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:

    Supercharged powertrain
    The Cadillac CTS-V Coupe employs the LSA 6.2L supercharged V-8 engine also found on the CTS-V Sport Sedan. Rated at 556 horsepower (415 kW) and 551 lb.-ft. of torque (747 Nm), it is the most power ...

    SBZA Messages
    The following messages may appear on the infotainment display: SIDE BLIND ZONE ALERT SYSTEM OFF: This message indicates that the driver has turned the system off. SIDE BLIND ZONE ALERT SYS ...

    Immobilizer
    See Radio Frequency Statement for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. ...