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:

    Vehicle Identification Number (VIN)
    Vehicle Identification Number (VIN) This legal identifier is in the front corner of the instrument panel, on the left side of the vehicle. It can be seen through the windshield from outside. The VI ...

    Blind Spot Mirrors
    The blind spot mirror is a small convex mirror built into the upper and outer corner of both outside mirrors. It can show objects that may be in the vehicle's blind zone. ...

    Rear Window Wiper/Washer
    The rear wiper and rear wash button is located on the instrument panel below the climate control system. (Rear Wiper): Press to turn the rear wiper on and off. The wiper speed cannot be changed. ( ...