GMC Sierra Service Bulletins (2027)

10 manufacturer communications on file.

• October 24, 2026•Document ID: 11038744

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368F

  Date Added:

  October 29, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener and to replace the opener with a new updated part.

  Associated Products (57)

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  Associated Documents

  • DownloadMC-11038744-0001.pdf↗
• October 20, 2026•Document ID: 11038742

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6139

  Date Added:

  October 29, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information advises dealers that Engine Control Module designation E94 is on an ordering restriction through technical assistance.

  Associated Products (2)

  2027 Chevrolet Silverado2027 GMC Sierra
  Associated Documents

  • DownloadMC-11038742-0001.pdf↗
• October 16, 2026•Document ID: 11038594

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6559

  Date Added:

  October 20, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communicates the fact that multiple parts for this vehicle are on a part restriction. Dealers are directed to check EPC for restriction notes and that it will require additional processes to obtain a restricted part.

  Associated Products (2)

  2027 Chevrolet Silverado2027 GMC Sierra
  Associated Documents

  • DownloadMC-11038594-0001.pdf↗
• October 15, 2026•Document ID: 11038589

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6136

  Date Added:

  October 19, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information informs dealers that the 2027 5.7L (L76) and 6.6L (L78) engines are on an exchange program. Dealers are instructed to contact the Product Quality Center to order an engine assembly.

  Associated Products (2)

  2027 Chevrolet Silverado2027 GMC Sierra
  Associated Documents

  • DownloadMC-11038589-0001.pdf↗
• October 5, 2026•Document ID: 11038139

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6477D

  Date Added:

  October 6, 2026

  Manufacturer:

  CADILLAC

  Summary

  This preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool

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  Associated Documents

  • DownloadMC-11038139-0001.pdf↗
• October 2, 2026•Document ID: 11038164

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6554

  Date Added:

  October 6, 2026

  Manufacturer:

  CADILLAC

  Summary

  This preliminary information is to help technicians decide if the DTC needs to be diagnosed if relating to the concern and if it is not, the DTC can be ignored.

  Associated Products (18)

  2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Chevrolet Silverado2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 GMC Hummer EV Pickup2027 GMC Hummer EV SUV2027 GMC Sierra2027 GMC Yukon2027 GMC Yukon XL2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11038164-0001.pdf↗
• September 28, 2026•Document ID: 11038136

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6457C

  Date Added:

  October 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.

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  Associated Documents

  • DownloadMC-11038136-0001.pdf↗
• September 28, 2026•Document ID: 11038132

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540K

  Date Added:

  October 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (173)

  2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL+ 153 more
  Associated Documents

  • DownloadMC-11038132-0001.pdf↗
• September 28, 2026•Document ID: 11037797

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368E

  Date Added:

  October 2, 2026

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.

  Associated Products (63)

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  Associated Documents

  • DownloadMC-11037797-0001.pdf↗
• September 26, 2026•Document ID: 11037555

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5698F

  Date Added:

  September 30, 2026

  Manufacturer:

  CADILLAC

  Summary

  This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

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  Associated Documents

  • DownloadMC-11037555-0001.pdf↗