Cadillac CT4 Service Bulletins

1,208 manufacturer communications on file.

• April 30, 2024•Document ID: 11000162

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001J

  Date Added:

  May 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  Associated Products (920)

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  Associated Documents

  • DownloadMC-11000162-0001.pdf↗
• April 30, 2024•Document ID: 11000160

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  10-08-110-001K

  Date Added:

  May 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on proper use of floor mats.

  Associated Products (757)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT5+ 737 more
  Associated Documents

  • DownloadMC-11000160-0001.pdf↗
• April 29, 2024•Document ID: 10253680

  Service Bulletin/Repair Instructions
  STEERING; UNKNOWN OR OTHER

  Mfr Comm. #:

  N242440670

  Date Added:

  April 29, 2024

  Manufacturer:

  CADILLAC

  Summary

  Service Update - Certain vehicles may have a condition in which the tie rod jam nut may be below torque specification. Dealers will perform a front wheel toe set alignment and tighten both jam nuts to spec.

  Associated Products (2)

  2024 Cadillac CT42024 Cadillac CT5
  Associated Documents

  • DownloadMC-10253680-0001.pdf↗
• April 26, 2024•Document ID: 11000157

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-125

  Date Added:

  May 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.

  Associated Products (341)

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  Associated Documents

  • DownloadMC-11000157-0001.pdf↗
• April 26, 2024•Document ID: 11000120

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  18-NA-279

  Date Added:

  May 15, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (119)

  2023 BrightDrop Zevo2023 Buick Enclave2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Buick Enclave+ 99 more
  Associated Documents

  • DownloadMC-11000120-0001.pdf↗
• April 26, 2024•Document ID: 11000119

  Service Bulletin/Repair Instructions
  ENGINE; POWER TRAIN; SUSPENSION

  Mfr Comm. #:

  15-00-89-004G

  Date Added:

  May 15, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

  Associated Products (814)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT4+ 794 more
  Associated Documents

  • DownloadMC-11000119-0001.pdf↗
• April 18, 2024•Document ID: 10253770

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  00-03-10-006P

  Date Added:

  May 1, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

  Associated Products (803)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 783 more
  Associated Documents

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• April 16, 2024•Document ID: 10254014

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-064

  Date Added:

  May 2, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

  Associated Products (199)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 179 more
  Associated Documents

  • DownloadMC-10254014-0001.pdf↗
• April 12, 2024•Document ID: 10253725

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-038

  Date Added:

  May 1, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.

  Associated Products (114)

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• April 10, 2024•Document ID: 10253527

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  20-NA-132

  Date Added:

  April 23, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (630)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 610 more
  Associated Documents

  • DownloadMC-10253527-0001.pdf↗
• April 8, 2024•Document ID: 10253526

  Service Bulletin/Repair Instructions
  EQUIPMENT; WHEELS

  Mfr Comm. #:

  17-NA-052

  Date Added:

  April 23, 2024

  Manufacturer:

  CADILLAC

  Summary

  This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

  Associated Products (579)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 559 more
  Associated Documents

  • DownloadMC-10253526-0001.pdf↗
• March 28, 2024•Document ID: 10252735

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  10-08-45-001H

  Date Added:

  April 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.

  Associated Products (1065)

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• March 26, 2024•Document ID: 10252774

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  20-NA-132

  Date Added:

  April 5, 2024

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (631)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 611 more
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  • DownloadMC-10252774-0001.pdf↗
• March 25, 2024•Document ID: 10252778

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-281

  Date Added:

  April 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides diagnostic information for technicians in cases of an ETRS system fault or a no start condition - If the vehicle needs to be moved, it is recommended to use wheel dollies, tire skates or the NEW Manual Park Release tool DT-52910.

  Associated Products (37)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac CT4+ 17 more
  Associated Documents

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• March 21, 2024•Document ID: 10252126

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  23-NA-103

  Date Added:

  March 29, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC).

  Associated Products (640)

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• March 20, 2024•Document ID: 10252123

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

  Mfr Comm. #:

  24-NA-060

  Date Added:

  March 29, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides repair information to correct a customer concerns of Radio Software issues.

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  • DownloadMC-10252123-0001.pdf↗
• March 13, 2024•Document ID: 10251904

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  22-NA-028

  Date Added:

  March 19, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a repair procedure to correct a customer concern of a Whining/Whirring, Whistle, Squeaking, Groaning/Growling Noise Coming from Front Wheel/Engine Area.

  Associated Products (14)

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  Associated Documents

  • DownloadMC-10251904-0001.pdf↗
• March 13, 2024•Document ID: 10251890

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  16-NA-383

  Date Added:

  March 19, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

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• March 11, 2024•Document ID: 10253075

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  PIT5832L

  Date Added:

  April 15, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

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• March 11, 2024•Document ID: 10251888

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  07-00-89-037S

  Date Added:

  March 19, 2024

  Manufacturer:

  CADILLAC

  Summary

  This warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.

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  • DownloadMC-10251888-0001.pdf↗