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Service bulletin PIT6055B

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 id10251726
Published by NHTSA2024-03-18
Manufacturer's numberPIT6055B
Manufacturer's date2024-02-29
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

This Preliminary information communicates to the field on how to clear the Service Drivers Assist message with new software that is now available.

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
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.
PIT6044D2023-12-04. Service bulletin. This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.
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™
PIT60052023-05-15. Service bulletin. This Preliminary information communicates of a software concern that General Motors is working on a fix for
PIT60042023-05-15. Service bulletin. This Preliminary information communicates a software anomaly that will display a message for a option that the vehicle is not equipped with and a software update will be released soon to address that issue.
PIT5832D2022-12-12. Service bulletin. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT5832C2022-10-17. Service bulletin. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
PIT59442022-10-17. Service bulletin. This Preliminary information communicates to the field how to address a condition that was caused by a over the air update.