Reduces unnecessary service messages, check engine light activations, and OnStar emergency calls from your...
GMC technical service bulletin 662.30 for 2025 GMC Hummer EV SUV and 2025 GMC Hummer EV Pickup.
- Bulletin number
- 662.30 (662.30)
- Component
- Unknown or other
- Summary
- Reduces unnecessary service messages, check engine light activations, and OnStar emergency calls from your vehicle.
Vehicles covered
- GMC Hummer EV SUV 2025 2025
- GMC Hummer EV Pickup 2025 2025
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