Cadillac Lyriq Service Bulletins (2023)

799 manufacturer communications on file.

• October 7, 2025•Document ID: 11024635

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.50

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to accuracy of Park Assist messaging. •Fixes to improve performance of driver assistance systems and rear view camera. •Improvements to responsiveness of rear view camera. •Fixes to address Super Cruise disengaging erroneously. 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)

  2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024635-0001.pdf↗
• October 4, 2025•Document ID: 11024437

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6621

  Date Added:

  October 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  This PI addresses a possible roll up then down window message.

  Associated Products (4)

  2026 Cadillac Lyriq2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024437-0001.pdf↗
• October 4, 2025•Document ID: 11024439

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6440

  Date Added:

  October 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.

  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-11024439-0001.pdf↗
• September 20, 2025•Document ID: 11023351

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6356C

  Date Added:

  September 26, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.

  Associated Products (32)

  2026 Cadillac Vistiq2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT62025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Cadillac Lyriq+ 12 more
  Associated Documents

  • DownloadMC-11023351-0001.pdf↗
• September 19, 2025•Document ID: 11023429

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.40

  Date Added:

  October 1, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to the performance of One-Pedal Driving •Improvements to propulsion and acceleration. •Fixes for vehicle diagnostics. •Improvements to the accuracy of propulsion messaging. •Improvements to vehicle safety features. 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)

  2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11023429-0001.pdf↗
• September 19, 2025•Document ID: 11023414

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.30

  Date Added:

  October 1, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to battery health information. •Fixes for efficiency when using fast charging stations. •Improvements to reliability for climate control and charging. •Improvements to the accuracy of efficiency values. •Improvements to shifting. •Fixes to protect battery health and adjust charge limits. 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)

  2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11023414-0001.pdf↗
• September 15, 2025•Document ID: 11023344

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6426

  Date Added:

  September 25, 2025

  Manufacturer:

  GMC

  Summary

  If a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.

  Associated Products (26)

  2026 Buick Enclave2026 Cadillac Escalade IQL2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia+ 6 more
  Associated Documents

  • DownloadMC-11023344-0001.pdf↗
• September 10, 2025•Document ID: 11023158

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6424B

  Date Added:

  September 17, 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 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-11023158-0001.pdf↗
• September 9, 2025•Document ID: 11023091

  Other
  UNKNOWN OR OTHER

  Mfr Comm. #:

  13598

  Date Added:

  September 10, 2025

  Manufacturer:

  CHEVROLET

  Summary

  New Vehicle Monitoring Programs Section in IVH

  Associated Products (208)

  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+ 188 more
  Associated Documents

  • DownloadMC-11023091-0001.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: 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↗