# Over\-the\-air update 661.30

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.

- Type: Over\-the\-air update
- NHTSA id: 11031766
- Published by NHTSA: 2026\-04\-30
- Manufacturer's number: 661.30
- Manufacturer's date: 2026\-04\-01
- Campaign id or software version: 661.30
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: AMP, AOS, RDCM, BCM, EBCM, LRR, SRR, PFCM, PTM: AMP, AOS, RDCM, BCM, EBCM, LRR, SRR, PFCM, PTM

## NHTSA's summary

• Improvements to the performance of Bose AudioPilot to better counteract road and ambient noise. • Your towing experience is improving by preventing enablement of 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 proper functionality for Brake Assist. • 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031766-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11031766-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Vehicles listed

- 2026 GMC HUMMER EV PICKUP
- 2026 GMC HUMMER EV SUV

JSON: [/v1/bulletins/11031766](/v1/bulletins/11031766)

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