
Temperature gages may not show accurate readings.
When the engine is not running, turn the ignition switch
to ON to obtain accurate readings.
17. Airbag Indicator
The indicator lights and remains lit for 6 to 8
seconds when the ignition is first turned ON. If
the light does not come on when the ignition is first
turned on, or the light stays on or comes on while
driving, have the airbag system checked by an autho-
rized dealer.
18. Low Fuel Warning Light
This indicator lights when the fuel gauge reads
1/8 of a tank or less.
19. ABS Warning Light
This light monitors the Anti-Lock Brake Sys-
tem which is described elsewhere in this
manual. This light will come on when the
ignition key is turned to the ON position and
may stay on for 5 seconds. If this light remains on or
comes on during driving, it indicates that the anti-lockportion of the brake system is not functioning and that
service is required. See your authorized dealer imme-
diately.
20. Transmission Oil Temperature Warning Light
This light indicates that there is excessive
transmission fluid temperature that might
occur with severe usage such as trailer tow-
ing. If this light comes on, stop the vehicle
and run the engine at idle or faster, with the transmis-
sion in NEUTRAL until the light goes off.
21. Security
The light will flash rapidly for approximately 15 seconds
when the vehicle theft alarm is arming. The light will
flash at a slower rate after the alarm is set. The security
light will also come on for about three seconds when the
ignition is first turned ON.
22. Cargo Lamp
The Cargo Lamp light will illuminate when the Cargo
Lamp is activated from the Head Lamp switch.
102 INSTRUMENT PANEL AND CONTROLS

U.S. federal regulations require that upon transfer of
vehicle ownership, the seller certify to the purchaser the
correct mileage that the vehicle has been driven. There-
fore, if the odometer reading is changed during repair or
replacement, be sure to keep a record of the reading
before and after the service so that the correct mileage can
be determined.
The trip odometer shows individual trip mileage. To
toggle between the odometer and the trip odometer,
press the Odometer/Trip Odometer Button.
27. Cruise Light
This indicator lights when the electronic speed control
system is turned on.
28. Coolant Temperature Light (Clusters Without A
Gauge)
This light warns of an overheated engine con-
dition. For a bulb check, this light will come on
momentarily when the ignition is turned On. If
the light turns on while driving, stop the vehicle and
shut off the engine as soon as possible.
CAUTION!
Driving with a hot engine cooling system could
damage your vehicle. If the temperature light is on,
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the light turns
off. If the if the light remains on, turn the engine off
immediately, and call for service.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call a service center if your
vehicle overheats. If you decide to look under the
hood yourself, see Section 7 of this manual. Follow
the warnings under the Cooling System Pressure
Cap paragraph.
104 INSTRUMENT PANEL AND CONTROLS

CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could dam-
age your engine.
Frequency Of Oil Change
Road conditions and your style of driving affect the
interval at which your oil should be changed. Check the
following to determine if any apply to you:
²Day or night temperatures are below 32ÉF (0ÉC).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions
²Short trips of less than 10 miles (16.2 km)
²More than 50% of your driving is at sustained high
speeds during hot weather, above 32ÉC (90ÉF)
²Trailer towing
²Taxi, Police or delivery service (commercial service)
²Off-road or desert operation
²If equipped for and operating with E-85 (ethanol)
fuel.
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule ªBº of the
9Maintenance Schedules9section of this manual.
If none of these apply to you, then change your engine oil
at every interval shown on schedule9A9of the9Mainte-
nance Schedules9section of this manual.
4x4 Models, If Used Primarily For Off-Road
Operation
Every 50 hours of use.
MAINTAINING YOUR VEHICLE 227
7

Dusty Conditions
Driving through dust-laden air increases the problems of
keeping abrasive materials out of the engine. Under these
conditions, special attention should be given to the
engine air cleaner and the crankcase inlet air cleaner. The
crankcase ventilation system should also be checked
periodically. Make sure that these units are always clean.
This will tend to reduce to a minimum the amount of
abrasive material that may enter the engine.
Engine Oil Selection
For best performance and maximum protection under all
types of operating conditions, the manufacture only
recommends engine oils that are API certified and meet
the requirements of DaimlerChrysler Material Standard
MS-6395. Use Mopar or an equivalent oil meeting the
specification MS-6395.
American Petroleum Institute (API) Oil
Identification Symbol
There is a symbol to aid you in selecting the proper
engine oil.This symbol means that the oil has
been certified by the American
Petroleum Institute (API). The
manufacture only recommends
API Certified engine oils that
meet the requirements of
DaimlerChrysler Material Stan-
dard MS-6395. Use Mopar or an
equivalent oil meeting the specifi-
cation MS-6395.
Engine Oil Viscosity Chart
The proper SAE viscosity grade of engine oil should be
selected based on the following recommendation and be
within the operating temperature shown in the recom-
mended SAE viscosity chart.
²SAE 5W-30 is the oil recommended in trucks equipped
with a 3.7L/4.7L engine, for optimum fuel economy.
²Synthetic engine oils may be used provided that the oil
quality requirements described above are met and the
recommended maintenance intervals for oil and filter
changes are followed.
228 MAINTAINING YOUR VEHICLE

Operation of the wipers on dry glass for long periods
may cause deterioration of the wiper blades. Always use
washer fluid when using the wipers to remove salt or dirt
from a dry windshield.
Avoid using the wiper blades to remove frost or ice from
the windshield. Keep the blade rubber out of contact with
petroleum products such as engine oil, gasoline, etc.
Windshield Washers
The fluid reservoir should be checked for fluid level at
regular intervals. When freezing weather is anticipated,
flush out the water in the reservoir by operating the
system. Fill the reservoir with windshield washer anti-
freeze (not radiator antifreeze), and operate the system
for a few seconds to flush out the residual water.
To prevent freeze-up of your windshield washer system
in cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This
rating information can be found on most washer fluid
containers.
WARNING!
Commercially available windshield washer solvents
are flammable. They could ignite and burn you. Care
must be exercised when filling or working around
the washer solution.
After the engine has warmed, operate the defroster for a
few minutes to reduce the possibility of smearing or
freezing the fluid on the cold windshield. Mopar All
Weather Windshield Washer Solution used with water as
directed on the container, aids cleaning action, reduces
freezing point to avoid line clogging, and is not harmful
to paint or trim.
Exhaust System
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
236 MAINTAINING YOUR VEHICLE

Whenever a change is noticed in the sound of the exhaust
system, when exhaust fumes can be detected inside the
vehicle, or when the underside or rear of the vehicle is
damaged, have a competent mechanic inspect the com-
plete exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned parts. Open
seams or loose connections could permit exhaust fumes
to seep into the passenger compartment. In addition,
inspect the exhaust system each time the vehicle is raised
for lubrication or oil change. Replace as required.
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO) which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing CO, fol-
low the preceding safety tips.
Cooling System
Inspection
Coolant protection checks should be made at every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
coolant. Check face of radiator for any accumulation of
bugs, leaves, etc. If dirty, clean the radiator core by gently
spraying water from a garden hose at the back of the core.
Check the reserve tank tubing for condition and tightness
of connection at reserve tank and radiator. Inspect the
entire system for leaks.
With the engine at normal operating temperature (but
not running), check the coolant pressure cap for proper
vacuum sealing by draining a small amount of coolant
from the radiator drain cock. If the cap is sealing prop-
erly, the coolant will begin to drain from the reserve tank.
Do not remove the pressure cap when the cooling system
is hot.
MAINTAINING YOUR VEHICLE 237
7

3. Fully apply the parking brake and press the brake
pedal.
4. Place the gear selector momentarily in each gear
position ending with the lever in P (Park).
5. Remove the dipstick, wipe it clean and reinsert it until
seated.
6. Remove the dipstick again and note the fluid level on
both sides. The fluid level should be between the ªHOTº
(upper) reference holes on the dipstick at normal operat-
ing temperature. Verify that solid coating of oil is seen onboth sides of the dipstick. If the fluid is low, add as
required into the dipstick tube.Do not overfill.After
adding any quantity of oil through the oil fill tube, wait
a minimum of two (2) minutes for the oil to fully drain
into the transmission before rechecking the fluid level.
NOTE:If it is necessary to check the transmission
belowthe operating temperature, the fluid level should
be between the two ªCOLDº (lower) holes on the dip-
stick with the fluid at approximately 70ÉF (21ÉC) (room
temperature). If the fluid level is correctly established at
room temperature, it should be between the ªHOTº
(upper) reference holes when the transmission reaches
180ÉF ( 82ÉC). Remember it is best to check the level at the
normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below 50ÉF
(10ÉC) it may not register on the dipstick. Do not add
fluid until the temperature is elevated enough to
produce an accurate reading.
246 MAINTAINING YOUR VEHICLE

NOTE:If you are leaving your vehicle dormant for
longer than 21 days, you may want to take steps to
protect your battery. You may do this by disconnecting
the battery or by disconnecting the ignition-off draw
(I.O.D.) fuse in cavity #12. The I.O.D. cavity includes a
snap-in retainer that allows the fuse to be disconnected,
without removing it from the fuse block. Pressing the
I.O.D. fuse back into the cavity reconnects it.
VEHICLE STORAGE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to mini-
mize the drain on your vehicle's battery:
²Disconnect the Ignition-Off Draw fuse (I.O.D.) fuse
located in cavity #12 of the fuse block. The I.O.D.
cavity includes a snap-in retainer that allows the fuse
to be disconnected, without removing it from the fuse
block.
²The transfer case should be placed in the 4HI mode
and kept in this position to minimize the battery drain.
²As an alternative to the above steps you may discon-
nect the negative cable from the battery.
REPLACEMENT LIGHT BULBS
LIGHT BULBS Ð Inside Bulb No.
A/C Control............................. 74
Ash Tray.............................. 161
Brake System Warning Indicator.............. 194
Dome Light............................ 579
EGR Reminder.......................... 194
Glove Box.............................. 194
Heater Control.......................... 158
High Beam Indicator...................... 194
Instrument Cluster........................ 194
Low Fuel Indicator....................... 194
Low Washer Fluid Indicator................. 194
Oil Indicator............................ 194
Overhead Console........................ 578
Seat Belt Indicator........................ 194
Switched Dome.......................... 578
Temperature Indicator..................... 194
Turn Signals............................ 194
Underhood Light......................... 561
4x4 Shift Indicator........................ 161
254 MAINTAINING YOUR VEHICLE