• Improvements to the availability of driver assistance features
Chevrolet technical service bulletin 661.20 for 2025 Chevrolet Equinox and 2025 GMC Terrain.
- Bulletin number
- 661.20 (661.20)
- Component
- Unknown or other
- Summary
- • Improvements to the availability of driver assistance features. • 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.
Vehicles covered
- Chevrolet Equinox 2025 2025
- GMC Terrain 2025 2025
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