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Buick LaCrosse Vehicles May Have Brake Problem

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Check the EBCM for loose connections. Verify a fully inserted and locked connection.


Some owners of 2016 Buick LaCrosse vehicles may comment about a hard brake pedal on a cold start-up and/or a service brake assist message. 

The technician may find DTCs C027B or P050F set in the EBCM. (electronic brake control module). On some vehicles, the connector at the KR14 brake booster pump motor relay may not be fully seated.

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