Cadillac CT4 Service Bulletins (2023)

554 manufacturer communications on file.

• October 18, 2024•Document ID: 11008982

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5921A

  Date Added:

  October 18, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the possibility of the Intake Cam Actuator cover plate screws backing out and making unwanted contact with the Cam Carrier.

  Associated Products (14)

  2023 Cadillac CT42023 Chevrolet Silverado2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-11008982-0001.pdf↗
• October 17, 2024•Document ID: 11010901

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-229

  Date Added:

  December 2, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.

  Associated Products (164)

  2025 Buick Enclave2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia+ 144 more
  Associated Documents

  • DownloadMC-11010901-0001.pdf↗
• October 11, 2024•Document ID: 11010576

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-040

  Date Added:

  November 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

  Associated Products (458)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 438 more
  Associated Documents

  • DownloadMC-11010576-0001.pdf↗
• October 10, 2024•Document ID: 11011436

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP6014

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates for Technicians installing a Service Replacement Transmission Assembly to contact Technical Assistance to make sure unit is not suspect of a snap ring concern prior to installation.

  Associated Products (85)

  2024 Cadillac CT42024 Chevrolet Express2024 GMC Savana2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Savana2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra+ 65 more
  Associated Documents

  • DownloadMC-11011436-0001.pdf↗
• October 9, 2024•Document ID: 11010574

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  24-NA-031

  Date Added:

  November 16, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for having brake pulsation and/or repeat brake pulsation.

  Associated Products (14)

  2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2024 Cadillac CT42024 Cadillac CT52024 Chevrolet Corvette2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Corvette2021 Chevrolet Corvette2020 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11010574-0001.pdf↗
• October 9, 2024•Document ID: 11010545

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  10-00-89-009F

  Date Added:

  November 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).

  Associated Products (663)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado+ 643 more
  Associated Documents

  • DownloadMC-11010545-0001.pdf↗
• October 5, 2024•Document ID: 11010493

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-244

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

  Associated Products (335)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado+ 315 more
  Associated Documents

  • DownloadMC-11010493-0001.pdf↗
• October 5, 2024•Document ID: 11010490

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  01-06-01-011Q

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (594)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe+ 574 more
  Associated Documents

  • DownloadMC-11010490-0001.pdf↗
• October 3, 2024•Document ID: 11010492

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-053

  Date Added:

  November 13, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories.

  Associated Products (147)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado+ 127 more
  Associated Documents

  • DownloadMC-11010492-0001.pdf↗
• October 3, 2024•Document ID: 11010488

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  99-00-89-019Z

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program.

  Associated Products (458)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 438 more
  Associated Documents

  • DownloadMC-11010488-0001.pdf↗
• October 3, 2024•Document ID: 11010422

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  13-03-10-001L

  Date Added:

  November 9, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on summer tire performance and tire cold weather cracking.

  Associated Products (51)

  2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2024 Cadillac CT42024 Cadillac CT52024 Chevrolet Camaro2024 Chevrolet Corvette2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Camaro2023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Camaro2022 Chevrolet Corvette2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Camaro2021 Chevrolet Corvette2020 Cadillac CT4+ 31 more
  Associated Documents

  • DownloadMC-11010422-0001.pdf↗
• October 3, 2024•Document ID: 11010421

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20-NA-132

  Date Added:

  November 9, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (651)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 631 more
  Associated Documents

  • DownloadMC-11010421-0001.pdf↗
• October 2, 2024•Document ID: 11010495

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  23-NA-154

  Date Added:

  November 13, 2024

  Manufacturer:

  BUICK

  Summary

  This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

  Associated Products (458)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 438 more
  Associated Documents

  • DownloadMC-11010495-0001.pdf↗
• October 2, 2024•Document ID: 11010491

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037T

  Date Added:

  November 13, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (666)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 646 more
  Associated Documents

  • DownloadMC-11010491-0001.pdf↗
• October 1, 2024•Document ID: 11011406

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

  Mfr Comm. #:

  PIT5551P

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

  Associated Products (237)

  2025 Buick Enclave2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax+ 217 more
  Associated Documents

  • DownloadMC-11011406-0001.pdf↗
• October 1, 2024•Document ID: 11008173

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N242441560

  Date Added:

  October 1, 2024

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Certain vehicles equipped with Super Cruise require high-definition road maps to be updated frequently. This ensures the vehicle is current with road changes and any additional Super Cruise approved mapped roads. Dealers will reprogram the automated driving mapping control module.

  Associated Products (21)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Silverado2024 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 Chevrolet Silverado+ 1 more
  Associated Documents

  • DownloadMC-11008173-0001.pdf↗
• September 27, 2024•Document ID: 11009532

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  04-06-04-051J

  Date Added:

  October 31, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

  Associated Products (631)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Trailblazer+ 611 more
  Associated Documents

  • DownloadMC-11009532-0001.pdf↗
• September 27, 2024•Document ID: 11009531

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  04-06-04-051J

  Date Added:

  October 31, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.

  Associated Products (795)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Trailblazer+ 775 more
  Associated Documents

  • DownloadMC-11009531-0001.pdf↗
• September 26, 2024•Document ID: 11009461

  Service Bulletin/Repair Instructions
  WHEELS; SUSPENSION

  Mfr Comm. #:

  17-NA-087

  Date Added:

  October 29, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.

  Associated Products (66)

  2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2024 Cadillac CT42024 Cadillac CT52024 Chevrolet Camaro2024 Chevrolet Corvette2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Camaro2023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Camaro2022 Chevrolet Corvette2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Camaro2021 Chevrolet Corvette2020 Cadillac CT4+ 46 more
  Associated Documents

  • DownloadMC-11009461-0001.pdf↗
• September 21, 2024•Document ID: 11009764

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; STRUCTURE:BODY

  Mfr Comm. #:

  23-NA-219

  Date Added:

  November 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

  Associated Products (648)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 628 more
  Associated Documents

  • DownloadMC-11009764-0001.pdf↗