Cadillac CT4 Service Bulletins

1,009 manufacturer communications on file.

• October 28, 2024•Document ID: 11011205

  Service Bulletin/Repair Instructions
  ENGINE; STEERING; POWER TRAIN

  Mfr Comm. #:

  04-06-01-029K

  Date Added:

  December 4, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.

  Associated Products (155)

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  Associated Documents

  • DownloadMC-11011205-0001.pdf↗
• October 25, 2024•Document ID: 11009170

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5698E

  Date Added:

  October 25, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.

  Associated Products (53)

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  Associated Documents

  • DownloadMC-11009170-0001.pdf↗
• October 25, 2024•Document ID: 11009150

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP6007A

  Date Added:

  October 25, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the potential for dtc P2B81 to be set as current or in history due to increased friction in the wastegate valve.

  Associated Products (35)

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  Associated Documents

  • DownloadMC-11009150-0001.pdf↗
• October 24, 2024•Document ID: 11011462

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

  Mfr Comm. #:

  PIC6582

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a Service Drivers Assist message with Super Cruise inop and a U1624 May be found and that Engineering is working on a resolution.

  Associated Products (1)

  2025 Cadillac CT4
  Associated Documents

  • DownloadMC-11011462-0001.pdf↗
• October 24, 2024•Document ID: 11011465

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6265

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealership technicians that if they encounter a vehicle with this issue, they can contact TCSC to have the software for the MDI backdated to communicate properly.

  Associated Products (39)

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  Associated Documents

  • DownloadMC-11011465-0001.pdf↗
• October 22, 2024•Document ID: 11011454

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP6018

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to technicians inspection for an incorrectly machined fluid passage in the valve body causing DTC P0841.

  Associated Products (10)

  2024 Cadillac CT42024 Chevrolet Colorado2024 GMC Canyon2024 GMC Savana2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Express2023 GMC Canyon2023 GMC Savana
  Associated Documents

  • DownloadMC-11011454-0001.pdf↗
• October 22, 2024•Document ID: 11009057

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP6007

  Date Added:

  October 22, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the potential for dtc P2B81 to be set as current or in history due to increased friction in the wastegate valve.

  Associated Products (26)

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  Associated Documents

  • DownloadMC-11009057-0001.pdf↗
• 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 (3)

  2023 Cadillac CT42022 Cadillac CT42021 Cadillac CT4
  Associated Documents

  • DownloadMC-11008982-0001.pdf↗
• October 18, 2024•Document ID: 11008986

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5569C

  Date Added:

  October 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.

  Associated Products (53)

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  Associated Documents

  • DownloadMC-11008986-0001.pdf↗
• October 17, 2024•Document ID: 11010901

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-229

  Date Added:

  December 2, 2024

  Manufacturer:

  BUICK

  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 (122)

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  Associated Documents

  • DownloadMC-11010901-0001.pdf↗
• October 16, 2024•Document ID: 11011444

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6015

  Date Added:

  December 5, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the dealer a process for accessing the procedure to add attachments to a GM technical assistance case using the dealer case management tool.

  Associated Products (51)

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  Associated Documents

  • DownloadMC-11011444-0001.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:

  GMC

  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 (168)

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  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:

  GMC

  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 (20)

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  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 (13)

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  Associated Documents

  • DownloadMC-11010574-0001.pdf↗
• October 9, 2024•Document ID: 11010562

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  17-NA-239

  Date Added:

  November 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time.

  Associated Products (13)

  2025 Chevrolet Corvette2024 Chevrolet Camaro2024 Chevrolet Corvette2023 Chevrolet Camaro2023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Camaro2022 Chevrolet Corvette2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Camaro2021 Chevrolet Corvette
  Associated Documents

  • DownloadMC-11010562-0001.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:

  CADILLAC

  Summary

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

  Associated Products (168)

  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 Tahoe+ 148 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 (156)

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  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:

  GMC

  Summary

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

  Associated Products (143)

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  Associated Documents

  • DownloadMC-11010490-0001.pdf↗
• October 4, 2024•Document ID: 11011420

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5621E

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer  technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.

  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 Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse2022 Chevrolet Trax+ 31 more
  Associated Documents

  • DownloadMC-11011420-0001.pdf↗
• October 3, 2024•Document ID: 11010492

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-053

  Date Added:

  November 13, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (133)

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  Associated Documents

  • DownloadMC-11010492-0001.pdf↗