STARTING AND OPERATING
CONTENTS
mStarting Procedures.................... 239
NManual Transmission.................. 239
NAutomatic Transmission................ 239
NNormal Starting..................... 240
NExtreme Cold Weather (Below ±20ÉF Or
±29ÉC)............................ 240
NIf Engine Fails To Start................. 240
NAfter Starting....................... 241
mEngine Block Heater Ð If Equipped......... 241mManual Transmission................... 242
NShifting........................... 243
NDownshifting....................... 244
NReverse Shifting..................... 245
mAutomatic Transmission................. 245
NBrake/Transmission Interlock System...... 246
NAutomatic Transmission................ 246
mFour-Wheel Drive Operation.............. 251
5
cause damage to the transmission. The torque converter
will refill within five seconds of shifting from PARK into
any other gear position.
FOUR-WHEEL DRIVE OPERATION
NV233/243 GII Transfer Case Operating
Information/Precautions
The NV233/243 is an electric-shift transfer case and is
operated by the 4WD Control Switch (Transfer Case
Switch), which is located on the instrument panel.
The NV233/243 transfer case provides four mode posi-
tions: 2 (rear) wheel drive high range, 4 wheel drive high
range, 4 wheel drive low range, and NEUTRAL.
The NV233/243 transfer case is designed to be driven in
the 2-wheel drive position (2WD) for normal street and
highway conditions (dry hard-surfaced roads).
When additional traction is required, the transfer case
4WD LOCK and 4WD LOW positions can be used to lockthe front and rear driveshafts together and force the front
and rear wheels to rotate at the same speed. This is
accomplished by rotating the 4WD Control Switch to the
desired position - Refer to ªShifting Procedureº in this
section. The 4WD LOCK and 4WD LOW positions are
designed for loose or 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.
STARTING AND OPERATING 251
5
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
STARTING AND OPERATING 257
5
WARNING!
Both Anti-Lock Brake Systems contain sophisticated
electronic equipment. It may be susceptible to inter-
ference caused by improperly installed or high out-
put radio transmitting equipment. This interference
can cause possible loss of anti-lock braking capabil-
ity. Installation of such equipment should be done by
qualified professionals.
Four-Wheel Anti-Lock Brake System (ABS)
4-Wheel ABS is designed to aid the driver in maintaining
vehicle control under adverse braking conditions. The
system operates with a separate computer to modulate
hydraulic pressure, to prevent wheel lock-up and help
avoid skidding on slippery surfaces.The system's pump motor runs during an ABS stop to
provide regulated hydraulic pressure. The pump motor
makes a low humming noise during operation, which is
normal.
The ABS includes an amber ABS warning light. When the
light is illuminated, the ABS is not functioning. The
system reverts to standard non-anti-lock brakes. Turning
the ignition OFF and ON again may reset the ABS if the
fault detected was only momentary.WARNING!
Pumping of the Anti-Lock Brakes will diminish their
effectiveness and may lead to an accident. Pumping
makes the stopping distance longer. Just press firmly
on your brake pedal when you need to slow down or
stop.
270 STARTING AND OPERATING
loading may be required for high-speed vehicle opera-
tion. Refer to original equipment or an authorized tire
dealer for recommended safe operating speeds, loading
and cold tire inflation pressures.
WARNING!
High speed driving with your vehicle under maxi-
mum load is dangerous. The added strain on your
tires could cause them to fail. You could have a
serious accident. Do not drive a vehicle loaded to the
maximum capacity at continuous speeds above
75 mph (120 km/h).
Radial Ply Tires
WARNING!
Combining radial ply tires with other types of tires
on your vehicle will cause your vehicle to handle
poorly. The instability could cause an accident. Al-
ways use radial ply tires in sets of four (or six, in case
of trucks with dual rear wheels). Never combine
them with other types of tires.
Cuts and punctures in radial tires are repairable only in
the tread area because of sidewall flexing. Consult your
authorized tire dealer for radial tire repairs.
STARTING AND OPERATING 283
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²Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
Base System ± If Equipped
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the receiver module.
NOTE:It is particularly important for you to check the
tire pressure in all of your tires regularly and to maintain
the proper pressure.
The TPMS consists of the following components:
²Receiver module
²Four tire pressure monitoring sensors
²Tire Pressure Monitoring Telltale LampThe Tire Pressure Monitoring Telltale Lamp will
illuminate in the instrument cluster, and an au-
dible chime will be activated when one or more of
the four active road tire pressures are low. Should this
occur, you should stop as soon as possible, check the
inflation pressure of each tire on your vehicle, and inflate
each tire to the vehicle's recommended cold placard
pressure value. The system will automatically update
and the Tire Pressure Monitoring Telltale Lamp will
extinguish once the updated tire pressures have been
received. The vehicle may need to be driven for up to
10 minutes above 15 mph (25 km/h) to receive this
information.
The Tire Pressure Monitoring Telltale Lamp will flash on
and off for 75 seconds, and remain on solid when a
system fault is detected. The system fault will also sound
a chime. If the ignition key is cycled, this sequence will
repeat, providing the system fault still exists. The Tire
Pressure Monitoring Telltale Lamp will turn off when the
STARTING AND OPERATING 295
5
fault condition no longer exists. A system fault can occur
by any of the following scenarios: 1) Jamming due to
electronic devices or driving next to facilities emitting the
same radio frequencies as the TPM sensors; 2) Installing
some form of aftermarket window tinting that affects
radio wave signals; 3) Lots of snow or ice around the
wheels or wheel housings; 4) Using tire chains on the
vehicle; 5) Using wheels/tires not equipped with TPM
sensors.
NOTE: Your vehicle is equipped with a non-matching
full size spare wheel and tire assembly.
1. This spare tire does not have a tire pressure monitor-
ing sensor. Therefore, the TPMS will not monitor the tire
pressure in the spare tire.
2. If you install the full size spare tire in place of a road
tire that has a pressure below the low-pressure warninglimit, upon the next ignition key cycle a chime will sound
and the TPM Telltale Lamp will still turn ON due to the
low tire.
3. However, after driving the vehicle for up to 10 min-
utes above 15 mph (25 km/h), the TPM Telltale Lamp
will flash on and off for 75 seconds and then remain on
solid.
4. For each subsequent ignition key cycle, a chime will
sound and the TPM Telltale Light will flash on and off for
75 seconds and then remain on solid.
5. Once you repair or replace the original road tire, and
reinstall it on the vehicle in place of the full size spare tire,
the TPMS will update automatically and the TPM Telltale
Lamp will turn OFF, as long as no tire pressure is below
the low-pressure warning limit in any of the four active
road tires. The vehicle may need to be driven for up to
10 minutes above 15 mph (25 km/h) in order for the
TPMS to receive this information.
296 STARTING AND OPERATING
WARNING! (Continued)
Make certain that the load is secured in the trailer
and will not shift during travel. When trailering
cargo that is not fully secured, dynamic load shifts
can occur that may be difficult for the driver to
control. You could lose control of your vehicle and
have an accident.
²When hauling cargo or towing a trailer, do not over-
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to brakes,
axle, engine, transmission, steering, suspension, chas-
sis structure or tires.
²Safety chains must always be used between your
vehicle and trailer. Always connect the chains to the
frame or hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
²Vehicles with trailers should not be parked on a grade.
When parking, apply the parking brake on the tow
vehicle. Put the tow vehicle automatic transmission in
PARK. With a manual transmission, shift the transmis-
sion into REVERSE. For four-wheel drive vehicles,
make sure the transfer case is not in NEUTRAL.
Always, block or9chock9the trailer wheels.
²GCWR must not be exceeded.
²Total weight must be distributed between the tow
vehicle and the trailer so that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR
318 STARTING AND OPERATING