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.

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