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March 29, 2021 Service bulletin

This technical bulletin provides repair information to correct a customer concern of DTC P0101 Mass Air...

Chevrolet technical service bulletin 21NA032 for 2019-2021 Chevrolet Silverado 1500 and 2019-2021 GMC Sierra 1500.

Bulletin number
21NA032
Component
Visibility
Summary
This technical bulletin provides repair information to correct a customer concern of DTC P0101 Mass Air Flow (MAF) Sensor Performance, P1682 Set after MAF Replacement.

Owners of these vehicles have filed 68 complaints in the visibility category.

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