This technical bulletin provides repair information to correct a customer concern of a pop noise heard...
Chevrolet technical service bulletin 21NA018 for 2019-2020 Chevrolet Silverado 1500, 2019-2020 GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 and others.
- Bulletin number
- 21NA018
- Component
- Equipment
- Summary
- This technical bulletin provides repair information to correct a customer concern of a pop noise heard coming from the rear roof of cab area.
Vehicles covered
- Chevrolet Silverado 1500 2019-2020 20192020
- GMC Sierra 1500 2019-2020 20192020
- Chevrolet Silverado 2500 2020 2020
- GMC Sierra 2500 2020 2020
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