ESP JEEP WRANGLER UNLIMITED 2021 Owner handbook (in English)

1
WELCOME FROM FCA

Congratulations on selecting your new FCA
vehicle. Be assured that it represents preci-
sion 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 respon -
sibility and assume all risks related to the
use of the features and applications in this
vehicle. Only use the features and applica -
tions 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 oper -
ation 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 reserves the right to
make changes in design and specifications
and/or make additions to or improvements to
its products without imposing any obligation
upon itself to install them on products previ -
ously manufactured. This User Guide has been prepared to help
you quickly become acquainted with the
important features of your vehicle. It
contains most things you will need to operate
and maintain the vehicle, including emer
-
gency information.
When it comes to service, remember that an
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 guide has been prepared as a reference
item to help you quickly become acquainted
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 informa -
tion 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
vehicle. 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
vehicle 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 or alternatively, to
access this information, go to the website at
http://aftersales.fiat.com/elum/.
FCA is committed to protecting our environ -
ment and natural resources. By converting
from paper to electronic delivery for the
majority of the user information for your
vehicle, together we greatly reduce the
demand for tree-based products and lessen
the stress on our environment.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 1

7
TRAILER TOWING ................................ 175

Trailer Towing Weights
(Maximum Trailer Weight Ratings)..... 175

RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ............................. 176
Towing This Vehicle Behind
Another Vehicle ............................ 176 Recreational Towing — Four-Wheel
Drive Models ................................ 176
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS............... 179
BULB REPLACEMENT............................ 179
Replacement Bulbs ...................... 179
Bulb Replacement ........................ 181
FUSES ............................................... 183
General Information ...................... 183
Power Distribution Center (PDC) .... 184
JACKING AND TIRE CHANGING .............. 192
Jack Location .............................. 193
Spare Tire Removal ...................... 193
Preparations For Jacking .............. 194
Jacking Instructions ...................... 195
Road Tire Installation.................... 197
Declaration Of Conformance .......... 198
Jack Usage Precautions................. 200
JUMP STARTING .................................. 201
Preparations For Jump Start .......... 201
Jump Starting Procedure ............... 202
IF YOUR ENGINE OVERHEATS ...............204
MANUAL PARK RELEASE .....................204
FREEING A STUCK VEHICLE ..................206
TOWING A DISABLED VEHICLE ..............207
Four–Wheel Drive Models .............. 208
Without The Key Fob .................... 208
Tow Eye Usage............................. 208
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS) ..................................209
EVENT DATA RECORDER (EDR) ..............209
SERVICING AND MAINTENANCE
SCHEDULED SERVICING .......................210
Scheduled Servicing —
Gasoline Engine ........................... 210 Scheduled Servicing —
Diesel Engine............................... 216
ENGINE COMPARTMENT .......................221
2.0L Gasoline Engine .................. 221
3.6L Gasoline Engine .................. 222
2.2L Diesel Engine ....................... 223
Checking Oil Level —
Gasoline Engine .......................... 224 Adding Washer Fluid .................... 224
Maintenance-Free Battery ............ 225
Pressure Washing ......................... 225
DEALER SERVICE .................................226
Windshield Wiper Blades ...............226
Exhaust System ...........................228
Cooling System .............................229
Brake System ..............................230
Automatic Transmission ................231
RAISING THE VEHICLE ..........................232 TIRES .................................................232
Tires — General Information .........232
Tire Types ....................................237
Spare Tires — If Equipped ............237
Wheel And Wheel Trim Care ..........239

Tire Chains And Traction Devices ..... 240

Tire Rotation Recommendations ....241
STORING THE VEHICLE .........................241
BODYWORK .........................................242
Body And Underbody
Maintenance ................................242 Preserving The Bodywork ...............243
INTERIORS ..........................................245
Seats And Fabric Parts ..................245
Plastic And Coated Parts ...............246
Leather Parts ................................246
Glass Surfaces .............................246
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 7

11
GETTING TO KNOW YOUR VEHICLE
KEYS
Key Fob
Key FobYour vehicle uses a keyless ignition system.
The ignition system consists of a key fob with
Keyless Go and a START/STOP push button
ignition system. The Remote Keyless Entry
(RKE) system consists of a key fob with a
mechanical key and Keyless Enter-N-Go
feature (if equipped).
NOTE:
The key fob may not be detected by the
vehicle if it is located next to a mobile phone,
laptop or other electronic device; these
devices may block the key fob’s wireless
signal.
The key fob allows you to lock or unlock the
doors and swing gate from distances up to
approximately 66 ft (20 m). The key fob
does not need to be pointed at the vehicle to
activate the system. NOTE:
With the ignition in the ON/RUN position
and with the vehicle doors open, the lock
button will be disabled, and only the unlock
button will be enabled. All RKE commands
will be disabled once the vehicle begins
moving at 2 mph (4 km/h) or above.
Backup Mode Starting
In case the ignition switch does not change
with the push of a button, the key fob may
have a low or fully depleted battery. A low key
fob battery can be verified by referring to the
instrument cluster, which will display direc
-
tions to follow.
NOTE:
A low key fob battery condition may be indi -
cated by a message in the instrument cluster
display, or by the LED light on the key fob. If
the LED key fob light no longer illuminates
from key fob button pushes, then the key fob
battery requires replacement.
1 — Key Release Button
2 — Unlock Button
3 — Lock Button
4 — Remote Start
WARNING!
Push the Mechanical Key Release Button
only with the key fob facing away from
your body, especially your eyes and objects
that may be damaged, such as clothing.
CAUTION!

The electrical components inside of the key
fob may be damaged if the key fob is
subjected to strong electrical shocks. In
order to ensure complete efficiency of the
electronic devices inside of the key fob,
avoid exposing the key fob to direct sunlight.

2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 11

GETTING TO KNOW YOUR VEHICLE
18
DOORS
Keyless Enter-N-Go — Passive Entry (If
Equipped)
The Passive Entry system is a feature that
allows you to lock and unlock the vehicle’s
door(s) and swing gate without having to
push the key fob lock or unlock buttons.
NOTE:
Passive Entry may be programmed on/off.
Refer to “Uconnect Settings” in “Multi-
media” in the Owner’s Manual for further
information.
The key fob may not be detected by the
vehicle Passive Entry system if it is
located next to a mobile phone, laptop, or
other electronic device; these devices may
interfere with the key fob’s wireless signal
and prevent the Passive Entry system from
locking/unlocking the vehicle.
Passive Entry Unlock initiates illuminated
approach (Low Beams, License Plate
Lamp, Position Lamps) for whichever time
duration is set between 0, 30 (default), 60
or 90 seconds. Passive Entry Unlock also
initiates two flashes of the turn signal
lamps.
If wearing gloves on your hands, or if it has
been raining/snowing on the Passive Entry
door handle, the unlock sensitivity can be
affected, resulting in a slower response
time.
If the vehicle is unlocked by Passive Entry
and no door is opened within 60 seconds,
the vehicle will re-lock and if equipped
will arm the security alarm.
To Unlock From The Driver Side
With a valid Passive Entry key fob within 5 ft
(1.5 m) of the driver's door handle, grab the
front driver door handle to unlock the driver's
door automatically. Grab The Door Handle To Unlock

NOTE:
If “1st Press Of Key Fob Unlock” is
programmed all doors will unlock when you
grab hold of the front driver’s door handle. To
select between “Unlock Driver Door 1st Press”
and “Unlock All Doors 1st Press,” refer to
“Uconnect Settings” in “Multimedia” in the
Owner’s Manual for further information.

To Unlock From The Passenger Side
With a valid Passive Entry key fob within 5 ft
(1.5 m) of the passenger door handle, grab
the front passenger door handle to unlock all
doors and the swing gate automatically.
CAUTION!
Careless handling and storage of the
removable door panels may damage the
seals, causing water to leak into the
vehicle’s interior.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 18

25
Heated Seats — If Equipped
The heated seats control buttons are located
on the center instrument panel below the
touchscreen, and are also located within the
climate or controls screen of the touch-
screen. Heated Seat Buttons
Push the heated seat button once to
turn the HI setting on.
Push the heated seat button a second
time to turn the MED setting on.
Push the heated seat button a third
time to turn the LO setting on.
Push the heated seat button a fourth
time to turn the heating elements off.
NOTE:
The engine must be running for the heated
seats to operate.
The level of heat selected will stay on until
the operator changes it. Vehicles Equipped With Remote Start
On models that are equipped with remote
start, the driver’s heated seat can be
programmed to come on during a remote
start.
This feature can be programmed through the
Uconnect system. Refer to “Uconnect
Settings” in “Multimedia” in the Owner’s
Manual for further information.
WARNING!
Adjusting a seat while driving may be
dangerous. Moving a seat while driving
could result in loss of control which
could cause a collision and serious injury
or death.
Seats should be adjusted before
fastening the seat belts and while the
vehicle is parked. Serious injury or death
could result from a poorly adjusted seat
belt.
Do not ride with the seatback reclined so
that the shoulder belt is no longer resting
against your chest. In a collision you
could slide under the seat belt, which
could result in serious injury or death.
WARNING!
Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaus-
tion or other physical condition must
exercise care when using the seat heater.
It may cause burns even at low tempera-
tures, especially if used for long periods
of time.
Do not place anything on the seat or
seatback that insulates against heat,
such as a blanket or cushion. This may
cause the seat heater to overheat. Sitting
in a seat that has been overheated could
cause serious burns due to the increased
surface temperature of the seat.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 25

GETTING TO KNOW YOUR VEHICLE
32
EXTERIOR LIGHTS
Headlight Switch
The headlight switch is located on the right
side of the instrument panel. This switch
controls the operation of the headlights,
parking lights, automatic headlights (if
equipped), instrument panel lights, instru-
ment panel light operation, interior lights,
fog lights (if equipped), and headlight
leveling (if equipped). Headlight Switch
Rotate the headlight switch clockwise to the
first detent for parking light and instrument
panel light operation. Rotate the headlight
switch to the second detent for headlight,
parking light, and instrument panel light
operation.
Daytime Running Lights — If Equipped
The Daytime Running Lights (DRLs) are in a
dedicated position below the headlight
assembly. DRLs are active when the Low Beams are not and when the vehicle is
shifted into any position other than PARK.
NOTE:
The Daytime Running Lights, on the same
side of the vehicle as the active turn signal,
will turn off automatically when a turn signal
is in operation and turn on again when the
turn signal is not operating.
High/Low Beam Switch
Push the multifunction lever toward the
instrument panel to switch the headlights to
high beams. The lever will return to the
centered position. To return the headlights to
low beam, pull the lever toward the steering
wheel, or push the lever toward the instru
-
ment panel.
Multifunction Lever
WARNING!
Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaus-
tion, or other physical conditions must
exercise care when using the steering
wheel heater. It may cause burns even at
low temperatures, especially if used for
long periods.
Do not place anything on the steering
wheel that insulates against heat, such
as a blanket or steering wheel covers of
any type and material. This may cause
the steering wheel heater to overheat.1 — Instrument Panel Dimmer Control
2 — Headlight Leveling Control
3 — Headlight Control Switch
4 — Front Fog Lights
5 — Rear Fog Lights
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 32

GETTING TO KNOW YOUR VEHICLE
34
Turn Signals
Move the multifunction lever up or down and
the arrows on each side of the instrument
cluster flash to show proper operation of the
front and rear turn signal lights.
NOTE:
If either light remains on and does not flash,
or there is a very fast flash rate, check for a
defective outside light bulb. If an indicator
fails to light when the lever is moved, it
would suggest that the indicator bulb is
defective.
Lights-On Reminder
If the headlights, parking lights, or cargo
lights are left on after the ignition is placed
in the OFF position, a chime will sound when
the driver’s door is opened.
Headlight Leveling System — If Equipped

Your vehicle may be equipped with a headlight
leveling system. This system allows the driver
to maintain proper headlight beam position
with the road surface regardless of vehicle load.
The control switch is located on the instrument
panel next to the dimmer control.
Headlight Leveling Control
To operate, rotate the control switch until the
appropriate number, which corresponds to
the load listed on the chart, aligns with the
indicator line on the switch.
0 /1 Driver only, or driver and front passenger.
2 All seating positions occupied, plus an evenly distributed load in the
luggage compartment. The total weight of passengers and load does not exceed the maximum load capacity of the vehicle.
3 Driver, plus an evenly distributed load in the luggage compartment.
The total weight of the driver and load does not exceed the maximum load capacity of the vehicle.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 34

71
Should one or more tires be in the condition
mentioned above, the display will show the
indications corresponding to each tire.
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
label. 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.
As an added safety feature, your vehicle has
been equipped with a Tire Pressure Moni -
toring System (TPMS) that illuminates a low
tire pressure telltale when one or more of
your tires is significantly under-inflated.
Accordingly, when the low tire pressure tell -tale illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
significantly under-inflated tire causes the
tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the
vehicle’s handling and stopping ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the
driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is
combined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately one
minute and then remain continuously illumi
-
nated. This sequence will continue upon
subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended. TPMS malfunctions may occur
for a variety of reasons, including the instal -lation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle to
ensure that the replacement or alternate
tires and wheels allow the TPMS to continue
to function properly.
CAUTION!
Do not continue driving with one or more
flat tires as handling may be
compromised. Stop the vehicle, avoiding
sharp braking and steering. If a tire
puncture occurs, repair immediately using
the dedicated tire repair kit and contact an
authorized dealer as soon as possible.
CAUTION!
The TPMS has been optimized for the
original equipment tires and wheels.
TPMS pressures and warning have been
established for the tire size equipped on
your vehicle. Undesirable system operation
or sensor damage may result when using
replacement equipment that is not of the
same size, type, and/or style. Aftermarket
wheels can cause sensor damage. Using
aftermarket tire sealants may cause the
Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using
an aftermarket tire sealant it is
recommended that you take your vehicle to
an authorized dealer to have your sensor
function checked.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 71

GETTING TO KNOW YOUR INSTRUMENT PANEL
74
— Cruise Control SET Indicator Light — If
Equipped With A Premium Instrument Cluster

This indicator light will illuminate when the
speed control is set to the desired speed. Refer
to “Speed Control — If Equipped” in “Starting
And Operating” for further information.

— Front Fog Indicator Light — If Equipped
This indicator light will illuminate when the
front fog lights are on.
— Park/Headlight On Indicator Light
This indicator light will illuminate when the
park lights or headlights are turned on.
— Rear Seat Belt Fastened Indicator Light
— If Equipped
This light indicates when a rear seat belt has
been buckled in the second row. A telltale
will display in the upper right corner of the
instrument cluster display to correspond to
the specific seating position once the seat
belt has been buckled.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Stop/Start Active Indicator Light — If
Equipped
This indicator light will illuminate when the
Stop/Start function is in “Autostop” mode.
— Turn Signal Indicator Lights
When the left or right turn signal is activated,
the turn signal indicator will flash inde -
pendently and the corresponding exterior
turn signal lamps will flash. Turn signals can
be activated when the multifunction lever is
moved down (left) or up (right).
NOTE:
A continuous chime will sound if the
vehicle is driven more than 1 mile
(1.6 km) with either turn signal on.
Check for an inoperative outside light bulb
if either indicator flashes at a rapid rate.
White Indicator Lights
— Adaptive Cruise Control (ACC) Ready
Light — If Equipped
This light will turn on when the vehicle
equipped with Adaptive Cruise Control (ACC)
has been turned on, but not set. Refer to
“Adaptive Cruise Control (ACC) — If
Equipped” in “Starting And Operating” for
further information.
— Two Wheel Drive High Indicator Light
— If Equipped With a Premium Cluster
This light alerts the driver that the vehicle is
in the two wheel drive high mode.
— Active Speed Limiter Ready Indicator
Light — If Equipped With A Premium
Instrument Cluster

This light will illuminate when the Active Speed
Limiter has been turned on, but not set.

Refer to “Active Speed Limiter — If
Equipped” in “Starting And Operating” for
further information.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 74

75
— Active Speed Limiter SET Indicator
Light — If Equipped With A Base Instrument
Cluster
This light will turn on when the Active Speed
Limiter is on and set to a specific speed.
Refer to “Active Speed Limiter — If
Equipped” in “Starting And Operating” for
further information.
— Hill Descent Control (HDC) Indicator
Light — If Equipped
This indicator shows when the Hill Descent
Control (HDC) feature is turned on. The lamp
will be on solid when HDC is armed. HDC can
only be armed when the transfer case is in
the “4WD LOW” position and the vehicle
speed is less then 30 mph (48 km/h). If
these conditions are not met while
attempting to use the HDC feature, the HDC
indicator light will flash on/off.
— Rear Seat Belt Fastened Indicator Light
— If Equipped
This light indicates when a rear seat belt has
been buckled in the second row. A telltale
will display in the upper right corner of the
instrument cluster display to correspond to
the specific seating position once the seat
belt has been buckled.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Rear Seat Belt Reminder Indicator
Light — If Equipped

This light indicates when a rear seat belt is
unbuckled in the second row. When the igni -
tion is first placed in the ON/RUN or ACC/ON/
RUN position, and if a seat belt in the second
row is unbuckled, a light corresponding to the
specific seat will turn on in the upper right
portion of the instrument cluster display,
momentarily replacing the configurable corner
information. If a second row seat belt that was
buckled at the start of the trip is unbuckled,
the Rear Seat Belt Reminder Light will change
from the buckled to the unbuckled symbol, and
a chime will sound.

Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Rear Seat Unoccupied Indicator Light
— If Equipped
This light indicates when the rear passenger
seats are unoccupied, and will illuminate in
the upper right portion of the instrument
cluster display, momentarily replacing the
configurable corner information.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
— Speed Warning Indicator Light — If
Equipped
When Set Speed Warning is turned on, the
speed warning telltale will illuminate in the
instrument cluster with a number matching
the set speed. When the set speed is
exceeded, the indication will light up yellow
and flash along with a continuous chime (up
to 10 seconds or until the speed is no longer
exceeded). Speed Warning can be turned on
and off in the instrument cluster display, for
further information refer to “Instrument
Cluster Display Menu Items” in “Getting To
Know Your Instrument Panel.”
The number “55” is only an example of a
speed that can be set.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 75