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:

    Fuel E85 (85% Ethanol)
    Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑53. For al ...

    Power Mirrors
    To adjust the mirrors: 1. Move the selector switch to L (left) or R (right) to choose the driver or passenger mirror. 2. Press the arrows on the control pad to move each mirror in the desired di ...

    Steering Wheel Controls
    If equipped, some audio controls can be adjusted at the steering wheel. (Next) : Press to go to the next favorite radio station, track on a CD, or folder on an iPod® or USB device. (Previous/En ...