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March 13, 2025 Service bulletin

This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs...

Chevrolet technical service bulletin 23-NA-073 for 2019-2025 Chevrolet Silverado 1500, 2019-2025 GMC Sierra 1500 and 2020-2025 Chevrolet Silverado 2500 and others.

Bulletin number
23-NA-073
Component
Engine
Summary
This technical bulletin provides repair information to correct a customer concern of Evaporative DTCs P0442, P0446, P0455 or P0449, Caused by Dust Intrusion into the Evaporative Canister.

Owners of these vehicles have filed 3,760 complaints in the engine category.

Vehicles covered

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