GMC Yukon 2012 Owner's Manual page 29

Automatic Transfer Case
Two Speed Transfer Case
Single Speed Transfer Case
The transfer case knob is located to
the left of the instrument panel
cluster. Use this knob to shift into
and out of the different Four-Wheel
Drive modes.
2 : This setting is used for driving
in most street and highway
situations.
AUTO: This setting is ideal for use
when road surface traction
conditions are variable.
4 : Use the Four-Wheel-Drive
High position when extra traction is
needed, such as on snowy or icy
roads or in most off-road situations.
4 : Vehicles with a two speed
transfer case have a
Four-Wheel-Drive Low position. This
setting sends maximum power to all
four wheels. You might choose
Four-Wheel-Drive Low if you are
driving off-road in deep sand, deep
mud, deep snow, and while climbing
or descending steep hills.
In Brief
N (Neutral): Vehicles with a
two speed transfer case have a
N (Neutral) position. Shift the
transfer case to N (Neutral) only
when towing the vehicle. See
Recreational Vehicle Towing on
page 10 91 or Towing the Vehicle
on page 10 91.
See Four-Wheel Drive (Single
Speed Automatic Transfer Case) on
page 9 42 or Four-Wheel Drive (Two
Speed Automatic Transfer Case) on
page 9 37.
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