Chevrolet Corvette Service Bulletins

4,221 manufacturer communications on file.

• June 17, 2026•Document ID: 11034014

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6503B

  Date Added:

  June 22, 2026

  Manufacturer:

  CADILLAC

  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 (42)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 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 Buick Envision2025 Cadillac CT52025 Cadillac Lyriq+ 22 more
  Associated Documents

  • DownloadMC-11034014-0001.pdf↗
• June 16, 2026•Document ID: 11034038

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-252332

  Date Added:

  June 24, 2026

  Manufacturer:

  GMC

  Summary

  • Fixes to help prevent loss of functionality for connectivity features such as OnStar, Wi-Fi, Navigation, and Super Cruise.

  Associated Products (35)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Lyriq2026 Cadillac Optiq2026 Chevrolet Blazer2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Sierra2026 GMC Terrain2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq+ 15 more
  Associated Documents

  • DownloadMC-11034038-0001.pdf↗
• June 5, 2026•Document ID: 11033754

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6517A

  Date Added:

  June 8, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not present, verify the camera is clean, then contact PQC if no issue is found.

  Associated Products (8)

  2026 Chevrolet Colorado2026 GMC Canyon2025 Chevrolet Colorado2025 Chevrolet Corvette2025 GMC Canyon2024 Chevrolet Colorado2024 Chevrolet Corvette2024 GMC Canyon
  Associated Documents

  • DownloadMC-11033754-0001.pdf↗
• June 3, 2026•Document ID: 11033726

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6503A

  Date Added:

  June 8, 2026

  Manufacturer:

  CHEVROLET

  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 (114)

  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 BrightDrop+ 94 more
  Associated Documents

  • DownloadMC-11033726-0001.pdf↗
• May 29, 2026•Document ID: 11033186

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6209K

  Date Added:

  June 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates recovery procedure after return to dealer message.

  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-11033186-0001.pdf↗
• May 28, 2026•Document ID: 11033145

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6517

  Date Added:

  June 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not present, verify the camera is clean, then contact PQC if no issue is found.

  Associated Products (8)

  2026 Chevrolet Colorado2026 GMC Canyon2025 Chevrolet Colorado2025 Chevrolet Corvette2025 GMC Canyon2024 Chevrolet Colorado2024 Chevrolet Corvette2024 GMC Canyon
  Associated Documents

  • DownloadMC-11033145-0001.pdf↗
• May 27, 2026•Document ID: 11033150

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6519

  Date Added:

  June 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is to inform technicians and customers that the voice command will be inoperative when trying to open applications. Engineering is investigating and this PI will be converted to a bulletin when a repair is available.

  Associated Products (170)

  2027 Chevrolet Bolt EV2027 Chevrolet Corvette2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop+ 150 more
  Associated Documents

  • DownloadMC-11033150-0001.pdf↗
• May 27, 2026•Document ID: 11032936

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N262547330

  Date Added:

  May 27, 2026

  Manufacturer:

  BUICK

  Summary

  Certain vehicles may have a condition in which the Telematic Control Module may enter an unrecoverable state. Dealers are to reprogram the Telematic Control Module. IMPORTANT: The module may be several software versions behind and could take multiple programming events to bring it to the latest software level (The same calibration screen MUST be displayed to validate the module has been programmed to the latest level). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.

  Associated Products (32)

  2026 Buick Enclave2026 Cadillac CT52026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Sierra2026 GMC Terrain2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT4+ 12 more
  Associated Documents

  • DownloadMC-11032936-0001.pdf↗
• May 21, 2026•Document ID: 11032952

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6215C

  Date Added:

  May 28, 2026

  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 (73)

  2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 53 more
  Associated Documents

  • DownloadMC-11032952-0001.pdf↗
• May 19, 2026•Document ID: 11032951

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6605B

  Date Added:

  May 28, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that many parts for this vehicle are on a part restriction. Dealers are directed to check EPC for restriction notes and to contact TAC if restricted parts need to be ordered.

  Associated Products (3)

  2027 Chevrolet Corvette2026 Chevrolet Corvette2025 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11032951-0001.pdf↗
• May 19, 2026•Document ID: 11032948

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6602X

  Date Added:

  May 28, 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-11032948-0001.pdf↗
• May 19, 2026•Document ID: 11032945

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6076A

  Date Added:

  May 28, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates that the transmission oil life monitor when reset does not stay at 100%

  Associated Products (3)

  2026 Chevrolet Corvette2025 Chevrolet Corvette2024 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11032945-0001.pdf↗
• May 15, 2026•Document ID: 11032788

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6209J

  Date Added:

  May 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates recovery procedure after return to dealer message.

  Associated Products (24)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Silverado2022 Chevrolet Suburban+ 4 more
  Associated Documents

  • DownloadMC-11032788-0001.pdf↗
• May 14, 2026•Document ID: 11032784

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540J

  Date Added:

  May 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (153)

  2027 Chevrolet Bolt EV2026 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 Blazer+ 133 more
  Associated Documents

  • DownloadMC-11032784-0001.pdf↗
• May 14, 2026•Document ID: 11032783

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6406K

  Date Added:

  May 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (24)

  2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Chevrolet Silverado2022 Chevrolet Suburban+ 4 more
  Associated Documents

  • DownloadMC-11032783-0001.pdf↗
• May 14, 2026•Document ID: 11032781

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393L

  Date Added:

  May 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.

  Associated Products (54)

  2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Chevrolet Colorado2026 Chevrolet Corvette2026 Chevrolet Equinox2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup+ 34 more
  Associated Documents

  • DownloadMC-11032781-0001.pdf↗
• May 11, 2026•Document ID: 11032770

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6513

  Date Added:

  May 19, 2026

  Manufacturer:

  BUICK

  Summary

  This PI states that if SDGM DTC U3000 Sym 49 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.

  Associated Products (35)

  2026 Cadillac CT42026 Chevrolet Silverado2026 GMC Sierra2025 Cadillac CT42025 Chevrolet Silverado2025 GMC Sierra2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV+ 15 more
  Associated Documents

  • DownloadMC-11032770-0001.pdf↗
• May 11, 2026•Document ID: 11032768

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6512

  Date Added:

  May 19, 2026

  Manufacturer:

  BUICK

  Summary

  This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.

  Associated Products (42)

  2026 Cadillac CT52026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Hummer EV Pickup+ 22 more
  Associated Documents

  • DownloadMC-11032768-0001.pdf↗
• May 11, 2026•Document ID: 11032767

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540H

  Date Added:

  May 19, 2026

  Manufacturer:

  GMC

  Summary

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

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  2027 Chevrolet Bolt EV2026 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 Blazer+ 133 more
  Associated Documents

  • DownloadMC-11032767-0001.pdf↗
• May 11, 2026•Document ID: 11032764

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6423A

  Date Added:

  May 19, 2026

  Manufacturer:

  BUICK

  Summary

  Pi created to provide GM dealers with information on gathering information for projection issue

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  Associated Documents

  • DownloadMC-11032764-0001.pdf↗