
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
56
To  open  the  swing  gate,  pull  on  the  gate
handle.Swing Gate Handle
NOTE:
Close  the  rear  flip-up  window  before
attempting to close the swing gate (hard top
models only). NOTE:
The swing  gate  hinges  and  check  strap  may
require  cleaning  if  a  squeak  can  be  heard
when  opening  the  swing  gate.  Progressive
accumulation  on  the  check  strap  arm  may
cause  failure  of  the  check  strap,  requiring
replacement.  For  further  information  on
vehicle  cleaning  procedures,  refer  to  “Inte
-
riors” in “Servicing And Maintenance”.
INTERNAL EQUIPMENT
Electrical Power Outlets    
There  are  two  12  Volt  (13  Amp)  auxiliary
power  outlets  that  can  provide  power  for
accessories  designed  for  use  with  the  stan -
dard power outlet adapters.
The  front  power  outlet  is  located  in  the
center  of  the  instrument  panel  below  the
climate  controls,  and  is  powered  from  the
ignition switch. Power is available when  the
ignition  switch  is  in  the  ACC  or  ON/RUN
position. Front Power Outlet
On vehicles equipped with a rear subwoofer,
there is a second power outlet located in the
rear cargo area and is powered directly from
the vehicle battery.
Rear Cargo Power Outlet WARNING!
Driving  with  the  flip-up  window  open  can
allow  poisonous  exhaust  gases  into  your
vehicle. You and your passengers could be
injured  by  these  fumes.  Keep  the  flip-up
window  closed when you are operating the
vehicle.
 CAUTION!
Do  not  push  on  rear  wiper  blade  when
closing the rear flip-up window, as damage
to the blade will result.
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179
IN CASE OF EMERGENCY
HAZARD WARNING 
FLASHERS  
The Hazard Warning flasher switch is located
on  the  instrument  panel  below  the  climate
controls.Push  the  switch  to  turn  on  the
Hazard  Warning  flasher.  When  the
switch  is  activated,  all  directional turn  signals  will  flash  on  and  off  to  warn
oncoming  traffic of an emergency.  Push  the
switch  a  second time  to  turn off  the  Hazard
Warning flashers.
This is an  emergency warning system and it
should  not  be  used  when  the  vehicle  is  in
motion. Use it when your vehicle is disabled
and  it  is  creating  a  safety  hazard  for  other
motorists. When  you  must  leave  the  vehicle  to  seek
assistance, the Hazard Warning flashers will
continue to operate even though the ignition
is placed in the OFF position.
NOTE:
With  extended  use  the  Hazard  Warning
flashers may wear down your battery.
BULB REPLACEMENT  
Replacement Bulbs    
Interior Bulbs
Bulb Name Bulb Number
Automatic Transmission Indicator Lamp 658
Heater Control Lamps (2) 194
Rocker  Switch  Indicator  Lamp  (Rear  Window  Defogger,  and  Rear
Wash/Wipe) **
Soundbar Dome Lamp 912
** Bulbs only available from an authorized dealer.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 179   

183
(Continued)
Center High Mounted Stop Lamp (CHMSL) 
Please see an authorized dealer for service.
License Plate Lamps
1. Reach  under  the  vehicle  to  access  theback of the lamp.
2. Firmly  grasp  the  bulb  by  the  two  latch features  and  squeeze  them  together  to
unlock  the  bulb  from  the  back  of  the
lamp housing.
Rear Fog Lamp
NOTE:
We  advise  referring  to  an  authorized  dealer
for service.
1. Reach  under  the  vehicle  to  access  theback of the fog lamp.
2. Disconnect  the  wire  harness  connector from the fog lamp connector receptacle.
3. Rotate the socket a quarter turn counter -
clockwise,  then  remove  it  from  the
housing.
4. Pull the bulb straight out from the keyed opening in the housing and then connect
the replacement bulb and reassemble.
FUSES 
General Information
The  fuses  protect  electrical  systems  against
excessive current.
When  a  device  does  not  work,  you  must
check the fuse element inside the blade fuse
for a break/melt.
Also, please be aware that when using power
outlets for extended periods of time with the
engine  off  may  result  in  vehicle  battery
discharge.
 CAUTION!
Do  not  touch  the  new  bulb  with  your
fingers.  Oil  contamination  will  severely
shorten  bulb  life.  If  the  bulb  comes  in
contact  with  any  oily  surface,  clean  the
bulb with rubbing alcohol.
 WARNING!
When replacing a blown fuse, always use
an  appropriate  replacement  fuse  with
the same amp rating as the original fuse.
Never replace a fuse with another fuse of
higher amp rating. Never replace a blown
fuse with metal wires or any other mate-
rial.  Failure  to  use  proper  fuses  may
result in serious personal injury, fire and/
or property damage.
Before  replacing  a  fuse,  make sure  that
the  ignition  is  off  and  that  all  the  other
services  are  switched  off  and/or  disen -
gaged.
If the replaced fuse blows again, contact
an authorized dealer.
If  a  general  protection  fuse  for  safety
systems  (air  bag  system,  braking
system),  power  unit  systems  (engine
system,  gearbox  system)  or  steering
system  blows,  contact  an  authorized
dealer.
 CAUTION!
If  it  is  necessary  to  wash  the  engine
compartment,  take  care  not  to  directly  hit
the  fuse  box,  and  the  windshield  wiper
motors with water.
 WARNING! (Continued)
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319
INDEX
A
Accessories ....................................... 258Mopar ........................................... 258
Active Speed Limiter .......................... 156
Adaptive Cruise Control (ACC) 
(Cruise Control) ................................. 158
Adding Fuel ...................................... 169
Additives, Fuel .................................. 249
Air Bag Air Bag Operation ........................... 107Air Bag Warning Light ..................... 105
Disable, Passenger Air Bag.............. 107
Enhanced Accident Response ... 115 , 209
Event Data Recorder (EDR) ............. 209
Front Air Bag ................................. 106
If Deployment Occurs ..................... 114
Knee Impact Bolsters ..................... 112
Maintaining Your Air Bag System ..... 116
Maintenance .................................. 116
Redundant Air Bag Warning Light .... 105
Transporting Pets ........................... 134
Air Bag Light ........................65 , 105 , 136
Air Conditioning................................... 44
Air Conditioning Filter .......................... 46
Air Conditioning System ....................... 44
Air Conditioning, Operating Tips ............ 45 Air Pressure
Tires ............................................. 233
Alarm Arm The System .............................. 15
Disarm The System .......................... 15
Security Alarm ............................15 , 68
Alarm (Security Alarm) ......................... 16
Alterations/Modifications Vehicle ............................................. 2
Android Auto...................... 266 , 271 , 302
Apps ............................................. 274
Communication ............................. 273
Maps ............................................ 272
Music ........................................... 273
Antifreeze (Engine Coolant) ................ 253
Anti-Lock Brake System (ABS) .............. 78
Anti-Lock Warning Light ....................... 68
Apple CarPlay .................... 267 , 274 , 303
Apps ............................................. 276
Maps ............................................ 276
Messages ...................................... 275
Music ........................................... 275
Phone ........................................... 275
Assist, Hill Start .................................. 85
Audio Systems (Radio) ................260 , 262
Auto Down Power Windows ................... 46
Automatic Headlights .......................... 33 Automatic High Beams .........................33
Automatic Temperature Control (ATC) ....44
Automatic Transmission......................145
Fluid Level Check ................... 231 , 232
Fluid Type ............................. 231 , 257
Special Additives ............................231
Auxiliary Electrical Outlet (Power Outlet)... 56
Auxiliary Power Outlet ..........................56
Auxiliary Switches ................................58
Axle Fluid..........................................257
Axle Lock ..........................................151
B
Battery ........................................ 66 , 225
Charging System Light ......................66
Belts, Seat ........................................136
Blind Spot Monitoring ..........................87
Brake Assist System .............................79
Brake Control System ...........................79
Brake Fluid ............................... 230 , 257
Brake System ....................................230 Fluid Check ...................................230
Master Cylinder ..............................230
Warning Light...................................65
Brake/Transmission Interlock...............144
Bulb Replacement ..................... 179 , 181
Bulbs, Light .............................. 137 , 179
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 319