Automatic Dimming Rearview Mirror

On vehicles with an automatic dimming inside rearview mirror the automatic dimming reduces the glare from the headlamps of the vehicle behind you.

Vehicles with OnStar have three control buttons located at the bottom of the mirror. See your dealer for more information about OnStar and how to subscribe to it.

See OnStar Overview.

Cleaning the Mirror

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

    See also:

    Side Blind Zone Alert (SBZA)
    The vehicle may have a Side Blind Zone Alert (SBZA) system. Read this entire section before using the system. WARNING! SBZA does not detect vehicles rapidly approaching outside of the side ...

    Brake Wear
    Your vehicle has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound ma ...

    Compass Messages
    CAL This message is displayed when the compass needs to be calibrated. See Compass . – – – Three dashes will be displayed if the compass needs service. See your dealer for service. ...