GMC Sierra Service Bulletins

10,018 manufacturer communications on file.

• July 31, 2025•Document ID: 11021308

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5161L

  Date Added:

  August 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic

  Associated Products (40)

  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+ 20 more
  Associated Documents

  • DownloadMC-11021308-0001.pdf↗
• July 30, 2025•Document ID: 11021285

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602G

  Date Added:

  August 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (26)

  2025 Chevrolet Corvette2025 Chevrolet Silverado2025 Chevrolet Suburban2025 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 Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL+ 6 more
  Associated Documents

  • DownloadMC-11021285-0001.pdf↗
• July 29, 2025•Document ID: 11021312

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6212D

  Date Added:

  August 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.

  Associated Products (30)

  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+ 10 more
  Associated Documents

  • DownloadMC-11021312-0001.pdf↗
• July 28, 2025•Document ID: 11021303

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5865E

  Date Added:

  August 4, 2025

  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 (26)

  2025 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 Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado+ 6 more
  Associated Documents

  • DownloadMC-11021303-0001.pdf↗
• July 26, 2025•Document ID: 11021070

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250552

  Date Added:

  July 31, 2025

  Manufacturer:

  GMC

  Summary

  GM Update N25-250552 • Improvements to OnStar through enhancements for charging, Super Cruise, remote start, and collision notification. • Fixes to address connectivity issues. 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 (1)

  2024 GMC Sierra
  Associated Documents

  • DownloadMC-11021070-0001.pdf↗
• July 26, 2025•Document ID: 11021069

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-F163BU

  Date Added:

  July 31, 2025

  Manufacturer:

  GMC

  Summary

  GM Update N25-F163BU This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. 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 Silverado2026 GMC Sierra
  Associated Documents

  • DownloadMC-11021069-0001.pdf↗
• July 26, 2025•Document ID: 11020963

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393B

  Date Added:

  July 30, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.

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  Associated Documents

  • DownloadMC-11020963-0001.pdf↗
• July 25, 2025•Document ID: 11020964

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6413

  Date Added:

  July 30, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is for technicians that will have this message after USB updating the radio. The repair should not involve replacing a module as pressing the reset button will correct this issue.

  Associated Products (31)

  2026 Buick Enclave2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 GMC Terrain2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Sierra2025 GMC Terrain2025 GMC Yukon+ 11 more
  Associated Documents

  • DownloadMC-11020964-0001.pdf↗
• July 24, 2025•Document ID: 11020961

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6023C

  Date Added:

  July 30, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the possibility of injector related DTC's with malfunction indicator lamp on and potential rough idle

  Associated Products (12)

  2025 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-11020961-0001.pdf↗
• July 24, 2025•Document ID: 11020960

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602F

  Date Added:

  July 30, 2025

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (27)

  2025 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 Yukon2023 GMC Yukon XL+ 7 more
  Associated Documents

  • DownloadMC-11020960-0001.pdf↗
• July 23, 2025•Document ID: 11020863

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N242435630-05

  Date Added:

  July 23, 2025

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Certain model years and vehicle makes noted in the table above may have a condition where the battery is at risk for a drain following an over-the-air update. Dealers are to reprogram the serial data gateway module.

  Associated Products (25)

  2025 Cadillac CT42024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Chevrolet Corvette2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2022 Buick Envision2022 Cadillac CT4+ 5 more
  Associated Documents

  • DownloadMC-11020863-0001.pdf↗
• July 22, 2025•Document ID: 11021068

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250380

  Date Added:

  July 31, 2025

  Manufacturer:

  GMC

  Summary

  Software Update for your 24MY Chevrolet Silverado / GMC Sierra: • Improvements to software performance. • Fixes for audio system performance. • Improvements to connectivity for Bluetooth. • Fixes to help ensure successful software updates and notifications. • Fixes to address instances of inactive driver display. • Improvements to functionality for USB and steering wheel controls. 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 (1)

  2024 GMC Sierra
  Associated Documents

  • DownloadMC-11021068-0001.pdf↗
• July 22, 2025•Document ID: 11021067

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250403

  Date Added:

  July 31, 2025

  Manufacturer:

  GMC

  Summary

  • Improves Check Engine Light accuracy. • Improves behavior of aero shutter system in freezing temperatures. 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 (1)

  2024 GMC Sierra
  Associated Documents

  • DownloadMC-11021067-0001.pdf↗
• July 18, 2025•Document ID: 11020876

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5910B

  Date Added:

  July 24, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with the dome light off switch not working after the BCM goes asleep. Advise dealership it is working as designed.

  Associated Products (6)

  2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11020876-0001.pdf↗
• July 18, 2025•Document ID: 11020816

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5601C

  Date Added:

  July 23, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

  Associated Products (726)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette+ 706 more
  Associated Documents

  • DownloadMC-11020816-0001.pdf↗
• July 18, 2025•Document ID: 11020809

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5601B

  Date Added:

  July 23, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

  Associated Products (275)

  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+ 255 more
  Associated Documents

  • DownloadMC-11020809-0001.pdf↗
• July 17, 2025•Document ID: 11020720

  Service Campaign
  STEERING

  Mfr Comm. #:

  N252512260

  Date Added:

  July 17, 2025

  Manufacturer:

  CHEVROLET

  Summary

  Certain vehicles listed above may have a condition in which the fastener for the intermediate steering shaft to steering gear assembly may have suspect torque results. Dealers will replace and torque fastener.

  Associated Products (4)

  2026 Chevrolet Silverado2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Silverado
  Associated Documents

  • DownloadMC-11020720-0001.pdf↗
• July 17, 2025•Document ID: 11020808

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5774B

  Date Added:

  July 23, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates A vehicle may have a concern of any of the following DTC's set P3189 P318A P318B P318C P318D P318E P318F P3190. Informs dealer to perform a crankshaft variation relearn, Also notes that SI may not isolate.

  Associated Products (42)

  2025 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 Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban+ 22 more
  Associated Documents

  • DownloadMC-11020808-0001.pdf↗
• July 16, 2025•Document ID: 11020716

  Service Campaign
  ENGINE

  Mfr Comm. #:

  N252502891

  Date Added:

  July 16, 2025

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the rear electric drive transmission module.

  Associated Products (8)

  2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet BrightDrop2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Silverado
  Associated Documents

  • DownloadMC-11020716-0001.pdf↗
• July 16, 2025•Document ID: 11020880

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6274C

  Date Added:

  July 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information PI states to not replace anything at the dealership for this concern and engineering is investigating.

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  Associated Documents

  • DownloadMC-11020880-0001.pdf↗