2018 JEEP WRANGLER UNLIMITED Owner handbook (in English)

WARNING!
• Do not apply any object/cap to the end of
the filler which is not provided for the
car. The use of non-compliant objects/
plugs could cause a pressure increase
inside the tank, resulting in dangerous
situations.
• A fire may result if fuel is pumped into a
portable container that is inside of a
vehicle. You could be burned. Always
place fuel containers on the ground
while filling.
CAUTION!
• Damage to the fuel system or emission
control system could result from using
an improper fuel filler cap. A poorly
fitting cap could let impurities into the
fuel system. Also, a poorly fitting after-
market cap can cause the “Malfunction
Indicator Light (MIL)” to illuminate, due
to fuel vapors escaping from the system.
• To avoid fuel spillage and overfilling, do
not “top off” the fuel tank after filling.NOTE:
• When the fuel nozzle “clicks” or shuts off,
the fuel tank is full.
• Tighten the fuel filler cap about 1/4 turn
until you hear one click. This is an indica-
tion that the cap is properly tightened.
• If the fuel filler cap is not tightened prop-
erly, the MIL will come on. Be sure the cap
is tightened every time the vehicle is
refueled.
Loose Fuel Filler Cap Message
After fuel has been added, the vehicle diag-
nostic system can determine if the fuel filler
cap is possibly loose, improperly installed, or
damaged. If the system detects a malfunc-
tion, the “gASCAP” message will display in
the odometer display. Tighten the gas cap
until a "clicking" sound is heard. This is an
indication that the gas cap is properly tight-
ened. Push the odometer reset button to turn
the message off. If the problem persists, the
message will appear the next time the vehicle
is started. This might indicate a damagedcap. If the problem is detected twice in a row,
the system will turn on the MIL. Resolving the
problem will turn the MIL off.
REFUELING THE VEHICLE —
DIESEL
The fuel filler cap is located on the driver's
side of the vehicle. If the fuel filler cap is lost
or damaged, be sure the replacement cap is
the correct one for this vehicle.
Fuel Filler Door
167

WARNING!
• Never have any smoking materials lit in
or near the vehicle when the fuel door is
open or the tank is being filled.
• Never add fuel when the engine is run-
ning. This is in violation of most coun-
tries regulations and may cause the
“Malfunction Indicator Light” to turn
on.
WARNING!
• Do not apply any object/cap to the end of
the filler which is not provided for the
car. The use of non-compliant objects/
plugs could cause a pressure increase
inside the tank, resulting in dangerous
situations.
• A fire may result if fuel is pumped into a
portable container that is inside of a
vehicle. You could be burned. Always
place fuel containers on the ground
while filling.
CAUTION!
• Damage to the fuel system or emission
control system could result from using
an improper fuel filler cap. A poorly
fitting cap could let impurities into the
fuel system. Also, a poorly fitting after-
market cap can cause the “Malfunction
Indicator Light (MIL)” to illuminate, due
to fuel vapors escaping from the system.
• To avoid fuel spillage and overfilling, do
not “top off” the fuel tank after filling.NOTE:
• When the fuel nozzle “clicks” or shuts off,
the fuel tank is full.
• Tighten the fuel filler cap about 1/4 turn
until you hear one click. This is an indica-
tion that the cap is properly tightened.
• If the fuel filler cap is not tightened prop-
erly, the MIL will come on. Be sure the cap
is tightened every time the vehicle is
refueled.
Adblue (UREA) — If Equipped
The vehicle is equipped with an UREA injec-
tion system and Selective Catalytic Reduc-
tion to meet emission standards. These two
systems ensure compliance with the diesel
emissions requirements; at the same, they
ensure fuel-efficiency, handling, torque and
power. For messages and system warnings,
refer to the "Warning Lights And Messages" in
the "Getting To Know Your Instrument Panel"
section. AdBlue (UREA) is a very stable prod-
uct with a long shelf life. Stored at tempera-
tures LOWER than 90 °F (32 °C), it has a
shelf life of at least one year. For more infor-
mation on the AdBlue liquid type, see the
Fuel and AdBlue (UREA) Fill Location
1 — Diesel Fuel Filler
2 — AdBlue (UREA) Filler
STARTING AND OPERATING
168

“Fluids and lubricants” in the “Technical
specifications” section. The vehicle is
equipped with an automatic AdBlue heating
system when the engine starts allowing the
system to work correctly at temperatures
lower than 12 °F (-11 °C).
NOTE:
AdBlue freezes at temperatures lower than
12 °F (-11 °C).
AdBlue (UREA) Storage
AdBlue (UREA) is considered a very stable
product with a long shelf life. If AdBlue
(UREA) is kept in temperatures between
10° and 90°F (-12° and 32°C), it will last a
minimum of one year.
AdBlue (UREA) is subject to freezing at the
lowest temperatures. For example, AdBlue
(UREA) may freeze at temperatures at or
below 12° F (-11° C). The system has been
designed to operate in this environment.NOTE:
When working with AdBlue (UREA), it is
important to know that:
• Any containers or parts that come into con-
tact with AdBlue (UREA) must be AdBlue
(UREA) compatible (plastic or stainless
steel). Copper, brass, aluminum, iron or
non-stainless steel should be avoided as
they are subject to corrosion by AdBlue
(UREA).
• If AdBlue (UREA) is spilled, it should be
wiped up completely.
Adding AdBlue (UREA)
Preliminary Conditions
AdBlue (UREA) freezes at temperatures
lower than 12° F (-11° C). If the car stands for
a long time at this temperature refilling could
be difficult. For this reason, it is advised to
park the vehicle in a garage and/or heated
environment and wait for the urea to return to
liquid state before topping up.
Proceed as follows:
• Park the car on flat ground and stop the
engine by cycling the ignition to the OFF
position.• Open the fuel door, undo and remove the
cap (blue) from the AdBlue (UREA) filler.
Refilling With Nozzles
You can fill up at any AdBlue (UREA) dis-
tributor.
Proceed as follows:
• Insert the AdBlue (UREA) nozzle in the
filler, start refilling and stop refilling at the
first shut-off (the shut-off indicates that the
AdBlue (UREA) tank is full). Do not pro-
ceed with the refilling, to prevent spillage
of AdBlue (UREA).
• Extract the nozzle.
Refilling With Containers
Proceed as follows:
• Check the expiration date.
• Read the advice for use on the label before
pouring the content of the bottle into the
AdBlue (UREA) tank.
• If systems which cannot be screwed in (e.g.
tanks) are used for refilling, after the indi-
cation appears on the instrument panel
display refer to “Warning lights And Mes-
sages" in the “Getting To Know Your Instru-
169

ment Panel” for further information, fill the
AdBlue (UREA) tank with no more than
2 Gallons (8 liters).
• If containers which can be screwed to the
filler are used, the reservoir is full when the
AdBlue (UREA) level in the container stops
pouring out. Do not proceed further.
Operations After Refilling
Proceed as follows:
• Fit the cap back on the AdBlue (UREA)
filler by turning it clockwise and screwing it
completely.
• Cycle the ignition to RUN (it is not neces-
sary to start the engine).
• Wait for the indication on the instrument
panel to switch off before moving the car.
The indication may stay on for a few sec-
onds to approximately half a minute. If the
engine is started and the car is moved, the
indication will remain on for longer. This
will not compromise engine operation.• If the AdBlue (UREA) was topped up when
the tank was empty, wait for 2 minutes
before starting the engine.
NOTE:
• If AdBlue (UREA) is spilled out of the filler
neck, clean up well the area and proceed to
filling up again. If the liquid crystallizes,
eliminate it with a sponge and warm water.
• DO NOT EXCEED THE MAXIMUM LEVEL:
this could cause damage to the reservoir.
AdBlue (UREA) freezes at under 12° F
(-11° C). Although the system is designed
to operate below the freezing point of the
UREA, it is advisable not to fill the tank
beyond the maximum level because if the
UREA freezes the system can be damaged.
Follow the instructions in this section.
• If the AdBlue (UREA) is spilled on painted
surfaces or aluminium, immediately clean
the area with water and use absorbent ma-
terial to collect the fluid that has been
spilled on the ground.• Do not try to start the engine if AdBlue
(UREA) was accidentally added to the die-
sel fuel tank, this can result in serious
engine damage, contact an authorized
dealer.
• Do not add additives or other fluids to
AdBlue (UREA), doing so could damage the
system.
• The use of non-conforming or degraded
AdBlue (UREA) may lead to indications
appearing on the instrument panel display
refer to “Warning Lights And Messages" in
the “Getting To Know Your Instrument
Panel” for further information.
• Never pour AdBlue (UREA) into another
container: it could be contaminated.
• If the AdBlue (UREA) runs out, see refer to
“Warning Lights And Messages" in the
“Getting To Know Your Instrument Panel”
for further information to continue using
the car normally.
STARTING AND OPERATING
170

TRAILER TOWING
Trailer Towing Weights (Maximum Trailer Weight Ratings)
Model Frontal Area Max. GTW (Gross Trailer Wt.) Max. Trailer Tongue Wt. (See Note)
Two–Door 20 ft2 (1.86 m2) 3,300 lb (1,497 kg) 165 lb (75 kg)
Four–Door 30 ft2 (2.79 m2) 5,500 lbs (2,495 kg) 275 lbs (125 kg)
When towing a trailer the technically permissible laden weight may be exceeded by not more than 10% or 220 lbs (100 kg), whichever is lower
provided the operating speed is restricted to 62mph (100km/h) or less. Trailer sway control device is recommended when towing more than
1000 lbs (454 kg).
RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
Towing Condition Wheels OFF the Ground Four-Wheel Drive Models
Flat Tow NONESee Instructions
•
Automatic transmission in PARK.
• Transfer case in NEUTRAL (N).
• Disconnect negative battery cable.
• Tow in forward direction.
Dolly TowFront NOT ALLOWED
Rear NOT ALLOWED
On Trailer ALL OK
NOTE:
When towing your vehicle, always follow applicable laws. Contact local authorities for additional details.
171

Recreational Towing — Four-Wheel Drive
Models
NOTE:
The transfer case must be shifted into NEU-
TRAL (N), transmission must be in PARK, for
recreational towing.
CAUTION!
• DO NOT dolly tow any 4WD vehicle.
Towing with only one set of wheels on
the ground (front or rear) will cause
severe transmission and/or transfer case
damage. Tow with all four wheels either
ON the ground, or OFF the ground (using
a vehicle trailer).
• Tow only in the forward direction. Towing
this vehicle backwards can cause severe
damage to the transfer case.
• Automatic transmissions must be
placed in PARK for recreational towing.
• Before recreational towing, perform the
procedure outlined under “Shifting Into
NEUTRAL (N)” to be certain that the
transfer case is fully in NEUTRAL (N).
Otherwise, internal damage will result.
CAUTION!
• Towing this vehicle in violation of the
above requirements can cause severe
transmission and/or transfer case dam-
age. Damage from improper towing is
not covered under the New Vehicle Lim-
ited Warranty.
• Do not use a bumper-mounted clamp-on
tow bar on your vehicle. The bumper
face bar will be damaged.
Shifting Into NEUTRAL (N)
Use the following procedure to prepare your
vehicle for recreational towing.
WARNING!
You or others could be injured or killed if
you leave the vehicle unattended with the
transfer case in the NEUTRAL (N) position
without first fully engaging the parking
brake. The transfer case NEUTRAL (N)
position disengages both the front and rear
driveshafts from the powertrain, and will
allow the vehicle to roll, even if the auto-
matic transmission is in PARK. The park-
WARNING!
ing brake should always be applied when
the driver is not in the vehicle.
CAUTION!
It is necessary to follow these steps to be
certain that the transfer case is fully in
NEUTRAL (N) before recreational towing
to prevent damage to internal parts.
1. Bring the vehicle to a complete stop on
level ground.
2. Press and hold the brake pedal.
3. Shift the transmission into NEUTRAL.
4. Turn the engine OFF.
5. Shift the transfer case lever into NEU-
TRAL (N).
6. Start the engine.
7. Shift the transmission into REVERSE.
8. Release the brake pedal for five seconds
and ensure that there is no vehicle
movement.
STARTING AND OPERATING
172

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.
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