JEEP WRANGLER UNLIMITED 2013 Owners Manual

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.
6 WHAT TO DO IN EMERGENCIES 539

JACKING AND TIRE CHANGING
WARNING!• Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
under a raised vehicle, take it to a service center
where it can be raised on a lift. (Continued) WARNING! (Continued)• Never start or run the engine while the vehicle is
on a jack.
• The jack is designed to be used as a tool for
changing tires only. The jack should not be used to
lift the vehicle for service purposes. The vehicle
should be jacked on a firm level surface only.
Avoid ice or slippery areas.540 WHAT TO DO IN EMERGENCIES

Jack Location
The jack and lug wrench are located in the rear storage
compartment. NOTE: Turn the black plastic wing nut counter clock-
wise to loosen the jack from the storage bin.
Jack Storage Jack Wing Nut
6 WHAT TO DO IN EMERGENCIES 541

Spare Tire Stowage
To remove the spare tire from the carrier, remove the tire
cover, if equipped, and remove the lug nuts with the lug
wrench turning them counterclockwise.
NOTE: If you have added aftermarket accessories to the
spare tire mounted carrier, it cannot exceed a gross weight
of 50 lbs (23 kg) including the weight of the spare tire.
Preparations For Jacking
1. Park on a firm, level surface. Avoid ice or slippery areas.
WARNING!Do not attempt to change a tire on the side of the
vehicle close to moving traffic, pull far enough off
the road to avoid being hit when operating the jack
or changing the wheel. 2. Turn on the Hazard Warning flasher.
3. Set the parking brake.
4. Shift the automatic transmission into PARK, or a
manual transmission into REVERSE.
5. Turn the ignition to LOCK.
Block both the front and rear of the
wheel diagonally opposite of the jack-
ing position. For example, if changing
the right front tire, block the left rear
wheel.
NOTE: Passengers should not remain in the vehicle
when the vehicle is being jacked.542 WHAT TO DO IN EMERGENCIES

Jacking Instructions
WARNING!Carefully follow these tire changing warnings to
help prevent personal injury or damage to your
vehicle:
• Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the
vehicle.
• Turn on the Hazard Warning flasher.
• Block the wheel diagonally opposite the wheel to
be raised.
• Set the parking brake firmly and set an automatic
transmission in PARK; a manual transmission in
REVERSE.
• Never start or run the engine with the vehicle on a
jack. (Continued) WARNING! (Continued)• Do not let anyone sit in the vehicle when it is on a
jack.
• Do not get under the vehicle when it is on a jack. If
you need to get under a raised vehicle, take it to a
service center where it can be raised on a lift.
• Only use the jack in the positions indicated and for
lifting this vehicle during a tire change.
• If working on or near a roadway, be extremely
careful of motor traffic.
• To assure that spare tires, flat or inflated, are
securely stowed, spares must be stowed with the
valve stem facing the ground.
6 WHAT TO DO IN EMERGENCIES 543

CAUTION!Do not attempt to raise the vehicle by jacking on
locations other than those indicated in the Jacking
Instructions for this vehicle.
1. Remove the spare tire, jack and tools from the stored
location.
2. Loosen (but do not remove) the wheel lug nuts by
turning them to the left one turn while the wheel is
still on the ground. 3. Assemble the jack and jacking tools. Connect the jack
handle driver to the extension, then to the lug wrench.
4. Operate the jack from the front or the rear of the
vehicle. Place the jack under the axle tube, as shown.
Do not raise the vehicle until you are sure the jack is
fully engaged.Jack Warning Label
Rear Jacking Location544 WHAT TO DO IN EMERGENCIES

5. Raise the vehicle by turning the jack screw to the right.
Raise the vehicle till the tire is raised from the surface
of the road. Minimum tire lift provides maximum
stability. WARNING!Raising the vehicle higher than necessary can make
the vehicle less stable and cause a collision. It could
slip off the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
6. Remove the lug nuts and wheel.
Front Jacking Location
6 WHAT TO DO IN EMERGENCIES 545

7. Position the spare wheel/tire on the vehicle and install
the lug nuts with the cone-shaped end toward the
wheel. Lightly tighten the lug nuts clockwise.
WARNING!To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts fully until the vehicle has
been lowered. Failure to follow this warning may
result in personal injury.
8. Lower the vehicle by turning the jack screw to the left,
and remove the jack.
9. Finish tightening the lug nuts. Push down on the
wrench while tightening for increased leverage. Alter-
nate nuts until each nut has been tightened twice. The
correct wheel nut tightness is 95 ft lbs (130 N·m). If in
doubt about the correct tightness, have them checked
with a torque wrench by your authorized dealer or at
a service station.Lug Nut Installation546 WHAT TO DO IN EMERGENCIES

10. Remove the jack assembly and wheel blocks.
11 . Secure the tire, jack, and tools in their proper locations.
12. Remove blocks from wheels.
WARNING!A loose tire or jack thrown forward in a collision or
hard stop, could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
Road Tire Installation
1. Mount the road tire on the axle.
2. Install the remaining lug nuts with the cone shaped
end of the nut toward the wheel. Lightly tighten the
lug nuts. WARNING!To avoid the risk of forcing the vehicle off the jack,
do not tighten the lug nuts fully until the vehicle has
been lowered. Failure to follow this warning may
result in personal injury.
3. Lower the vehicle to the ground by turning the jack
handle counterclockwise.
4. Finish tightening the lug nuts. Push down on the
wrench while at the end of the handle for increased
leverage. Tighten the lug nuts in a star pattern until each
nut has been tightened twice. The correct tightness of
each lug nut is 95 ft/lbs (130 N·m). If in doubt about the
correct tightness, have them checked with a torque
wrench by your authorized dealer or service station.
5. After 25 miles (40 km) check the lug nut torque with a
torque wrench to ensure that all lug nuts are properly
seated against the wheel.
6 WHAT TO DO IN EMERGENCIES 547

JUMP-STARTING PROCEDURES
If your vehicle has a discharged battery it can be jump-
started using a set of jumper cables and a battery in
another vehicle or by using a portable battery booster
pack. Jump-starting can be dangerous if done improperly
so please follow the procedures in this section carefully.
NOTE: When using a portable battery booster pack
follow the manufacturer ’s operating instructions and
precautions. CAUTION!Do not use a portable battery booster pack or any
other booster source with a system voltage greater
than 12 Volts or damage to the battery, starter motor,
alternator or electrical system may occur.
WARNING!Do not attempt jump-starting if the battery is frozen.
It could rupture or explode and cause personal injury.548 WHAT TO DO IN EMERGENCIES