Onstar.com

The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.

Get subscription plan pricing and sign up for OnStar Vehicle Diagnostics. Click on the “My Account” tab on the home page.

    See also:

    Exit Lighting
    The interior lamps come on when the key is removed from the ignition. They turn off automatically in 20 seconds. The lights do not come on if the dome override button is pressed in. ...

    Tire Designations
    Tire Size The following is an example of a typical passenger vehicle tire size. (A) Passenger (P—Metric) Tire: The United States version of a metric tire sizing system. The letter P as ...

    Manual Fold and Tumble Feature
    Folding and Tumbling the Seat To fold and tumble the seat: 1. Make sure that there is nothing under, in front of, or on the seat. Notice: Folding a rear seat with the safety belts still fastened ma ...