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September 28, 2022 Service bulletin

This service bulletin provides repair procedures to correct customer concerns of Poor Engine Performance...

Chevrolet technical service bulletin 17-NA-221 for 2021-2022 Chevrolet Trax and 2016-2019, 2021-2022 Buick Encore.

Bulletin number
17-NA-221
Component
Engine and engine cooling
Summary
This service bulletin provides repair procedures to correct customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions for LE2 Engines, Charge Air Cooler (CAC) Icing - Malfunction Indicator Lamp (MIL) Illuminated.

Owners of these vehicles have filed 171 complaints in the engine category.

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