• Fixes to help ensure successful vehicle software updates • Improvements to the availability of driver...
Chevrolet technical service bulletin 661.40 for 2026 Chevrolet Silverado EV and 2026 GMC Sierra EV.
- Bulletin number
- 661.40 (661.40)
- Component
- Unknown or other
- Summary
- • Fixes to help ensure successful vehicle software updates • Improvements to the availability of driver assistance features
Vehicles covered
- Chevrolet Silverado EV 2026 2026
- GMC Sierra EV 2026 2026
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