Air Suspension Modes
The air suspension system has multiple modes to protect
the system in unique situations:
Tire/Jack Mode
To assist with changing a tire, the air suspension system
has a feature which allows the automatic leveling to be
disabled. This mode is intended to be enabled with engine
running. Refer to “Instrument Cluster Display” in “Under-
standing Your Instrument Panel” or “Uconnect Settings” in
“Understanding Your Instrument Panel” if equipped with
a touch screen radio for further information.
NOTE:This mode is intended to be enabled with engine
running.
Transport Mode
For towing your vehicle with four wheels off the road, the
air suspension system has a feature which will put the
vehicle below Normal Ride Height (NRH) and disable the
automatic load leveling system. This mode is intended to
be enabled with engine running. Refer to “Instrument
Cluster Display” in “Understanding Your Instrument
Panel” or “Uconnect Settings” in “Understanding Your
Instrument Panel” if equipped with a touch screen radio
for further information. NOTE:
This mode is intended to be enabled with engine
running.
Wheel Alignment Mode
Before performing a wheel alignment this mode must be
enabled. Refer to “Instrument Cluster Display” in “Under-
standing Your Instrument Panel” or “Uconnect Settings” in
“Understanding Your Instrument Panel” if equipped with
a touch screen radio for further information.
NOTE: This mode is intended to be enabled with engine
running.
Protection Strategy
In order to “protect” the air suspension system, the vehicle
will disable load leveling as required (suspension over-
loaded, battery charge low, etc.). Load leveling will auto-
matically resume as soon as system operation requirements
are met. See your authorized dealer if system does not
resume.
452 STARTING AND OPERATING
deep water unless you ingested water into the engine air
intake. If the engine stalls do not attempt to restart it.
Determine if it has ingested water first. The key to any
crossing is low and slow. You want to use first gear in 4L
(Low Range) and proceed very slowly with a constant slow
speed (3-5 mph [5–8 km/h] maximum) and light throttle.
Keep the vehicle moving; do not try to accelerate through
the crossing. After crossing any water higher than the
bottom of the axle differentials, you should inspect all of
the vehicle fluids for signs of water ingestion.
CAUTION!
Water ingestion into the axles, transmission, transfer
case, engine or vehicle interior can occur if you drive
too fast or through too deep of water. Water can cause
permanent damage to engine, driveline or other ve-
hicle components and your brakes will be less effec-
tive once wet and/or muddy.
• Before You Cross Any Type Of Water – As you ap-
proach any type of water you need to determine if you
can cross it safely and responsibly. If necessary, get out
and walk through the water or probe it with a stick. You
need to be sure of its depth, approach angle, current and
bottom condition. Be careful of murky or muddy waters, check for hidden obstacles. Make sure you will not be
intruding on any wildlife and you can recover the
vehicle if necessary. The key to a safe crossing is the
water depth, current and bottom conditions. On soft
bottoms the vehicle will sink in, effectively increasing
the water level on the vehicle. Be sure to consider this
when determining the depth and the ability to safely
cross.
• Crossing Puddles, Pools, Flooded Areas Or Other
Standing Water – Puddles, pools, flooded or other
standing water areas normally contain murky or muddy
waters. These water types normally contain hidden
obstacles and make it difficult to determine an accurate
water depth, approach angle, and bottom condition.
Murky or muddy water holes are where you want to
hook up tow straps prior to entering. This makes for a
faster, cleaner and easier vehicle recovery. If you are able
to determine you can safely cross, than proceed using
the low and slow method.
CAUTION!
Muddy waters can reduce the cooling system effective-
ness by depositing debris onto the radiator.
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STARTING AND OPERATING 465
CAUTION!
Reduced tire pressure increases the risk of tire damage
and may cause tire unseating with total loss of air
pressure. To reduce the risk of tire unseating, while at
a reduced tire pressure, drive at slower speeds and
avoid sharp turns or abrupt maneuvers.
Vehicle Recovery
If you drive off-road, you may encounter a situation where
you will need to recover your vehicle. Vehicle recovery
should always be given consideration before attempting a
questionable obstacle. You should never go off-road driv-
ing without the ability to recover your vehicle from a
situation. Having another vehicle with you usually works
best for most situations. The first thing to do is assess the
situation. Why are you stuck? Are you hung up on
something? Would it be easier to go forward or to go
backward? Can you still move the vehicle? Is there an
anchor point to winch to? Are you alone or do you have
another vehicle to help? Is there high risk of vehicle
damage during the recovery process? Answering these
questions will help you determine the best method of
recovery. If you can still move the vehicle slightly and the
only issue is slick ground, then rock cycling your vehiclewould be the first choice. If you have ample room, an
additional vehicle and there is low risk of vehicle impinge-
ment on the surroundings, then using a tow strap to the
vehicle tow hooks would be fast and easy. If the vehicle is
severely hung up or in a situation where great care needs
to be taken during the recovery, then nothing can do the job
better than a winch. If you are severely hung up on
something you should jack the vehicle up and stack
something under the wheels to allow the vehicle to roll off
the object without causing further damage. This should be
tried before attempting any recovery method.
CAUTION!
Pulling the vehicle off an obstacle, without first clear-
ing the object, may result in additional underbody
damage.
• Rock Cycling Your Vehicle – Rock cycling your vehicle
is one of the easiest, fastest and most commonly used
methods. This simply involves shifting your vehicle
from DRIVE to REVERSE, while applying throttle after
each shift. During this process, for additional traction,
try turning your steering wheel quickly left and right no
more than a ¼ turn. If you are stuck in mud, sand, or
snow try spinning your tires during this process to clean
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STARTING AND OPERATING 467
the debris from the tread and improve the traction. You
want to create a rocking motion with the vehicle. This
helps build vehicle momentum, which hopefully gets
you out. Remember to ease off and on the accelerator
before and after the shift. If after a few rock cycles your
vehicle is not free, stop and try another method of
recovery. Continuous rock cycling will only cause un-
necessary damage to your vehicle and the environment.
CAUTION!
Damage can occur when spinning your tires at an
excessive high speed. Do not spin your tires faster than
an indicated 30 mph (48 km/h).
• Using The Tow Hooks With A Tow Strap – Tow straps
are a quick and easy way to recover your vehicle from
minor situations if you have a secondary vehicle which
is not stuck. The tow hooks on your vehicle are designed
to take the abusive force generated during vehicle
recovery. Do not use the bumper or any other vehicle
component as an attachment point. Using tow straps
requires coordination between the two drivers. Good
communication and line of sight are required for a safe
recovery. First connect the tow strap to the correct
attachment points on both vehicles. There should be at least 20 to 30 feet (6 to 9 meters) between the vehicles to
allow for a safe recovery. If necessary join two tow straps
together usinga1½inch hard wood dowel. This will
keep the straps from becoming knotted and is safer than
using a clevis pin if the strap breaks. Next have the tow
vehicle backup, leaving two to three feet worth of slack
in the strap. Then the tow vehicle, using light throttle,
should accelerate tightening the strap providing the
pulling force needed to free the vehicle. The vehicle
being recovered should assist in the recovery, at the time
of the snap, by slowly spinning the tires in the same
direction as the pulling vehicle. After the vehicle be-
comes free, the driver of the previously stuck vehicle
should signal they are free and should hit their brakes
stopping both vehicles. The driver of the pulling vehicle
should let off the throttle without using the brakes, once
signaled by the other driver. This sequence is important
to avoid having the recovered vehicle hit the pulling
vehicle.
468 STARTING AND OPERATING
WARNING!
Never use tow straps with end hooks or link two straps
with a clevis pin. These heavy metal objects could become
projectiles if a strap breaks, which could cause severe
injury. Never leave more than 2 to 3 feet (.6 to 1 meter) of
slack in the strap. More slack than this greatly increases
the risk of injury and vehicle damage. Always keep
everyone at least 30 feet (9 meters) away from a strapping
or winching situation.
•Winching (Refer To “Winch Operation” For Additional
Information) –
Winching is most commonly used in the
following situations: there is no support vehicle available,
a high controlled force is required to recover the vehicle,
there is a high risk of environmental or vehicle damage, or
where nothing else seems to work. A winch can deliver a
high pulling force with a great deal of control. It allows
you to walk the vehicle out of the situation in a slow
controlled manner. This control works well for avoiding
further vehicle damage. Once you decide it is time to use
the winch look for a good anchor point. It needs to be
strong enough to hold more than the vehicle’s weight and
provide a direction of pull as straight as possible. Use
block and tackle if necessary to improve the angle of pull
or increase the winch’s pulling force. If the anchor point is a tree use a strap around its base and hook the cable to the
strap. If it is another vehicle, then place that vehicle in
PARK and block the front tires. If you cannot find an
anchor point within reach try using your spare tire by
burying it. Once you have determined an anchor point
hook up the cable, ensuring there are a least five wraps of
cable left on the drum, and place a floor mat or something
else over the strung out cable. Placing something over the
strung out cable helps keep the cable on the ground if it
breaks. Next, place the vehicle in first gear and apply a
very light throttle as you power the winch in. Be careful
not to allow slack in the cable as you recover the vehicle.
Do not try to guide the cable into the drum. If it starts to
bunch up on one end, let it. You can re-spool the cable
afterwards. Never use a winch cable as a tow strap and
always stand back while winching.
WARNING!
Winch cables are under high tension when in use and
can become a projectile if they fail. Never stand over or
straddle the winch cable. Never jerk or overload the
winch cable. Never stand in front of the vehicle while
winching. Failure to follow these instructions can result
in serious or fatal injury.
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STARTING AND OPERATING 469
Operating Your Winch
WARNING!
Failure to observe any of these warnings regarding
proper winch usage may result in severe injury.
•Always use supplied hook strap to hold the hook
when spooling wire rope in or out.
• Never use as a hoist.
• Never use to move persons.
• Never exceed winch or wire rope rated capacity.
• Always wear heavy leather gloves when handling
the wire rope.
• Never touch wire rope or hook while in tension or
under load.
• Never engage or disengage clutch if winch is under
load, wire rope is in tension, or wire rope drum is
moving.
• Always stand clear of wire rope and load and keep
others away during winching.
• Always keep hands and clothing clear of the wire
rope, hook and fairlead opening during operation
and when spooling.
(Continued)
WARNING! (Continued)
•Never wrap wire rope back onto itself. Always use a
choker chain, wire choker rope or tree trunk protec-
tor on the anchor.
• Never attach a recovery strap to the winch hook to
increase the length of a pull.
• Never attempt to tow a vehicle with the recovery
strap attached directly to the winch hook.
• Never use bungeestraps that develop tremendous
and potentially dangerous amounts of force when
stretched.
• Always disconnect the remote control when not in
use.
• Never winch when there are less than five wraps of
wire rope around the winch drum.
• Always pass remote control through a window to
avoid pinching lead in door, when using remote
inside a vehicle.
• Never leave the remote control plugged into the
winch while free spooling, rigging or sitting idle.
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STARTING AND OPERATING 479
WARNING!
To prevent serious injury, NEVER put your fingers
inside the hook area as you are powering-in.
NOTE: How to spool under no load: Arrange the remote
control lead so it cannot be caught in the winch. Arrange
the wire rope so it will not kink or tangle when spooled. Be
sure any wire rope already on the spooling drum is wound
tightly and evenly layered. Tighten and straighten the layer
if necessary. Keep the wire rope under light tension and
spool the wire rope back and onto the winch drum in even
layers. Stop frequently to tighten and straighten the layers
as necessary. Repeat this process until the winch hook is the
same distance as the full length of the remote control from
the winch. Pinch the hook between your thumb and
forefinger and attach the hook strap. Hold the hook strap
between the thumb and forefinger to keep tension on the
wire rope. Walk the wire rope towards the fairlead, care-
fully spooling in the remaining wire rope. By pulsing the
remote control switch. 18. Store the hook on the most outboard loop of the tow
hook.
19. Disconnect the remote control. Disconnect the remote control cord from the control box and store in a clean
and dry place. Winching operations are now complete.
Put the cap on the solenoid plug-in.
NOTE: Always store the remote control in a protected,
clean, dry area.
Hook In Stored Position
488 STARTING AND OPERATING
Double Line
Because pulling power decreases with the number of layers
of wire rope on the winch drum, you can use a snatch block
to double line out more wire rope. This decreases the
number of layers of wire rope on the drum, and increases
pulling power. Start by feeding out enough wire rope to
free the winch hook. Attach the hook to your vehicle’s
frame/tow hook and run the wire rope through a snatch
block. Disengage the clutch and, using the snatch block,
pull out enough wire to reach your anchor point. Do not
attach the hook to the mounting kit. Secure to the anchorpoint with a tree trunk protector or choker chain. Attach
the clevis/shackle. Attach the shackle to the two ends of
the strap/chain, being careful not to over tighten (tighten
and back-off 1/2 turn).
POWER STEERING
Electric Power Steering — 1500 Models
The electric power steering system will give you good
vehicle response and increased ease of maneuverability in
tight spaces. The system will vary its assist to provide light
efforts while parking and good feel while driving. If the
electric steering system experiences a fault that prevents it
from providing assist, you will still have the ability to steer
the vehicle manually.
If the Steering icon is flashing, it indicates that the vehicle
needs to be taken to the dealer for service. It is likely the
vehicle has lost power steering assistance.
If the Steering icon is displayed and the “POWER STEER-
ING SYSTEM OVER TEMP” message is displayed on the
instrument cluster screen, they indicate that extreme steer-
ing maneuvers may have occurred which caused an over
temperature condition in the power steering system. Once
driving conditions are safe, pull over and let the vehicle
idle for a few moments until the icon and message turn off.
Wire Rope Routing
490 STARTING AND OPERATING