2018 JEEP WRANGLER UNLIMITED battery

9. Repeat steps seven and eight with the
transmission in DRIVE.
10. Turn the engine OFF and leave the igni-
tion in the unlocked ACC position.
11. Firmly apply the parking brake.
12. Shift the transmission into PARK (NOT
in NEUTRAL).
CAUTION!
Damage to the transmission may occur if
the transmission is shifted into PARK with
the transfer case in NEUTRAL (N) and the
engine running. With the transfer case in
NEUTRAL (N) ensure that the engine is
OFF before shifting the transmission into
PARK.13. Attach the vehicle to the tow vehicle
using a suitable tow bar.
14. Release the parking brake.
15. Disconnect the negative battery cable,
and secure it away from the negative
battery post.
Shifting Out of NEUTRAL (N)
Use the following procedure to prepare your
vehicle for normal usage.
1. Bring the vehicle to a complete stop, leav-
ing it connected to the tow vehicle.
2. Firmly apply the parking brake.
3. Reconnect the negative battery cable.
4. Start the engine.
5. Press and hold the brake pedal.
6. Shift the transmission into NEUTRAL.7. Turn the engine OFF.
8. Shift the transfer case lever to the desired
position.
NOTE:
When shifting the transfer case out of
NEUTRAL (N), the engine should remain
OFF to avoid gear clash.
9. Shift the transmission into PARK.
10. Release the brake pedal.
11. Disconnect vehicle from the tow vehicle.
12. Start the engine.
13. Press and hold the brake pedal.
14. Release the parking brake.
15. Shift the transmission into gear, release
the brake pedal, and check that the
vehicle operates normally.
173

HAZARD WARNING
FLASHERS
The Hazard Warning flasher switch is located
on the instrument panel below the climate
controls.
Push the switch to turn on the
Hazard Warning flasher. When the
switch is activated, all directionalturn signals will flash on and off to warn
oncoming traffic of an emergency. Push the
switch a second time to turn off the Hazard
Warning flashers.
This is an emergency warning system and it
should not be used when the vehicle is in
motion. Use it when your vehicle is disabled
and it is creating a safety hazard for other
motorists.When you must leave the vehicle to seek
assistance, the Hazard Warning flashers will
continue to operate even though the ignition
is placed in the OFF position.
NOTE:
With extended use the Hazard Warning flash-
ers may wear down your battery.
BULB REPLACEMENT
Replacement Bulbs
Interior Bulbs
Bulb Number
Automatic Transmission Indicator Lamp 658
Heater Control Lamps (2)194
Rocker Switch Indicator Lamp (Rear Window Defogger, and Rear Wash/
Wipe)**
Soundbar Dome Lamp912
** Bulbs only available from an authorized dealer.
IN CASE OF EMERGENCY
176

WARNING!
services are switched off and/or disen-
gaged.
• If the replaced fuse blows again, contact
an authorized dealer.
• If a general protection fuse for safety
systems (air bag system, braking sys-
tem), power unit systems (engine sys-
tem, gearbox system) or steering system
blows, contact an authorized dealer.
CAUTION!
If it is necessary to wash the engine com-
partment, take care not to directly hit the
CAUTION!
fuse box, and the windshield wiper motors
with water.
General Information
The fuses protect electrical systems against
excessive current.
When a device does not work, you must check
the fuse element inside the blade fuse for a
break/melt.
Also, please be aware that when using power
outlets for extended periods of time with the
engine off may result in vehicle battery dis-
charge.
Power Distribution Center (PDC)
The Power Distribution Center is located in
the engine compartment near the battery.
This center contains cartridge fuses, mini
fuses, and relays. The PDC top cover is la-
belled with each serviceable fuse/relay loca-
tion, function, and size.
NOTE:
Fuses for safety systems (marked with *)
must be serviced by an authorized dealer.
Cavity Cartridge Fuse Micro Fuse Description
F01 – – Spare
F02 40 Amp Green – Starter
(*)
F03
– 5 Amp TanIntelligent Battery Sensor (IBS)
(*)
F04 – 20 Amp YellowFuel Pump MTR/FPCM
(*)
181

Cavity Cartridge Fuse Micro Fuse Description
F63 – 10 Amp Red Occupant Restraint Controller (ORC)
(*)
F64 – – Spare
F65 – – Spare
F66 40 Amp Green – HVAC BLOWER MTR FRT
(*)
F67 – – Spare
F68 – – Spare
F69 – 5 Amp Tan Motor Generator Unit MGU Belt Starter Generator (BSG)
— If Equipped
(*)
F70 – 25 Amp Clear INJ/IGN COIL (GAS)/GLO PLUG MOD (DSL)
(*)
F71 – – Spare
F72 – 10 Amp Red HD ELEC ACC PKG — If Equipped
(*)
F73 20 Amp Blue – PWR TOP LT
(*)
F74 20 Amp Blue – PWR TOP RT
(*)
F75 – 10 Amp Red Power Pack Unit - Battery Pack Control Module & Auxil-
iary Power Module (PPU-BPCM & APM) Belt Starter
Generator (BSG) — If Equipped
(*)
IN CASE OF EMERGENCY
186

Jack Usage Precautions
To complete the Use and Maintenance Hand-
book to which this supplement is attached,
given below are some instructions on the
proper use of the jack.
WARNING!
When using the crank, make sure it turns
freely without the risk of scraping hands
against the ground.
Even the moving parts of the jack, the
“worm screw” and joints can cause inju-
ries: avoid contact with them. Clean it
thoroughly if dirtied with grease.
CAUTION!
The jack is a tool designed exclusively for
changing a wheel, in case of a puncture or
damage to a tire of the vehicle on which it
is fitted or on vehicles of the same model.
Any other use, e.g. to jack up other vehicle
models or different things, is strictly pro-
hibited. Never use it to carry out mainte-
nance or repairs under the vehicle or to
CAUTION!
change summer/winter wheels and vice
versa. Never go under the raised vehicle. If
any work under the vehicle is necessary,
contact an authorized dealer. Incorrect
placing of the jack can cause the vehicle to
drop: use it only in the positions indicated.
Do not use the jack for loads higher than
that specified on the label. Never start the
engine with vehicle raised. If the vehicle is
raised more than necessary, everything
can become more unstable, with the risk
of the vehicle dropping violently. Therefore
raise the vehicle only as much as neces-
sary for the wheel/spare.
Maintenance
• Make sure grime does not build up on the
“worm screw.”
• Keep the “worm screw” lubricated.
• Never modify the jack.
Conditions Of Non-Use:
• Temperatures below −40°C.
• On sandy or muddy ground.
• On uneven ground.• On steep roads.
• In extreme weather conditions: thunder-
storms, typhoons, hurricanes, blizzards,
storms, etc.
NOTE:
•The jack requires no adjustment.
• The jack cannot be repaired, and in the
event of a fault, it must be replaced by
another genuine one.
• No tool other than its cranking device may
be fitted on the jack.
JUMP STARTING
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.
WARNING!
Do not attempt jump starting if the battery
is frozen. It could rupture or explode and
cause personal injury.
IN CASE OF EMERGENCY
196

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.
NOTE:
When using a portable battery booster pack,
follow the manufacturer's operating instruc-
tions and precautions.
Preparations For Jump Start
The battery in your vehicle is located in the
left rear of the engine compartment, behind
the Power Distribution Center.NOTE:
The positive battery post is covered with a
protective cap. Lift up on the cap to gain
access to the post.
WARNING!
• Take care to avoid the radiator cooling
fan whenever the hood is raised. It can
start anytime the ignition switch is ON.
You can be injured by moving fan blades.
WARNING!
• Remove any metal jewelry such as rings,
watch bands and bracelets that could
make an inadvertent electrical contact.
You could be seriously injured.
• Batteries contain sulfuric acid that can
burn your skin or eyes and generate
hydrogen gas which is flammable and
explosive. Keep open flames or sparks
away from the battery.
NOTE:
Never use a fast battery charger to start the
engine, as this could damage the electronic
systems of your vehicle, particularly the igni-
tion and engine fuel supply control units.
1. Apply the parking brake, shift the auto-
matic transmission into PARK and turn
the ignition OFF.
2. Turn off the heater, radio, and all unnec-
essary electrical accessories.
3. If using another vehicle to jump start the
battery, park the vehicle within the jumper
cable’s reach, apply the parking brake and
make sure the ignition is OFF.
Positive Battery Post
197

WARNING!
Do not allow vehicles to touch each other
as this could establish a ground connec-
tion and personal injury could result.
Jump Starting Procedure
WARNING!
Failure to follow this jump starting proce-
dure could result in personal injury or
property damage due to battery explosion.
CAUTION!
Failure to follow these procedures could
result in damage to the charging system of
the booster vehicle or the discharged ve-
hicle.
NOTE:
Make sure at all times that unused ends of
jumper cables are not contacting each other
or either vehicle while making connections.Connecting The Jumper Cables
1. Connect the positive(+)end of the jumper
cable to the remote positive(+)post of the
discharged vehicle.
2. Connect the opposite end of the positive
(+)jumper cable to the positive(+)post of
the booster battery.
3. Connect the negative end(-)of the jumper
cable to the negative(-)post of the
booster battery.
4. Connect the opposite end of the negative
(-)jumper cable to a good engine ground
(exposed metal part of the discharged
vehicle’s engine) away from the battery
and the fuel injection system.
WARNING!
Do not connect the jumper cable to the
negative (-) post of the discharged battery.
The resulting electrical spark could cause
the battery to explode and could result in
personal injury. Only use the specific
ground point, do not use any other exposed
metal parts.5. Start the engine in the vehicle that has
the booster battery, let the engine idle a
few minutes, and then start the engine in
the vehicle with the discharged battery.
CAUTION!
Do not run the booster vehicle engine
above 2,000 rpm since it provides no
charging benefit, wastes fuel, and can
damage booster vehicle engine.
6. Once the engine is started, remove the
jumper cables in the reverse sequence:
Disconnecting The Jumper Cables
1. Disconnect the negative(-)end of the
jumper cable from the engine ground of
the vehicle with the discharged battery.
2. Disconnect the opposite end of the nega-
tive(-)jumper cable from the negative(-)
post of the booster battery.
3. Disconnect the positive(+)end of the
jumper cable from the positive(+)post of
the booster battery.
IN CASE OF EMERGENCY
198

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