• If you are equipped with Diesel engine then: Improvements to accuracy for Diesel Exhaust Fluid level...
Chevrolet technical service bulletin 661.20 for 2025 Chevrolet Silverado 2500 and 2025 GMC Sierra 2500.
- Bulletin number
- 661.20 (661.20)
- Component
- Unknown or other
- Summary
- • If you are equipped with Diesel engine then: Improvements to accuracy for Diesel Exhaust Fluid level shown in driver display.
Vehicles covered
- Chevrolet Silverado 2500 2025 2025
- GMC Sierra 2500 2025 2025
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