Verify Minutes and Expiration

Push OnStar Mobile App and say “minutes” then “verify” to check how many minutes remain and their expiration date.

    See also:

    When the System Does Not Seem To Work Properly
    The RVC 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 is da ...

    Starting the Engine
    Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only. Notice: Do not try to ...

    Glass Replacement
    If the windshield or front side glass must be replaced, see your dealer to determine the correct replacement glass. ...