  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+ 485 more
  Associated Documents

  • DownloadMC-11035340-0001.pdf↗
• July 21, 2026•Document ID: 11035308

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5509N

  Date Added:

  July 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides diagnostic tips for diagnosing electric trailer brakes issues.

  Associated Products (110)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Colorado2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Canyon2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Colorado2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Canyon2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL+ 90 more
  Associated Documents

  • DownloadMC-11035308-0001.pdf↗
• July 17, 2026•Document ID: 11035133

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6473F

  Date Added:

  July 21, 2026

  Manufacturer:

  GMC

  Summary

  This PI was created to help avoid unnecessary front camera module replacements

  Associated Products (16)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11035133-0001.pdf↗
• July 15, 2026•Document ID: 11035387

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.30

  Date Added:

  July 31, 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 (2)

  2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11035387-0001.pdf↗