
SERVICING AND MAINTENANCE
234
Tire Pressures For High Speed Operation 
The  manufacturer  advocates  driving  at  safe
speeds  and  within  posted  speed  limits.
Where  speed  limits  or  conditions  are  such
that the vehicle can be driven at high speeds,
maintaining correct tire inflation pressure is
very  important.  Increased  tire  pressure  and
reduced vehicle loading may be required for
high-speed  vehicle  operation.  Refer  to  an
authorized  tire  dealer  or  original  equipment
vehicle  dealer  for  recommended  safe  oper-
ating  speeds,  loading  and  cold  tire  inflation
pressures.
Radial Ply Tires 
Tire Repair
If  your  tire  becomes  damaged,  it  may  be
repaired if it meets the following criteria:
The tire has not been driven on when flat.
The  damage  is  only  on  the  tread  section  of
your tire (sidewall damage is not repairable).
The puncture is no greater than a ¼ of an
inch (6 mm).
Consult  an  authorized  tire  dealer  for  tire
repairs and additional information.
Damaged  Run  Flat  tires,  or  Run  Flat  tires
that  have  experienced  a  loss  of  pressure
should be replaced immediately with another
Run  Flat  tire  of  identical  size  and  service
description (Load Index and Speed Symbol).
Replace the tire pressure sensor as well as it
is not designed to be reused.
Run Flat Tires — If Equipped
Run  Flat  tires  allow  you  the  capability  to
drive 50 miles (80 km) at 50 mph (80 km/h)
after  a  rapid  loss  of  inflation  pressure.  This
rapid  loss  of  inflation  is  referred  to  as  the
Run  Flat  mode.  A  Run  Flat  mode  occurs
when the tire inflation pressure is of/or below
14 psi (96 kPa). Once a Run Flat tire reaches
the run flat mode it has limited driving capa -
bilities  and  needs  to  be  replaced  immedi -
ately. A Run Flat tire is not repairable. When
a  run  flat  tire  is  changed  after  driving  with
underinflated  tire  condition,  please  replace
the  TPM  sensor  as  it  is  not  designed  to  be
reused  when  driven  under  run  flat mode  14
psi (96 kPa) condition.
NOTE:
TPM  Sensor  must  be  replaced  after  driving
the vehicle on a flat tire condition.
It  is  not  recommended  driving  a  vehicle
loaded  at  full  capacity  or  to  tow  a  trailer
while a tire is in the run flat mode.
See  the  tire  pressure  monitoring  section  for
more information.
 WARNING!
High speed driving with your vehicle under
maximum  load  is  dangerous.  The  added
strain  on  your  tires  could  cause  them  to
fail. You could have a serious collision. Do
not drive a vehicle loaded to the maximum
capacity  at  continuous  speeds  above
75 mph (120 km/h).
 WARNING!
Combining radial ply tires with other types
of  tires  on  your  vehicle  will  cause  your
vehicle  to  handle  poorly.  The  instability
could  cause  a  collision.  Always  use  radial
ply  tires  in  sets  of  four.  Never  combine
them with other types of tires.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 234   

SERVICING AND MAINTENANCE
236
(Continued)
NOTE:
Wheel  Valve  Stem must be replaced  as  well
when  installing  new  tires  due  to  wear  and
tear in existing tires.
Keep  dismounted  tires  in  a  cool,  dry  place
with  as  little  exposure  to  light  as  possible.
Protect  tires  from  contact  with  oil,  grease,
and gasoline.
Replacement Tires 
The  tires  on  your  new  vehicle  provide  a
balance of many characteristics. They should
be  inspected  regularly  for  wear  and  correct
cold  tire  inflation  pressures.  The  manufac-
turer strongly recommends that you use tires
equivalent  to  the  originals  in  size,  quality
and  performance  when  replacement  is
needed.  Refer  to  the  paragraph  on  “Tread
Wear Indicators” in this section. Refer to the
Tire and  Loading Information placard  or  the
Vehicle Certification Label for the size desig -
nation  of  your  tire.  The  Load  Index  and
Speed  Symbol for  your tire  will  be found on
the original equipment tire sidewall.
It  is  recommended  to  replace  the  two  front
tires or two rear tires as a pair. Replacing just
one  tire  can  seriously  affect  your  vehicle’s handling.  If you  ever replace  a wheel, make
sure  that  the  wheel’s  specifications  match
those of the original wheels.
It is recommended you contact an authorized
tire dealer or original equipment dealer with
any questions you may have on tire specifica
-
tions or capability. Failure to use equivalent
replacement  tires  may  adversely  affect  the
safety, handling, and ride of your vehicle. WARNING!
Do not use a tire, wheel size, load rating,
or speed rating other than that specified
for  your  vehicle.  Some  combinations  of
unapproved tires and wheels may change
suspension dimensions and performance
characteristics,  resulting  in  changes  to
steering,  handling,  and  braking  of  your
vehicle.  This  can  cause  unpredictable
handling  and  stress  to  steering  and
suspension components.  You could lose
control  and  have  a  collision  resulting  in
serious injury or death. Use only the tire
and  wheel  sizes  with  load  ratings
approved for your vehicle.
Never use a tire with a smaller load index
or  capacity,  other  than  what  was  origi -
nally  equipped  on your  vehicle.  Using  a
tire with a smaller load index could result
in tire overloading and failure. You could
lose control and have a collision.
Failure  to  equip  your  vehicle  with  tires
having  adequate  speed  capability  can
result  in  sudden  tire  failure  and  loss  of
vehicle control.
 CAUTION!
Replacing  original  tires  with  tires  of  a
different  size  may  result  in  false
speedometer and odometer readings.
 WARNING! (Continued)
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 236   

237
Tire Types
All Season Tires — If Equipped
All  Season  tires  provide  traction  for  all
seasons  (Spring,  Summer,  Autumn,  and
Winter).  Traction  levels  may  vary  between
different all season tires. All season tires can
be  identified  by  the  M+S,  M&S,  M/S  or  MS
designation  on  the  tire  sidewall.  Use  all
season tires only in sets of four; failure to do
so  may  adversely  affect  the  safety  and
handling of your vehicle.
Summer Or Three Season Tires — If Equipped
Summer  tires  provide  traction  in  both  wet
and  dry  conditions,  and  are  not  intended  to
be driven in snow or on ice. If your vehicle is
equipped with Summer tires, be aware these
tires  are  not  designed  for  Winter  or  cold
driving  conditions.  Install  Winter  tires  on
your vehicle when ambient temperatures are
less than 40°F (5°C) or if roads are  covered
with  ice  or  snow.  For  more  information,
contact an authorized dealer.
Summer tires do not contain the all season desig-
nation  or  mountain/snowflake  symbol  on  the  tire
sidewall.  Use  Summer  tires  only  in  sets  of  four;
failure  to  do  so  may  adversely  affect  the  safety
and handling of your vehicle.
Snow Tires  
Some areas of the country require the use of
snow tires during the Winter. Snow tires can
be  identified  by  a  “mountain/snowflake”
symbol on the tire sidewall.
If  you  need  snow  tires,  select  tires
equivalent  in  size  and  type  to  the
original equipment tires. Use snow
tires  only  in  sets  of  four;  failure  to
do  so  may  adversely  affect  the  safety  and
handling of your vehicle.
Snow tires generally have lower speed ratings
than what was originally equipped with your
vehicle  and  should  not  be  operated  at
sustained  speeds  over  75 mph  (120 km/h).
For  speeds  above  75 mph  (120 km/h)  refer
to  original  equipment  or  an  authorized  tire
dealer  for  recommended  safe  operating
speeds,  loading  and  cold tire inflation  pres -
sures. While studded tires improve performance on
ice, skid and traction capability on wet or dry
surfaces  may  be  poorer  than  that  of
non-studded  tires.  Some  states  prohibit
studded tires; therefore, local laws should be
checked before using these tire types.
Spare Tires — If Equipped   
NOTE:
For  vehicles  equipped  with  Tire  Service  Kit
instead  of  a  spare  tire,  please  refer  to  “Tire
Service  Kit”  in  “In  Case  Of  Emergency”  in
the Owner’s Manual for further information.
Refer  to  the  “Towing  Requirements  -  Tires”
in  “Starting  And  Operating”  in  the  Owner’s
Manual  for  restrictions  when  towing  with  a
spare  tire  designated  for  temporary  emer
-
gency use.
 WARNING!
Do  not  use  Summer  tires  in  snow/ice
conditions.  You  could  lose vehicle control,
resulting  in severe  injury  or  death.  Driving
too  fast  for  conditions  also  creates  the
possibility of loss of vehicle control.
 CAUTION!
Because  of the reduced ground clearance,
do  not  take  your  vehicle  through  an
automatic  car  wash  with  a  compact  or
limited  use  temporary  spare  installed.
Damage to the vehicle may result.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 237   

SERVICING AND MAINTENANCE
238
Spare Tire Matching Original Equipped Tire 
And Wheel — If Equipped  
Your  vehicle  may  be  equipped  with  a  spare
tire  and  wheel  equivalent  in  look  and  func-
tion to the original equipment tire and wheel
found on the front or rear axle of your vehicle.
This spare tire  may be  used in  the tire rota -
tion for your vehicle. If your vehicle has this
option,  refer  to  an  authorized  tire  dealer for
the recommended tire rotation pattern.
Compact Spare Tire — If Equipped  
The  compact  spare  is  for  temporary  emer -
gency  use  only.  You  can  identify  if  your
vehicle is equipped with a compact spare by
looking  at  the  spare  tire  description  on  the
Tire  and  Loading  Information  Placard
located  on  the  driver’s  side  door  opening  or
on  the  sidewall  of  the  tire.  Compact  spare
tire descriptions begin with the letter “T” or
“S”  preceding  the  size  designation.
Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the orig -
inal  equipment  tire  should  be  repaired  (or
replaced)  and  reinstalled  on  your  vehicle  at
the first opportunity. Do  not  install  a  wheel  cover  or  attempt  to
mount  a  conventional  tire  on  the  compact
spare  wheel,  since  the  wheel  is  designed
specifically  for  the  compact  spare  tire.  Do
not install more than one compact spare tire
and wheel on the vehicle at any given time.
Full Size Spare — If Equipped  
The  full  size  spare  is  for  temporary  emer
-
gency  use  only.  This  tire  may  look  like  the
originally  equipped  tire  on  the  front  or  rear
axle of your vehicle, but it is not. This spare
tire  may  have  limited  tread  life.  When  the
tread is worn to the tread wear indicators, the
temporary use full size spare tire needs to be
replaced.  Since  it  is  not  the  same  as  your
original  equipment  tire,  replace  (or  repair)
the  original  equipment  tire  and  reinstall  on
the vehicle at the first opportunity.
Limited Use Spare — If Equipped 
The  limited  use  spare  tire  is  for  temporary
emergency use only. This tire is identified by
a  label  located  on  the  limited  use  spare
wheel. This label contains the driving limita -
tions  for  this  spare.  This  tire  may  look  like
the original equipped tire on the front or rear
axle of your vehicle, but it is not. Installation
of  this  limited  use  spare  tire  affects  vehicle
handling.  Since  it  is  not  the  same  as  your
original  equipment  tire,  replace  (or  repair)
the  original  equipment  tire  and  reinstall  on
the vehicle at the first opportunity.
 WARNING!
Compact  and  collapsible  spares  are  for
temporary emergency use  only.  With  these
spares,  do  not  drive  more  than  50 mph
(80 km/h).  Temporary  use  spares  have
limited  tread  life.  When  the  tread  is  worn
to the tread wear indicators, the temporary
use  spare  tire  needs  to  be  replaced.  Be
sure to follow the warnings, which apply to
your spare. Failure to do so could result in
spare  tire  failure  and  loss  of  vehicle
control.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 238   

SERVICING AND MAINTENANCE
240
(Continued)
Dark  Vapor  Chrome,  Black  Satin  Chrome,  or
Low Gloss Clear Coat WheelsTire Chains And Traction Devices 
Use  of  traction  devices  require  sufficient 
tire-to-body  clearance.  Follow  these  recom-
mendations to guard against damage.
the  tire,  as  recommended  by  the  traction
device manufacturer.
Install on rear tires only. 
All  OE  equipped  tire  and  wheel  sizes  are
chainable  with  an  Autosock  traction
device.  See Autosock.com   for  the  recom -
mended part or model number for your OE
equipped tire size.
permitted  with  the  use  of  245/75R17
tires on size 17 x 7.5 ET44.45 wheels.
 CAUTION!
If  your  vehicle  is  equipped  with  these
specialty  wheels,  DO  NOT  USE  wheel
cleaners,  abrasives,  or  polishing
compounds.  They  will  permanently
damage this finish and such damage is not
covered  by  the  New  Vehicle  Limited
Warranty.  HAND  WASH  ONLY  USING
MILD  SOAP  AND  WATER  WITH  A  SOFT
CLOTH. Used on a regular basis; this is all
that is required to maintain this finish.
 WARNING!
Using  tires  of  different  size  and  type
(M+S,  Snow)  between  front  and  rear  axles
can  cause  unpredictable  handling.  You
could lose control and have a collision.
 CAUTION!
To  avoid  damage  to  your  vehicle  or  tires,
observe the following precautions:
Because  of  restricted  traction  device
clearance  between  tires  and  other
suspension  components,  it  is  important
that only traction devices in good condi -
tion are used. Broken devices can cause
serious damage. Stop the vehicle imme-
diately  if  noise  occurs  that  could  indi -
cate  device  breakage.  Remove  the
damaged  parts  of  the  device  before
further use.
Install  device  as  tightly  as  possible  and
then retighten after driving about ½ mile
(0.8 km).  Autosock  traction  devices  do
not require retightening.
Do not exceed 30 mph (48 km/h).
Drive  cautiously  and  avoid  severe  turns
and  large  bumps,  especially  with  a
loaded vehicle.
Do  not  drive  for  a  prolonged  period  on
dry pavement.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 240   
The use of S-class snow chains is 
Traction device must be of proper size for 

241
Tire Rotation Recommendations 
The tires on the front and rear of your vehicle
operate  at  different  loads  and  perform
different  steering,  handling,  and  braking
functions.  For  these  reasons,  they  wear  at
unequal rates.
These effects can be reduced by timely rota-
tion  of  tires.  The  benefits  of  rotation  are
especially  worthwhile  with  aggressive  tread
designs  such  as  those  on  On/Off  Road  type
tires. Rotation will increase tread life, help to
maintain mud, snow, and wet traction levels,
and contribute to a smooth, quiet ride. Refer  to  the  “Maintenance  Plan”  for  the
proper  maintenance  intervals.  The  reasons
for  any  rapid  or  unusual  wear  should  be
corrected prior to rotation being performed.
The  suggested  rotation method is the “rear
-
ward-cross” shown in the following diagram.
Tire Rotation (Rearward Cross)
STORING THE VEHICLE   
Observe the traction device manufacturer’s
instructions on  the  method of installation,
operating  speed,  and  conditions  for  use.
Always use the suggested operating speed
of  the  device  manufacturer’s  if  it  is  less
than 30 mph (48 km/h).
Do not use traction devices on a compact
spare tire.
 CAUTION! (Continued)
 CAUTION!
Proper  operation  of  four-wheel  drive
vehicles  depends  on  tires  of  equal  size,
type  and  circumference  on  each  wheel.
Any  difference  in  tire  size  can  cause
damage  to  the  transfer  case.  Tire  rotation
schedule  should  be  followed  to  balance
tire wear.
 WARNING!
Take  care  to  avoid  the  radiator  cooling
fan  whenever  the  hood  is  raised.  It  can
start  anytime  the  ignition  switch  is  ON.
You can be injured by moving fan blades.
Remove any metal jewelry such as rings,
watch  bands  and  bracelets  that  could
make  an  inadvertent  electrical  contact.
You could be seriously injured.
Vehicles  with  the  Stop/Start  system  will
be equipped with two batteries. Both the
main  and  the  supplemental  batteries
must  be  disconnected  to  completely
de-energize  the  12  Volt  electrical
system.
Serious injury or death could result if you
do  not  disconnect  both  batteries.  To
learn  how  to  properly  disconnect,  see
your authorized dealer.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 241   

247
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION 
NUMBER 
The  Vehicle  Identification  Number  (VIN)  is
found  on  the  left  front  corner  of  the  A  pillar,
visible  from outside of  the vehicle through the
windshield.  This  number  also  appears  under-
body, on the right side of the frame rail near the
center of the vehicle, as well as on the Automo-
bile  Information  Disclosure  Label  affixed  to  a
window  on  your  vehicle.  Save  this  label  for  a
convenient record of your vehicle identification
number and optional equipment.
The VIN is also stamped on either right or left
hand side of the engine block.
Vehicle Identification Number
NOTE:
It is illegal to remove or alter the VIN plate.
WHEEL AND TIRE TORQUE 
SPECIFICATIONS  
Proper  lug  nut/bolt  torque  is  very  important
to ensure that the wheel is properly mounted
to  the  vehicle.  Any  time  a  wheel  has  been
removed  and  reinstalled  on  the  vehicle,  the
lug  nuts/bolts  should  be  torqued  using  a
properly  calibrated  torque  wrench  using  a
high quality six sided (hex) deep wall socket.
Torque Specifications
**Use  only  authorized  dealer  recommended
lug nuts/bolts and clean or remove any dirt or
oil before tightening.
Inspect the  wheel  mounting  surface prior to
mounting  the  tire  and  remove  any  corrosion
or loose particles. Spare Tire Torque Specifications
**Use  only  authorized  dealer  recommended
lug nuts/bolts and clean or remove any dirt or
oil before tightening.
Spare  tire torque  is for the spare tire carrier
located on the tailgate.
Lug Nut/Bolt 
Torque
**Lug Nut/
Bolt SizeLug Nut/Bolt 
Socket Size
130 Ft-Lbs 
(176 N·m) M14 x 1.50 22 mm
Lug Nut/Bolt 
Torque**Lug Nut/
Bolt SizeLug Nut/Bolt 
Socket Size
59 Ft-Lbs 
(80 N·m) M14 x 1.50 22 mm
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 247   

TECHNICAL SPECIFICATIONS
248
Tighten  the  lug  nuts/bolts  in  a  star  pattern
until each nut/bolt has been tightened twice.
Ensure  that  the  socket  is  fully  engaged  on
the lug nut/bolt (do not insert it halfway).Torque Patterns
After  25 miles  (40 km),  check  the  lug  nut/
bolt  torque  to  be  sure  that  all  the  lug  nuts/
bolts are properly seated against the wheel.WHEELS
Refer to the tire placard label located on the
door sill of the vehicle or to the Registration
Document  for  the  tire  size  and  pressure.
Refer  to  “Tires”  in  “Servicing  And  Mainte -
nance” chapter for further information.
WEIGHTS
For  further  information  refer  to  “Vehicle
Loading”  in  the  “Starting  And  Operating”
chapter.
FUEL REQUIREMENTS — 
GASOLINE ENGINE   
2.0L Engine
This engine is designed to meet all emission
regulations,  and  provide  satisfactory  fuel
economy  and  performance  when  using
high-quality unleaded gasoline with a recom -
mended RON of 95.
While  operating  on  gasoline  with  the
required  octane  number,  hearing  a  light
knocking  sound  from  the  engine  is  not  a
cause for concern. However, if the engine is
heard  making  a  heavy  knocking  sound,  see
your  dealer  immediately.  Use  of  gasoline
with  a  lower  than  recommended  octane
number  can  cause  engine  failure  and  may
void  or  not  be  covered  by  the  New  Vehicle
Limited Warranty.
Poor  quality  gasoline  can  cause  problems
such  as  hard  starting,  stalling,  and  hesita -
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
 WARNING!
To  avoid  the  risk  of  forcing  the  vehicle  off
the  jack,  do  not  tighten  the  lug  nuts/bolts
fully  until  the  vehicle  has  been  lowered.
Failure to follow this warning may result in
personal injury.
2020_JEEP_JL_WRANGLER_UG_RHD_UK.book  Page 248