• Improvements to reliability when extending the running boards on your vehicle • Improvements to accuracy...
Chevrolet technical service bulletin 662.31 for 2025 Chevrolet Silverado 1500 and 2025 GMC Sierra 1500.
- Bulletin number
- 662.31 (662.31)
- Component
- Unknown or other
- Summary
- • Improvements to reliability when extending the running boards on your vehicle • Improvements to accuracy for Diesel Exhaust Fluid level shown in driver display.
Vehicles covered
- Chevrolet Silverado 1500 2025 2025
- GMC Sierra 1500 2025 2025
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