•Improvements to the performance of Super Cruise
GMC technical service bulletin 653.40 for 2024 GMC Hummer EV SUV and 2024 GMC Hummer EV Pickup.
- Bulletin number
- 653.40 (653.40)
- Component
- Unknown or other
- Summary
- •Improvements to the performance of Super Cruise. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Vehicles covered
- GMC Hummer EV SUV 2024 2024
- GMC Hummer EV Pickup 2024 2024
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