This update contains a required software change to help improve the overall software update and...
GMC technical service bulletin 663.10 for 2024-2026 GMC Hummer EV SUV and 2024-2026 GMC Hummer EV Pickup.
- Bulletin number
- 663.10 (663.10)
- Component
- Unknown or other
- Summary
- This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior.
Vehicles covered
- GMC Hummer EV SUV 2024-2026 202420252026
- GMC Hummer EV Pickup 2024-2026 202420252026
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