Buick LaCrosse park assist light activates on startup requiring manual deactivation on Buick LaCrosse

Some Buick LaCrosse owners report experiencing issues with the park assist light activating on startup, requiring manual deactivation each time. This deactivation is only temporary, as the system resets when the vehicle is turned off, necessitating repeated manual intervention. Additionally, a consistently activating park assist light may signal a malfunction or blockage, often caused by dirt or road salt obstructing the bumper sensors. In snowy conditions, owners may see a "Park assist off" message on the DIC display, which can typically be resolved by cleaning the sensors. The park assist system relies on ultrasonic sensors located on the front and rear bumpers to detect obstacles, and maintaining these sensors is crucial to prevent malfunctions.