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:

    Engine Drive Belt Routing
    V6 Engines V8 Engines If the vehicle has a diesel engine, see the Duramax diesel supplement for more information. If the vehicle is a hybrid, see the hybrid supplement for more information. ...

    Compass Zone
    The zone is set to zone eight upon leaving the factory. Your dealer will set the correct zone for your location. Under certain circumstances, such as during a long distance cross-country trip or movi ...

    Automatic Door Locks
    The vehicle may have an automatic lock/unlock feature. This feature can be programmed using the Driver Information Center (DIC). See Vehicle Personalization (With DIC Buttons) on page 5‑52 for m ...