GMC Sierra Service Bulletins

10,013 manufacturer communications on file.

• September 21, 2026•Document ID: 11037551

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6549

  Date Added:

  September 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates an issue with a service column lock message and DTC U3000. Engineering is working on the issue and in the meantime dealerships are to reset/clear the DTC and perform four sleep cycles to verify the DTC does not return.

  Associated Products (23)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Chevrolet Silverado+ 3 more
  Associated Documents

  • DownloadMC-11037551-0001.pdf↗
• September 21, 2026•Document ID: 11037550

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5700H

  Date Added:

  September 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates the proper part numbers for transmission connectors and internal harness to prevent confusion when ordering

  Associated Products (75)

  2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Camaro+ 55 more
  Associated Documents

  • DownloadMC-11037550-0001.pdf↗
• September 17, 2026•Document ID: 11037330

  Service Campaign
  POWER TRAIN

  Mfr Comm. #:

  N262567720

  Date Added:

  September 17, 2026

  Manufacturer:

  GMC

  Summary

  Certain vehicles may have received transmission mounting bolts that do not meet expected hardness specifications. Loose or failed bolts may result in hard shifting from the transmission and/or noise. Dealers will replace both transmission mounting bolts.

  Associated Products (2)

  2026 Chevrolet Silverado2026 GMC Sierra
  Associated Documents

  • DownloadMC-11037330-0001.pdf↗
• September 16, 2026•Document ID: 11037321

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N262558690

  Date Added:

  September 16, 2026

  Manufacturer:

  GMC

  Summary

  General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.

  Associated Products (17)

  2023 Chevrolet Colorado2023 Chevrolet Equinox2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra2023 GMC Terrain2022 Buick Enclave2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Camaro2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11037321-0001.pdf↗
• September 15, 2026•Document ID: 11037446

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6426C

  Date Added:

  September 22, 2026

  Manufacturer:

  GMC

  Summary

  If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.

  Associated Products (53)

  2027 Buick Enclave2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Equinox2026 Buick Enclave2026 Cadillac Celestiq2026 Cadillac CT52026 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 Tahoe+ 33 more
  Associated Documents

  • DownloadMC-11037446-0001.pdf↗
• September 15, 2026•Document ID: 11037445

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6545A

  Date Added:

  September 22, 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.

  Associated Products (28)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon+ 8 more
  Associated Documents

  • DownloadMC-11037445-0001.pdf↗
• September 11, 2026•Document ID: 11037312

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N242452131-02

  Date Added:

  September 15, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall involving certain 2023-2024 model year Chevrolet Colorado / Silverado 1500 and GMC Canyon / Sierra 1500 vehicles equipped with a 2.7L engine (RPO L3B). The Engine Control Module (ECM) may 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-11037312-0001.pdf↗
• September 10, 2026•Document ID: 11037261

  Emissions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N232428992

  Date Added:

  September 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

  General Motors has decided to conduct a Voluntary Emission Recall involving certain 2024 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. These vehicles may have a Brake System Control Module (BSCM) that does not correctly set a Diagnostic Trouble Code (DTC) or illuminate the Malfunction Indicator Lamp (Check Engine Light) if certain system faults with the potential to affect the vehicle’s emissions control system were to occur. Dashboard warning messages and warning lights for traction control, stability control, and brake system would remain functional in the event that a fault that could potentially impact drivability is detected. Dealers are to reprogram the BSCM.

  Associated Products (2)

  2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11037261-0001.pdf↗
• 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)

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  Associated Documents

  • DownloadMC-11037320-0001.pdf↗
• September 8, 2026•Document ID: 11037763

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.20

  Date Added:

  October 2, 2026

  Manufacturer:

  GMC

  Summary

  • Improvements to accuracy for Diesel Exhaust Fluid level shown in driver display • Improvements to the performance of Super Cruise

  Associated Products (2)

  2023 Chevrolet Silverado2023 GMC Sierra
  Associated Documents

  • DownloadMC-11037763-0001.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↗
• September 2, 2026•Document ID: 11036718

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6583J

  Date Added:

  September 2, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates how to move U018B from Current to History.

  Associated Products (8)

  2025 Cadillac Celestiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Silverado2025 GMC Sierra2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11036718-0001.pdf↗
• September 1, 2026•Document ID: 11037762

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.10

  Date Added:

  October 2, 2026

  Manufacturer:

  GMC

  Summary

  • Improvements to reliability when extending the running boards on your vehicle • Improves transmission diagnostic software • Reduces unnecessary check engine light activations

  Associated Products (2)

  2023 Chevrolet Silverado2023 GMC Sierra
  Associated Documents

  • DownloadMC-11037762-0001.pdf↗
• September 1, 2026•Document ID: 11036648

  Emissions
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N262558690-01

  Date Added:

  September 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Emission Recall. General Motors has decided to conduct a Voluntary Emission Recall. Certain vehicles listed above may have a condition which can cause the fuel pump power control module to fail. If this were to occur, fuel flow to the engine could be interrupted. Dealers will replace the fuel pump power control module.

  Associated Products (16)

  2023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra2023 GMC Terrain2022 Buick Enclave2022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11036648-0001.pdf↗
• August 28, 2026•Document ID: 11036440

  Service Campaign
  ENGINE

  Mfr Comm. #:

  N262572131

  Date Added:

  August 28, 2026

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the oil galley in the cylinder head was not drilled properly. Dealers are to perform the inspection procedure contained within this bulletin.

  Associated Products (2)

  2026 Chevrolet Silverado2026 GMC Sierra
  Associated Documents

  • DownloadMC-11036440-0001.pdf↗
• August 28, 2026•Document ID: 11036715

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6533B

  Date Added:

  September 2, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.

  Associated Products (25)

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  Associated Documents

  • DownloadMC-11036715-0001.pdf↗
• August 27, 2026•Document ID: 11036707

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6455C

  Date Added:

  September 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI communications information that Engineering has released an OTA to correct the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting.

  Associated Products (4)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra
  Associated Documents

  • DownloadMC-11036707-0001.pdf↗
• August 27, 2026•Document ID: 11036713

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6127A

  Date Added:

  September 2, 2026

  Manufacturer:

  GMC

  Summary

  This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. The torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-NA-148 before requesting a part through PQC.

  Associated Products (16)

  2026 Chevrolet Colorado2026 GMC Canyon2025 Chevrolet Colorado2025 GMC Canyon2024 Chevrolet Colorado2024 GMC Canyon2023 Chevrolet Colorado2023 GMC Canyon2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11036713-0001.pdf↗