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Service bulletins for the 2024 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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
PIT6105C2025-02-18. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealership technicians that they will need to perform this step prior to performing any programming on replacement radios.
PIT63342025-02-18. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates if a customer and service tech encounter this concern, it will be fixed with a software update and the vehicle can still be driven in the meantime.
25-NA-0012025-02-18. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
24-NA-1932025-02-17. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides repair information on software release Update W52E-176.1.2-M170-SQBR5-250.2 to correct customer concern of radio software issues.
24-NA-0482025-02-17. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; SERVICE BRAKES. This service bulletin provides customer information for rear unwanted automatic braking, usually when reversing out of a garage or driveway.
23-NA-0642025-02-12. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. 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.
22-NA-2442025-02-12. Service bulletin. UNKNOWN OR OTHER; STRUCTURE:BODY. This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
22-NA-0742025-02-12. Service bulletin. ENGINE. This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.
21-NA-0432025-02-12. Service bulletin. VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. 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.
21-NA-1352025-02-12. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.
10-08-110-001L2025-02-11. Service bulletin. STRUCTURE:BODY; VEHICLE SPEED CONTROL. This service bulletin provides information on proper use of floor mats.
01-08-42-001Q2025-02-11. Service bulletin. EXTERIOR LIGHTING. This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.
24-NA-1932025-02-10. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides repair information on software release Update W52E-176.1.2-M170-SQBR5-250.2 to correct customer concern of radio software issues.
25-NA-0012025-02-06. Service bulletin. POWER TRAIN. This service bulletin provides repair information to correct a customer concern of a transmission fluid leak.
PIE0794D2025-01-31. Service bulletin. ENGINE. This engineering information (EI Lite) ends the need for gathering further information using the Field Product Reporting (FPR) App process for vehicles where customers comment on having oil leaking from the oil pan that drives a warrantable item type of repair on said vehicles.
24-NA-2392025-01-30. Service bulletin. ELECTRICAL SYSTEM; SEATS; STRUCTURE:BODY; STEERING; ENGINE. This informational bulletin provides a guide on how to diagnose and test for vibrations utilizing the PicoScope.
24-NA-1322025-01-30. Service bulletin. UNKNOWN OR OTHER. Warranty Administration - Claim Submission for Field Actions using Vehicle Wide Programming.
21-NA-2402025-01-30. Service bulletin. ENGINE. This service bulletin provides diagnostic repair information to correct an oil leak in the engine.
24-NA-1362025-01-24. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides repair information on new Radio Software Version is W38E-174.4.1-M170-SQBR5-180.5 to correct a customer concern of radio software issues.
24-NA-1132025-01-23. Service bulletin. ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
24-NA-1132025-01-23. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
09-06-04-026Z2025-01-23. Service bulletin. ENGINE; POWER TRAIN; ELECTRICAL SYSTEM. This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.
23-NA-2222025-01-23. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Radio Software issues and provide software (Version W26E-172.4.2-M169-SQBR4-123.4) Updates for IVD.
PIC6564B2025-01-20. Service bulletin. EXTERIOR LIGHTING. This Preliminary information communicates the direction a dealer/technician should take if a customer inquires about the installation of a trailer hitch or if the trailer lighting is inoperative for vehicles built without RPO option V92
PIT63172025-01-20. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates if a customer and service tech encounter a gear display after a radio update, to replace the A11 radio for this concern.

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