Service Repair

Buick LaCrosse Vehicles May Have Brake Problem

Sept. 30, 2020

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.

Information courtesy of Mitchell 1

Mike Mavrigian

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.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.