The right rearview mirror of Buick LaCrosse is always on.

The line is damaged. Damage to the wiring of Buick LaCrosse's rearview mirror will lead to frequent lighting of the rearview mirror, so it is recommended to go to a specialty store for repair. The rearview mirror is a tool for the driver to directly obtain external information such as the back, side and bottom of the car while sitting in the cab seat. In order to facilitate the driver's operation, prevent traffic accidents and ensure personal safety, all countries stipulate that rearview mirrors must be installed on cars, and all rearview mirrors must be able to adjust the direction.