Reactivation for Subsequent Owners

Push speak to an Advisor as soon as and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.

The Advisor will update vehicle records and will explain the OnStar service offers and options available.

    See also:

    Gasoline Specifications
    At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentad ...

    Interior Mirrors
    Adjustment Hold the rearview mirror in the center and move it to view the area behind the vehicle. Manual Rearview Mirror For vehicles with a manual rearview mirror, push the tab forward for dayt ...

    Tire and Loading Information Label
    Label Example A vehicle specific Tire and Loading Information label is attached to the vehicle’s center pillar (B-pillar). With the driver door open, you will find the label attached below ...