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December 13, 2021 Service bulletin

This service bulletin provides repair information for dealers/technicians to correct a customer concern of...

Chevrolet technical service bulletin 21NA256 for 2019-2022 Chevrolet Silverado 1500, 2019-2022 GMC Sierra 1500 and 2019-2022 Chevrolet Blazer and others.

Bulletin number
21NA256
Component
Exterior lighting
Summary
This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.

Owners of these vehicles have filed 88 complaints in the lights category.

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