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Shifting Procedure - NV233/243 Transfer Case
NOTE:If any of the requirements to select a new
transfer case position have not been met, the transfer case
will not shift, the indicator light for the previous position
will remain ON, and the newly-selected position indica-
tor light will continue to flash until all the requirements
for the selected position have been met. To retry a shift:return the control knob back to the original position,
make certain all shift requirements have been met, wait
five seconds, and try the shift again.
2WD-to-4WD LOCK or 4WD LOCK-to-2WD
Rotate the 4WD Control Switch to the desired position.
Shifts between 2WD and 4WD LOCK can be done with
the vehicle stopped, or in motion. With the vehicle in
motion, the transfer case will engage / disengage faster if
you momentarily release the accelerator pedal after turn-
ing the control switch. If the vehicle is stopped, the
ignition key must be in the ON position with the engine
either RUNNING or OFF. This shift cannot be completed
if the key is in the ACC position.
NOTE:On vehicles equipped with Anti-Lock Brake
Systems, the 4x4 system will not allow shifts between
2WD/ 4WD LOCK if the rear wheels are spinning (no
traction). In this situation the selected position indicator
light will flash and the original position indicator light
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will remain ON. At this time, reduce speed and stop
spinning the wheels to complete the shift. There may be
a delay up to 10 seconds for the shift to complete after the
wheels have stopped spinning.
4WD LOCK-to-4WD LOW or 4WD LOW-to-4WD
LOCK
NOTE:When shifting into or out of 4WD LOW, some
gear noise may be heard. This noise is normal and is not
detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling 2 to
3 mph (3 to 5 km/h), or completely stopped. USE
EITHER OF THE FOLLOWING PROCEDURES:
Preferred Procedure
1. With engine RUNNING, slow vehicle to 2 to 3 mph (3
to 5 km/h).2. Shift the transmission into NEUTRAL (depress clutch
on manual transmissions).
3. While still rolling, rotate the transfer case control
switch to the desired position.
4. After the desired position indicator light is ON (not
flashing), shift transmission back into gear (release clutch
on manual transmissions).
Alternate Procedure
1. Bring the vehicle to complete stop.
2. With the key ON and the engine either OFF or
RUNNING, shift the transmission into NEUTRAL (de-
press clutch on manual transmissions).
3. Rotate the transfer case control switch to the desired
position.
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4. After the desired position indicator light is ON (not
flashing), shift transmission back into gear (release clutch
on manual transmissions).
NOTE:If steps 1 or 2, of either the Preferred or Alternate
Procedure, are not satisfied prior to attempting the shift,
or if they no longer are being met while the shift attempt
is in process, then the indicator light will flash and the
current transfer case position will be maintained. To retry
the selection, turn the control knob back to the current
position, wait five seconds, and retry shift.
NOTE:The ignition key must be ON for a shift to take
place and for the position indicator lights to be operable.
If the key is not ON then the shift will not take place and
no position indicator lights will be on or flashing.NV 244 Generation II Transfer Case Operating
Information / Precautions
The NV 244 Generation II is an electric-shift transfer case
and is operated by the 4WD Control Switch, which is
located on the instrument panel.
The NV 244 Generation II transfer case provides four
mode positions - Normal four-wheel drive (4WD) high
range, 4-wheel-drive lock (4WD LOCK), 4-wheel drive
low (4WD LOW) range, and NEUTRAL.
This transfer case is equipped with an inter-axle differ-
ential that allows driving the vehicle in the normal
all-wheel drive position (4WD) at all times on any given
road surface, including dry, hard-surfaced roads. The
4WD mode allows the front and rear wheels to rotate at
different speeds. This eliminates driveline binding and
component wear normally associated with driving the
vehicle in the 4WD LOCK position on dry, hard-surfaced
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roads. This feature provides the safety, security, and
convenience of operating in all-wheel drive at all times
regardless of road conditions.
When additional traction is required, the 4WD LOCK
and 4WD LOW positions can be used to lock the front
and rear driveshafts together, through the transfer case
inter-axle differential, and force the front and rear wheels
to rotate at the same speed. This is accomplished by
rotating the 4WD Control Switch to these positions. The
4WD LOCK and 4WD LOW positions are intended for
loose, slippery road surfaces only. Driving in the 4WD
LOCK and 4WD LOW positions on dry, hard-surfaced
roads may cause increased tire wear and damage to the
driveline components.
The transfer case NEUTRAL position is selected by
depressing the recessed button located on the lower left
hand corner of the 4WD Control Switch.NOTE:The transfer case NEUTRAL position is to be
used for recreational towing only. Refer to ªRecreational
Towingº in Section 5 for specific procedures on shifting
into and out of NEUTRAL.
Transfer Case Position Indicator Lights
Transfer case position indicator lights are located on the
instrument cluster. If there are no indicator lights on or
flashing, the transfer case position is 4-wheel drive
(4WD) and indicates the current and desired transfer case
selection (4WD,4WD LOCK).
The ªSVC 4WDº warning light monitors the electric shift
4WD system. If this light remains on after engine start up
or illuminates during driving, it means that the 4WD
system is not functioning properly and that service is
required. See your authorized dealer for service.
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WARNING!
Always engage the parking brake when powering
down the vehicle if the(SVC 4WD(light is illumi-
nated. 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 244 Generation
II 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.
When operating your vehicle in 4WD LOW, the engine
speed is approximately three times that of the 4WD or
4WD LOCK positions at a given road speed. Take care
not to overspeed the engine and do not exceed 25 mph
(40 km/h).Proper operation of 4-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 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit.
WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move,
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
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For additional information on the appropriate use of each
transfer case mode position, refer to the following infor-
mation:
4WD
The 4-Wheel Drive High Range employs the inter-axle
differential. This range allows front and rear wheels to
rotate at different speeds on all road surfaces.
4WD LOCK
The 4-Wheel Drive Lock (4WD LOCK) Range locks the
transfer case inter-axle differential, forcing the front and
rear wheels to rotate at the same speed. Additional
traction for loose, slippery road surfaces only.4WD LOW
The 4-Wheel Drive Low (4WD LOW) Range provides
low speed 4-wheel drive. It locks the front and rear
driveshafts together, forcing the front and rear wheels to
rotate at the same speed. This range provides additional
traction and maximum pulling power for loose or slip-
pery road surfaces only. Do not exceed 25 mph
(40 km/h).
N
The NEUTRAL Range disengages both the front and rear
driveshafts from the powertrain. NEUTRAL is used for
flat towing behind another vehicle. Refer to ªRecreational
Towingº in Section 5.
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Shifting Procedure - NV 244 Generation II
Transfer Case
NOTE:The 4x4 system will not allow shifts between
4WD/4WD LOCK if the rear wheels are spinning (no
traction). In this situation, a position indicator light will
flash and the original position indicator light will remain
on. At this time, reduce speed and stop spinning thewheels to complete the shift. There may be a delay up to
13 seconds for the shift to complete after the wheels have
stopped spinning.
NOTE:Delayed shifting out of the 4WD LOCK position
may be experienced due to uneven tire wear, low tire
pressure, or excessive loading.
NOTE:When shifting into, or out of 4WD LOW, some
gear noise may be heard. This noise is normal and is not
detrimental to the vehicle or occupants.
Shifting can be performed with the vehicle rolling 2 to
3 mph (3 to 5 km/h) or completely stopped. USE EITHER
OF THE FOLLOWING PROCEDURES:
Preferred Procedure
1. With the engine running, slow vehicle to 2 to 3 mph (3
to 5 km/h).
2. Shift the transmission into NEUTRAL.
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3. While still rolling, rotate the transfer case control
switch to the desired position.
4. After the position indicator light has stopped flashing,
shift the transmission back into gear.
Alternate Procedure
1. Bring the vehicle to a complete stop.
2. With the key ON and the engine either OFF or
running, shift the transmission into NEUTRAL.
3. Rotate the transfer case control switch to the desired
position.
4. After the position indicator light has stopped flashing,
shift the transmission back into gear.
NOTE:
²The ignition key must be ON for a shift to take place
and for the position indicator lights to be operable. Ifthe key is not ON then the shift will not take place and
no position indicator lights will be on or flashing.
²If any of the requirements to select a new transfer case
position have not been met, the transfer case will not
shift. The indicator light will flash and the current
transfer case position will be maintained. To retry the
selection, turn the control knob back to the current
position, wait five seconds, and retry the shift.
LIMITED-SLIP REAR AXLE DIFFERENTIAL Ð IF
EQUIPPED
The limited-slip differential provides additional traction
on snow, ice, mud, sand and gravel. It improves traction
when there is a difference between the characteristics of
the surface under the right and left rear wheels. During
normal driving and cornering, the limited-slip unit is
similar to a conventional differential. But on a slippery
surface, the differential delivers more of the driving effort
to the wheel having the better traction.
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