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Service bulletins for the 2023 Cadillac XT4

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

488 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Bulletins, newest first
20-NA-1322024-11-09. Service bulletin. ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
23-NA-2192024-11-05. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY. This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
23-NA-0642024-11-05. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
20-NA-1382024-11-05. Service bulletin. POWER TRAIN; ENGINE. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
04-06-04-051J2024-10-31. Service bulletin. ENGINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
04-06-04-051J2024-10-31. Service bulletin. ENGINE. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
24-NA-2072024-10-31. Service bulletin. STRUCTURE:BODY. This technical bulletin provides a procedure to correct the condition of Excessive Waviness, Wrinkling or Sag in the Sunroof Sunshade.
PIE0782A2024-10-29. Service bulletin. ENGINE. This engineering information (EI Lite) closure ends the need for technicians to submit pictures using the FPR App process in regard to coolant leaking around the Coolant Control Valve (CCV).
PIP6007A2024-10-25. Service bulletin. ENGINE. 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.
08-07-30-026I2024-10-24. Service bulletin. POWER TRAIN. This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
PIP60072024-10-22. Service bulletin. ENGINE. 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.
18-NA-1462024-10-22. Service bulletin. UNKNOWN OR OTHER. This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
07-00-89-036K2024-10-22. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.
02-00-89-002X2024-10-17. Service bulletin. UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
18-NA-0732024-10-11. Service bulletin. ENGINE. 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.
24-NA-1742024-10-10. Service bulletin. UNKNOWN OR OTHER. The bulletin provides direction on how to locate the Temporary Service Part (TSP) form in GlobalConnect.
24-NA-1642024-09-25. Service bulletin. VISIBILITY/WIPER. This bulletin provides information on Wiper Blade Maintenance Tips.
24-NA-1392024-09-25. Service bulletin. FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This bulletin provides a procedure to replace the FPDCM if found to cause customers concerns of Crank No Start, Stalling, Loss of Power, Fuel Gauge Inoperative/Erratic, MIL Illuminated - DTC P023F and/or P129F Set.
05-03-08-002J2024-09-20. Service bulletin. SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
05-03-08-002J2024-09-20. Service bulletin. SUSPENSION. This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
PIT62172024-09-11. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, GM is aware and will release a bulletin for the update once available.
23-NA-0442024-09-11. Service bulletin. ELECTRICAL SYSTEM; ENGINE. This service bulletin provides information on AGM batteries that require less frequent charging in storage.
19-NA-2372024-09-11. Service bulletin. ENGINE. This service bulletin explains how to identify possible DEF system contamination.
PIP5964D2024-09-06. Service bulletin. ENGINE. This Preliminary information communicates a vehicle may come to the dealer with a complaint of no start, stalling, rough idle, no acceleration, loss of power, erratic shifting, fuel gauge inoperative, MIL illuminated with various codes stored. Technicians are directed to replace the K111FPDCM if any of these conditions can be validated and code P023F or P129F is found.
PIT3271P2024-09-06. Service bulletin. UNKNOWN OR OTHER. This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.