Four-wheel drive, Four-wheel drive -21, Transfer case buttons – GMC 2010 Sierra User Manual
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Press the plus/minus buttons, located on the steering
column shift lever, to select the desired range of
gears for current driving conditions. See Automatic
Transmission Operation on page 3‑30.
While using Range Selection Mode, cruise control and
the Tow/Haul mode can be used.
Grade Braking is not available when Range Selection
Mode is active. See Tow/Haul Mode on page 3‑36.
Four-Wheel Drive
If the vehicle has Four-Wheel Drive, you can send the
engine's driving power to all four wheels for extra
traction.
Transfer Case Buttons
The vehicle will have one of these three styles of
transfer case controls. Use these controls to shift into
and out of the different Four-Wheel Drive modes.
Manual Transfer Case
This transfer case shift lever is on the floor to the right
of the driver.
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