News Technical Service Bulletins

Buick's Mystery Parking Brake

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Buick 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.


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