This technical bulletin provides a procedure to install a pice of foam between the heater core pipes to...
Chevrolet technical service bulletin 21-NA-097 for 2015-2018 Chevrolet Silverado 1500, 2015-2018 GMC Sierra 1500 and 2019-2022 Chevrolet Silverado 2500 and others.
- Bulletin number
- 21-NA-097
- Component
- Visibility: defroster/defogger/HVAC system
- Summary
- This technical bulletin provides a procedure to install a pice of foam between the heater core pipes to correct the customers concern.
Owners of these vehicles have filed 163 complaints in the visibility category.
Vehicles covered
- Chevrolet Silverado 1500 2015-2018 2015201620172018
- GMC Sierra 1500 2015-2018 2015201620172018
- Chevrolet Silverado 2500 2019-2022 2019202020212022
- GMC Sierra 2500 2019-2022 2019202020212022
- Chevrolet Silverado 3500 2019-2022 2019202020212022
- GMC Sierra 3500 2019-2022 2019202020212022
VIN decoder
See the problems and recalls for an exact car
Buying a used Chevrolet Silverado 1500?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history