Before Driving Off-Road

○ Have all necessary maintenance and service work completed.
○ Fuel the vehicle, fill fluid levels, and check inflation pressure in all tires, including the spare, if equipped.
○ Read all the information about all-wheel-drive vehicles in this manual.
○ Make sure all underbody shields, if equipped, are properly attached.
○ Know the local laws that apply to off-road driving.

To gain more ground clearance if needed, it may be necessary to remove the front fascia lower air dam.

Notice: Operating the vehicle for extended periods without the front fascia lower air dam installed can cause improper air flow to the engine. Re&-attach the front fascia air dam after off-road driving.

    See also:

    Passing
    More passing distance is needed when towing a trailer. Because the rig is longer, it is necessary to go farther beyond the passed vehicle before returning to the lane. ...

    Engine Overheating
    The vehicle has several indicators to warn of engine overheating. There is an engine coolant temperature gauge on the instrument panel cluster. See Engine Coolant Temperature Gauge on page 5‑1 ...

    Navigation
    OnStar navigation requires the Directions and Connections service plan. Push to receive directions or have them sent to the vehicle navigation screen. Destinations can also be forwarded to the v ...