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:

    How to Check
    Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold meaning th ...

    Rear Seats
    The vehicle's rear seats have adjustable head restraints in the outboard seating positions. The height of the head restraint can be adjusted. Pull the head restraint up to raise it. Try to mo ...

    Retained Accessory Power (RAP)
    These vehicle accessories can be used for up to 10 minutes after the engine is turned off: - Audio System - Power Windows - Sunroof (if equipped) Power to the audio system will work up to 10 ...