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December 13, 2023 Service bulletin

This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil...

Chevrolet technical service bulletin 21-NA-147 for 2012-2020 Chevrolet Impala, 2010-2017 Chevrolet Equinox and 2019-2022 Chevrolet Blazer and others.

Bulletin number
21-NA-147
Component
Engine and engine cooling
Summary
This service bulletin provides a repair procedure to correct a customer concern of Coolant and/or Oil Leak, Malfunction Indicator Lamp (MIL) Illuminated​.

Owners of these vehicles have filed 6,859 complaints in the engine category.

Vehicles covered

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