Chevrolet Corvette Service Bulletins

1,074 manufacturer communications on file.

• April 30, 2026•Document ID: 11032559

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540G

  Date Added:

  May 8, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealers a procedure to reset the radio.

  Associated Products (136)

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  Associated Documents

  • DownloadMC-11032559-0001.pdf↗
• April 30, 2026•Document ID: 11031749

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602U

  Date Added:

  April 30, 2026

  Manufacturer:

  GMC

  Summary

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

  Associated Products (17)

  2025 Chevrolet Corvette2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11031749-0001.pdf↗
• April 24, 2026•Document ID: 11031946

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6406G

  Date Added:

  May 2, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD

  Associated Products (11)

  2025 Chevrolet Corvette2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11031946-0001.pdf↗
• April 23, 2026•Document ID: 11031745

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629D

  Date Added:

  April 30, 2026

  Manufacturer:

  CHEVROLET

  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 (76)

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  Associated Documents

  • DownloadMC-11031745-0001.pdf↗
• April 20, 2026•Document ID: 11031717

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6507

  Date Added:

  April 29, 2026

  Manufacturer:

  CADILLAC

  Summary

  This PI communicates information on a SPS programming issue causing Serial Data Authentication Configuration to fail.

  Associated Products (10)

  2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-11031717-0001.pdf↗
• April 14, 2026•Document ID: 11031514

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6503

  Date Added:

  April 23, 2026

  Manufacturer:

  BUICK

  Summary

  This preliminary information is to inform technicians that GM is placing the B174W Front View Camera Module (ACP2) on part restriction due to elevated replacement rates and ongoing engineering investigation. Technicians must not replace the front camera module unless they have: 1.Completed the diagnostic procedure in this PI, and 2.Contacted TAC and received authorization, including the SI document number and specific step that directs camera replacement.

  Associated Products (101)

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  Associated Documents

  • DownloadMC-11031514-0001.pdf↗
• April 1, 2026•Document ID: 11030974

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271Q

  Date Added:

  April 7, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information communicates information about how to determine if a wheel and tires size change is available.

  Associated Products (210)

  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 Colorado+ 190 more
  Associated Documents

  • DownloadMC-11030974-0001.pdf↗
• March 31, 2026•Document ID: 11030973

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5781D

  Date Added:

  April 7, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that characterizing certain parts is no longer required, the service instruction was changed but technicians are still trying to perform the function causing further confusion.

  Associated Products (5)

  2025 Chevrolet Corvette2024 Chevrolet Corvette2023 Chevrolet Corvette2022 Chevrolet Corvette2021 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11030973-0001.pdf↗
• March 25, 2026•Document ID: 11030354

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6624A

  Date Added:

  March 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  The purpose of this Preliminary Information is to assist dealership technicians in how to order a restricted 12v lithium ion battery.

  Associated Products (1)

  2025 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11030354-0001.pdf↗
• March 9, 2026•Document ID: 11030095

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6406F

  Date Added:

  March 17, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communicates direction for different audio issues with RPO UQA, UQF, UQS, or NKD

  Associated Products (14)

  2025 Chevrolet Corvette2024 Chevrolet Corvette2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11030095-0001.pdf↗
• March 9, 2026•Document ID: 11030092

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6104

  Date Added:

  March 17, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.

  Associated Products (210)

  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 Colorado+ 190 more
  Associated Documents

  • DownloadMC-11030092-0001.pdf↗
• March 9, 2026•Document ID: 11030091

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902V

  Date Added:

  March 17, 2026

  Manufacturer:

  BUICK

  Summary

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

  Associated Products (210)

  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 Colorado+ 190 more
  Associated Documents

  • DownloadMC-11030091-0001.pdf↗
• March 6, 2026•Document ID: 11029958

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602T

  Date Added:

  March 11, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (17)

  2025 Chevrolet Corvette2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11029958-0001.pdf↗
• March 5, 2026•Document ID: 11029949

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629C

  Date Added:

  March 11, 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 (76)

  2026 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 Equinox2026 Chevrolet Tahoe2026 Chevrolet Trailblazer2026 Chevrolet Traverse2026 Chevrolet Trax2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup+ 56 more
  Associated Documents

  • DownloadMC-11029949-0001.pdf↗
• March 2, 2026•Document ID: 11030460

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  661.20

  Date Added:

  April 1, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improvements to availability of Lane Keep Assist. • Fixes to help ensure safety features remain functional when windshield freezes. • Fixes to diagnostics that impact Automatic Emergency Braking indicator. • Improvements to audio system performance. • Fixes to help ensure proper functionality for the center display.

  Associated Products (2)

  2025 Chevrolet Corvette2024 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11030460-0001.pdf↗
• March 2, 2026•Document ID: 11029953

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6209H

  Date Added:

  March 11, 2026

  Manufacturer:

  GMC

  Summary

  This PI communicates information informing dealers that Engineering is aware of the clunk noise and is currently investigating a root cause.

  Associated Products (16)

  2025 Chevrolet Corvette2025 GMC Hummer EV SUV2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11029953-0001.pdf↗
• March 2, 2026•Document ID: 11029950

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425D

  Date Added:

  March 11, 2026

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC'ss

  Associated Products (210)

  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 Colorado+ 190 more
  Associated Documents

  • DownloadMC-11029950-0001.pdf↗
• February 27, 2026•Document ID: 11029449

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602S

  Date Added:

  March 3, 2026

  Manufacturer:

  GMC

  Summary

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

  Associated Products (11)

  2025 Chevrolet Corvette2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11029449-0001.pdf↗
• February 20, 2026•Document ID: 11028942

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6456D

  Date Added:

  February 23, 2026

  Manufacturer:

  CADILLAC

  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 (68)

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  Associated Documents

  • DownloadMC-11028942-0001.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 (17)

  2025 Chevrolet Corvette2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Chevrolet Corvette2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-11028701-0001.pdf↗