2021 JEEP WRANGLER UNLIMITED engine

TECHNICAL SPECIFICATIONS
256
(Continued)
(Continued)
CAUTION!
Mixing of engine coolant (antifreeze)
other than specified Organic Additive
Technology (OAT) engine coolant (anti -
freeze), may result in engine damage
and may decrease corrosion protection.
Organic Additive Technology (OAT)
engine coolant is different and should
not be mixed with Hybrid Organic Addi -
tive Technology (HOAT) engine coolant
(antifreeze) or any “globally compatible”
coolant (antifreeze). If a non-OAT engine
coolant (antifreeze) is introduced into
the cooling system in an emergency, the
cooling system will need to be drained,
flushed, and refilled with fresh OAT
coolant (conforming to MS.90032), by
an authorized dealer as soon as possible.Do not use water alone or alcohol-based
engine coolant (antifreeze) products. Do
not use additional rust inhibitors or anti -
rust products, as they may not be
compatible with the radiator engine
coolant and may plug the radiator.
This vehicle has not been designed for
use with propylene glycol-based engine
coolant (antifreeze). Use of propylene
glycol-based engine coolant (antifreeze)
is not recommended.
The use of products with different spec-
ifications than those indicated above
could cause damage to the engine that is
not covered by the warranty.
CAUTION! (Continued)

Use AdBlue® only according to DIN 70 070
and ISO 22241-1. Other fluids may cause
damage to the system: also exhaust emis -
sions would no longer comply with the law.

The distribution companies are responsible
for the compliance of their product.
Observe the precautions of storage and
servicing, in order to preserve the initial
qualities. The manufacturer of the vehicle
does not recognize any guarantee in case
of malfunctions and damage caused to the
vehicle due to the use of AdBlue® not in
accordance with regulations.

CAUTION! (Continued)
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277
Apps — If Equipped
To access Apps, press the Uconnect Apps
button on the touchscreen to browse the list
of applications:
EcoDrive
MyCar
TuneIn
Deezer
Reuters
Twitter
Facebook Check-In
Apple CarPlay®
Android Auto™
TomTom® Live Services, and many more.
UCONNECT SETTINGS
The Uconnect system allows you to access
Customer Programmable feature settings
such as Language, Display, Units, Voice,
Clock, Camera, Safety & Driving Assistance,
Mirrors & Wipers, Lights, Doors & Locks,
Auto-On Comfort, AUX Switches, Engine Off
Options, Audio, Phone/Bluetooth®, Radio
Setup, Restore Settings, and System Infor-
mation through buttons on the touchscreen.
Push the SETTINGS button (Uconnect 3), or
press the Apps button (Uconnect 4/4 NAV)
located near the bottom of the touchscreen,
then press the Settings button on the touch -
screen to access the Settings screen. When
making a selection, scroll up or down until
the preferred setting is highlighted, then
press the preferred setting until a
check-mark appears next to the setting,
showing that setting has been selected.
NOTE:
Depending on the vehicle’s options, feature
settings may vary.
Refer to “Uconnect Settings” in “Multi -
media” in your Owner’s Manual for further
information.
OFF-ROAD PAGES — IF
EQUIPPED

Your vehicle is equipped with Off-Road Pages,
which provides the vehicle status while oper -
ating on off-road conditions. It supplies infor -
mation relating to the vehicle ride height, the
status of the transfer case, the pitch and roll of
the vehicle (if equipped).

To access Off-Road Pages, press the Apps
button on the touchscreen, and then select
“Off-Road Pages”.
Main Menu
1 — Off-Road Pages App
2 — Uconnect Apps Button
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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
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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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321
Enhanced Accident Response
Feature ..................................... 115, 209
Exhaust Gas Caution .......................... 135
Exhaust System ......................... 135 , 228
Exterior Lights ............................. 32 , 137
F
Fabric Care ....................................... 244
Fabric Top ........................................ 244
Filters Air Conditioning ............................... 46
Engine Oil ..................................... 254
Flashers Hazard Warning ............................. 179Turn Signal.................................... 137
Turn Signals .....................74 , 181 , 182
Flash-To-Pass ...................................... 33
Flat Tire Changing ..................... 232 , 237
Flat Tire Stowage ....................... 232 , 237
Fluid Capacities................................. 253
Fluid Leaks ....................................... 137
Fluid Level Checks Brake ............................................ 230
Engine Oil ..................................... 224
Fluid, Brake ...................................... 257
Fluids And Lubricants ........................ 254
Fog Lights ..............................33 , 72 , 182
Fog Lights, Rear .................................. 33 Fog Lights, Service ............................ 182
Fold And Tumble Rear Seat .................. 27
Fold-Flat Seats .................................... 24
Folding Rear Seats .............................. 26
Forward Collision Warning .................... 89
Four Wheel Drive ............................... 146
Operation ...................................... 146
Shifting......................................... 146
System ......................................... 146
Four Wheel Drive Operation ................ 148
Four-Way Hazard Flasher.................... 179
Freedom Panels .................................. 51
Freeing A Stuck Vehicle ..................... 206
Fuel ................................................. 248 Adding .......................................... 169
Additives ....................................... 249
Consumption ................................. 258
Filler Cap (Gas Cap) ................169 , 170
Gasoline........................................ 248
Materials Added............................. 249
Octane Rating.........................248 , 254
Requirements ................................ 253
Specifications................................ 254
Tank Capacity................................ 253
Fueling ............................................. 169
Fuses ............................................... 183 G
Gas Cap (Fuel Filler Cap) ............ 169
, 170
Gasoline Particulate Filter (GPF)............59
Gasoline, (Fuel) .................................248
Glass Cleaning ...................................246
GVWR ...............................................174
H
Hard Top .............................................51
Hazard Warning Flashers ....................179
Head Restraints ...................................28
Headlights Automatic ........................................33
Bulb Replacement ..........................181
Cleaning ........................................242
High Beam/Low Beam Select Switch .........................................32
Leveling...........................................34 Lights On Reminder ..........................34
Passing............................................33Replacing ......................................181
Heated Steering Wheel .........................31
High Beam/Low Beam Select
(Dimmer) Switch ..................................32
Hill Descent Control .............................83
Hill Descent Control Indicator ...............83
Hill Start Assist....................................85
Hood Prop ...........................................55
Hood Release ......................................55
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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
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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
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