• Improvements to the availability of driver assistance features
Buick technical service bulletin 661.21 for 2025 Buick Envision.
- Bulletin number
- 661.21 (661.21)
- Component
- Unknown or other
- Summary
- • Improvements to the availability of driver assistance features. • Improvements to the performance of Automatic Emergency Braking and Adaptive Cruise Control braking. • Fixes to help ensure proper functionality of Forward Collision Alert and availability of driver assistance features.
Vehicles covered
- Buick Envision 2025 2025
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