Automatic Day-Night Mirror

Automatic Day-Night Mirror Description and Operation

Inside Rearview Mirror with Automatic Day-Night System Operation

The inside rearview mirror consist of 2 photocell sensors. The headlight sensor, located on the front of the mirror is used to determine light conditions present at the mirror face from sources behind the vehicle. The ambient light sensor, located on the rear of the mirror is used to determine exterior light conditions present at the mirror. At night the inside rearview mirror will automatically darken to reduce glare from headlamps behind the vehicle.

In daytime conditions, the mirror operates at a normal, clear state due to the high exterior light conditions that are indicated by the ambient light sensor. When the vehicles gear selector is placed in the REVERSE position the automatic day-night feature is disabled. This allows the inside rearview mirror face to gradually change to a normal, clear state and allow the driver to see objects in the mirror clearly when backing up.

Inside Rearview Mirror with OnStar(R) Switch Operation

The 3 switches on the mirror are for OnStar(R) operation. For more detailed information, refer to the vehicles owners manual.