Shifting from Two-Wheel Drive High to Four-Wheel Drive High

GMC Sierra / GMC Sierra Owners Manuals / Driving and Operating / Drive Systems / Four-Wheel Drive / Shifting from Two-Wheel Drive High to Four-Wheel Drive High

• Shifts between Two-Wheel Drive High and Four-Wheel Drive High can be made at any vehicle speed.

• Shift the transfer case lever in one continuous motion into either the Four-Wheel Drive High or Two-Wheel Drive High position.

• Shifting from Two-Wheel Drive High to Four-Wheel Drive High while the vehicle is in motion may require that moderate force be applied to the shift lever for a few seconds before Four-Wheel Drive High can be engaged, especially in cold weather.

• In extremely cold weather, it may be necessary to slow or stop the vehicle to shift into Four-Wheel Drive High.

• While in Four-Wheel Drive High, the vehicle can be driven at any posted legal speed limit.

    See also:

    Brake Assist
    This vehicle has a brake assist feature designed to assist the driver in stopping or decreasing vehicle speed in emergency driving conditions. This feature uses the stability system hydraulic brake co ...

    Customer Satisfaction Procedure (Mexico)
    Did you get the Warranty Extension Plan? This plan is recommended by General Motors to supplement the warranty included with the new vehicle purchase. See your dealer for details. Customer Assista ...

    California Fuel Requirements
    If the vehicle is certified to meet California Emissions Standards, it is designed to operate on fuels that meet California specifications. See the underhood emission control label. If this fuel i ...