GMC Sierra Service Bulletins (2026)

319 manufacturer communications on file.

• February 23, 2026•Document ID: 11029265

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6081B

  Date Added:

  March 3, 2026

  Manufacturer:

  GMC

  Summary

  This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584, U2BAA, U2BAB, U2BAC, U2BAD, U2BAE,

  Associated Products (21)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet BrightDrop2026 Chevrolet Silverado2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Sierra2025 Cadillac Escalade IQ2025 Chevrolet BrightDrop2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 BrightDrop Zevo2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra2023 BrightDrop Zevo2023 GMC Hummer EV Pickup+ 1 more
  Associated Documents

  • DownloadMC-11029265-0001.pdf↗
• February 20, 2026•Document ID: 11028941

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6485

  Date Added:

  February 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that the Tailgate Assist Handle is not included with certain truck models and how to get one if needed.

  Associated Products (2)

  2026 Chevrolet Silverado2026 GMC Sierra
  Associated Documents

  • DownloadMC-11028941-0001.pdf↗
• February 20, 2026•Document ID: 11028946

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6300B

  Date Added:

  February 23, 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.

  Associated Products (20)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra
  Associated Documents

  • DownloadMC-11028946-0001.pdf↗
• February 20, 2026•Document ID: 11028942

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456D

  Date Added:

  February 23, 2026

  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 (82)

  2026 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 Cadillac XT42026 Chevrolet BrightDrop2026 Chevrolet Colorado2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Traverse+ 62 more
  Associated Documents

  • DownloadMC-11028942-0001.pdf↗
• February 19, 2026•Document ID: 11028948

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6415A

  Date Added:

  February 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  PI to explain normal operation for a concern that the outside rearview mirrors may not fold when the doors are locked, due to the personalization settings for Auto Door Unlocking.

  Associated Products (46)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Suburban+ 26 more
  Associated Documents

  • DownloadMC-11028948-0001.pdf↗
• February 17, 2026•Document ID: 11028937

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6394C

  Date Added:

  February 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.

  Associated Products (53)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet BrightDrop2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Sierra2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave+ 33 more
  Associated Documents

  • DownloadMC-11028937-0001.pdf↗
• February 17, 2026•Document ID: 11028934

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6436B

  Date Added:

  February 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform dealer technicians to not replace anything at this time in regards to this concern. The vehicle is still safe to drive with no other issues.

  Associated Products (18)

  2026 Chevrolet Blazer2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Silverado2026 GMC Canyon2026 GMC Sierra2025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Sierra2024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra
  Associated Documents

  • DownloadMC-11028934-0001.pdf↗
• February 16, 2026•Document ID: 11028931

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT4506J

  Date Added:

  February 23, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that some owners of Heavy Duty Trucks and Utilities may ask if they can lower their tire pressures. Tire pressures being set to the "Tire and Loading Label" will ensure the safe handling and ride characteristics of the truck and should not be lowered.

  Associated Products (52)

  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 Sierra2017 Chevrolet Silverado2017 GMC Sierra+ 32 more
  Associated Documents

  • DownloadMC-11028931-0001.pdf↗
• February 16, 2026•Document ID: 11028819

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252536560

  Date Added:

  February 16, 2026

  Manufacturer:

  CHEVROLET

  Summary

  Certain vehicles may experience water intrusion due to a hole in the cabin Pressure Relief Valve. Dealers are to seal the hole using RTV sealant.

  Associated Products (2)

  2026 Chevrolet Silverado2026 GMC Sierra
  Associated Documents

  • DownloadMC-11028819-0001.pdf↗
• February 16, 2026•Document ID: 11028933

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6213D

  Date Added:

  February 23, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that the Tailgate Assist Handle is not included with certain truck models and how to get one if needed.

  Associated Products (12)

  2026 Chevrolet Silverado2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra
  Associated Documents

  • DownloadMC-11028933-0001.pdf↗
• February 12, 2026•Document ID: 11028857

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6120C

  Date Added:

  February 18, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates information to direct to GM Upfitter bulletin 193 or 205 depending on trim level for installation instructions for the 9L7 Upfitter Switches.

  Associated Products (8)

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

  • DownloadMC-11028857-0001.pdf↗
• February 12, 2026•Document ID: 11028859

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5865L

  Date Added:

  February 18, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft.

  Associated Products (31)

  2026 Cadillac CT42026 Chevrolet Colorado2026 Chevrolet Silverado2026 GMC Canyon2026 GMC Sierra2025 Cadillac CT42025 Chevrolet Colorado2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Sierra2024 Cadillac CT42024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Sierra2023 Cadillac CT42023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Sierra+ 11 more
  Associated Documents

  • DownloadMC-11028859-0001.pdf↗
• February 11, 2026•Document ID: 11028731

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252521591-03

  Date Added:

  February 11, 2026

  Manufacturer:

  CADILLAC

  Summary

  Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will re-program the IPM or Front View Camera depending on what the vehicle is equipped with.

  Associated Products (13)

  2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11028731-0001.pdf↗
• February 10, 2026•Document ID: 11028672

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252537030

  Date Added:

  February 10, 2026

  Manufacturer:

  GMC

  Summary

  Certain vehicles listed above, may have a condition where the trailer hitch label understates hitch capability. Dealers will remove the sticker on trailer hitch.

  Associated Products (6)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11028672-0001.pdf↗
• February 10, 2026•Document ID: 11028675

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N252521591-02

  Date Added:

  February 10, 2026

  Manufacturer:

  GMC

  Summary

  Certain vehicles listed above may have a condition in which hard braking may unexpectedly engage. Dealers will reprogram the Image Processing Module.

  Associated Products (13)

  2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11028675-0001.pdf↗
• February 7, 2026•Document ID: 11028704

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6101

  Date Added:

  February 11, 2026

  Manufacturer:

  BUICK

  Summary

  The document makes technicians aware of a valvetrain tick noise that is created by one or more soft lifters. The soft lifter concern is due to manufacturing debris within the lifter when it was manufactured. The document instructs the technician to replace the soft lifter(s) and the rocker arm it operates.

  Associated Products (14)

  2026 Buick Enclave2026 Chevrolet Colorado2026 Chevrolet Silverado2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Sierra2025 Buick Enclave2025 Chevrolet Colorado2025 Chevrolet Silverado2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Sierra
  Associated Documents

  • DownloadMC-11028704-0001.pdf↗
• February 7, 2026•Document ID: 11028703

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6452C

  Date Added:

  February 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This is a diagnostic PI to assist on a repair to fix a concern for the HVAC temperature doors binding at times

  Associated Products (16)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL
  Associated Documents

  • DownloadMC-11028703-0001.pdf↗
• February 7, 2026•Document ID: 11028701

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602R

  Date Added:

  February 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.

  Associated Products (31)

  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 BrightDrop Zevo2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe+ 11 more
  Associated Documents

  • DownloadMC-11028701-0001.pdf↗
• February 3, 2026•Document ID: 11028697

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456C

  Date Added:

  February 10, 2026

  Manufacturer:

  GMC

  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 (55)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Sierra2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV+ 35 more
  Associated Documents

  • DownloadMC-11028697-0001.pdf↗
• February 2, 2026•Document ID: 11028660

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6467A

  Date Added:

  February 9, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that this concern is being root caused and no repairs should be attempted at this time

  Associated Products (4)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Silverado2025 GMC Sierra
  Associated Documents

  • DownloadMC-11028660-0001.pdf↗