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:

    Engine Coolant
    The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first. The fo ...

    Battery
    If the vehicle is a hybrid, see the hybrid supplement for more information. Refer to the replacement number on the original battery label when a new battery is needed. See Engine Compartment Overvi ...

    Shifting out of Park
    This vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to: Prevent ignition key removal unless the shift lever is in P (Park) with the shift ...