NOTE:Even if the transmission can be reset, we recom-
mend that you visit your authorized dealer at your earliest
possible convenience. Your authorized dealer has diagnos-
tic equipment to assess the condition of your transmission.
If the transmission cannot be reset, authorized dealer
service is required.
Electronic Range Select (ERS) Operation —
Eight-Speed Transmission
The Electronic Range Select (ERS) shift control allows the
driver to limit the highest available gear when the trans-
mission is in DRIVE. For example, if you set the transmis-
sion gear limit to 4 (fourth gear), the transmission will not
shift above fourth gear (except to prevent engine over-
speed), but will shift through the lower gears normally.
You can switch between DRIVE and ERS mode at any
vehicle speed. When the transmission gear selector is in
DRIVE, the transmission will operate automatically, shift-
ing between all available gears. Tapping the GEAR- switch
(on the steering wheel) will activate ERS mode, display the
current gear in the instrument cluster, and set that gear as
the top available gear. Once in ERS mode, tapping the
GEAR- or GEAR+ switch will change the top available
gear. To exit ERS mode, simply push and hold the GEAR+
switch until the gear limit display disappears from the
instrument cluster.
WARNING!
Do not downshift for additional engine braking on a
slippery surface. The drive wheels could lose their grip
and the vehicle could skid, causing a collision or
personal injury.
1 — GEAR - Switch
2 — GEAR + Switch
6
STARTING AND OPERATING 305
When to Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting occurs,
push the TOW/HAUL switch to activate TOW/HAUL
mode. This will improve performance and reduce the
potential for transmission overheating or failure due to
excessive shifting.
The “TOW/HAUL Indicator Light” will illuminate in the
instrument cluster to indicate that TOW/HAUL mode has
been activated. Pushing the switch a second time restores
normal operation. Normal operation is always the defaultat engine start-up. If TOW/HAUL mode is desired, the
switch must be pushed each time the engine is started.
WARNING!
Do not use the “TOW/HAUL” feature when driving in
icy or slippery conditions. The increased engine brak-
ing can cause the rear wheels to slide, and the vehicle
to swing around with the possible loss of vehicle
control, which may cause an accident possibly result-
ing in personal injury or death.
Six-Speed Automatic Transmission — 1500 Models
Only (If Equipped)
The transmission gear position display (located in the
instrument cluster) indicates the transmission gear range.
The gear selector is mounted either on the right side of the
steering column (if equipped) or on the console (if
equipped). You must press the brake pedal to move the
gear selector out of PARK (refer to “Brake/Transmission
Shift Interlock System” in this section). To drive, move the
gear selector from PARK or NEUTRAL to the DRIVE
position. Pull the gear selector toward you when shifting
into REVERSE or PARK, or when shifting out of PARK
(column shift only).
TOW/HAUL Switch
306 STARTING AND OPERATING
WARNING!
Do not use the “TOW/HAUL” feature when driving in
icy or slippery conditions. The increased engine brak-
ing can cause the rear wheels to slide, and the vehicle
to swing around with the possible loss of vehicle
control, which may cause an accident possibly result-
ing in personal injury or death.
Torque Converter Clutch
A feature designed to improve fuel economy has been
included in the automatic transmission on your vehicle. A
clutch within the torque converter engages automatically
at calibrated speeds. This may result in a slightly different
feeling or response during normal operation in the upper
gears. When the vehicle speed drops or during some
accelerations, the clutch automatically disengages.
NOTE:
•The torque converter clutch will not engage, and the
transmission will not shift into the top overdrive gear,
until the transmission fluid and engine coolant are warm
[usually after 1 to 3 miles (2 to 5 km) of driving]. Because
top gear is disabled, and the engine speed is higher
when the torque converter clutch is not engaged, it may seem as if the transmission is not shifting properly when
cold. This is normal. Using the Electronic Range Select
(ERS) shift control, when the transmission is sufficiently
warm, will demonstrate that the transmission is able to
shift into and out of Overdrive.
• If the vehicle has not been driven for several days, the
first few seconds of operation after shifting the transmis-
sion into gear may seem sluggish. This is due to the fluid
partially draining from the torque converter into the
transmission. This condition is normal and will not
cause damage to the transmission. The torque converter
will refill within five seconds after starting the engine.
Six-Speed Automatic Transmission — 2500/3500
Models Only
The transmission gear position display (located in the
instrument cluster) indicates the transmission gear range.
The gear selector is mounted on the right side of the
steering column. You must press the brake pedal to move
the gear selector out of PARK (refer to “Brake/
Transmission Shift Interlock System” in this section for
further information). To drive, move the gear selector from
PARK or NEUTRAL to the DRIVE position. Pull the gear
selector toward you when shifting into REVERSE or PARK,
or when shifting out of PARK.
6
STARTING AND OPERATING 315
The locking axles are controlled by the axle locker switch.
The switch has three positions:
•AXLE UNLOCK – the front and rear axles are unlocked
• REAR LOCK – the rear axle is locked
• FRONT/REAR LOCK – the front and rear axles are
locked
Under normal driving conditions, the switch should be left
in the AXLE UNLOCK position.
NOTE: Even when the axles are in the AXLE UNLOCK
position, the limited slip differential in the rear axle still
provides torque biasing capability for moderate low trac-
tion environments.
During the command to lock the axle, the indicator light
will flash until the axle is locked. After the lock command
has been successfully executed, the light will remain on
solid.
To lock the rear axle, place the vehicle in 4LO. Refer to
“Four Wheel Drive Operation” in “Starting And Operat-
ing” for further information. Move the axle locker switch
position to REAR LOCK while traveling less than 3 mph
(5 km/h). The RR indicator light will remain on when the
rear axle is locked. NOTE:
Left to right wheel speed difference may be neces-
sary to allow the axle to fully lock. If the indicator light is
flashing after placing the switch in the REAR LOCK or
FRONT/REAR LOCK position, drive the vehicle in a turn
or on loose gravel to expedite the locking action.
WARNING!
Do not use the locked axle position for normal driving.
A locked front axle is intended for off-road driving
only. Locking the front axle during on-road driving
will reduce the steering ability. This could cause a
collision and you may be seriously injured.
To lock the front axle; move the axle locker switch to
FRONT/REAR LOCK while traveling less than 3 mph
(5 km/h). The indicator light will be solid when the front
axle is locked.
NOTE: The rear axle must be locked before the front axle
will lock.
To unlock the front axle; move the axle locker switch to
REAR LOCK. The FRONT/REAR LOCK indicator light
will go out when the axle is unlocked.
360 STARTING AND OPERATING
NOTE:The axle lockers could be torque locked due to side
to side loads on the axle. Driving slowly while turning the
steering wheel from a left hand turn to a right hand turn or
driving in REVERSE for a short distance may be required
to release the torque lock and unlock the axles.
To unlock the rear axle; move the axle locker switch to
AXLE UNLOCK. The REAR LOCK indicator light will go
out when the rear axle is unlocked.
STABILIZER/SWAY BAR SYSTEM — POWER
WAGON ONLY
Your vehicle is equipped with an electronic disconnecting
stabilizer/sway bar. This system allows greater front sus-
pension travel in off-road situations.
Due to the use of taller springs, this vehicle has an
increased ride height of approximately 1.9 in (48.3 mm) in
the front and 1.5 in (38.1 mm) in the rear. A major
advantage to increasing ride height is the positive effect it
has on approach/departure and break over angles.
This system is controlled by the electronic control sway bar
switch located on the instrument panel. The switch has two positions; On-Road and Off-Road. The
system is normally in the On-Road mode, indicated by a
solid green light. The stabilizer/sway bar should remain in
the On-Road mode during normal driving conditions.
WARNING!
Do not disconnect the stabilizer bar and drive on hard
surfaced roads or at speeds above 18 mph (29 km/h),
you may lose control of the vehicle, which could result
in serious injury or death. The front stabilizer bar
(Continued)
Sway Bar Disconnect Buttons
6
STARTING AND OPERATING 361
The National Forest Service, Bureau of Land Management,
or local Department of Natural Resources are a wealth of
information and usually have maps with marked trails.
Skid Plates And Underbody Protection
Steel skid plates protect the major driveline components of
the truck including the fuel tank, transfer case and steering
damper. In addition, this vehicle is equipped with boxed
cross members and fore/aft rails. This additional protec-
tion allows the vehicle to be utilized in severe off-road
situations that would be considered impassable by a nor-
mal truck.
Ramp Travel Index (RTI)
The ramp travel index is the distance, in inches, that you
can drive your vehicle with one wheel on a 20-degree ramp
without lifting any other wheel off the ground. This
distance up the ramp divided by the wheelbase of the
vehicle and multiplied by 1,000 is the RTI. This vehicle has
an RTI of 510, which means you can articulate one front
wheel 26 inches (66 cm) in the air while the other three
wheels remain in contact with the ground.
Water Fording Characteristics
Water fording characteristic is the vehicle’s ability to cross
a body of still water, where the powertrain and drivetrainare safe from water ingestion. This vehicle has high water
fording characteristics with the ability to cross a pool of
water, without stopping, 24 inches (60 cm) deep at a
maximum speed of 10 mph (16 km/h) and a pool of water
30 inches (76 cm) deep at a maximum speed of 5 mph
(8 km/h), both with an entrance ramp angle of 1.3 degrees.
CAUTION!
The door sill height is 25 inches (63.5 cm). Water may
intrude into the interior of the vehicle at greater
depths.
Simultaneous Brake And Throttle Operation
Many off-road driving conditions require the simultaneous
use of the brake and throttle (two footed driving). When
climbing rocks, logs, or other stepped objects, using light
brake pressure with light throttle will keep the vehicle from
jerking or lurching. This technique is also used when you
need to stop and restart a vehicle on a steep incline.
The Basics Of Off-Road Driving
You will encounter many types of terrain driving off-road.
You should be familiar with the terrain and area before
proceeding. There are many types of surface conditions:
hard packed dirt, gravel, rocks, grass, sand, mud, snow
6
STARTING AND OPERATING 363
and ice. Every surface has a different effect on your
vehicle’s steering, handling and traction. Controlling your
vehicle is one of the keys to successful off-road driving, so
always keep a firm grip on the steering wheel and maintain
a good driving posture. Avoid sudden accelerations, turns
or braking. In most cases there are no road signs, posted
speed limits or signal lights. Therefore you will need to use
your own good judgment on what is safe and what isn’t.
When on a trail you should always be looking ahead for
surface obstacles and changes in terrain. The key is to plan
your future driving route while remembering what you are
currently driving over.
CAUTION!
Never park your vehicle over dry grass or other com-
bustible materials. The heat from your vehicle exhaust
system could cause a fire.
WARNING!
Always wear your seat belt and firmly tie down cargo.
Unsecured cargo can become projectiles in an off-road
situation.
When To Use Low Range
When driving off-road, shift into 4LO (Low Range) for
additional traction or to improve handling and control on
slippery or difficult terrain. Due to the lower gearing, low
range will allow the engine to operate in a higher power
range. This will allow you to idle over obstacles and down
hills, with improved control and less effort. Also, use 4LO
(Low Range) in rain, ice, snow, mud, sand, to get heavy
loads rolling, improve traction, or whenever 4HI (High
Range) traction will not do the job.
Driving In Snow, Mud And Sand
There is a drastic reduction in traction when driving in
snow, mud or sand. The vehicle will be less responsive to
steering, acceleration and braking inputs. Therefore you
should accelerate slowly, leave greater stopping distances
and avoid abrupt vehicle maneuvers. You want to keep a
slow constant steady pace. The key is to maintain the
vehicle’s momentum.
•Snow – In heavy snow or for additional control and
traction at slower speeds, shift the transmission to a low
gear and shift the transfer case to 4LO (Low Range) if
necessary. Do not shift to a lower gear than necessary to
maintain headway. Over-revving the engine can spin the
wheels and traction will be lost. If you start to slow to a
364 STARTING AND OPERATING
stop, try turning your steering wheel no more than a ¼
turn quickly back and forth, while still applying throttle.
This will allow the tires to get a freshbiteand help
maintain your momentum.
CAUTION!
On icy or slippery roads, do not downshift at high
engine RPMs or vehicle speeds because engine brak-
ing may cause skidding and loss of control.
• Mud – Deep mud creates a great deal of suction around
the tires and is very difficult to get through. You should
use 4LO (Low Range) with a gear low enough to
maintain your momentum without shifting. If you start
to slow to a stop, try turning your steering wheel no
more than a ¼ turn quickly back and forth for additional
traction. Mud holes pose an increased threat of vehicle
damage and getting stuck. They are normally full of
debris from previous vehicles getting stuck. As a good
practice before entering any mud hole, get out and
determine how deep it is, if there are any hidden
obstacles and if the vehicle can be safely recovered if
stuck. •
Sand – Soft sand is very difficult to travel through with
full tire pressure. When crossing soft sandy spots in a
trail maintain your vehicle’s momentum and do not
stop. The key to driving in soft sand using the appro-
priate tire pressure, accelerating slowly, avoiding abrupt
maneuvers and maintaining the vehicle’s momentum. If
you are going to be driving on large soft sandy areas or
dunes, reduce your tire pressure to a minimum of 15 psi
(103 kPa) to allow for a greater tire surface area. Reduced
tire pressure will drastically improve your traction and
handling, while driving on the soft sand, but you must
return the tires to normal air pressure before driving on
pavement or other hard surfaces. Be sure you have a
way to air the tires back up prior to reducing the
pressure.
CAUTION!
Reduced tire pressures may cause tire unseating and
total loss of air pressure. To reduce the risk of tire
unseating, while at a reduced tire pressure, reduce your
speed and avoid sharp turns or abrupt maneuvers.
6
STARTING AND OPERATING 365