GMC Sierra Service Bulletins

10,018 manufacturer communications on file.

• June 5, 2025•Document ID: 11019528

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6587C

  Date Added:

  June 16, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

  Associated Products (21)

  2025 Buick Enclave2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Chevrolet Silverado2024 Chevrolet Traverse2024 GMC Acadia+ 1 more
  Associated Documents

  • DownloadMC-11019528-0001.pdf↗
• June 3, 2025•Document ID: 11026024

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  24-NA-262

  Date Added:

  December 3, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin helps aid the tech in possible 10L100 transmission noise that may be normal or abnormal depending on the concern noted.

  Associated Products (12)

  2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-11026024-0001.pdf↗
• June 2, 2025•Document ID: 11026022

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  07-08-42-006U

  Date Added:

  December 3, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

  Associated Products (38)

  2025 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 Sierra2016 Chevrolet Silverado2016 GMC Sierra+ 18 more
  Associated Documents

  • DownloadMC-11026022-0001.pdf↗
• June 2, 2025•Document ID: 11019910

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250020

  Date Added:

  July 1, 2025

  Manufacturer:

  CHEVROLET

  Summary

  • Improves how center display adjusts to lighting changes. • Improved warnings when a key is missing. • Better tuning for interior lighting in Stealth mode. • Improvements to automatic low beam headlamp logic. • Smoother dimming and transitions from day to night. 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 Silverado2025 GMC Sierra
  Associated Documents

  • DownloadMC-11019910-0001.pdf↗
• June 2, 2025•Document ID: 11019536

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6392

  Date Added:

  June 16, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary Information is to communicate to GM Technicians to not replace any parts for this as this feature is not yet available for customers. A TSB will be made once this feature is available.

  Associated Products (4)

  2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11019536-0001.pdf↗
• June 2, 2025•Document ID: 11019533

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6362C

  Date Added:

  June 16, 2025

  Manufacturer:

  GMC

  Summary

  This preliminary information communicates to dealership technicians various radio concerns are all related to software and Engineering is currently working on a design improvement.

  Associated Products (25)

  2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Sierra2024 Buick Envision2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Equinox+ 5 more
  Associated Documents

  • DownloadMC-11019533-0001.pdf↗
• May 30, 2025•Document ID: 11019075

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (37)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 17 more
  Associated Documents

  • DownloadMC-11019075-0001.pdf↗
• May 30, 2025•Document ID: 11019074

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019074-0001.pdf↗
• May 30, 2025•Document ID: 11019073

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019073-0001.pdf↗
• May 30, 2025•Document ID: 11019072

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019072-0001.pdf↗
• May 29, 2025•Document ID: 11019065

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602C

  Date Added:

  June 4, 2025

  Manufacturer:

  GMC

  Summary

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

  Associated Products (27)

  2026 GMC Yukon XL2025 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 BrightDrop Zevo2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon+ 7 more
  Associated Documents

  • DownloadMC-11019065-0001.pdf↗
• May 27, 2025•Document ID: 11019071

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5981F

  Date Added:

  June 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.

  Associated Products (23)

  2026 Cadillac Escalade ESV2026 Cadillac Vistiq2026 Chevrolet BrightDrop2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 BrightDrop Zevo+ 3 more
  Associated Documents

  • DownloadMC-11019071-0001.pdf↗
• May 23, 2025•Document ID: 11018663

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6390

  Date Added:

  May 29, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates that vehicles with RPO BOY do not have digital key feature, engineering is working on a design improvement.

  Associated Products (4)

  2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11018663-0001.pdf↗
• May 23, 2025•Document ID: 11018661

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6066A

  Date Added:

  May 29, 2025

  Manufacturer:

  GMC

  Summary

  This PI communicates to dealer technicians that DTC P060C is under investigation and to clear the DTC and return the vehicle to the customer.

  Associated Products (4)

  2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11018661-0001.pdf↗
• May 23, 2025•Document ID: 11018541

  Service Campaign
  ENGINE

  Mfr Comm. #:

  N252494003

  Date Added:

  May 23, 2025

  Manufacturer:

  CADILLAC

  Summary

  Certain vehicles listed above, may have a condition where the connecting rod and/or crankshaft engine components in these vehicles may have manufacturing defects that can lead to engine damage and engine failure. This special coverage covers if an engine failure occurs in the vehicle as a result of the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 23, 2025, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 23, 2025, must be submitted to the Service Contract provider. Vehicle owners or lessees who paid for repairs referenced in this Special Coverage (“Customers”) are eligible for reimbursement of their reasonable and customary expenses in accordance with the procedures specified below. The conditional right to reimbursement is provided by GM solely in the interest of customer satisfaction and is personal to Customers. Customers may not assign and GM does not consent to any assignment of any Customer’s right to submit reimbursement claims, or to receive reimbursement, or any other rights granted by this Special Coverage to any third party, including but not limited to service contract providers, and this Special Coverage is not intended to and does not confer any third party beneficiary, subrogation or contribution rights, or any other rights to reimbursement, against GM, whether in law, equity or otherwise, on any third parties. Dealers are to replace the engine. The repairs will be made at no charge to the customer.

  Associated Products (32)

  2024 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 XL2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban+ 12 more
  Associated Documents

  • DownloadMC-11018541-0001.pdf↗
• May 22, 2025•Document ID: 11018660

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6389

  Date Added:

  May 29, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that this concern is for assist step lighting is not turning on when entering vehicle or unlocking vehicle using fob. Engineering is investigating.

  Associated Products (2)

  2025 Chevrolet Silverado2025 GMC Sierra
  Associated Documents

  • DownloadMC-11018660-0001.pdf↗
• May 22, 2025•Document ID: 11018659

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5966E

  Date Added:

  May 29, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.

  Associated Products (228)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 208 more
  Associated Documents

  • DownloadMC-11018659-0001.pdf↗
• May 21, 2025•Document ID: 11018531

  Service Campaign
  POWER TRAIN

  Mfr Comm. #:

  N242483540-01

  Date Added:

  May 21, 2025

  Manufacturer:

  GMC

  Summary

  Certain vehicles listed above may have a condition in which the transmission may not shift properly. Dealers are to replace the transmission check balls and valve body spacer plate.

  Associated Products (2)

  2024 Chevrolet Silverado2024 GMC Sierra
  Associated Documents

  • DownloadMC-11018531-0001.pdf↗
• May 21, 2025•Document ID: 11018655

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6355

  Date Added:

  May 29, 2025

  Manufacturer:

  GMC

  Summary

  This is to communicate to the dealership technicians to not perform any repairs for this issue. PI will be updated or replaced with TSB once a determination has been made.

  Associated Products (10)

  2025 Buick Envision2025 Cadillac CT52025 Chevrolet Blazer2025 Chevrolet Silverado2025 GMC Sierra2024 Buick Enclave2024 Chevrolet Blazer2024 Chevrolet Silverado2024 GMC Acadia2024 GMC Sierra
  Associated Documents

  • DownloadMC-11018655-0001.pdf↗
• May 20, 2025•Document ID: 11018647

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6356B

  Date Added:

  May 29, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.

  Associated Products (31)

  2026 Cadillac Celestiq2026 Cadillac Vistiq2025 Buick Enclave2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade+ 11 more
  Associated Documents

  • DownloadMC-11018647-0001.pdf↗