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Service bulletin PIT6044D

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 id10246021
Published by NHTSA2023-12-04
Manufacturer's numberPIT6044D
Manufacturer's date2023-10-26
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

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, Software

Vehicles listed
BRIGHTDROP ZEVO 6002023 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC LYRIQ2023
CADILLAC redundant LYRIQ2024
GMC HUMMER EV PICKUP2022, 2023
GMC HUMMER EV SUV2024

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
20-NA-1322024-04-05. Service bulletin. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
N2324285402024-04-03. Service bulletin. Customer Satisfaction Program - Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
N2324285402024-03-20. Service bulletin. Customer Satisfaction Program: Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
PIP5957A2024-03-18. Service bulletin. This Preliminary information communicates to the dealer of a possible issue with the vehicle is that the code was set in error and will need a reset procedure performed to verify. This PI outlines the path the dealer is to take to verify that the vehicle can be repaired with this procedure to prevent unnecessary parts replacement and time in service.
PIT6055B2024-03-18. Service bulletin. This Preliminary information communicates to the field on how to clear the Service Drivers Assist message with new software that is now available.
PIC6498A2024-03-18. Service bulletin. This concise summary was created to advise of engineering investigation to address Error 302 when accessing the Energy APP.
N2324285402024-03-14. Service bulletin. Customer Satisfaction Program: Certain vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.
23-NA-1732023-10-18. Service bulletin. This service bulletin provides repair information to correct customer concerns of Radio Software issues.
N23-2404302023-09-08. Service bulletin. '(There may be future updates under this same release number.) Your Cadillac LYRIQ keeps getting better. This vehicle software update includes the following: Refinements: •Updates made to the rear camera functionality to help improve accuracy and functionality. •A variety of other minor software updates to help make your driving and in-vehicle experience better. Better Never Stops™
N23-2404482023-08-24. Service bulletin. (There may be future updates under this same release number.) Your GMC Hummer EV keeps getting better. This software update includes the following if your vehicle is equipped: Refinements: •A variety of other minor software updates to make your driving and in-vehicle experience better. Better Never Stops™