2021 JEEP WRANGLER UNLIMITED spare tire

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.
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239
Wheel And Wheel Trim Care
All wheels and wheel trim, especially
aluminum and chrome plated wheels, should
be cleaned regularly using mild (neutral Ph)
soap and water to maintain their luster and
to prevent corrosion. Wash wheels with the
same soap solution recommended for the
body of the vehicle and remember to always
wash when the surfaces are not hot to the
touch.Your wheels are susceptible to deterioration
caused by salt, sodium chloride, magnesium
chloride, calcium chloride, etc., and other
road chemicals used to melt ice or control
dust on dirt roads. Use a soft cloth or sponge
and mild soap to wipe away promptly. Do not
use harsh chemicals or a stiff brush. They
can damage the wheel’s protective coating
that helps keep them from corroding and
tarnishing.
When cleaning extremely dirty wheels
including excessive brake dust, care must be
taken in the selection of tire and wheel
cleaning chemicals and equipment to
prevent damage to the wheels. Select a
non-abrasive, non-acidic cleaner for
aluminum or chrome wheels.
NOTE:
If you intend parking or storing your vehicle
for an extended period after cleaning the
wheels with wheel cleaner, drive your vehicle
and apply the brakes to remove the water
droplets from the brake components. This
activity will remove the red rust on the brake
rotors and prevent vehicle vibration when
braking.
WARNING!
Limited use spares are for emergency use
only. Installation of this limited use spare
tire affects vehicle handling. With this tire,
do not drive more than the speed listed on
the limited use spare wheel. Keep inflated
to the cold tire inflation pressures listed on
your Tire and Loading Information Placard
located on the driver’s side B-Pillar or the
rear edge of the driver’s side door. Replace
(or repair) the original equipment tire at
the first opportunity and reinstall it on your
vehicle. Failure to do so could result in
loss of vehicle control.
CAUTION!

Avoid products or automatic car washes that
use acidic solutions or strong alkaline
additives or harsh brushes. Many aftermarket
wheel cleaners and automatic car washes
may damage the wheel's protective finish.
Such damage is not covered by the New
Vehicle Limited Warranty. Only car wash soap
is recommended.

CAUTION!
Do not use scouring pads, steel wool, a
bristle brush, metal polishes or oven
cleaner. These products may damage the
wheel's protective finish. Such damage is
not covered by the New Vehicle Limited
Warranty. Only car wash soap is
recommended.
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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.
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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
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259
Off Road & Performance:
• Bumpers• Performance Brakes• Rock Rails
• Winches • Axle Locker Kit• Grille Guard
• Performance Axles • Differential Covers• Spare Tire Carrier
• Performance Hoods • LED Off Road Lights• Fender Flares
• Lift Kits • Skid Plates• Tailgate Reinforcement
Exterior:
• Wheels • Hood Lock• Front End Cover
• Spare Tire Covers • Wheel Locks• Parking Cover
• Fuel Doors • Trailer Hitches• LED Lights
• Air Deflectors • Body Graphics• Valve Stem Caps
• Locking Gas Cap • Hood Graphics• Ski And Snowboard Carriers
• Tubular Steps • Satin Black Grille• Roof Basket
• Molded Side Steps • Camping Tent• Roof Basket Net
• Windshield Tie Down Strap • Hood Cover• Towing Kit
• Splash Guards
Interior:
• Hard Top Headliner • Door Sill Guards• Trailrail Cargo Rail
• Premium Carpet Floor Mats • Storage Bags• Trailrail Vertical Cargo Divider
• All Weather Floor Mats • Cargo Tub• Tailgate Table
• Radio Screen Protector • Cargo Tray• Dog Kennel
• Grab Handles • Cargo Net• Dog Partition
Electronics:
• Electronic Vehicle Tracking System
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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
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324
INDEX
Recreational Towing ........................... 176Shifting Into Transfer CaseNeutral (N)................................. 177
Shifting Out Of Transfer Case Neutral (N)................................. 178
Release, Hood ..................................... 55
Reminder, Seat Belt............................. 99
Remote Control Starting System ............................... 14
Remote Keyless Entry Arm The Alarm................................. 15
Disarm The Alarm ............................ 15
Remote Sound System (Radio)
Control ............................................. 279
Remote Starting System ....................... 14
Removable Doors ........................... 21 , 23
Front............................................... 21
Rear................................................ 23
Removable Top .........................47 , 51 , 53
Removal ............................................. 51
Removing............................................ 53
Replacement Bulbs ............................ 179
Replacement Keys ............................... 12
Replacement Tires ............................. 236
Restraints, Head .................................. 28
Roll Over Warning .................................. 2
Roof Type Carrier ................................. 58
Rotation, Tires ................................... 241 S
Safety Checks Inside Vehicle .............. 136
Safety Checks Outside Vehicle ............ 137
Safety Tips ....................................... 135
Safety, Exhaust Gas ........................... 135
Schedule, Maintenance...............210
, 216
Seat Belt Reminder ............................. 67
Seat Belts ....................................98 , 136
Adjustable Shoulder Belt ................ 103
Adjustable Upper Shoulder Anchorage ................................. 103
Adjustable Upper Shoulder Belt Anchorage ................................. 103
Energy Management Feature ........... 104
Front Seat ........................ 98 , 100 , 102
Inspection ..................................... 136
Lap/Shoulder Belt Operation ........... 102
Lap/Shoulder Belt Untwisting .......... 103
Lap/Shoulder Belts......................... 100
Operating Instructions .................... 102 Pregnant Women ........................... 104
Pretensioners................................. 104
Rear Seat ...................................... 100
Reminder ........................................ 99
Seat Belt Pretensioner .................... 104Seat Belt Reminder ......... 67 , 74 , 75 , 99
Untwisting Procedure ..................... 103
Seat Belts Maintenance ..................... 245 Seats ..................................................24
Adjustment ......................................24
Fold And Tumble Rear ......................27
Rear Folding ....................................24
Tilting .............................................24
Security Alarm ............................... 15 , 68
Arm The System ...............................15
Disarm The System ...........................15
Selection Of Coolant (Antifreeze) .........254
Sentry Key Replacement .......................12
Service Assistance .............................304
Shifting .............................................143 Automatic Transmission .......... 143 , 145
Transfer Case, Shifting Into Transfer Case Neutral (N).............177
Transfer Case, Shifting Out Of Transfer Case Neutral (N).............178
Shoulder Belts ...................................100
Signals, Turn ................74 , 137 , 181 , 182
Siri ...................................................300
Snow Chains (Tire Chains) ..................240
Snow Tires ........................................237
Soft Top ........................................ 47 , 53
Spare Tires ........................ 193 , 237 , 238
Spark Plugs .......................................254
Specifications Fuel (Gasoline) ...............................254
Oil ................................................254
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325
Speed ControlAccel/Decel (ACC Only) ................... 159
Cancel .......................................... 158
Resume......................................... 158
Speed Control (Cruise Control) .... 157 , 158
Speed Limiter, Active ......................... 156
Starting ............................................ 138 Button ............................................ 12
Remote ........................................... 14
Starting And Operating ....................... 138
Starting Procedures ........................... 138
Steering .............................................. 31 Tilt Column ..................................... 31
Wheel, Heated ................................. 31
Wheel, Tilt....................................... 31
Steering Wheel Audio Controls ............ 279
Steering Wheel Mounted Sound System
Controls ............................................ 279
Stop/Start ......................................... 153
Storage, Vehicle .......................... 45 , 241
Storing Your Vehicle........................... 241
Stuck, Freeing ................................... 206
Sun Roof ............................................ 53
Sway Bar Disconnect Electronic ...................................... 152
Sway Control, Trailer ............................ 86
Swing Gate, Rear ................................. 55
System, Remote Starting ...................... 14 T
Telescoping Steering Column................ 31
Temperature Control, Automatic (ATC) .. 44
Text Messages ................................... 292
Tilt Steering Column ............................ 31
Tip Start ........................................... 141
Tires ......................... 137
, 232 , 237 , 238
Aging (Life Of Tires) ....................... 235
Air Pressure................................... 232
Chains .......................................... 240
Changing................................192 , 232
Compact Spare .............................. 238
General Information ........ 232 , 237 , 238
High Speed ................................... 234
Inflation Pressure........................... 233
Jacking ......................................... 232
Life Of Tires .................................. 235
Pressure Monitoring System (TPMS) .......................70 , 92
Radial........................................... 234
Replacement ................................. 236
Rotation ........................................ 241
Safety ........................................... 232
Snow Tires .................................... 237
Spare Tires..................... 193 , 237 , 238
Spinning ....................................... 235
Tread Wear Indicators .................... 235 Wheel Nut Torque .......................... 247 To Open Hood......................................55
Top
Dual .......................................... 47 , 53
Freedom ..........................................51
Hard................................................51
Power Sliding ...................................53
Removable ........................... 47 , 51 , 53
Soft ........................................... 47 , 53
Towing ...................................... 175 , 207
Disabled Vehicle .............................207
Recreational...................................176
Weight...........................................175
Towing Behind A Motorhome ...............176
Towing Eyes ......................................208
Trac-Lok Rear Axle .......................................151
Traction Control ...................................87
Traction Control Switch ........................87
Trailer Sway Control (TSC) ....................86
Trailer Towing ....................................175 Trailer And Tongue Weight...............175
Trailer Towing Guide ..........................175
Trailer Weight ....................................175
Transfer Case Fluid .............................................257Four-Wheel-Drive-Operation ..... 146 , 148
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