• Improvements to the performance of Bose AudioPilot to better counteract road and ambient noise
GMC technical service bulletin 661.30 for 2026 GMC Hummer EV SUV and 2026 GMC Hummer EV Pickup.
- Bulletin number
- 661.30 (661.30)
- Component
- Unknown or other
- 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.
Vehicles covered
- GMC Hummer EV SUV 2026 2026
- GMC Hummer EV Pickup 2026 2026
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