climate control JEEP WRANGLER 2023 Owner's Manual

290SAFETY
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread or sidewall. Inspect the tread for cuts
and cracks. Inspect sidewalls for cuts, cracks, and bulges.
Check the lug nut/bolt torque for tightness. Check the
tires (including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake lights and
exterior lights while you work the controls. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
coolant, oil, or other fluid leaks. Also, if gasoline fumes are
detected or if fuel or brake fluid leaks are suspected, the
cause should be located and corrected immediately.
EXHAUST GAS
The best protection against carbon monoxide entry into
the vehicle body is a properly maintained engine exhaust
system.
Whenever a change is noticed in the sound of the exhaust
system, when exhaust fumes can be detected inside the
vehicle, or when the underside or rear of the vehicle is
damaged, have an authorized dealer inspect the complete
exhaust system and adjacent body areas for broken,
damaged, deteriorated, or mispositioned parts. Open seams or loose connections could permit exhaust fumes
to seep into the passenger compartment. In addition,
inspect the exhaust system each time the vehicle is raised
for lubrication or oil change. Replace as required.
CARBON MONOXIDE WARNINGS
WARNING!
Exhaust gases can injure or kill. They contain carbon
monoxide (CO), which is colorless and odorless.
Breathing it can make you unconscious and can
eventually poison you. To avoid breathing (CO), follow
these safety tips:

Do not run the engine in a closed garage or in
confined areas any longer than needed to move your
vehicle in or out of the area.
 If you are required to drive with the trunk/liftgate/
rear doors open, make sure that all windows are
closed and the climate control BLOWER switch is set
at high speed. DO NOT use the recirculation mode.
 If it is necessary to sit in a parked vehicle with the
engine running, adjust your heating or cooling
controls to force outside air into the vehicle. Set the
blower at high speed.
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas, which can
kill. Never run the engine in a closed area, such as a
garage, and never sit in a parked vehicle with the
engine running for an extended period. If the vehicle
is stopped in an open area with the engine running
for more than a short period, adjust the ventilation
system to force fresh, outside air into the vehicle.
 Guard against carbon monoxide with proper mainte -
nance. Have the exhaust system inspected every
time the vehicle is raised. Have any abnormal condi -
tions repaired promptly. Until repaired, drive with all
side windows fully open.
 When exiting the vehicle, always make sure the igni -
tion is in the OFF position, remove the key fob from
the vehicle and lock your vehicle.

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291
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS
The Hazard Warning Flashers button is located on the
instrument panel below the climate controls.

Hazard Warning Flashers Button

Push the button to turn on the Hazard Warning Flashers.
When the button is activated, all directional turn signals
will flash on and off to warn oncoming traffic of an
emergency. Push the button 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 only when your
vehicle is disabled or signaling a safety hazard warning 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.
ASSIST AND SOS SYSTEM — IF EQUIPPED

ASSIST And SOS Buttons

If equipped, the overhead console contains an ASSIST and
an SOS button.
NOTE:
Your vehicle may be transmitting data as authorized by
the subscriber Úpage 381.
 The ASSIST and SOS buttons will only function if you
are connected to an operable LTE (voice/data) or 4G
(data) network, which comes as a built-in function.
Other Uconnect services will only be operable if your
SiriusXM Guardian™ service is active and you are
connected to an operable LTE (voice/data) or 4G (data)
network.
ASSIST Call
The ASSIST Button is used to automatically connect you to
any one of the following support centers:
 Roadside Assistance – If you get a flat tire, or need a
tow, just push the ASSIST button and you’ll be
connected to someone who can help. Roadside Assis -
1 — ASSIST Button
2 — SOS Button
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in
this vehicle. Only use the features and applications
when it is safe to do so. Failure to do so may result in an
accident involving serious injury or death.
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SERVICING AND MAINTENANCE359
on a specified government test course.
For example, a tire graded 150 would
wear one and one-half times as well on
the government course as a tire graded
100. The relative performance of tires
depends upon the actual conditions of
their use, however, and may depart
significantly from the norm due to
variations in driving habits, service
practices, and differences in road
characteristics and climate.
TRACTION GRADES
The Traction grades, from highest to
lowest, are AA, A, B, and C. These grades
represent the tire's ability to stop on wet
pavement, as measured under
controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have poor
traction performance.
TEMPERATURE GRADES
The Temperature grades are A (the
highest), B, and C, representing the tire's
resistance to the generation of heat and
its ability to dissipate heat, when tested
under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance, which all
passenger vehicle tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory test wheel, than the
minimum required by law.
STORING THE VEHICLE
WARNING!
The traction grade assigned to this tire is based on
straight-ahead braking traction tests, and does not
include acceleration, cornering, hydroplaning, or peak
traction characteristics.
WARNING!
The temperature grade for this tire is established for a
tire that is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading,
either separately or in combination, can cause heat
buildup and possible tire failure.
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 supple -
mental 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 an authorized dealer.
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383
Bulb Replacement .............................................. 342, 343
Bulbs, Light.......................................................... 290, 342
Bumper End Cap Removal .......................................... 178
CCamera, Rear ............................................................... 163
Capacities, Fluid ........................................................... 373
Caps, Filler Fuel .......................................................................... 165
Oil (Engine) .............................................................. 314
Radiator (Coolant Pressure)................................... 330
Car Washes .................................................................. 361
Carbon Monoxide Warning .......................................... 290
Cargo Load Floor .......................................................... 102
Cargo Tie-Downs .......................................................... 102
Carpeting ...................................................................... 363
CD.................................................................................. 210
Cellular Phone .............................................................. 240
Center High Mounted Stop Light................................. 345
Certification Label ........................................................ 169
Chains, Tire................................................................... 357
Chart, Tire Sizing .......................................................... 346
Check Engine Light (Malfunction Indicator Light) ...... 125
Checking Your Vehicle For Safety ............................... 288
Checks, Safety.............................................................. 288
Child Restraint.............................................................. 277
Child Restraints Booster Seats.......................................................... 279
Child Seat Installation ............................................ 286
How To Stow An unused ALR Seat Belt ................. 284
Infant And Child Restraints .................................... 278Locating The LATCH Anchorages ........................... 282Lower Anchors And Tethers For Children .............. 280 Older Children And Child Restraints....................... 278
Seating Positions ..................................................... 280
Clean Air Gasoline ........................................................ 369
Cleaning Wheels .....................................................................356
Climate Control Automatic ................................................................... 54
Manual ....................................................................... 57
Cold Weather Operation ............................................... 128
Compact Spare Tire ...................................................... 355
Connected Services ................ 225
, 226, 227, 228, 237
Connector UCI .............................................................................. 61
Universal Consumer Interface (UCI) ......................... 61
Console............................................................................ 60 Floor ........................................................................... 60
Contract, Service .......................................................... 379
Controls ......................................................................... 201
Cooling Pressure Cap (Radiator Cap) ..........................330
Cooling System ............................................................. 328 Adding Coolant (Antifreeze) ....................................329
Coolant Level ...........................................................330
Cooling Capacity ...................................................... 373
Disposal Of Used Coolant ....................................... 330Drain, Flush, And Refill............................................329
Inspection ...................................................... 329
, 330
Points To Remember............................................... 331
Pressure Cap ...........................................................330
Radiator Cap ............................................................330 Selection Of Coolant (Antifreeze) ........ 329
, 373, 374
Corrosion Protection ..................................................... 360
Cruise Control (Speed Control) .......................... 151
, 152
Cruise Light ......................................................... 123, 124 Customer Assistance ................................................... 377
Customer Programmable Features ............................. 184
Cybersecurity ................................................................ 184
DDaytime Running Lights ................................................. 51
Dealer Service .............................................................. 318
Defroster, Windshield .................................................. 289
Delay (Intermittent) Wipers............................................ 53
Deleting A Phone .......................................................... 216
Diagnostic System, Onboard ....................................... 124
Diesel Display Messages ................................................... 115
Diesel Fuel .................................................................... 371
Diesel Fuel Requirements ........................................... 371 Bulk Storage Of ....................................................... 167
Diesel Fuel System, Re-Priming .................................. 323
Dimmer Switch Headlight ................................................................... 51
Dipsticks Oil (Engine) .............................................................. 317
Disable Vehicle Towing ................................................ 303
Disc Drive ...................................................................... 210
Disconnecting ............................................................... 216
Disposal Antifreeze (Engine Coolant) .................................... 330
Disturb........................................................................... 219
Door Ajar .............................................................. 117
, 119
Door Ajar Light ..................................................... 117, 119
Door Frame ..................................................................... 95 Installation ................................................................. 95
Removal..................................................................... 95
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390
Towing .........................................................170, 172, 303
Disabled Vehicle ..................................................... 303
Recreational ............................................................ 176
Weight...................................................................... 172
Towing Behind A Motorhome ...................................... 176
Trac-Lok Rear Axle ................................................................. 144
Traction Control............................................................ 251
Trailer Sway Control (TSC) ........................................... 251
Trailer Towing ............................................................... 170 Hitches .................................................................... 172
Minimum Requirements ........................................ 173
Trailer And Tongue Weight ............................ 172
, 173
Wiring....................................................................... 174
Trailer Towing Guide .................................................... 172
Trailer Weight ............................................................... 172
Transfer Case ............................................................... 332 Fluid ......................................................................... 376
Four-Wheel-Drive-Operation .......................... 141
, 142
Maintenance ........................................................... 332
Transmission ................................................................ 138 Automatic ....................................................... 138
, 333
Fluid ......................................................................... 376
Maintenance ........................................................... 333
Manual .................................................................... 134
Shifting .................................................................... 137
Transporting Pets ......................................................... 288
Tread Wear Indicators ................................................. 354
Turn Signals......................................................... 123
, 344
UUCI Connector .................................................................61 Uconnect Phone Call Features ............................................... 217 Things You Should Know About Your Uconnect
Phone .................................................................. 220
Uconnect Settings ..................................................... 18
Uconnect Phone ................................................. 214
, 215
Answer Or Ignore An Incoming Call — Call Currently In Progress ..................................219
Answer Or Ignore An Incoming Call — No Call Currently In Progress............................. 219
Bluetooth Communication Link .............................. 222
Call Continuation ..................................................... 220 Call Controls............................................................. 218
Call Termination ...................................................... 220
Cancel Command ....................................................214Connecting To A Particular Mobile Phone Or Audio
Device After Pairing............................................216
Help Command........................................................ 214
Join Calls .................................................................. 220
Making A Phone Or Audio Device A Favorite .........216 Making A Second Call While Current Call Is In Progress .............................................................. 220
Managing Your Favorites ........................................ 217
Natural Speech........................................................ 214
Operation ................................................................. 213
Overview...................................................................212 Pair (Link) Uconnect Phone To A Mobile Phone .... 214
Pair A Bluetooth Streaming Audio Device.............. 215
Phonebook Download ............................................. 217Place/Retrieve A Call From Hold ............................ 219
Power-Up .................................................................. 222
Recent Calls ............................................................. 218
Redial ....................................................................... 220
To Remove A Favorite ............................................. 217 Toggling Between Calls........................................... 220
Touch-Tone Number Entry ...................................... 218
Transfer Call To And From Mobile Phone .............. 220
Voice Command ...................................................... 220
Uconnect Settings ........................................................ 184 Customer Programmable Features ......... 18
, 21, 184
Passive Entry Programming ..................................... 21
Uconnect System.......................................................... 197
Uniform Tire Quality Grades ........................................ 358
Universal Consumer Interface (UCI) Connector ........... 61
Universal Garage Door Opener (HomeLink®) —
If Equipped

S
.............................................................. 47
Untwisting Procedure, Seat Belt.................................. 264
USB.................................................................................. 61
USB Port .......................................................................... 61
VVanity Mirrors ................................................................. 46
Vehicle Finder ......................................................233, 238
Vehicle Health Alert ...................................................... 235
Vehicle Health Report .................................................. 234
Vehicle Identification Number (VIN) ............................ 368
Vehicle Loading ...................................................169
, 349
Vehicle Maintenance ................................................... 318
Vehicle Modifications/Alterations ....................................8
Vehicle Notifications .................................................... 235
Vehicle Settings ............................................................ 184
Vehicle Storage............................................................. 359
Voice Command ........................................... 44
, 223, 225
Climate....................................................................... 59
Voice Recognition ........................................................... 44
Voice Recognition System (VR) ..................................... 44

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