For 1990-2009 cars only
This vehicle has an automatic dimming inside rearview mirror with OnStar® controls. See OnStar® System for more information.
(On/Off): Press to turn the dimming feature on or off.Automatic Dimming Mirror Operation
Automatic dimming reduces the glare of lights from behind the vehicle. The dimming feature comes on and the indicator light illuminates each time the vehicle is started.
Cleaning the Mirror
Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water.
