For 1990-2009 cars

Adjust the mirror to see clearly behind your vehicle. Hold the mirror in the center to move it up or down and side to side. Adjust the mirror to avoid glare from the headlamps behind your vehicle. Move the lever to the right for nighttime use and to the left for daytime use.

Vehicles with OnStar® have three additional control buttons located at the bottom of the mirror. See your dealer/retailer for more information on the system and how to subscribe to OnStar. See OnStar® System for more information on the services OnStar provides.