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:

    Battery Replacement
    Notice: When replacing the battery, do not touch any of the circuitry on the transmitter. Static from your body could damage the transmitter. Replace the battery if the REPLACE BATTERY IN REMOT ...

    Windshield and Wiper Blades
    Clean the outside of the windshield with glass cleaner. Clean rubber blades using lint-free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield thoroug ...

    Parking on Hills
    WARNING Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the tr ...