Cadillac Lyriq Service Bulletins

1,019 manufacturer communications on file.

• September 8, 2025•Document ID: 11023141

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6619

  Date Added:

  September 16, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates how to repair HVAC case leak

  Associated Products (1)

  2025 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11023141-0001.pdf↗
• September 8, 2025•Document ID: 11023146

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6607A

  Date Added:

  September 16, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history - U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.

  Associated Products (13)

  2026 Buick Enclave2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11023146-0001.pdf↗
• September 8, 2025•Document ID: 11023143

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6431

  Date Added:

  September 16, 2025

  Manufacturer:

  GMC

  Summary

  This preliminarily information communication an issue with the supercruise dropping out when next to a merging lane and engineering is investigating.

  Associated Products (11)

  2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11023143-0001.pdf↗
• September 5, 2025•Document ID: 11023032

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6424A

  Date Added:

  September 9, 2025

  Manufacturer:

  GMC

  Summary

  A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.

  Associated Products (14)

  2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Vistiq2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Celestiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11023032-0001.pdf↗
• September 4, 2025•Document ID: 11024324

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-NA-180

  Date Added:

  October 16, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.

  Associated Products (22)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 Cadillac Lyriq2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 GMC Hummer EV Pickup2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV+ 2 more
  Associated Documents

  • DownloadMC-11024324-0001.pdf↗
• August 30, 2025•Document ID: 11022777

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6617

  Date Added:

  September 5, 2025

  Manufacturer:

  CADILLAC

  Summary

  PI is created to advise dealer of an issue that may have been induced by OTA programming

  Associated Products (1)

  2026 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022777-0001.pdf↗
• August 30, 2025•Document ID: 11022776

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6617

  Date Added:

  September 5, 2025

  Manufacturer:

  CADILLAC

  Summary

  PI is created to advise dealer of an issue that may have been induced by OTA programming

  Associated Products (11)

  2025 Cadillac Celestiq2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Tahoe2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022776-0001.pdf↗
• August 28, 2025•Document ID: 11022779

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6583G

  Date Added:

  September 5, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates how to move U018B from Current to History.

  Associated Products (3)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022779-0001.pdf↗
• August 28, 2025•Document ID: 11021284

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIC6578C

  Date Added:

  August 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates procedure to relearn window motor when it reverses when expressing up.

  Associated Products (3)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11021284-0001.pdf↗
• August 27, 2025•Document ID: 11022781

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6583F

  Date Added:

  September 5, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates how to move U018B from Current to History.

  Associated Products (11)

  2025 Cadillac Celestiq2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Tahoe2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022781-0001.pdf↗
• August 26, 2025•Document ID: 11022155

  Service Campaign
  WHEELS; UNKNOWN OR OTHER

  Mfr Comm. #:

  N252494250

  Date Added:

  August 26, 2025

  Manufacturer:

  CHEVROLET

  Summary

  Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.

  Associated Products (10)

  2026 Cadillac Lyriq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Tahoe2025 Chevrolet Trailblazer2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2024 Chevrolet Trailblazer2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022155-0001.pdf↗
• August 23, 2025•Document ID: 11022140

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6583E

  Date Added:

  August 26, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates how to move U018B from Current to History.

  Associated Products (10)

  2025 Cadillac Celestiq2025 Cadillac Escalade2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Tahoe2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022140-0001.pdf↗
• August 22, 2025•Document ID: 11022138

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6236B

  Date Added:

  August 26, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the active safety features and/or cameras are inoperative or unavailable after a 12 volt battery replacement or battery charge after a low voltage condition.

  Associated Products (27)

  2026 Buick Enclave2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Tahoe2025 Chevrolet Traverse+ 7 more
  Associated Documents

  • DownloadMC-11022138-0001.pdf↗
• August 21, 2025•Document ID: 11022134

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6424

  Date Added:

  August 26, 2025

  Manufacturer:

  CADILLAC

  Summary

  A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.

  Associated Products (14)

  2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Vistiq2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Celestiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022134-0001.pdf↗
• August 19, 2025•Document ID: 11022130

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6423

  Date Added:

  August 26, 2025

  Manufacturer:

  GMC

  Summary

  Diagnostic Guidance for U3000-97 Long Range Radar Blocked

  Associated Products (29)

  2026 Buick Enclave2026 Cadillac CT52026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Equinox+ 9 more
  Associated Documents

  • DownloadMC-11022130-0001.pdf↗
• August 15, 2025•Document ID: 11022086

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6368B

  Date Added:

  August 22, 2025

  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 (30)

  2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq+ 10 more
  Associated Documents

  • DownloadMC-11022086-0001.pdf↗
• August 14, 2025•Document ID: 11022084

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902T

  Date Added:

  August 22, 2025

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (207)

  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 Colorado2026 Chevrolet Equinox+ 187 more
  Associated Documents

  • DownloadMC-11022084-0001.pdf↗
• August 14, 2025•Document ID: 11022081

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6511B

  Date Added:

  August 22, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a front license plate frame may cause interference with the park assist sensors.

  Associated Products (7)

  2025 Cadillac Lyriq2025 Chevrolet Traverse2025 GMC Acadia2024 Cadillac Lyriq2024 Chevrolet Traverse2024 GMC Acadia2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11022081-0001.pdf↗
• August 8, 2025•Document ID: 11022074

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6394B

  Date Added:

  August 22, 2025

  Manufacturer:

  GMC

  Summary

  A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.

  Associated Products (24)

  2026 Cadillac Vistiq2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Terrain2025 GMC Yukon2025 GMC Yukon XL2024 Buick Enclave2024 Cadillac Lyriq2024 Cadillac XT4+ 4 more
  Associated Documents

  • DownloadMC-11022074-0001.pdf↗
• August 8, 2025•Document ID: 11022068

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6059C

  Date Added:

  August 22, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera.

  Associated Products (172)

  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 Colorado2026 Chevrolet Equinox+ 152 more
  Associated Documents

  • DownloadMC-11022068-0001.pdf↗