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Service bulletin N23-240448

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 id10240714
Published by NHTSA2023-08-14
Manufacturer's numberN23-240448
Manufacturer's date2023-08-09
NHTSA componentBACK OVER PREVENTION:SOFTWARE

NHTSA's summary

'(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: •Updates made to the long range radar functionality to enhance alignment during height changes when parking. •Updates made to the horn functionality during towing for a more intuitive and user-friendly operation. •Updates made to improve connectivity within Apple Carplay, Bluetooth & SiriusXM. •Updates made to the gearshift functionality to provide a smoother experience while shifting gears. •Updates made to the Super Cruise driver assistance technology and the Adaptive Cruise Control functionality for an improved performance and smoother driving experience. •A variety of other minor software updates to make your driving and in-vehicle experience better. Better Never Stops™

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

Driver assistance, Backup camera

Vehicles listed
GMC HUMMER EV PICKUP2023

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
PIT6044F2024-01-29. 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.
PIT6044E2023-12-04. 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.
PIT6044A2023-09-18. 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.
PIT60442023-09-18. 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.
PIT5832H2023-06-13. 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.