GMC 2011 Sierra - Manual (Page 351)

Black plate (57,1) GMC Sierra Owner Manual - 2011
Driving and Operating 9-57
When Using the Manual
Transfer Case
. Shifts into or out of Four-Wheel
Drive Low or N (Neutral) should
be made using quick motions to
avoid excessive gear grinding.
Shifting slowly may make it more
difficult to shift.
. You may notice that it is harder
to shift when the vehicle is cold.
After the vehicle warms up the
shifting will return to normal.
. While in Four-Wheel High or
Four-Wheel Drive Low you
may experience reduced fuel
economy.
. Avoid driving in Four-Wheel
Drive on clean, dry pavement.
It may cause your tires to wear
faster, make the transfer case
harder to shift, and run noisier.
. If the transfer case shifter is in
the N (Neutral) position and
you have difficulty reaching the
selected transfer case mode,
with the engine running, shift
the transmission momentarily
to D (Drive) and then back to
N (Neutral). This will realign the
gear teeth in the transfer case
and allow you to complete the
shift.
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.