Underbody Maintenance

Use plain water to flush dirt and debris from the vehicle's underbody.

Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop.

    See also:

    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 ...

    Dolly Towing (Front-Wheel—Drive Vehicles)
    To tow the vehicle from the front with the rear wheels on the ground, do the following: 1. Put the front wheels on a dolly. 2. Move the shift lever to P (Park). See Shifting Into Park. 3. ...

    When the System Does Not Seem to Work Properly
    The following messages may be displayed on the DIC: SERVICE PARKING ASSIST: If this message occurs, take the vehicle to your dealer for repair. PARKING ASSIST OFF: This message occurs if the drive ...