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:

    Checking Engine Oil
    It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground. The engine oil dipstick handl ...

    Safety Warnings and Symbols
    Warning Messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them. Danger indicates a hazard with a high level of risk which will result in ser ...

    Making a Call
    To make a call: 1. Press once or twice, depending on the radio. 2. Enter the character sequence. See “Entering a Character Sequence” in Operation  for more information. 3. Select Call ...