Cadillac XT4 Service Bulletins (2018)

220 manufacturer communications on file.

• May 15, 2025•Document ID: 11024485

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  23-NA-153

  Date Added:

  October 25, 2025

  Manufacturer:

  CHEVROLET

  Summary

  The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

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  Associated Documents

  • DownloadMC-11024485-0001.pdf↗
• May 7, 2025•Document ID: 11020254

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  15-NA-010

  Date Added:

  July 7, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.

  Associated Products (458)

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  Associated Documents

  • DownloadMC-11020254-0001.pdf↗
• April 18, 2025•Document ID: 11019503

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-100

  Date Added:

  June 12, 2025

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides policy information on vehicles outside of a California Emissions State who move to and register their vehicle in a California Emission State may be entitled to the 7 year, 70,000-mile Emission Select State Component Limited Warranty.

  Associated Products (344)

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  Associated Documents

  • DownloadMC-11019503-0001.pdf↗
• April 17, 2025•Document ID: 11019516

  Service Bulletin/Repair Instructions
  STEERING; SUSPENSION; POWER TRAIN

  Mfr Comm. #:

  PI0281L

  Date Added:

  June 12, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.

  Associated Products (507)

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  Associated Documents

  • DownloadMC-11019516-0001.pdf↗
• April 8, 2025•Document ID: 11017839

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037W

  Date Added:

  May 5, 2025

  Manufacturer:

  GMC

  Summary

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

  Associated Products (581)

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  Associated Documents

  • DownloadMC-11017839-0001.pdf↗
• April 3, 2025•Document ID: 11017595

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-087

  Date Added:

  May 2, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

  Associated Products (543)

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  Associated Documents

  • DownloadMC-11017595-0001.pdf↗
• March 31, 2025•Document ID: 11017244

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001K

  Date Added:

  April 25, 2025

  Manufacturer:

  CADILLAC

  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 (581)

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  Associated Documents

  • DownloadMC-11017244-0001.pdf↗
• March 25, 2025•Document ID: 11017263

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-052

  Date Added:

  April 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.

  Associated Products (518)

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  Associated Documents

  • DownloadMC-11017263-0001.pdf↗
• March 21, 2025•Document ID: 11017207

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-098

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

  Associated Products (464)

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  Associated Documents

  • DownloadMC-11017207-0001.pdf↗
• March 21, 2025•Document ID: 11017173

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; SERVICE BRAKES; STEERING

  Mfr Comm. #:

  25-NA-065

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.

  Associated Products (496)

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  Associated Documents

  • DownloadMC-11017173-0001.pdf↗
• March 14, 2025•Document ID: 11017016

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  08-03-10-006I

  Date Added:

  April 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a procedure on how to clean and resurface aluminum wheel bead seats for vehicles that have the condition of Tire Slowly Goes Flat, Tire Air Loss, Low Tire Pressure Warning Light Illuminated, Aluminum Wheel Bead Seat Corrosion.

  Associated Products (545)

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  Associated Documents

  • DownloadMC-11017016-0001.pdf↗
• March 12, 2025•Document ID: 11017031

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  15-06-03-001F

  Date Added:

  April 15, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.

  Associated Products (581)

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  Associated Documents

  • DownloadMC-11017031-0001.pdf↗
• March 5, 2025•Document ID: 11015567

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  17-NA-073

  Date Added:

  March 12, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

  Associated Products (548)

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  Associated Documents

  • DownloadMC-11015567-0001.pdf↗
• March 4, 2025•Document ID: 11016942

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  25-NA-052

  Date Added:

  April 10, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the technician to flush the cooling system multiple times if oil has been found in the cooling system and replace the parts that may be contaminated due to oil in system.

  Associated Products (546)

  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 Express2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban+ 526 more
  Associated Documents

  • DownloadMC-11016942-0001.pdf↗
• February 25, 2025•Document ID: 11015409

  Service Bulletin/Repair Instructions
  SUSPENSION; WHEELS

  Mfr Comm. #:

  05-03-07-009L

  Date Added:

  March 8, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.

  Associated Products (432)

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  Associated Documents

  • DownloadMC-11015409-0001.pdf↗
• February 22, 2025•Document ID: 11015387

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  11-00-89-005Y

  Date Added:

  March 8, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

  Associated Products (457)

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  Associated Documents

  • DownloadMC-11015387-0001.pdf↗
• February 20, 2025•Document ID: 11015382

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  05-08-51-001L

  Date Added:

  March 8, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.

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  Associated Documents

  • DownloadMC-11015382-0001.pdf↗
• February 18, 2025•Document ID: 11014577

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  16-NA-109

  Date Added:

  February 28, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.

  Associated Products (544)

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• February 13, 2025•Document ID: 11014563

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-037V

  Date Added:

  February 27, 2025

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (544)

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  Associated Documents

  • DownloadMC-11014563-0001.pdf↗
• January 31, 2025•Document ID: 11014230

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ENGINE; VISIBILITY/WIPER; ELECTRICAL SYSTEM; WHEELS

  Mfr Comm. #:

  21-NA-043

  Date Added:

  February 12, 2025

  Manufacturer:

  CHEVROLET

  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 (616)

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  Associated Documents

  • DownloadMC-11014230-0001.pdf↗