Cadillac CT4 Service Bulletins (2025)

237 manufacturer communications on file.

• December 6, 2024•Document ID: 11011694

  Service Bulletin/Repair Instructions
  LANE DEPARTURE: ASSIST; UNKNOWN OR OTHER; LANE DEPARTURE: WARNING

  Mfr Comm. #:

  PIC6587

  Date Added:

  December 9, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates Thus the active safety systems maybe inoperable and to perform a module reset to correct.

  Associated Products (92)

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  Associated Documents

  • DownloadMC-11011694-0001.pdf↗
• December 6, 2024•Document ID: 11011693

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; LANE DEPARTURE: WARNING; LANE DEPARTURE: ASSIST

  Mfr Comm. #:

  PIC6552D

  Date Added:

  December 9, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates how to recover the Image Processing Module.

  Associated Products (92)

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  Associated Documents

  • DownloadMC-11011693-0001.pdf↗
• November 27, 2024•Document ID: 11012009

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  24-NA-264

  Date Added:

  December 20, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin helps aid the tech in possible transmission noise that may be normal or abnormal depending on the concern noted.

  Associated Products (42)

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  Associated Documents

  • DownloadMC-11012009-0001.pdf↗
• November 27, 2024•Document ID: 11012003

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; VISIBILITY/WIPER

  Mfr Comm. #:

  24-NA-259

  Date Added:

  December 20, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a service procedure to correct customer concerns of Air Conditioning (A/C) Not Working and/or Blows Warm Air.

  Associated Products (60)

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  Associated Documents

  • DownloadMC-11012003-0001.pdf↗
• November 27, 2024•Document ID: 11011989

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-035I

  Date Added:

  December 19, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the harmful effects of ethylene glycol in transmission fluid.

  Associated Products (156)

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  Associated Documents

  • DownloadMC-11011989-0001.pdf↗
• November 25, 2024•Document ID: 11011996

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-238

  Date Added:

  December 19, 2024

  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 (168)

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  Associated Documents

  • DownloadMC-11011996-0001.pdf↗
• November 22, 2024•Document ID: 11011900

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  19-NA-219

  Date Added:

  December 17, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

  Associated Products (155)

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  Associated Documents

  • DownloadMC-11011900-0001.pdf↗
• November 8, 2024•Document ID: 11011212

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6265A

  Date Added:

  December 4, 2024

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (45)

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  Associated Documents

  • DownloadMC-11011212-0001.pdf↗
• November 5, 2024•Document ID: 11011709

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ENGINE; STRUCTURE:BODY; WHEELS; UNKNOWN OR OTHER

  Mfr Comm. #:

  21-NA-043

  Date Added:

  December 10, 2024

  Manufacturer:

  BUICK

  Summary

  This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.

  Associated Products (168)

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  Associated Documents

  • DownloadMC-11011709-0001.pdf↗
• November 4, 2024•Document ID: 11011858

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  24-NA-247

  Date Added:

  December 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the technician of which pan to use if the LCE has been replaced and to install an aluminum pan should be used with a new LCE.

  Associated Products (9)

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  Associated Documents

  • DownloadMC-11011858-0001.pdf↗
• October 28, 2024•Document ID: 11011476

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5985F

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.

  Associated Products (62)

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  Associated Documents

  • DownloadMC-11011476-0001.pdf↗
• October 28, 2024•Document ID: 11011475

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5832R

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (59)

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  Associated Documents

  • DownloadMC-11011475-0001.pdf↗
• October 28, 2024•Document ID: 11011367

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-239

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.

  Associated Products (123)

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  Associated Documents

  • DownloadMC-11011367-0001.pdf↗
• October 28, 2024•Document ID: 11011205

  Service Bulletin/Repair Instructions
  STEERING; POWER TRAIN; ENGINE

  Mfr Comm. #:

  04-06-01-029K

  Date Added:

  December 4, 2024

  Manufacturer:

  GMC

  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: 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:

  BUICK

  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 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 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 (168)

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  Associated Documents

  • DownloadMC-11010576-0001.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↗