
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   

45
The temperature can be displayed in U.S.
or  Metric  units  by  selecting  the  U.S./
Metric  customer-programmable  feature.
Refer  to  the  “Uconnect  Settings”  in
“Multimedia”  in  the  Owner’s  Manual  for
further information.
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  provide  proper  corrosion  protec -
tion  and  to  protect  against  engine  over -
heating.  OAT  coolant  (conforming  to
MS.90032) is recommended.
Winter Operation
To  ensure  the  best  possible  heater  and
defroster performance, make sure the engine
cooling  system  is  functioning  properly  and
the  proper  amount,  type,  and  concentration
of coolant is used. Use of the Air Recircula -
tion  mode  during  Winter  months  is  not
recommended, 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
adequate 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.
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.
 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  instruments,
or abrasive window cleaners on the inte-
rior surface of the window.
Keep all objects a safe distance from the
window.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 45   

115
As the air bags deflate, you may see some
smoke-like  particles.  The  particles  are  a
normal  by-product  of  the  process  that
generates  the  non-toxic  gas  used  for  air
bag inflation. These airborne particles may
irritate  the  skin,  eyes,  nose,  or  throat.  If
you  have  skin  or  eye  irritation,  rinse  the
area with cool water. For nose or throat irri-
tation,  move  to  fresh  air.  If  the  irritation
continues, see your  doctor. If these parti -
cles  settle  on  your  clothing,  follow  the
garment  manufacturer’s  instructions  for
cleaning.
Do  not  drive  your  vehicle  after  the  air  bags
have deployed. If you are involved in another
collision, the air bags will not be in place to
protect you. NOTE:
Air  bag  covers  may  not  be  obvious  in  the
interior trim, but they will open during air
bag deployment.
After  any  collision,  the  vehicle  should  be
taken to an authorized dealer immediately.
Enhanced Accident Response System 
In the event of an impact, if the communica
-
tion  network  remains  intact,  and  the  power
remains  intact,  depending  on  the  nature  of
the event, the Occupant Restraint Controller
(ORC)  will  determine  whether  to  have  the
Enhanced  Accident  Response  System
perform the following functions:
Cut off fuel to the engine (If Equipped)
Cut off battery power to the electric motor
(If Equipped)
Flash  hazard  lights as  long as  the  battery
has power
Turn  on  the  interior  lights,  which  remain
on as long as the battery has power or for
15 minutes  from  the  intervention  of  the
Enhanced Accident Response System.
Unlock the power door locks. Your vehicle may also be designed to perform
any  of  these  other  functions  in  response  to
the Enhanced Accident Response System:
Turn  off  the  Fuel  Filter  Heater,  Turn  off
the  HVAC  Blower  Motor,  Close  the  HVAC
Circulation Door
Cut off battery power to the:
Engine
Electric Motor (if equipped)
Electric power steering
Brake booster
Electric park brake
Automatic transmission gear selector
Horn
Front wiper
Headlamp washer pump
 WARNING!
Deployed  air  bags  and  seat  belt
pretensioners  cannot  protect  you  in
another  collision.  Have  the  air  bags,  seat
belt  pretensioners,  and  the  seat  belt
retractor  assemblies  replaced  by  an
authorized  dealer  immediately.  Also,  have
the  Occupant  Restraint  Controller  System
serviced as well.
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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   

187
F38   20 Amp Blue
–Engine Control Module ECM
(*)
F39 – –Spare
F40 –15 Amp Blue DriveTrain  Control  Module  (DTCM)/Axle  Lock  (AXLE  LOC)
FT_RR
(*)
F41 –15 Amp Blue Instrument Cluster (IC)/Security GateWay (SGW) WAKE UP
(*)
F42 –10 Amp Red Power  Control  Relay  Control  Feed  (Electric  Stop/Start)/Spare
(Belt Starter Generator) -- If Equipped
(*)
F43 –20 Amp Yellow PWR OUTLET (CARGO) BATT
(*)
F44 –10 Amp Red InfraRed Camera (IRCAM) HEATERS
(*)
F45 –20 Amp Yellow PWR OUTLET (CARGO) IGN*
(*)
F46 –10 Amp Red AUTO HDLP LVL MOD/LVL MTR/HDLP SW
(*)
F47 – –Spare
F48 – –Spare
F49 –10 Amp Red Occupant Restraint Controller ORC
(*)
F50 –10 Amp Red HD ACC — If Equipped
(*)
CavityCartridge Fuse Micro Fuse Description
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 187   

IN CASE OF EMERGENCY
202
NOTE:
Never  use a  fast battery  charger to start  the
engine, as this  could damage  the electronic
systems of your vehicle, particularly the igni-
tion and engine fuel supply control units.
1. Apply  the  parking  brake,  shift  the  auto -
matic  transmission  into  PARK  and  turn
the ignition OFF.
2. Turn off the heater, radio, and all unnec -
essary electrical accessories.
3. If using another vehicle to jump start the battery,  park  the  vehicle  within  the
jumper  cable’s  reach,  apply  the  parking
brake and make sure the ignition is OFF.Jump Starting Procedure
NOTE:
Make  sure  at  all  times  that  unused  ends  of
jumper cables are not contacting each other
or either vehicle while making connections. Connecting The Jumper Cables
Jumper Cable Connections
1. Connect  the  positive  (+)  end  of  the
jumper  cable  to  the  remote  positive  (+)
post of the discharged vehicle.
2. Connect the opposite end of the positive (+) jumper  cable to the  positive  (+) post
of the booster battery.
3. Connect  the  negative  end  (-)  of  the
jumper  cable  to  the  negative  (-)  post  of
the booster battery.
 WARNING!
Do  not  allow  vehicles  to  touch  each  other
as  this  could  establish  a  ground
connection  and  personal  injury  could
result.
 WARNING!
Failure  to  follow  this  jump  starting
procedure could result in personal injury or
property damage due to battery explosion.
 CAUTION!
Failure  to  follow  these  procedures  could
result in damage to the charging system of
the  booster  vehicle  or  the  discharged
vehicle.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 202   

IN CASE OF EMERGENCY
204
IF YOUR ENGINE 
OVERHEATS 
In  any  of  the  following  situations,  you  can
reduce  the  potential  for  overheating  by
taking the appropriate action.
On the highways — slow down.
In city traffic — while stopped, shift trans-
mission  into  NEUTRAL  (N),  but  do  not
increase engine idle speed.NOTE:
There  are  steps  that  you  can  take  to  slow
down an impending overheat condition: 
If  your Air  Conditioner (A/C)  is on, turn  it
off.  The  A/C  system  adds  heat  to  the
engine cooling system and turning the A/C
off can help remove this heat.
You can also turn the temperature control
to  maximum  heat,  the  mode  control  to
floor  and  the  blower  control  to  high.  This
allows the  heater  core to act  as  a  supple-
ment to the radiator and aids in removing
heat from the engine cooling system.
MANUAL PARK RELEASE 
 CAUTION!
Driving  with  a  hot  cooling  system  could
damage  your  vehicle.  If  the  temperature
gauge  reads  HOT  (H),  pull  over  and  stop
the  vehicle.  Idle  the  vehicle  with  the  air
conditioner  turned  off  until  the  pointer
drops  back  into  the  normal  range.  If  the
pointer  remains on HOT  (H), and you hear
continuous  chimes,  turn  the  engine  off
immediately and call for service.
 WARNING!
You  or  others  can  be  badly  burned  by  hot
engine  coolant  (antifreeze)  or  steam  from
your  radiator.  If  you  see  or  hear  steam
coming  from  under  the  hood,  do  not  open
the hood until the radiator has had time to
cool.  Never  try  to  open  a  cooling  system
pressure  cap  when  the  radiator  or  coolant
bottle is hot.
 WARNING!
Always  secure  your  vehicle  by  fully
applying  the  parking  brake  before
activating  the  Manual  Park  Release.  In
addition,  you  should  be  seated  in  the
driver’s  seat  with  your  foot  firmly  on  the
brake  pedal  when  activating  the  Manual
Park  Release.  Activating  the  Manual  Park
Release will allow your vehicle to roll away
if it is not secured by the parking brake, or
by  proper  connection  to  a  tow  vehicle.
Activating  the  Manual  Park  Release  on  an
unsecured  vehicle  could  lead  to  serious
injury  or  death  for  those  in  or  around  the
vehicle.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 204