See also:

Cleaning the Mirror
Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water. ...

Interior Mirror
The vehicle has an automatic dimming inside rearview mirror. Automatic dimming reduces the glare of lights from behind the vehicle. The dimming feature comes on and the indicator light illuminat ...

Automatic Dimming Rearview Mirror
The vehicle may have an automatic dimming inside rearview mirror with OnStar® and/or a compass display. Automatic dimming reduces the glare from the headlamps of the vehicle behind you. The dim ...