2020 JEEP WRANGLER UNLIMITED warning

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HOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL
Essential Information
Consult the Table of Contents to determine
which section contains the information you
desire.
Since the specification of your vehicle
depends on the items of equipment ordered,
certain descriptions and illustrations may
differ from your vehicle's equipment.
The detailed Index at the back of this User
Guide contains a complete listing of all
subjects.
Symbols
Some vehicle components have colored
labels whose symbols indicate precautions to
be observed when using this component.
Refer to “Warning Lights and Messages” in
“Getting To Know Your Instrument Panel”
for further information on the symbols used
in your vehicle.
ROLLOVER WARNING
Utility vehicles have a significantly higher
rollover rate than other types of vehicles.
This vehicle has a higher ground clearanceand a higher center of gravity than many
passenger vehicles. It is capable of
performing better in a wide variety of off-road
applications. Driven in an unsafe manner, all
vehicles can go out of control. Because of the
higher center of gravity, if this vehicle is out
of control it may roll over when some other
vehicles may not.
Do not attempt sharp turns, abrupt maneu
-
vers, or other unsafe driving actions that can
cause loss of vehicle control. Failure to
operate this vehicle safely may result in a
collision, rollover of the vehicle, and severe
or fatal injury. Drive carefully.
Rollover Warning Label

Failure to use the driver and passenger seat
belts provided is a major cause of severe or
fatal injury. In a rollover crash, an unbelted person is significantly more likely to die than a
person wearing a seat belt. Always buckle up.

WARNINGS AND CAUTIONS
This User Guide contains
WARNINGS against
operating procedures that could result in a
collision, bodily injury and/or death. It also
contains CAUTIONS against procedures that
could result in damage to your vehicle. If you
do not read this entire guide, you may miss
important information. Observe all Warnings
and Cautions.
VEHICLE MODIFICATIONS/
ALTERATIONS
WARNING!
Any modifications or alterations to this
vehicle could seriously affect its
roadworthiness and safety and may lead to
a collision resulting in serious injury or
death.
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WELCOME FROM FCA
HOW TO FIND YOUR OWNER’S MANUAL
ONLINE ................................................... 1
HOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL ..................... 2
Essential Information ........................ 2
Symbols .......................................... 2
ROLLOVER WARNING ............................... 2
WARNINGS AND CAUTIONS ..................... 2

VEHICLE MODIFICATIONS/ALTERATIONS .... 2

GETTING TO KNOW YOUR VEHICLE
KEYS ................................................... 11
Key Fob ......................................... 11
IGNITION SWITCH .................................. 12
Keyless Enter-N-Go — Ignition ........ 12
REMOTE STARTING SYSTEM —
IF EQUIPPED .......................................... 14
How To Use Remote Start ............... 14
To Enter Remote Start Mode............ 15
VEHICLE SECURITY ALARM —
IF EQUIPPED ......................................... 15
To Arm The System ....................... 15
To Disarm The System ................... 15
PREMIUM VEHICLE SECURITY ALARM —
IF EQUIPPED .........................................16
To Arm The System ........................ 16
To Disarm The System .................... 17
Security System Manual Override..... 17
DOORS ................................................. 18
Keyless Enter-N-Go — Passive Entry
(If Equipped) ................................ 18 Child-Protection Door Lock System —
Rear Doors..................................... 20 Front Door Removal ........................ 21
Rear Door Removal
(Four-Door Models) ........................ 23
SEATS................................................... 24
Heated Seats — If Equipped ........... 25
Front Passenger Easy Entry Seat —
Two Door Models ............................ 26 60/40 Split Folding Rear Seat —
Four Door Models ........................... 26 Fold And Tumble Rear Seat —
Two Door Models ............................ 27
HEAD RESTRAINTS.................................28
Front Head Restraints ..................... 28
Rear Head Restraints — Two Door
Models .......................................... 29 Rear Head Restraints — Four Door
Models .......................................... 30
STEERING WHEEL ..................................31
Tilt/Telescoping Steering Column .....31
Heated Steering Wheel —
If Equipped ....................................31
EXTERIOR LIGHTS ..................................32
Headlight Switch ............................32
Daytime Running Lights —
If Equipped ...................................32 High/Low Beam Switch....................32
Automatic High Beam —
If Equipped ....................................33 Flash-To-Pass .................................33
Automatic Headlights —
If Equipped ...................................33 Front And Rear Fog Lights —
If Equipped ....................................33 Turn Signals ...................................34
Lights-On Reminder ........................34
Headlight Leveling System — If
Equipped ......................................34
WINDSHIELD WIPERS AND WASHERS......35
Windshield Wiper Operation .............35
CLIMATE CONTROLS ...............................36

Automatic Climate Controls Overview ....37

Climate Control Functions................44
Automatic Temperature Control (ATC) —
If Equipped ....................................44 Operating Tips ...............................45
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POWER WINDOWS — IF EQUIPPED ........ 46
Auto-Down Feature ........................ 46
Wind Buffeting .............................. 47
REMOVABLE TOP INFORMATION ............. 47
Soft Top — Two And Four Door
Models ......................................... 47 Freedom Top And Hard Top ............. 51
Dual Top — If Equipped ................ 53
POWER SLIDING TOP — IF EQUIPPED ...... 53
Opening The Power Top .................. 54
Closing The Power Top .................... 54
Pinch Protect Feature ..................... 54
HOOD .................................................... 55
Opening The Hood .......................... 55
Closing The Hood ........................... 55
REAR SWING GATE................................. 55
INTERNAL EQUIPMENT ........................... 56
Electrical Power Outlets .................. 56
Power Inverter — If Equipped ......... 57
Auxiliary Switches — If Equipped .... 58
ROOF LUGGAGE RACK — IF EQUIPPED ..... 58
ENVIRONMENTAL PROTECTION
SYSTEMS — IF EQUIPPED ...................... 59 GETTING TO KNOW YOUR INSTRUMENT
PANEL
INSTRUMENT CLUSTER DISPLAY ............ 60
Instrument Cluster Display Location
And Controls .................................. 60 Oil Change Indicator System —
If Equipped .................................. 61 Instrument Cluster Display
Selectable Items ........................... 61 Gear Shift Indicator (GSI) —
If Equipped ................................... 62 Diesel Displays .............................. 62
Diesel Particulate Filter (DPF)
Messages ..................................... 62 Fuel System Messages .................... 63
WARNING LIGHTS AND MESSAGES.......... 65
Red Warning Lights ........................ 65
Yellow Warning Lights..................... 68
Yellow Indicator Lights ................... 72
Green Indicator Lights .................... 73
White Indicator Lights .................... 74
Blue Indicator Lights ...................... 76
ONBOARD DIAGNOSTIC SYSTEM —
OBD II ..................................................77
Onboard Diagnostic System (OBD II)
Cybersecurity ................................. 77
SAFETY
SAFETY FEATURES .................................78
Anti-Lock Brake System (ABS) ........78
Electronic Brake Control (EBC)
System .........................................79
AUXILIARY DRIVING SYSTEMS ................87
Blind Spot Monitoring (BSM) —
If Equipped ...................................87 Forward Collision Warning (FCW) With
Mitigation — If Equipped ................89 Tire Pressure Monitoring
System (TPMS) ..............................92
OCCUPANT RESTRAINT SYSTEMS ..........97
Occupant Restraint Systems
Features ........................................97 Important Safety Precautions ...........97
Seat Belt Systems ..........................98
Supplemental Restraint
Systems (SRS)..............................104 Child Restraints — Carrying Children
Safely ..........................................117 Transporting Pets .........................134
SAFETY TIPS ......................................135
Transporting Passengers ................135
Exhaust Gas ................................135
Safety Checks You Should Make
Inside The Vehicle .......................136 Periodic Safety Checks You Should
Make Outside The Vehicle..............137
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STARTING AND OPERATING
STARTING THE ENGINE ........................ 138
Normal Starting —
Gasoline Engine ........................... 138
Normal Starting — Diesel Engine ......... 141
Diesel Engine Warm-Up ................ 141
Diesel Engine Idling —
In Cold Weather ........................... 142 Stopping the Engine ..................... 142

ENGINE BREAK-IN RECOMMENDATIONS .... 143

AUTOMATIC TRANSMISSION................. 143
Ignition Park Interlock................... 144
Brake/Transmission Shift Interlock
System ....................................... 144 Eight–Speed Automatic
Transmission................................ 145
FOUR–WHEEL DRIVE OPERATION .......... 146
Four-Position Transfer Case ........... 146
Five-Position Transfer Case ........... 148
Trac-Lok Rear Axle —
If Equipped ................................. 151 Axle Lock (Tru-Lok) —
Rubicon Models ........................... 151 Electronic Sway Bar Disconnect —
If Equipped ................................. 152
STOP/START SYSTEM — AUTOMATIC
TRANSMISSION (IF EQUIPPED) .............153
Automatic Mode ........................... 154
Possible Reasons The Engine Does
Not Autostop ............................... 154 To Start The Engine While In
Autostop Mode ............................. 155 To Manually Turn Off The
Stop/Start System ........................ 155 To Manually Turn On The
Stop/Start System ........................ 155 System Malfunction...................... 155
ACTIVE SPEED LIMITER —
IF EQUIPPED .......................................156
Activation .................................... 156
Exceeding The Set Speed.............. 156
Deactivation ................................ 156
SPEED CONTROL ..................................157
To Activate .................................. 157
To Set A Desired Speed ................ 158
To Resume Speed ....................... 158
To Deactivate .............................. 158
ADAPTIVE CRUISE CONTROL (ACC) —
IF EQUIPPED .......................................158
To Activate/Deactivate .................. 158
To Set A Desired ACC Speed ......... 159
To Resume .................................. 159
To Vary The Speed Setting ........... 159
Setting The Following Distance
In ACC ........................................ 160
PARKSENSE REAR PARK ASSIST —
IF EQUIPPED ........................................161
ParkSense Sensors ........................161
Enabling And Disabling
ParkSense ....................................161 ParkSense System Usage
Precautions ..................................162
PARKSENSE FRONT AND
REAR PARK ASSIST — IF EQUIPPED ......163
ParkSense Sensors ........................163
ParkSense Warning Display ............163
ParkSense Display ........................163
Enabling And Disabling
ParkSense ....................................165 Service The ParkSense Park Assist
System ........................................166 Cleaning The ParkSense System .....166
ParkSense System Usage
Precautions ..................................166
PARKVIEW REAR BACK UP CAMERA —
IF EQUIPPED ........................................167
REFUELING THE VEHICLE .....................169
Fuel Filler Cap ..............................169
Loose Fuel Filler Cap Message ......170
REFUELING THE VEHICLE — DIESEL ......170
AdBlue® (UREA) — If Equipped ....171
VEHICLE LOADING ...............................174
Weights Label...............................174
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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
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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.

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GETTING TO KNOW YOUR VEHICLE
12

In this situation, a back up method can be used
to operate the ignition switch. Put the nose side
of the key fob against the START/STOP ignition
button, and push to operate the ignition switch.
Backup Starting Method
NOTE:
Improper disposal of key fob batteries may
be harmful to the environment. Please see an
authorized dealer for proper battery disposal.
To Unlock The Doors And Swing Gate
Push and release the key fob unlock button
once to unlock the driver's door only, or twice
to unlock all the doors and swing gate. When
the key fob unlock button is pushed, the Illu -
minated Entry will initiate, and the turn
signal lights will flash twice.
To Lock The Doors And Swing Gate
Push and release the lock button on the key
fob to lock all doors. The turn signals will
flash, and the horn will chirp once to
acknowledge the lock signal.
Request For Additional 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
programmed to a vehicle, it cannot be
programmed to any other vehicle.
Duplication of key fobs may be performed at
an authorized dealer. This procedure
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
System serviced, bring all vehicle keys
with you to an authorized dealer.
Keys must be ordered to the correct key
cut to match the vehicle locks.
IGNITION SWITCH
Keyless Enter-N-Go — Ignition
This feature allows the driver to operate the
ignition switch with the push of a button as
long as the key fob is in the passenger
compartment.
The Keyless Push Button Ignition has several
operating modes that are labeled and will
illuminate when in position. These modes
are OFF, ACC, RUN, and START.
NOTE:
In case the ignition switch does not change
with the push of a button, the key fob may
have a low or depleted battery. In this situa
-
tion, a back up method can be used to
operate the ignition switch. Put the nose side
of the key fob (side with the mechanical key)
against the START/STOP ignition button and
push to operate the ignition switch.
WARNING!
Always remove the key fobs from the
vehicle and lock all doors when leaving
the vehicle unattended.
Always remember to place the ignition in
the OFF mode.
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(Continued)
START/STOP Ignition Button
The push button ignition can be placed in
the following modes:
OFF
The engine is stopped.
Some electrical devices (e.g. Central
locking, alarm, etc.) are available.
ACC
Engine is not started.
Some electrical devices are available. RUN

Driving position.
All electrical devices are available.
START
The engine will start.
NOTE:
Refer to "Starting The Engine" in "Starting
And Operating" in the Owner’s Manual for
further information.
WARNING!
When exiting the vehicle, always remove
the key fob from the vehicle and lock
your vehicle.
Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Allowing children to be in a vehicle unat-
tended is dangerous for a number of
reasons. A child or others could be seri -
ously or fatally injured. Children should
be warned not to touch the parking
brake, brake pedal or the gear selector.
Do not leave the key fob in or near the
vehicle, or in a location accessible to
children, and do not leave the ignition of
a vehicle equipped with Keyless
Enter-N-Go in the ON/RUN mode. A
child could operate power windows,
other controls, or move the vehicle.
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
CAUTION!
An unlocked vehicle is an invitation for
thieves. Always remove key fob from the
vehicle and lock all doors when leaving the
vehicle unattended.
WARNING! (Continued)
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