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WARNING!
Always engage the parking brake when powering
down the vehicle if the ؆Service 4WD؆ light is
illuminated. Not engaging the parking brake may
allow the vehicle to roll which may cause personal
injury.
NOTE:
Do not attempt to make a shift while only the
front or rear wheels are spinning. The NV 144 transfer case
is not equipped with a synchronizer and therefore the
front and rear driveshaft speeds must be equal for the shift
to take place. Shifting while only the front or rear wheels
are spinning can cause damage to the transfer case.
Proper operation of four-wheel-drive vehicles depends
on tires of equal size, type and circumference on each
wheel. Any difference in tire size can cause damage to the
transfer case.
Because four-wheel-drive provides improved traction,
there is a tendency to exceed safe turning and stopping
speeds. Do not go faster than road conditions permit.
For additional information on the appropriate use of each
transfer case mode position see the information below:
AWD
Normal All-Wheel-Drive High Range - Employs inter-
axle differential. Allows front and rear wheels to rotate at
different speeds. All road surfaces.
4LOCK
Four-Wheel-Drive LOCK - Locks the front and rear
driveshafts together. Forces the front and rear wheels to
rotate at the same speed. Additional traction for loose,
slippery road surfaces only.
STARTING AND OPERATING 251
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