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
GETTING TO KNOW YOUR VEHICLE
36
Mist Feature
Push upward on the wiper lever to activate a
single wipe to clear off road mist or spray
from a passing vehicle. As long as the lever
is held up, the wipers will continue to
operate.
NOTE:
The mist feature does not activate the
washer pump; therefore, no washer fluid will
be sprayed on the windshield. The wash
function must be used in order to spray the
windshield with washer fluid.
Rear Window Wiper/Washer — If Equipped
A rotary switch on the center portion of the
windshield wiper/washer lever controls the
operation of the rear wiper/washer function.Rear Wiper/Washer Control
Rotate the switch upward to the first detent
position for intermittent operation and to the
second detent for continuous rear wiper
operation. Push the wiper lever toward the instrument
panel to activate the rear washer. The washer
pump and wiper will continue to operate as
long as the lever is held.
If the rear wiper is operating when the igni
-
tion is placed in the OFF position, the wiper
will automatically return to the “park” posi -
tion. When the vehicle is restarted, the wiper
will resume function at whichever position
the switch is set at.
CLIMATE CONTROLS
The Climate Control system allows you to
regulate the temperature, air flow, and direc -
tion of air circulating throughout the vehicle.
The controls are located on the touchscreen
(if equipped) and on the instrument panel
below the radio.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 36
SERVICING AND MAINTENANCE
224
(Continued)
Checking Oil Level — Gasoline Engine
To ensure proper lubrication of your vehicle's
engine, the engine oil must be maintained at
the correct level. The engine oil level should
be checked five minutes after a warmed up
engine has been shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Always maintain the oil level
within the SAFE zone on the dipstick. Adding
1 quart (0.95 liters) of oil when the reading
is at the bottom of the crosshatch zone will
result in a reading at the top of the cross-
hatch zone on these engines.
Adding Washer Fluid
The fluid reservoir for the windshield
washers and the rear window washer (if
equipped) is shared. The fluid reservoir is
located in the engine compartment. Be sure
to check the fluid level at regular intervals.
Fill the reservoir with windshield washer
solvent only (not radiator antifreeze). When
refilling the washer fluid reservoir, take some
washer fluid and apply it to a cloth or towel
and wipe clean the wiper blades; this will
help blade performance.
To prevent freeze-up of your windshield
washer system in cold weather, select a solu -
tion or mixture that meets or exceeds the
temperature range of your climate. This
rating information can be found on most
washer fluid containers. WARNING!
Never smoke while working in the engine
compartment: gas and inflammable vapors
may be present, with the risk of fire.
Be very careful when working in the
engine compartment when the engine is
hot: you may get burned. Do not get too
close to the radiator cooling fan: the
electric fan may start; danger of injury.
Scarves, ties and other loose clothing
might be pulled by moving parts.
CAUTION!
Be careful not to confuse the various
types of fluids while topping up: they are
not compatible with each other! Topping
up with an unsuitable fluid could
severely damage your car.
The oil level must never exceed the MAX
mark.
Always top up using engine oil of the
same specifications as that already in
the engine.
If the engine oil is being topped up, wait
for the engine to cool down before loos-
ening the filler cap, particularly for vehi -
cles with aluminium cap (if equipped).
WARNING: risk of burns!
Overfilling or underfilling the crankcase
will cause aeration or loss of oil pressure.
This could damage your engine.
CAUTION! (Continued)
WARNING!
Commercial windshield washer solvents
are flammable. They could ignite and burn
you. Care must be exercised when filling or
working around the washer solution.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 224
SERVICING AND MAINTENANCE
226
DEALER SERVICE
An authorized dealer has the qualified
service personnel, special tools, and equip-
ment to perform all service operations in an
expert manner. Service Manuals are avail -
able which include detailed service informa -
tion for your vehicle. Refer to these Service
Manuals before attempting any procedure
yourself.
NOTE:
Intentional tampering with emissions control
systems may void your warranty and could
result in civil penalties being assessed
against you.
Windshield Wiper Blades
Clean the rubber edges of the wiper blades
and the windshield periodically with a
sponge or soft cloth and a mild nonabrasive
cleaner. This will remove accumulations of
salt or road film.
Operation of the wipers on dry glass for long
periods may cause deterioration of the wiper
blades. Always use washer fluid when using
the wipers to remove salt or dirt from a dry
windshield.
Avoid using the wiper blades to remove frost
or ice from the windshield. Keep the blade
rubber out of contact with petroleum prod -
ucts such as engine oil, gasoline, etc.
NOTE:
Life expectancy of wiper blades varies
depending on geographical area and
frequency of use. Poor performance of
blades may be present with chattering,
marks, water lines or wet spots. If any of
these conditions are present, clean the wiper
blades or replace as necessary. The wiper blades and wiper arms should be
inspected periodically, not just when wiper
performance problems are experienced. This
inspection should include the following
points:
Wear or uneven edges
Foreign material
Hardening or cracking
Deformation or fatigue
If a wiper blade or wiper arm is damaged,
replace the affected wiper arm or blade with
a new unit. Do not attempt to repair a wiper
arm or blade that is damaged.
WARNING!
You can be badly injured working on or
around a motor vehicle. Only do service
work for which you have the knowledge
and the proper equipment. If you have any
doubt about your ability to perform a
service job, take your vehicle to a
competent mechanic.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 226
320
INDEX
C
Camera, Rear .................................... 167
Capacities, Fluid................................ 253
Caps, FillerFuel ...................................... 169 , 170
Oil (Engine) ................................... 221
Car Washes ....................................... 243
Carbon Monoxide Warning .................. 135
Center High Mounted Stop Light ......... 183
Certification Label ............................. 174
Chains, Tire ...................................... 240
Change Oil Indicator ............................ 61
Changing A Flat Tire .......................... 232
Checking Your Vehicle For Safety ........ 135
Checks, Safety .................................. 135
Cleaning Wheels .......................................... 239
Climate Control Automatic........................................ 37
Clock Settings ................................... 261
Compact Spare Tire ........................... 238
Connector UCI ............................................... 280
Universal Consumer Interface (UCI) ........................... 280
Cooling System .................................. 229 Cooling Capacity ............................ 253Inspection ..................................... 230
Selection Of Coolant (Antifreeze) ........................ 253 , 254 Cruise Control (Speed Control) ............ 158
Cruise Light ...................................74
, 76
Customer Assistance .......................... 304
Cybersecurity .................................... 260
D
Daytime Running Lights ....................... 32
Dealer Service ................................... 226
Defroster, Windshield......................... 136
Delay (Intermittent) Wipers .................. 35
Diagnostic System, Onboard ................. 77
Diesel Display Messages ............................. 62
Dimmer Switch Headlight ........................................ 32
Dipsticks Oil (Engine) ................................... 224
Disabled Vehicle Towing .................... 207
Do Not Disturb ...........................292 , 301
Door Ajar .......................................66 , 68
Door Ajar Light ...............................66 , 68
Doors ................................................. 18 Removal.....................................21 , 23
Removal, Front ................................ 21
Removal, Rear ................................. 23
Drag And Drop Menu ..................264 , 269
Driver’s Seat Back Tilt ......................... 24
Dual Top .......................................47 , 53 E
Electric Brake Control System ...............79
Anti-Lock Brake System ....................78
Electronic Roll Mitigation ............ 80 , 87
Electrical Outlet, Auxiliary (Power Outlet) .. 56
Electrical Power Outlets ........................56
Electronic Speed Control
(Cruise Control) ..................................157
Electronic Stability Control (ESC) ..........80
Electronic Throttle Control Warning
Light ...................................................66
Emergency, In Case Of Jacking .................................. 192 , 232
Jump Starting ................................201
Emissions..........................................258
Engine ..............................................221 Break-In Recommendations .............143Compartment ................. 221 , 222 , 223
Compartment Identification .............. 221 , 222 , 223
Coolant (Antifreeze) ........................254
Cooling ..........................................229 Exhaust Gas Caution .......................135
Fuel Requirements ................. 248 , 253
Jump Starting ................................201
Oil ........................................ 253 , 254
Oil Filler Cap ..................................221
Oil Selection ..................................253
Overheating....................................204
Starting .........................................138
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 320
322
INDEX
I
Ignition ............................................... 12Switch ............................................ 12
Installation.......................................... 51
Installing ............................................ 53
Instrument Cluster ............................... 61 Descriptions .................................... 74
Display ............................................ 60
Menu Items ..................................... 61
Instrument Panel Lens Cleaning .......... 246
Integrated Power Module (Fuses)......... 184
Interior Appearance Care .................... 245
Intermittent Wipers (Delay Wipers) ........ 35
Introduction .......................................... 1
Inverter Power.............................................. 57
J
Jack Location .................................... 193
Jack Operation .......................... 195 , 232
Jacking Instructions ........................... 195
Jump Starting ................................... 201 K
Key Fob
Arm The System .............................. 15
Disarm The System .......................... 15
Keyless Enter-N-Go.............................. 18 Passive Entry ................................... 18
Keys................................................... 11 Replacement ................................... 12
L
Lap/Shoulder Belts ............................ 100
Latches ............................................ 137 Hood .............................................. 55
Leaks, Fluid ...................................... 137
Leveling Headlights....................................... 34
Life Of Tires...................................... 235
Light Bulbs ................................137 , 179
Lights............................................... 137 Air Bag ............................ 65 , 105 , 136
Automatic Headlights ....................... 33
Brake Assist Warning........................ 82
Brake Warning ................................. 65
Bulb Replacement ..................179 , 181
Center Mounted Stop ..................... 183 Cruise ........................................74 , 76 Daytime Running ..............................32
Dimmer Switch, Headlight.................32
Electronic Stability Program (ESP)
Indicator ......................................67
Engine Temperature Warning .............67 Exterior.................................... 32 , 137
Fog ......................................... 72 , 182
Hazard Warning Flasher ..................179
Headlight Leveling ............................34
Headlights .....................................181
High Beam.......................................32
High Beam/Low Beam Select .............32 Hill Descent Control Indicator ............83Lights On Reminder ..........................34
Malfunction Indicator (Check Engine) .............................69
Park ................................................74
Passing............................................33 Rear Servicing ................................182
Rear Tail Lamps .............................182
Seat Belt Reminder .............. 67 , 74 , 75
Security Alarm .................................68
Service .................................. 179 , 181
Side Marker ...................................182
Tire Pressure Monitoring (TPMS) ........92
Traction Control................................82
Turn Signal ....................................137
Turn Signals..................... 74 , 181 , 182
Warning Instrument Cluster Descriptions ........................... 67 , 74
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 322
323
Loading Vehicle ................................. 174
LockingAxle .............................................. 151
Locks Child Protection ............................... 20
Low Tire Pressure System ..................... 92
Lowering ............................................. 47
Lowering Four Door .............................. 47
Lowering The Top ................................ 47
Lowering Two Door ............................... 47
Lug Nuts/Bolts .................................. 247
Luggage Carrier ................................... 58
M
Maintenance ....................................... 53
Maintenance Free Battery ................... 225
Maintenance Schedule ............... 210 , 216
Malfunction Indicator
Light (Check Engine)............................ 69
Manual Park Release.................................. 204
Modifications/Alterations Vehicle .............................................. 2
Monitor, Tire Pressure System ............... 92
Mopar Accessories ............................. 258
N
Navigation ........................................ 282
New Vehicle Break-In Period ............... 143 O
Occupant Restraints ............................ 97
Octane Rating, Gasoline
(Fuel) ................................ 248
, 249 , 254
Off Road Pages ................................. 277 Accessory Gauges .......................... 279
Drivetrain ...................................... 278
Pitch And Roll ............................... 279
Status Bar ..................................... 278
Oil Pressure Light ................................ 67
Oil, Engine ....................................... 254 Capacity........................................ 253
Dipstick ........................................ 224
Filter ............................................ 254
Pressure Warning Light..................... 67Recommendation ........................... 253
Viscosity ....................................... 253
Onboard Diagnostic System .................. 77
Operating Precautions .......................... 77
Overheating, Engine........................... 204
P
Paddle Shifters ................................. 145
ParkSense System, Rear .................... 161
Passenger Airbag Disable ................... 107
Passive Entry ...................................... 18
Personalized Main Menu .................... 264
Pets ................................................. 134
Phone (Uconnect).............................. 285 Pairing .......................................... 287 Phonebook ........................................291
Power
Inverter............................................57Windows ..........................................46
Power Sliding Top ................................53 Operation.........................................53
Pinch Protect ...................................53
Power Steering Fluid ..........................257
Pregnant Women And Seat Belts .........104
Preparation For Jacking ......................194
Pretensioners Seat Belts ......................................104
R
Radial Ply Tires..................................234
Radio ................................................268 Presets .................................. 262 , 265
Radio Operation ................. 261 , 263 , 270
Radio Screens ........................... 263 , 268
Raising ...............................................47
Raising Four Door ................................47
Raising The Soft Top ............................47
Raising Two Door .................................47
Rear Camera......................................167
Rear Cross Path ...................................88
Rear ParkSense System ......................161
Rear Swing Gate ..................................55
Rear Wiper/Washer ...............................36
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 323
326
INDEX
Transmission ..................................... 145Automatic.............................. 145 , 231
Fluid ............................................. 257
Maintenance .................................. 231
Shifting ......................................... 143
Transporting Pets............................... 134
Tread Wear Indicators ........................ 235
Turn Signals .........................74 , 181 , 182
U
UCI Connector ................................... 280
Uconnect Uconnect Settings .......................... 277
Uconnect 3 With 5-Inch Display.......... 261
Uconnect 4 With 7-Inch Display.......... 263
Uconnect 4 With 8.4-Inch Display....... 268
Uconnect Phone ................................ 285 Making A Call ................................ 292
Pairing .......................................... 287 Uconnect Settings
Customer Programmable Features ...............................18 , 277
Passive Entry Programming ............... 18
Universal Consumer Interface (UCI)
Connector ......................................... 280
Untwisting Procedure, Seat Belt ......... 103
V
Vehicle Identification Number (VIN) .... 247
Vehicle Loading................................. 174
Vehicle Modifications/Alterations ............ 2
Vehicle Storage ............................45 , 241
Voice Command ................. 291 , 292 , 294
Voice Recognition
System (VR) ....................... 291 , 292 , 294 W
Warning Lights (Instrument Cluster
Descriptions) .......................................69
Warnings And Cautions ...........................2
Warnings, Roll Over ................................2
Washers, Windshield ..........................224
Washing Vehicle.................................243
Wheel And Wheel Tire Care .................239
Wheel And Wheel Tire Trim .................239
Wind Buffeting ....................................47
Window Fogging ...................................45
Windows .............................................46
Power ..............................................46
Windshield Defroster ..........................136
Windshield Washers ..................... 35 , 224
Fluid .............................................224
Windshield Wiper Blades ....................226
Windshield Wipers ...............................35
Wipers Blade Replacement .................226
Wipers, Rear ........................................36
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book Page 326