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Service bulletin PIC6564A

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11011173
Published by NHTSA2024-12-04
Manufacturer's numberPIC6564A
Manufacturer's date2024-11-04
NHTSA componentELECTRICAL SYSTEM; UNKNOWN OR OTHER

NHTSA's summary

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.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
CADILLAC XT42024, 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
25-NA-2492025-10-21. Service bulletin. This service bulletin provides the correction to the condition of the Malfunction Indicator Lamp being illuminated and/or the DTC P149E set.
24-NA-1132025-06-16. Service bulletin. This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.
22-NA-2422025-06-16. Service bulletin. This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.
24-NA-2292025-06-03. Service bulletin. 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.
24-NA-1932025-06-03. Service bulletin. 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.
23-NA-2222025-05-07. Service bulletin. 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.
23-NA-1602025-05-07. Service bulletin. This service bulletin provides repair information to correct a customer concern of IVD Radio Software issues.
25-NA-0872025-05-02. Service bulletin. 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.
24-NA-1362025-05-02. Service bulletin. 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.
25-NA-0812025-04-29. Service bulletin. Some customers may comment on the park assist switch flashing and/or a ‘Service Side Detection’ DIC message.