service JEEP WRANGLER 2020 Owner handbook (in English)

Congratulations on selecting your new FCA
US LLC vehicle. Be assured that it represents
precision workmanship, distinctive styling,
and high quality.
ALWAYS drive safely and pay attention to the
road. ALWAYS drive safely with your hands on
the steering wheel. You have full responsibil-
ity and assume all risks related to the use of
the features and applications in this vehicle.
Only use the features and applications when
it is safe to do so. Failure to do so may result
in an accident involving serious injury or
death.
This guide illustrates and describes the op-
eration of features and equipment that are
either standard or optional on this vehicle.
This guide may also include a description of
features and equipment that are no longer
available or were not ordered on this vehicle.
Please disregard any features and equipment
described in this guide that are not available
on this vehicle. FCA US LLC reserves the
right to make changes in design and specifi-
cations and/or make additions to or improve-ments to its products without imposing any
obligation upon itself to install them on prod-
ucts previously manufactured.
This User Guide has been prepared to help
you quickly become acquainted with the im-
portant features of your vehicle. It contains
most things you will need to operate and
maintain the vehicle, including emergency
information.
When it comes to service, remember that your
authorized dealer knows your Jeep
®vehicle
best, has factory-trained technicians and
genuine MOPAR
®parts, and cares about your
satisfaction.
HOW TO FIND YOUR
OWNER’S MANUAL ONLINE
This publication has been prepared as a ref-
erence item to help you quickly become ac-
quainted with the most important features
and processes of your vehicle. It contains
most things you will need to operate and
maintain the vehicle, including emergency
information and procedures.This User Guide is not a replacement for the full
Owner’s Manual, and does not fully cover every
operation and procedure possible with your ve-
hicle.
For more detailed descriptions of the topics
discussed in this User Guide, as well as
information covering features and processes
not covered in this User Guide, the full ve-
hicle Owner’s Manual can be accessed for
free online in a printer-friendly PDF format.
To get the full Owner’s Manual or applicable
supplement for your vehicle, follow the appro-
priate web address below:
www.mopar.eu/owner
FCA US LLC is committed to protecting our
environment and natural resources. By con-
verting from paper to electronic delivery for
the majority of the user information for your
vehicle, together we greatly reduce the de-
mand for tree-based products and lessen the
stress on our environment.
WELCOME FROM FCA US LLC
3

To Exit Remote Start Mode Without
Driving The Vehicle
Push and release the remote start button one
time or allow the engine to run for the entire
15-minute cycle.
NOTE:
To avoid unintentional shut downs, the sys-
tem will disable the one time push of the
remote start button for two seconds after
receiving a valid remote start request.
To Exit Remote Start Mode And Drive The
Vehicle
Before the end of the 15-minute cycle, push
and release the unlock button on the key fob
to unlock the doors and disarm the vehicle
security alarm (if equipped). Then, insert the
key into the ignition and place the ignition in
the ON/RUN position.
NOTE:
The ignition must be placed in the ON/RUN
position in order to drive the vehicle.
SENTRY KEY
The Sentry Key Immobilizer System prevents
unauthorized vehicle operation by disabling
the engine. The system does not need to be
armed or activated. Operation is automatic,
regardless of whether the vehicle is locked or
unlocked.
The system uses key fobs that have an em-
bedded electronic chip (transponder) to pre-
vent unauthorized vehicle operation. There-
fore, only key fobs that are programmed to
the vehicle can be used to start and operate
the vehicle. The system will shut the engine
off in two seconds if someone uses an invalid
key to try to start the engine.
NOTE:
A key fob that has not been programmed is
also considered an invalid key, even if it is cut
to fit the ignition or lock cylinder for that
vehicle.
During normal operation, after placing the
ignition in the on position, the vehicle secu-
rity light will turn on for three seconds for abulb check. If the light remains on after the
bulb check, it indicates that there is a prob-
lem with the electronics. In addition, if the
vehicle security light begins to flash after the
bulb check, it indicates that someone used
an invalid key to try to start the engine. Either
of these conditions will result in the engine
being shut off after two seconds.
If the vehicle security light turns on during
normal vehicle operation (vehicle running for
longer than ten seconds), it indicates that
there is a fault in the electronics. Should this
occur, have the vehicle serviced as soon as
possible by an authorized dealer.
CAUTION!
The Sentry Key Immobilizer system is not
compatible with some aftermarket remote
starting systems. Use of these systems
may result in vehicle starting problems
and loss of security protection.
All of the key fobs provided with your new
vehicle have been programmed to the vehicle
electronics.GETTING TO KNOW YOUR VEHICLE
16

Replacement Key Fobs
NOTE:
Only key fobs that are programmed to the
vehicle electronics can be used to start and
operate the vehicle. Once a key fob is pro-
grammed to a vehicle, it cannot be pro-
grammed to any other vehicle.
CAUTION!
Always remove the Sentry Keys from the
vehicle and lock all doors when leaving the
vehicle unattended.
Duplication of key fobs may be performed at
an authorized dealer or by following the cus-
tomer key programming procedure. This pro-
cedure consists of programming a blank key
fob to the vehicle electronics. A blank key fob
is one that has never been programmed.
NOTE:
When having the Sentry Key Immobilizer Sys-
tem serviced, bring all vehicle key fobs with
you to an authorized dealer.
Customer Key Programming
If you have two valid key fobs, you can pro-
gram new key fobs to the Sentry Key Immo-
bilizer system by performing the following
procedure:
1. Cut the additional key(s) to match the
ignition and lock cylinder key code.
2. Insert the first valid key into the ignition.
Place the ignition in the ON/RUN position
for at least three seconds, but no longer
than 15 seconds. Then, place the ignition
in the LOCK position and remove the first
key.
3. Insert the second valid key into the igni-
tion. Place the ignition in the ON/RUN
position within 15 seconds. After 10 sec-
onds, a chime will sound. In addition, the
Vehicle Security Light will begin to flash.
Place the ignition in the LOCK position
and remove the second key.
4. Insert a blank key into the ignition. Place
the ignition in the ON/RUN position
within 60 seconds. After 10 seconds, asingle chime will sound. In addition, the
Vehicle Security Light will stop flashing.
To indicate that programming is com-
plete, the Vehicle Security Light will turn
on again for three seconds and then turn
off.
The new key is programmed. The key fob
will also be programmed during this pro-
cedure.
Repeat this procedure to program up to eight
keys. If you do not have a programmed key
fob, contact your authorized dealer for de-
tails.
NOTE:
If a programmed key fob is lost, see your
authorized dealer to have all remaining key
fobs erased from the system's memory. This
will prevent the lost key from starting your
vehicle. The remaining key fobs must then be
reprogrammed. All vehicle key fobs must be
taken to an authorized dealer at the time of
service to be reprogrammed.
17

Automatic Temperature Control (ATC) —
If Equipped
Automatic Operation
1. Push the AUTO button on the faceplate on
the Automatic Temperature Control (ATC)
Panel.
2. Next, adjust the temperature you would
like the system to maintain by adjusting
the driver and passenger temperature
control buttons. Once the desired tem-
perature is displayed, the system will
achieve and automatically maintain that
comfort level.
3. When the system is set up for your comfort
level, it is not necessary to change the
settings. You will experience the greatest
efficiency by simply allowing the system
to function automatically.
NOTE:
• It is not necessary to move the temperature
settings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and de-
froster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentrationof coolant is used. Use of the Air Recircula-
tion mode during Winter months is not rec-
ommended, because it may cause window
fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for
about five minutes, in fresh air with the
blower setting on high. This will ensure ad-
equate system lubrication to minimize the
possibility of compressor damage when the
system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
37

CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
• Use care when washing the inside of
the rear window. Do not use abrasive
window cleaners on the interior surface
of the window. Use a soft cloth and a
mild washing solution, wiping parallel
to the heating elements. Labels can be
peeled off after soaking with warm
water.
• Do not use scrapers, sharp instru-
ments, or abrasive window cleaners on
the interior surface of the window.
• Keep all objects a safe distance from
the window.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc-
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust
and pollen from the air. Contact an autho-
rized dealer to service your cabin air filter,
and to have it replaced when needed.
POWER WINDOWS — IF
EQUIPPED
The power window switches are located on
the instrument panel below the radio. Push
the switch downward to open the window and
upward to close the window.
The top left switch controls the left front
window and the top right switch controls the
right front window.
WARNING!
Never leave children unattended in a ve-
hicle, and do not let children play with
power windows. Do not leave the key fob in
or near the vehicle, or in a location acces-
sible to children. Occupants, particularly
WARNING!
unattended children, can become en-
trapped by the windows while operating
the power window switches. Such entrap-
ment may result in serious injury or death.
Power Window Switches
GETTING TO KNOW YOUR VEHICLE
38

The system allows the driver to select infor-
mation by pushing the following buttons
mounted on the steering wheel:• Push theMENUbutton to scroll through the
main menus (Speedometer, Fuel
Economy, Miles To Empty, Tire Pressure,
Warnings, Timer, Vehicle Info, Units, Sys-
tem Warning, Personal Settings) or to exit
submenus.
• Push therightarrow button for access to
main menus, submenus or to select a per-
sonal setting in the setup menu.
• Push thecompassbutton to display one of
eight compass readings and the outside
temperature or to exit sub menus.
• Push thedownarrow button to scroll down-
ward through the submenus.
Instrument Cluster Display Messages
When the appropriate conditions exist, the
instrument cluster will display the following
messages:
• Low Tire Pressure
• Low Fuel
• Service TPM System (refer to "Tire Pressure
Monitoring System" in "Safety" for further
information)
• Damaged Key• Key In Ignition
• Turn Signal On (with a continuous warning
chime)
• Left Front Turn Signal Lamp Out (with a
single chime)
• Left Rear Turn Signal Lamp Out (with a
single chime)
• Right Front Turn Signal Lamp Out (with a
single chime)
• Right Rear Turn Signal Lamp Out (with a
single chime)
• Key Fob Battery Low (with a single chime)
• Personal Settings Not Avail. – Vehicle Not
in Park — automatic transmission
• Personal Settings Not Avail. – Vehicle in
Motion — manual transmission
• Door Open (with vehicle graphic showing
which door is open. A single chime sounds
if the vehicle is in motion)
• Gate Open (with vehicle graphic showing
the Liftgate/back door open and a single
chime sounds if the vehicle is in motion)Instrument Cluster Display Control Buttons
1 — MENU But-
ton3 — Down Arrow
Button
2 — Right Arrow
Button4 — Compass
Button
57

— Brake Warning Light
This light monitors various brake functions,
including brake fluid level and parking brake
application. If the brake light turns on it may
indicate that the parking brake is applied,
that the brake fluid level is low, or that there
is a problem with the anti-lock brake system.
If the light remains on when the parking
brake has been disengaged, and the fluid
level is at the full mark on the master cylinder
reservoir, it indicates a possible brake hy-
draulic system malfunction or that a problem
with the Brake Booster has been detected by
the Anti-Lock Brake System (ABS) / Elec-
tronic Stability Control (ESC) system. In this
case, the light will remain on until the condi-
tion has been corrected. If the problem is
related to the brake booster, the ABS pump
will run when applying the brake, and a brake
pedal pulsation may be felt during each stop.
The dual brake system provides a reserve
braking capacity in the event of a failure to a
portion of the hydraulic system. A leak in
either half of the dual brake system is indi-cated by the Brake Warning Light, which will
turn on when the brake fluid level in the
master cylinder has dropped below a speci-
fied level.
The light will remain on until the cause is
corrected.
NOTE:
The light may flash momentarily during sharp
cornering maneuvers, which change fluid
level conditions. The vehicle should have
service performed, and the brake fluid level
checked.
If brake failure is indicated, immediate repair
is necessary.
WARNING!
Driving a vehicle with the red brake light
on is dangerous. Part of the brake system
may have failed. It will take longer to stop
the vehicle. You could have a collision.
Have the vehicle checked immediately.Vehicles equipped with the Anti-Lock Brake
System (ABS) are also equipped with Elec-
tronic Brake Force Distribution (EBD). In the
event of an EBD failure, the Brake Warning
Light will turn on along with the ABS Light.
Immediate repair to the ABS system is re-
quired.
Operation of the Brake Warning Light can be
checked by turning the ignition switch from
the OFF position to the ON/RUN position.
The light should illuminate for approximately
four seconds. The light should then turn off
unless the parking brake is applied or a brake
fault is detected. If the light does not illumi-
nate, have the light inspected by an autho-
rized dealer.
The light also will turn on when the parking
brake is applied with the ignition switch in
the ON/RUN position.
NOTE:
This light shows only that the parking brake is
applied. It does not show the degree of brake
application.
59

— Battery Charge Warning Light
This light illuminates when the battery is not
charging properly. If it stays on while the
engine is running, there may be a malfunc-
tion with the charging system. Contact your
authorized dealer as soon as possible.
This indicates a possible problem with the
electrical system or a related component.
— Coolant Temperature Warning Light
This light warns of an overheated engine
condition. If the light turns on while driving,
safely pull over and stop the vehicle. If the
A/C system is on, turn it off. Also, shift the
transmission into NEUTRAL and idle the ve-
hicle. If the temperature reading does not
return to normal, turn the engine off imme-
diately and call for service.
NOTE:
As the coolant temperature gauge ap-
proaches "H," this indicator will illuminate
and a single chime will sound.
— Electronic Throttle Control (ETC)
Warning Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected while the vehicle is run-
ning, the light will either stay on or flash
depending on the nature of the problem.
Cycle the ignition when the vehicle is safely
and completely stopped and the transmission
is placed in the PARK position. The light
should turn off. If the light remains on with
the vehicle running, your vehicle will usually
be drivable; however, see an authorized
dealer for service as soon as possible.
NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.
If the light continues to flash when the ve-
hicle is running, immediate service is re-
quired and you may experience reduced per-
formance, an elevated/rough idle, or engine
stall and your vehicle may require towing.
The light will come on when the ignition is
placed in the ON/RUN or ACC/ON/RUN posi-tion and remain on briefly as a bulb check. If
the light does not come on during starting,
have the system checked by an authorized
dealer.
— Oil Pressure Warning Light
This light indicates low engine oil pressure. If
the light turns on while driving, stop the
vehicle and shut off the engine as soon as
possible. A chime will sound when this light
turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how
much oil is in the engine. The engine oil level
must be checked under the hood.
— Seat Belt Reminder Warning Light
This light indicates when the driver or pas-
senger seat belt is unbuckled. When the
ignition is first placed in the ON/RUN or
ACC/ON/RUN position and if the driver’s seat
belt is unbuckled, a chime will sound and the
light will turn on. When driving, if the driver
or front passenger seat belt remains unbuck-
led, the Seat Belt Reminder Light will flash or
GETTING TO KNOW YOUR INSTRUMENT PANEL
60

remain on continuously and a chime will
sound. Refer to “Occupant Restraints Sys-
tems” in “Safety” for further information.
— Vehicle Security Warning Light — If
Equipped
This light will flash at a fast rate for approxi-
mately 15 seconds when the vehicle security
alarm is arming, and then will flash slowly
until the vehicle is disarmed.
Yellow Warning Lights
— Anti-Lock Brake (ABS) Warning
Light
This light monitors the Anti-Lock Brake Sys-
tem (ABS). The light will turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position and may stay on for as long as
four seconds.
If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the
brake system is not functioning and service is
required as soon as possible. However, the
conventional brake system will continue to
operate normally, assuming the Brake Warn-
ing Light is not also on.If the ABS light does not turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, have the brake system in-
spected by an authorized dealer.
— Electronic Stability Control (ESC)
Active Warning Light — If Equipped
This light will indicate when the Electronic
Stability Control system is Active. The “ESC
Indicator Light” in the instrument cluster will
come on when the ignition is placed in the
ON/RUN or ACC/ON/RUN position, and when
ESC is activated. It should go out with the
engine running. If the “ESC Indicator Light”
comes on continuously with the engine run-
ning, a malfunction has been detected in the
ESC system. If this light remains on after
several ignition cycles, and the vehicle has
been driven several miles (kilometers) at
speeds greater than 30 mph (48 km/h), see
your authorized dealer as soon as possible to
have the problem diagnosed and corrected.
• The “ESC Off Indicator Light” and the
“ESC Indicator Light” come on momen-
tarily each time the ignition is placed in the
ON/RUN or ACC/ON/RUN position.• The ESC system will make buzzing or click-
ing sounds when it is active. This is normal;
the sounds will stop when ESC becomes
inactive.
• This light will come on when the vehicle is
in an ESC event.— Electronic Stability Control (ESC) Off
Warning Light — If Equipped
This light indicates the Electronic Stability
Control (ESC) is off.
Each time the ignition is turned to ON/RUN
or ACC/ON/RUN, the ESC system will be on,
even if it was turned off previously.
— Low Fuel Warning Light
When the fuel level reaches approximately
2.8 gal (10.6 L), this light will turn on and a
chime will sound. The light will remain on
until fuel is added.
— Engine Check/Malfunction Indica-
tor Warning Light (MIL)
The Engine Check/Malfunction Indicator
Light (MIL) is a part of an Onboard Diagnostic
System called OBD II that monitors engine
61

and automatic transmission control systems.
The light will illuminate when the ignition is
in the ON/RUN position before engine start.
If the bulb does not come on when turning
the ignition switch from OFF to ON/RUN,
have the condition checked promptly.
Certain conditions, such as a loose or missing
gas cap, poor quality fuel, etc., may illumi-
nate the light after engine start. The vehicle
should be serviced if the light stays on
through several typical driving styles. In most
situations, the vehicle will drive normally and
will not require towing.
When the engine is running, the MIL may
flash to alert serious conditions that could
lead to immediate loss of power or severe
catalytic converter damage. The vehicle
should be serviced as soon as possible if this
occurs.
WARNING!
A malfunctioning catalytic converter, as
referenced above, can reach higher tem-
peratures than in normal operating condi-
tions. This can cause a fire if you drive
WARNING!
slowly or park over flammable substances
such as dry plants, wood, cardboard, etc.
This could result in death or serious injury
to the driver, occupants or others.
CAUTION!
Prolonged driving with the Malfunction
Indicator Light (MIL) on could cause dam-
age to the vehicle control system. It also
could affect fuel economy and driveability.
If the MIL is flashing, severe catalytic
converter damage and power loss will soon
occur. Immediate service is required.
— Tire Pressure Monitoring System
(TPMS) Warning Light
The warning light switches on and a message
is displayed to indicate that the tire pressure
is lower than the recommended value and/or
that slow pressure loss is occurring. In these
cases, optimal tire duration and fuel con-
sumption may not be guaranteed.Should one or more tires be in the condition
mentioned above, the display will show the
indications corresponding to each tire in
sequence.
CAUTION!
Do not continue driving with one or more
flat tires as handling may be compro-
mised. Stop the vehicle, avoiding sharp
braking and steering. If a tire puncture
occurs, repair immediately using the dedi-
cated tire repair kit and contact your au-
thorized dealer as soon as possible.
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la-
bel. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or tire inflation pressure label, you
should determine the proper tire inflation
pressure for those tires.)
GETTING TO KNOW YOUR INSTRUMENT PANEL
62