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:

    Storing Name Tags
    The system can store up to thirty phone numbers as name tags that are shared between the Bluetooth and OnStar systems. The system uses the following commands to store and retrieve phone numbers ...

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

    Side Blind Zone Alert (SBZA)
    The vehicle may have a Side Blind Zone Alert (SBZA) system. Read this entire section before using the system. WARNING: SBZA is only a lane changing aid and does not replace driver vision. SBZA ...