Recommended Transfer Case Settings - GMC 2014 Sierra Owner's Manual

Normal
Severe
Extreme
Vehicle in Tow*
*See
.
Driving on clean, dry pavement in
four-wheel drive for an extended
period of time can cause
premature wear on the vehicle's
powertrain. Do not drive on clean,
dry pavement in four-wheel drive
for extended periods of time.
YES
YES
YES
or
setting also engages the front axle
and delivers extra torque. You may
never need Four-Wheel Drive Low.
It 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, or deep snow, and while
climbing or descending steep hills.
Shifting into Four-Wheel Drive Low
will turn Traction Control and
StabiliTrak off. See
.
YES
A parking brake symbol is next to
the N (Neutral) symbol as a
reminder to set the parking brake
This
before shifting the transfer case into
N (Neutral).