Cadillac CT4 Service Bulletins (2022)

739 manufacturer communications on file.

• December 16, 2022•Document ID: 10228895

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-051

  Date Added:

  January 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information for dealers/technicians on Changes to Park Assist and Reverse Automatic Braking for Certain 2022 Passenger Car, Crossover, SUV, and Truck Models Equipped with RPO 00Y and/or 00Z.

  Associated Products (22)

  2022 Buick Enclave2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Trailblazer2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Canyon+ 2 more
  Associated Documents

  • DownloadMC-10228895-0001.pdf↗
• December 16, 2022•Document ID: 10227802

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM; SEATS

  Mfr Comm. #:

  N212354520

  Date Added:

  December 16, 2022

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. It has come to our attention that some vehicles involved in the heated vented seat retrofit may also be involved in Noncompliance recall N222386380. If the OTA update is completed prior to the heated vented seat retrofit, the customer may notice the heated vented seat switch now illuminates. This OTA update does not restore the heated vented seat functionality. Completion of Customer Satisfaction Program N212354520 through N212354525 are necessary to restore the functionality of the heated vented seats. We encourage working with customers to schedule appointments to complete this important Customer Satisfaction Program. Please verify a VIN's involvement in these field actions by checking in IVH. IVH is the best source for individual VIN inquiries.

  Associated Products (10)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10227802-0001.pdf↗
• December 15, 2022•Document ID: 10230697

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW:ELECTRICAL HEATING ELEMENT

  Mfr Comm. #:

  PIP5540J

  Date Added:

  January 30, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10230697-0001.pdf↗
• December 14, 2022•Document ID: 10228888

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21-NA-124

  Date Added:

  January 6, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.

  Associated Products (98)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 78 more
  Associated Documents

  • DownloadMC-10228888-0001.pdf↗
• December 14, 2022•Document ID: 10228886

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  18-NA-073

  Date Added:

  January 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

  Associated Products (98)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 78 more
  Associated Documents

  • DownloadMC-10228886-0001.pdf↗
• December 14, 2022•Document ID: 10227782

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  N212354520-03

  Date Added:

  December 15, 2022

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the front heated/ventilated seats, front heated seats, or rear heated seats are not functional on certain 2022-2023 model year vehicles listed above, built beginning November 15, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the front seat heater control module, reprogram the body control module and on some vehicles, reprogram the HVAC control module. Note: Some vehicles may also require an additional retrofit of the Left and Right Front Seat Cushion Ventilation Blower in order to restore full functionality of the ventilated seats. Vehicles built with this condition can be identified by RPO 04O. Use IVH to verify if the vehicle is currently eligible in the Front Seat Cushion Vent Blowers Retrofit bulletin N222378560. If so, both retrofits should be performed at the same time.

  Associated Products (25)

  2023 Buick Encore GX2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Trailblazer2022 Buick Enclave2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 5 more
  Associated Documents

  • DownloadMC-10227782-0001.pdf↗
• December 13, 2022•Document ID: 10228863

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN

  Mfr Comm. #:

  16-NA-338

  Date Added:

  January 5, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Admin service bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.

  Associated Products (88)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer+ 68 more
  Associated Documents

  • DownloadMC-10228863-0001.pdf↗
• December 12, 2022•Document ID: 10227769

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  N222378560-01

  Date Added:

  December 12, 2022

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the front driver and passenger seat cushion ventilation blowers are not functional on certain 2022-2023 model year vehicles listed above, built beginning March 30, 2022. Dealers are to replace the non-functional seat cushion ventilation blower with a functional one. Note: Some vehicles may also require the Heated/Ventilated Seat retrofit which must be performed prior to completing this procedure. Use IVH to verify if the vehicle is involved in the Heated/Ventilated Seats Retrofit (N212354520 or N212354522).

  Associated Products (14)

  2023 Buick Enclave2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT42023 Chevrolet Suburban2023 Chevrolet Traverse2023 GMC Acadia2022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Chevrolet Suburban2022 Chevrolet Traverse2022 GMC Acadia
  Associated Documents

  • DownloadMC-10227769-0001.pdf↗
• December 7, 2022•Document ID: 10228192

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  22-NA-244

  Date Added:

  December 21, 2022

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (96)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 76 more
  Associated Documents

  • DownloadMC-10228192-0001.pdf↗
• December 7, 2022•Document ID: 10227799

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

  Mfr Comm. #:

  22-NA-038

  Date Added:

  December 15, 2022

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (64)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 44 more
  Associated Documents

  • DownloadMC-10227799-0001.pdf↗
• December 6, 2022•Document ID: 10230685

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5863A

  Date Added:

  January 30, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealers? information related to a Malfunction Indicator Lamp (MIL) Illuminated due to a U0672 setting. Advises the technician to perform Electric Engine Coolant Pump connection inspections. To clear the code to see if it resets current. If the code resets it advises to utilize Strategy Based Diagnosis. If the code does not reset, it advises to release the vehicle to the customer and that GM is aware of this issue.

  Associated Products (2)

  2022 Cadillac CT42021 Cadillac CT4
  Associated Documents

  • DownloadMC-10230685-0001.pdf↗
• December 6, 2022•Document ID: 10228226

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  22-NA-247

  Date Added:

  December 24, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information to dealership personnel that after performing a brake inspection, brake pad replacement, or any other repair that requires the caliper piston to be reseated may be causing DTC C05B0 to falsely set for eBoost applications.

  Associated Products (51)

  2023 Buick Enclave2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Acadia2023 GMC Hummer EV Pickup2023 GMC Terrain2023 GMC Yukon2023 GMC Yukon XL2022 Buick Enclave+ 31 more
  Associated Documents

  • DownloadMC-10228226-0001.pdf↗
• December 6, 2022•Document ID: 10228190

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  22-NA-235

  Date Added:

  December 21, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using Samsung Phones at Offset Positions.

  Associated Products (52)

  2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia+ 32 more
  Associated Documents

  • DownloadMC-10228190-0001.pdf↗
• December 5, 2022•Document ID: 10230684

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5843A

  Date Added:

  January 30, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF  P30C7 P30CB Setting.

  Associated Products (2)

  2022 Cadillac CT42021 Cadillac CT4
  Associated Documents

  • DownloadMC-10230684-0001.pdf↗
• December 5, 2022•Document ID: 10230683

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIP5632G

  Date Added:

  January 30, 2023

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10230683-0001.pdf↗
• December 5, 2022•Document ID: 10228225

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  22-NA-246

  Date Added:

  December 23, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin advises the technician that the possible cause may not be from a faulty clutch piston or extension housing and to perform testing on transmission for possible other issues, but it still may be possible on high mile vehicles that orifices in housing may have come dislodged, causing the same customer concern.

  Associated Products (9)

  2022 Cadillac CT42022 Chevrolet Colorado2022 GMC Canyon2022 GMC Savana2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 GMC Canyon2021 GMC Savana
  Associated Documents

  • DownloadMC-10228225-0001.pdf↗
• December 2, 2022•Document ID: 10230682

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  PIP4902Q

  Date Added:

  January 30, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10230682-0001.pdf↗
• December 1, 2022•Document ID: 10227795

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-240

  Date Added:

  December 15, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the tech to validate if oil is leaking into the cooling system and to test and verify were to leak is coming from before replacing all the parts that wouldn't apply to the repair.

  Associated Products (28)

  2023 Buick Enclave2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Traverse2022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Traverse2022 GMC Canyon2021 Buick Enclave2021 Cadillac CT5+ 8 more
  Associated Documents

  • DownloadMC-10227795-0001.pdf↗
• November 30, 2022•Document ID: 10227401

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  22-NA-238

  Date Added:

  December 7, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.

  Associated Products (105)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 85 more
  Associated Documents

  • DownloadMC-10227401-0001.pdf↗
• November 29, 2022•Document ID: 10227676

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

  Mfr Comm. #:

  PIT5851C

  Date Added:

  December 12, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.

  Associated Products (24)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon XL2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV+ 4 more
  Associated Documents

  • DownloadMC-10227676-0001.pdf↗