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:

    Adding Washer Fluid
    Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview  for reservoir location. Notice When using concentrated washer fluid, ...

    Sum greater than pieces
    This LaCrosse just glided through the hills and country roads around Milford — home to GM's proving grounds — where I test drove it. There were a few times, if you really stepped on the gas, t ...

    Cornering Lamps
    For vehicles with this feature, the cornering lamps come on when: the headlamps or parking lamps are on, the vehicle is not in P (Park), and you signal a turn with the turn signal/multifunction ...