After Off-Road Driving

Remove any brush or debris that has collected on the underbody or chassis, or under the hood. These accumulations can be a fire hazard. After operation in mud or sand, have the brake linings cleaned and checked. These substances can cause glazing and uneven braking. Check the body structure, steering, suspension, wheels, tires, and exhaust system for damage and check the fuel lines and cooling system for any leakage.

More frequent maintenance service is required. Refer to the Maintenance Schedule on page 11‑3 for more information.

    See also:

    Entering the Feature Settings Menu
    1. Turn the ignition on and place the vehicle in P (Park). To avoid excessive drain on the battery, turn the headlamps off. 2. Press the customization button to scroll through the available customiz ...

    Reading Lamps
    Press the button near each lamp to turn them on or off. For more information, see: • Dome Lamps on page 6‑5. • Instrument Panel Illumination Control on page 6‑5. ...

    Powertrain details
    The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...