Great News! Your vehicle keeps getting better
Chevrolet technical service bulletin 18.50 for 2026 Chevrolet Equinox and 2026 GMC Terrain.
- Bulletin number
- 18.50 (18.50)
- Component
- Unknown or other
- Summary
- Great News! Your vehicle keeps getting better. 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 when an update package is onboard the vehicle. Do not service your vehicle during installation.
Vehicles covered
- Chevrolet Equinox 2026 2026
- GMC Terrain 2026 2026
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