OnStar Mobile App

With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there is cell phone service. It can also check the fuel level, tire pressure, and oil life.

It can connect to an OnStar Advisor anytime. For OnStar mobile app compatibility or further information, see www.onstar.com.

    See also:

    Central Door Unlocking System
    The vehicle has a central door unlocking feature. When unlocking the driver door, the other doors can be unlocked by holding the key in the turned position for a few seconds or by quickly tu ...

    Hill and Mountain Roads
    Driving on steep hills or through mountains is different than driving on flat or rolling terrain. Tips for driving in these conditions include: - Keep the vehicle serviced and in good shape. - ...

    Engine Compartment Fuse Block (CTS-V Wagon)
    The underhood fuse block is located on the left side of the engine compartment. Lift the fuse block cover to access the fuses. The vehicle may not be equipped with all of the fuses and rel ...