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:

    XM Messages
    XL (Explicit Language Channels): These channels, or any others, can be blocked by request, by calling 1-800-929-2100 in the U.S. and 1-877-438-9677 in Canada. XM Updating: The encryption code in th ...

    Gate Operator and Canadian Programming
    If you have questions or need help programming the Universal Home Remote System, call 1-800-355-3515 or go to www.homelink.com. Canadian radio-frequency laws require transmitter signals to time out o ...

    Shocks and Struts
    Shocks and struts help aid in control for a smoother ride. • Signs of wear may include steering wheel vibration, bounce/ sway while braking, longer stopping distance, or uneven tire wear. • As p ...