Fixes to help prevent loss of functionality for OnStar, infotainment apps, and connectivity features
Chevrolet technical service bulletin 653.20 for 2026 Chevrolet Equinox and 2026 GMC Terrain.
- Bulletin number
- 653.20 (653.20)
- Component
- Unknown or other
- Summary
- Fixes to help prevent loss of functionality for OnStar, infotainment apps, and connectivity features. 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.
Vehicles covered
- Chevrolet Equinox 2026 2026
- GMC Terrain 2026 2026
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