Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Return to Factory Settings
    Select Return to Factory Settings to return all of the vehicle personalization to the default settings. Turn the knob to select Yes or No. Press the knob to confirm and go back to the last menu. ...

    Engine Oil Additives/Engine Oil Flushes
    Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection. ...

    Keyless Unlock
    If the vehicle has the keyless access system, this feature allows you to select which doors will automatically unlock when you approach the vehicle with the keyless access transmitter and ...