Shifting Into Four-Wheel Drive High or AUTO (Automatic Four-Wheel Drive)

GMC Sierra / GMC Sierra Owners Manuals / Driving and Operating / Drive Systems / Four-Wheel Drive / Shifting Into Four-Wheel Drive High or AUTO (Automatic Four-Wheel Drive)

Turn the knob to the Four-Wheel Drive High or AUTO position. This can be done at any speed, except when shifting from Four-Wheel Drive Low. The indicator light will flash while shifting. It will remain on when the shift is completed.

    See also:

    Turning the System On and Off
    The URPA system can be turned on and off using the rear park aid disable button located next to the radio. The indicator light comes on when the system is disabled and turns off when the system is ...

    Low Fuel Warning Light
    English Shown, Metric Similar This light comes on for a few seconds when the ignition is turned on as a check to indicate it is working. If it does not come on, have it fixed. The low fuel warni ...

    Trailer-Tow Mirrors
    If the vehicle has towing mirrors, they can be adjusted for a clearer view of the objects behind you. Manually pull out the mirror head to extend it for better visibility when towing a trailer. Th ...