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Chevrolet TSB #21NA045

2017 Chevrolet Impala

TSB Document:

MC-10191218-9999.pdf

Affected Component: BRAKES (PWS)

Summary: This service bulletin informs dealers that a new Power Brake Booster Vacuum Cap will need to be replaced when installing the revised Power Brake Booster Vacuum Pipe to correct DTCs being set due to misrouting of brake booster vacuum pipe.

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Date Published: MAR 19, 2021
NHTSA TSB #: 10191218

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