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February 13, 2020 Service bulletin

This technical bulletin provides a procedure to replace the power brake booster vacuum check valve and...

Chevrolet technical service bulletin 17NA314 for 2018 Chevrolet Traverse and 2018 Buick Enclave.

Bulletin number
17NA314
Component
Service brakes
Summary
This technical bulletin provides a procedure to replace the power brake booster vacuum check valve and hose to correct a condition of Intermittent Service Power Brake Assist Message With a Brake Shudder and Possible DTC P0557 Set/Stored due to the Power Brake Booster Vacuum Sensor providing intermittent incorrect vacuum values due to circuit board fault.

Owners of these vehicles have filed 59 complaints in the brakes category.

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