
soils. If possible transverse the incline at an angle
heading slightly up or down.
WARNING!
Driving across an incline increases the risk of a
rollover , which may result in severe injury.
•If You Stall Or Begin To Lose Headway– If you stall
or begin to lose headway while climbing a steep hill,
allow your vehicle to come to a stop and immediately
apply the brake. Restart the engine and shift into
REVERSE. Back slowly down the hill allowing the
compression braking of the engine and transmission to
help regulate your speed. If the brakes are required to
control vehicle speed, apply them lightly and avoid
locking or skidding the tires.
WARNING!
If the engine stalls or you lose headway or cannot
make it to the top of a steep hill or grade, never attempt
to turn around. To do so may result in tipping and
rolling the vehicle, which may result in severe injury.
Always back carefully straight down a hill in RE-
VERSE. Never back down a hill in NEUTRAL using
only the vehicle brakes. Never drive diagonally across
a hill, always drive straight up or down.
Driving Through Water
Extreme care should be taken crossing any type of water.
Water crossings should be avoided if possible and only
be attempted when necessary, in a safe responsible
manner. You should only drive through areas which are
designated and approved. You should tread lightly and
avoid damage to the environment. You should know
your vehicle’s abilities and be able to recover it if
542 STARTING AND OPERATING

something goes wrong. You should never stop or shut a
vehicle off when crossing 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
(Continued)
CAUTION!(Continued)
permanent damage to engine, driveline or other
vehicle components and your brakes will be less
effective once wet and/or muddy.
•Before You Cross Any Type Of Water–Asyou
approach 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 con-
ditions. 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.
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STARTING AND OPERATING 543

vehicle becomes 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 pull-
ing vehicle should let off the throttle without using the
brakes, once signaled by the other driver. This se-
quence is important to avoid having the recovered
vehicle hit the pulling vehicle.
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 two
or three feet of slack in the strap. More slack than this
greatly increases the risk of injury and vehicle dam-
age. Always keep everyone at least 30 feet away from
a strapping or winching situation.
•Winching (Refer To “Winch Operation” For Addi-
tional 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
548 STARTING AND OPERATING

•Inspect the radiator for mud and debris and clean as
required.
•Check threaded fasteners for looseness, particularly on
the chassis, drivetrain components, steering, and sus-
pension. Retighten them, if required, and torque to the
values specified in the Service Manual.
•Check for accumulations of plants or brush. These
things could be a fire hazard. They might hide damage
to fuel lines, brake hoses, axle pinion seals, and
propeller shafts.
•After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
•If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
550 STARTING AND OPERATING

DRIVING THROUGH WATER
Driving through water more than a few inches/
centimeters deep will require extra caution to ensure
safety and prevent damage to your vehicle.
Flowing/Rising Water
WARNING!
Do not drive on or across a road or path where water
is flowing and/or rising (as in storm run-off). Flow-
ing water can wear away the road or path’s surface
and cause your vehicle to sink into deeper water.
Furthermore, flowing and/or rising water can carry
your vehicle away swiftly. Failure to follow this
warning may result in injuries that are serious or
fatal to you, your passengers, and others around you.
Shallow Standing Water
Although your vehicle is capable of driving through
shallow standing water, consider the following Cautions
and Warnings before doing so.
WARNING!
•Driving through standing water limits your vehi-
cle’s traction capabilities. Do not exceed 5 mph
(8 km/h) when driving through standing water.
•Driving through standing water limits your vehi-
cle’s braking capabilities, which increases stopping
distances. Therefore, after driving through stand-
ing water, drive slowly and lightly press on the
brake pedal several times to dry the brakes.
•Failure to follow these warnings may result in
injuries that are serious or fatal to you, your pas-
sengers, and others around you.
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STARTING AND OPERATING 553

•After extended operation in mud, sand, water, or
similar dirty conditions, have the radiator, fan, brake
rotors, wheels, brake linings, and axle yokes inspected
and cleaned as soon as possible.
WARNING!
Abrasive material in any part of the brakes may cause
excessive wear or unpredictable braking. You might
not have full braking power when you need it to
prevent a collision. If you have been operating your
vehicle in dirty conditions, get your brakes checked
and cleaned as necessary.
•If you experience unusual vibration after driving in
mud, slush or similar conditions, check the wheels for
impacted material. Impacted material can cause a
wheel imbalance and freeing the wheels of it will
correct the situation.
WINCH USAGE — POWER WAGON ONLY — (IF
EQUIPPED)
Things To Know Before Using Your Winch
General Winch Information
Your vehicle is equipped with an electric vehicle recovery
winch. This winch uses the electrical power from the
vehicle charging system to power a motor that winds
wire rope into the winch drum via planetary gear reduc-
tion. By nature, a winch is capable of generating very
high forces and should be used with care. Do not operate
the winch without reading and understanding the com-
plete winch owner’s manual.
Tensioning The Wire Rope
The winch rope must be properly tensioned before use.
Follow the instructions below to tension the rope:
1. Un-spool the wire rope leaving five wraps of rope on
the winch drum.
556 STARTING AND OPERATING

NOTE:
•Avoid overheating the winch motor. For extended
winching, stop at reasonable intervals to allow the
winch motor to cool down.
•What to look for under load:The wire rope must
always spool onto the drum as indicated by the
drum rotation decal on the winch. As you power-in,
make sure the wire rope winds evenly and tightly on
the drum. This prevents the outer wire wraps from
drawing into the inner wraps, binding and damag-
ing the wire rope. Avoid shock loads by using the
control switch intermittently to take up wire rope
slack. Shock loads can momentarily far exceed the
winch and wire rope ratings. During side pulls the
wire rope tends to stack up at one end of the drum.
This stack can become large enough to cause serious
damage to the winch. So, line up pulls as straight
ahead as possible and stop winching if the wire rope
comes close to the tie rods or mounting plate. To fix
an uneven stack, spool out that section of the rope
and reposition it to the opposite end of the drum,
which will free up space for continued winching.
15. Secure vehicle. Once recovery of the vehicle is com-
plete, be sure to secure the vehicle’s brakes and shift
the transmission to PARK. Release tension in the wire
rope.
16. Disconnect the wire rope, and disconnect from the
anchor.
17. Rewind the wire rope. The person handling the wire
rope should walk the rope in and not let it slide
through the hand, control the winch at all times.
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BRAKE SYSTEM
If power assist is lost for any reason (for example,
repeated brake applications with the engine off), the
brakes will still function. However, you will experience a
substantial increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses normal
braking capability, the remaining system will still func-
tion with some loss of overall braking effectiveness. This
will be evident by increased pedal travel during applica-
tion, greater pedal force required to slow or stop, and
activation of the “Brake Warning Light” and the “ABS
Warning Light” (if equipped) during brake use.
Hydraulic Brake Assist — 2500/3500 Models Only
(Except Power Wagon)
The brake system power assist is provided by a hydro-boost
unit which shares fluid with the power steering system. You
may experience some clicking or hissing noises from the
hydro-boost system during hard braking conditions.
NOTE:Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid reaches
operating temperature.
ELECTRONIC BRAKE CONTROL SYSTEM
Your vehicle is equipped with an advanced electronic
brake control system that includes Anti-Lock Brake System
(ABS), Traction Control System (TCS), Brake Assist System
(BAS), Electronic Roll Mitigation (ERM), Hill Start Assist
(HSA), Electronic Stability Control (ESC), Trailer Sway
Control (TSC) and Hill Decent Control (HDC [Power
Wagon only]). All of the systems work together to enhance
vehicle stability and control in various driving conditions,
and are commonly referred to as ESC.
Anti-Lock Brake System (ABS)
The Four-Wheel Anti-Lock Brake System (ABS) is de-
signed to aid the driver in maintaining vehicle control
under adverse braking conditions. The system operates
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