Buick's Mystery Parking Brake

Some owners of 2017 Buick LaCrosse vehicles may comment that when returning to the vehicle after it has been parked, the parking brake applies even though the switch has not been activated. This condition is caused by a software anomaly. If you encounter a vehicle with this concern, the chassis control module and trans range control module needs to be updated with the latest calibrations.

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 | Editor

Mike received a BA degree from Youngstown State University in English Literature with a minor in Journalism in 1975.