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:

    Recommended Fuel
    Use premium unleaded gasoline with a posted octane rating of 91 or higher. You can also use regular unleaded gasoline rated at 87 octane or higher, but the vehicle's acceleration could be slig ...

    When the System Does Not Seem to Work Properly
    The rear vision camera system may not work properly or display a clear image if: - The RVC is turned off. See “Turning the Rear Vision Camera System On or Off” earlier in this section. - It ...

    Exterior
    The 2007 Escalade EXT is roughly the same size as its predecessor, losing 1.5 inches of height but gaining an inch of length. Cargo room is up, with a rear cargo bed that has 45.5 cubic feet of vo ...