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Over-the-air update 661.50

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)
TypeOver-the-air update
NHTSA id11031768
Published by NHTSA2026-04-30
Manufacturer's number661.50
Manufacturer's date2026-04-01
Campaign id or software version661.50
NHTSA componentUNKNOWN OR OTHER
Manufacturer's systemVCU, ACP3, AMP, AOS, RDCM, EBCM, BCM, SRR, LRR, PFCM, PTM: VCU, ACP3, AMP, AOS, RDCM, EBCM, BCM, SRR, LRR, PFCM, PTM

NHTSA's summary

• Surround Vision Recorder, a new feature that allows you to record, watch, and save video from your vehicle's cameras. • Security Recording, a new feature that can automatically begin recording if your vehicle's alarm is triggered while it is parked. • Fixes to help ensure responsiveness for the driver display and rear view camera. • Fixes to help ensure proper Super Cruise lane change functionality. • Improvements to the performance of Bose AudioPilot to better counteract road and ambient noise. • Your towing experience is improving by preventing enabling King Crab mode when a trailer is attached. • When towing a trailer, you will now experience less trailer sway. • This update will help prevent One-Pedal Driving from deactivating after you remote start your vehicle. • Fixes to help ensure successful vehicle software updates. • Improvements to performance for under-hood storage opening. • Fixes to help ensure the swing gate opens and closes properly. • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features.

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.

Vehicles listed
GMC HUMMER EV PICKUP2026
GMC HUMMER EV SUV2026

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