2018 JEEP WRANGLER UNLIMITED Owner handbook (in English)

4. Disconnect the opposite end of the posi-
tive(+)jumper cable from the remote
positive(+)post of the discharged
vehicle.
5. Reinstall the protective cover over the
remote positive(+)post of the discharged
vehicle.
If frequent jump starting is required to start
your vehicle you should have the battery and
charging system tested at an authorized
dealer.
CAUTION!
Accessories plugged into the vehicle
power outlets draw power from the vehi-
cle’s battery, even when not in use (i.e.,
cellular devices, etc.). Eventually, if
plugged in long enough without engine
operation, the vehicle’s battery will dis-
charge sufficiently to degrade battery life
and/or prevent the engine from starting.
IF YOUR ENGINE
OVERHEATS
In any of the following situations, you can
reduce the potential for overheating by taking
the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, shift trans-
mission into NEUTRAL, but do not increase
engine idle speed.
CAUTION!
Driving with a hot cooling system could
damage your vehicle. If the temperature
gauge reads HOT (H), pull over and stop
the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer
drops back into the normal range. If the
pointer remains on HOT (H), and you hear
continuous chimes, turn the engine off
immediately and call for service.NOTE:
There are steps that you can take to slow
down an impending overheat condition:
• If your air conditioner (A/C) is on, turn it off.
The A/C system adds heat to the engine
cooling system and turning the A/C off can
help remove this heat.
• You can also turn the temperature control to
maximum heat, the mode control to floor
and the blower control to high. This allows
the heater core to act as a supplement to
the radiator and aids in removing heat from
the engine cooling system.WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open
the hood until the radiator has had time to
cool. Never try to open a cooling system
pressure cap when the radiator or coolant
bottle is hot.
199

MANUAL PARK RELEASE
WARNING!
Always secure your vehicle by fully apply-
ing the parking brake before activating the
Manual Park Release. In addition, you
should be seated in the driver’s seat with
your foot firmly on the brake pedal when
activating the Manual Park Release. Acti-
vating the Manual Park Release will allow
your vehicle to roll away if it is not secured
by the parking brake, or by proper connec-
tion to a tow vehicle. Activating the
Manual Park Release on an unsecured
vehicle could lead to serious injury or
death for those in or around the vehicle.
In order to push or tow the vehicle in cases
where the transmission will not shift out of
PARK (such as a dead battery), a Manual
Park Release is available.
Follow these steps to use the Manual Park
Release:
1. Firmly apply the parking brake.2. Remove the manual park release cover,
located above the gear selector, to access
the release tether strap.
3. Using a small screwdriver or similar tool,
fish the tether strap up through the open-
ing in the console base.4. Press and maintain firm pressure on the
brake pedal.
5. Pull the tether strap up and to the left
until the release lever locks into place in
the vertical position. The vehicle is now
out of PARK and can be moved. Release
the parking brake only when the vehicle is
securely connected to a tow vehicle.
Manual Park Release Cover
Tether Strap
IN CASE OF EMERGENCY
200

To Reset The Manual Park Release:
1. Pull upward on the tether strap, releasing
it from the “locked” position.
2. Lower the Manual Park Release lever
downward and to the right, into its original
position.
3. Tuck the tether strap into the base of the
console, and reinstall the cover.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left
to clear the area around the front wheels. For
vehicles with automatic transmission, push
and hold the lock button on the gear selector.
Then, shift back and forth between DRIVE
and REVERSE, while gently pressing the ac-
celerator. Use the least amount of accelerator
pedal pressure that will maintain the rocking
motion, without spinning the wheels or racing
the engine.NOTE:
• For vehicles with automatic transmission:
Shifts between DRIVE and REVERSE can
only be achieved at wheel speeds of 5 mph
(8 km/h) or less. Whenever the transmis-
sion remains in NEUTRAL for more than
2 seconds, you must press the brake pedal
to engage DRIVE or REVERSE.
• Push the "ESC Off" switch, to place the
Electronic Stability Control (ESC) system in
"Partial Off" mode, before rocking the ve-
hicle. Refer to “Electronic Brake Control
System” in “Safety” in your Owner’s
Manual for further details. Once the vehicle
has been freed, push the "ESC Off" switch
again to restore "ESC On" mode.
WARNING!
Fast spinning tires can be dangerous.
Forces generated by excessive wheel
speeds may cause damage, or even failure,
of the axle and tires. A tire could explode
and injure someone. Do not spin your ve-
hicle's wheels faster than 30 mph
(48 km/h) or for longer than 30 seconds
continuously without stopping when you
WARNING!
are stuck and do not let anyone near a
spinning wheel, no matter what the speed.
CAUTION!
• Racing the engine or spinning the
wheels may lead to transmission over-
heating and failure. Allow the engine to
idle with the transmission in NEUTRAL
for at least one minute after every five
rocking-motion cycles. This will mini-
mize overheating and reduce the risk of
clutch or transmission failure during
prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shift-
ing between DRIVE/SECOND GEAR and
REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the
wheels too fast may lead to transmission
overheating and failure. It can also dam-
age the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
201

TOWING A DISABLED
VEHICLE
This section describes procedures for towing
a disabled vehicle using a commercial towing
service. If the transmission and drivetrain are
operable, disabled vehicles may also be
towed as described under “Recreational Tow-
ing” in the “Starting And Operating” section.
Towing Condition Wheels OFF The Ground 4WD MODELS
Flat Tow NONESee instructions under “Recreational Towing” in “Starting And Oper-
ating”.
• Automatic Transmission inPARK
• Transfer Case inNEUTRAL
• Disconnect negative battery cable
• Tow inforwarddirection
Wheel Lift Or Dolly TowFrontNOT ALLOWED
RearNOT ALLOWED
FlatbedALL BEST METHOD
Proper towing or lifting equipment is required
to prevent damage to your vehicle. Use only
tow bars and other equipment designed for
this purpose, following equipment manufac-
turer’s instructions. Use of safety chains is
mandatory. Attach a tow bar or other towingdevice to main structural members of the
vehicle, not to bumpers or associated brack-
ets. State and local laws regarding vehicles
under tow must be observed.If you must use the accessories (wipers, de-
frosters, etc.) while being towed, the ignition
must be in the ON/RUN position, not the ACC
position.
IN CASE OF EMERGENCY
202

If the vehicle's battery is discharged, refer to
"Manual Park Release" in this section for
instructions on shifting the automatic trans-
mission out of PARK in order to move the
vehicle.
CAUTION!
• Do not use sling type equipment when
towing. Vehicle damage may occur.
• When securing the vehicle to a flatbed
truck, do not attach to front or rear
suspension components. Damage to
your vehicle may result from improper
towing.
• If the vehicle being towed requires steer-
ing, the ignition switch must be in the
ACC or ON/RUN mode, not in the OFF
mode.
Without The Key Fob
Special care must be taken when the vehicle
is towed with the ignition in the OFF mode.
The only approved method of towing without
the key fob is with a flatbed truck. Proper
towing equipment is necessary to prevent
damage to the vehicle.
Four–Wheel Drive Models
The manufacturer recommends towing with
all wheelsOFFthe ground. Acceptable meth-
ods are to tow the vehicle on a flatbed or with
one end of the vehicle raised and the opposite
end on a towing dolly.
If flatbed equipment is not available and the
transfer case is operable, the vehicle may be
towed (in the forward direction, withALL
wheels on the ground),IFthe transfer case is
inNEUTRAL(N) and the transmission is in
PARK. Refer to “Recreational Towing” in
“Starting And Operating” for detailed
instructions.
CAUTION!
• Front or rear wheel lifts must not be used
(if the remaining wheels are on the
ground). Internal damage to the trans-
mission or transfer case will occur if a
front or rear wheel lift is used when
towing.
• Towing this vehicle in violation of the
above requirements can cause severe
transmission and/or transfer case dam-
CAUTION!
age. Damage from improper towing is
not covered under the New Vehicle Lim-
ited Warranty.
Tow Eye Usage
Your vehicle is equipped with a tow eye that
can be used to move a disabled vehicle.
When using a tow eye be sure to follow the
“Tow Eye Usage Precautions” and the “Tow-
ing A Disabled Vehicle” instructions in this
section.
The tow eyes are mounted below the front and
rear bumpers.
Tow Eye Usage Precautions
WARNING!
Stand clear of vehicles when pulling with
tow eyes.
• Do not use a chain with a tow eye.
Chains may break, causing serious injury
or death.
203

WARNING!
• Do not use a tow strap with a tow eye.
Tow straps may break or become disen-
gaged, causing serious injury or death.
• Failure to follow proper tow eye usage
may cause components to break result-
ing in serious injury or death.
• The brake and steering power assist sys-
tems will not function while the vehicle
is being towed. You will, therefore, need
to apply more force on the brake pedal
and steering wheel. Do not use flexible
ropes when towing, and avoid jerky
movements. Do not start the engine
while towing the car. Before tightening
the ring, clean the threaded housing
thoroughly. Make sure that the ring is
fully screwed into the housing before
towing the car.
CAUTION!
• The tow eye must only be used for road-
side emergencies. Use with an appropri-
ate device in accordance with highway
code (a rigid bar) to maneuver the ve-
hicle in preparation for transport via a
tow truck.
• The tow eye must not be used to move
the vehicle off the road or where there
are obstacles.
• Do not use the tow eyes for tow truck
hookup or highway towing.
• Do not use the tow eye to free a stuck
vehicle. Refer to the “Freeing A Stuck
Vehicle” section for further information.
• Please refer to the “Towing A Disabled
Vehicle” section for detailed instruc-
tions. Damage to your vehicle may occur
if these guidelines are not followed.NOTE:
• Ensure that the tow eye is properly
mounted.
• Do not use the tow eye to pull the vehicle
onto a flatbed truck.
Tow Eye Warning Label
IN CASE OF EMERGENCY
204

ENHANCED ACCIDENT
RESPONSE SYSTEM (EARS)
This vehicle is equipped with an Enhanced
Accident Response System.
Please refer to “Occupant Restraint Sys-
tems” in “Safety” for further information on
the Enhanced Accident Response System
(EARS) function.
EVENT DATA RECORDER
(EDR)
This vehicle is equipped with an Event Data
Recorder (EDR). The main purpose of an EDR
is to record data that will assist in under-
standing how a vehicle’s systems performed
under certain crash or near crash-like situa-
tions, such as an air bag deployment or hit-
ting a road obstacle.
Please refer to “Occupant Restraint Sys-
tems” in “Safety” for further information on
the Event Data Recorder (EDR).
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