2023 JEEP WRANGLER heater

276SAFETY
If you do have a collision which deploys the air bags, any
or all of the following may occur:
The air bag material may sometimes cause abrasions
and/or skin reddening to the occupants as the air bags
deploy and unfold. The abrasions are similar to friction
rope burns or those you might get sliding along a carpet
or gymnasium floor. They are not caused by contact
with chemicals. They are not permanent and normally
heal quickly. However, if you haven’t healed signifi -
cantly within a few days, or if you have any blistering,
see your doctor immediately.
 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 irrita -
tion, rinse the area with cool water. For nose or throat
irritation, move to fresh air. If the irritation continues,
see your doctor. If these particles settle on your
clothing, follow the garment manufacturer’s instruc -
tions 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 communication 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 inter -
vention 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
NOTE:After an accident, remember to cycle the ignition to the
START or ON/OFF position and remove the key from the
ignition switch to avoid draining the battery. Carefully
check the vehicle for fuel leaks in the engine compartment
and on the ground near the engine compartment and fuel
tank before resetting the system and starting the engine.
If there are no fuel leaks or damage to the vehicle elec -
trical devices (e.g. headlights) after an accident, reset the
system by following the procedure described below. If you
have any doubt, contact an authorized dealer.
Enhanced Accident Response System
Reset Procedure
If applicable, refer to the “Hybrid Supplement” for
additional information.
In order to reset the Enhanced Accident Response System
functions after an event, the ignition switch must be
changed from ignition START or ON/RUN to ignition OFF.
Carefully check the vehicle for fuel leaks in the engine
compartment and on the ground near the engine
compartment and fuel tank before resetting the system
and starting the engine.
After an accident, if the vehicle will not start after
performing the reset procedure, the vehicle must be
towed to an authorized dealer to be inspected and to have
the Enhanced Accident Response System reset.
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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IN CASE OF EMERGENCY299

Positive (+) Battery Post – Diesel Engine

NOTE:The positive (+) battery post is covered with a protective
cap. Lift up on the cap to gain access to the post.
If your vehicle is equipped with a Stop/Start system, it will
be equipped with two batteries
Úpage 147.
See the following steps to prepare for jump starting:

1. Apply the parking brake, shift the automatic transmission into PARK (P) (manual transmission in
NEUTRAL) and turn the ignition OFF.

2. Turn off the heater, radio, and all electrical accessories.
3. Pull upward and remove the protective cover over the positive (+) battery post.
4. 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
Connecting The Jumper Cables

1. Connect the positive
(+) end of the jumper cable to
the 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.
4. Connect the opposite end of the negative (-) jumper
cable to a good engine ground. A “ground” is an
exposed metallic/unpainted part of the engine, frame
or chassis, such as an accessory bracket or large bolt.
The ground must be away from the battery and the
fuel injection system.

Jump Starting Label

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.
 Batteries contain sulfuric acid that can burn your
skin or eyes and generate hydrogen gas which is
flammable and explosive. Keep open flames or
sparks away from the 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.
WARNING!
Do not connect the jumper cable to the negative (-) post
of the discharged battery. The resulting electrical spark
could cause the battery to explode and could result in
personal injury.
7

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300IN CASE OF EMERGENCY
5. Start the engine in the vehicle that has the booster
battery, let the engine idle a few minutes, and then
start the engine in the vehicle with the discharged
battery.
6. Once the engine is started, remove the jumper cables in the reverse sequence.
Disconnecting The Jumper Cables

1. Disconnect the negative
(-)
end of the jumper cable
from the engine ground of the vehicle with the
discharged battery.

2. Disconnect the opposite end of the negative (-)
jumper cable from the negative (-) post of the booster
battery.
3. Disconnect the positive (+) end of the jumper cable
from the positive (+) post of the booster battery. 4. Disconnect the opposite end of the positive
(+)
jumper cable from the positive (+) post of the
discharged vehicle.
5. Reinstall the protective cover over the positive (+)
post of the discharged vehicle.
NOTE:If frequent jump starting is required to start your vehicle
you should have the battery and charging system tested at
an authorized dealer.
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be serviced by
an authorized dealer.
Potential signs of vehicle overheating:
 Temperature gauge is at HOT (H)
 Strong smell of coolant
 White smoke coming from engine or exhaust
 Coolant bottle coolant has bubbles present In the event it is observed that the temperature gauge is
moving towards or close to the HOT (H) position, you can
reduce the potential for overheating by taking the
appropriate action.

On the highways — slow down.
 In city traffic — while stopped, place the transmission in
NEUTRAL (N), but do not increase the engine idle speed
while preventing vehicle motion with the brakes.
 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.
CAUTION!
Make sure at all times that unused ends of jumper
cables are not contacting each other or either vehicle
while making connections. Failure to follow these
procedures could result in damage to the charging
system of the booster vehicle or the discharged vehicle.
CAUTION!

Do not run the booster vehicle engine above 2,000 RPM
since it provides no charging benefit, wastes fuel, and
can damage booster vehicle engine.

CAUTION!
Accessories plugged into the vehicle power outlets draw
power from the vehicle’s battery, even when not in use
(i.e., cellular devices, etc.). Eventually, if plugged in long
enough without engine operation, the vehicle’s battery
will discharge sufficiently to degrade battery life and/or
prevent the engine from starting.
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.

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338SERVICING AND MAINTENANCE
F25 –10 Amp RedModule Shift By Wire (MOD_SBW)
F26 40 Amp Green –Central Body Controller (CBC) 2-EXTERIOR LIGHTS #1
F27 30 Amp Pink –Front Wipers
F28 40 Amp Green –Central Body Controller (CBC) 3-POWER LOCKS
F29 40 Amp Green –Central Body Controller (CBC) 4-EXTERIOR LIGHTS #2
F30 ––Spare *
F31 –10 Amp RedDIAGNOSTIC PORT
F32 –10 Amp RedHeating Ventilation Air Conditioning Mod (HVAC CTRL MOD)/Steering
Column Lock (SCL)/Occupant Classification Module (OCM)/Driver
Presence Detection Module (DPDM)
F33 –10 Amp RedParkTronics System (PTS)/Infrared Camera Module (IRCM)/Airbag
Disable Lamps (AIRBAG DISABLE LMPS)
F34 –10 Amp RedElectronic Stability Control (ESC)/Electric Hydraulic Power Steering
(EHPS)/Smart Bar Control Module (SBCM) WAKE UP
F35 30 Amp Pink –BRAKE VAC PMP*
F36 30 Amp Pink –TRAILER TOW ELEC BRK MOD*
F37 30 Amp Pink –TRAILER TOW CONN 7W*
F38 20 Amp Blue –Engine Control Module (ECM)
F39 –15 Amp BlueMGU Coolant Pump (3.6)*
F40 –15 Amp BlueDriveTrain Control Module (DTCM)/Axle Lock (AXLE LOC) FT_RR
F41 –15 Amp BlueInstrument Cluster (IC)/Security GateWay (SGW) WAKE UP
F42 –10 Amp RedPCR Ctrl Feed (ESS) *
F43 –20 Amp Yellow PWR OUTLET (CARGO) BATT
F44 –10 Amp RedInfraRed Camera (IRCAM) HEATERS
F45 –20 Amp Yellow PWR OUTLET (CARGO) IGN
CavityCartridge Fuse Micro Fuse Description

* If Equipped

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342SERVICING AND MAINTENANCE
BULB REPLACEMENT
Replacement Bulbs, Names, And Part Numbers
In the instance a bulb needs to be replaced, this section includes bulb description and replacement part numbers.
NOTE:See an authorized dealer for LED bulb replacement.
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.
Exterior Bulbs
Bulb Name Bulb Number
Headlamps (2) H13
Premium Head Lamps LED
Sport Front Park/Turn Signal Lamps (2) 7444NALL
Premium Front Park/Turn Signal Lamps (2) LED
Base (Sahara/Rubicon) Turn Lamp 7440NALL/WY21WLL
Base (Sahara/Rubicon) Park DRL Lamp 7443LL
Front Side Marker Lamps (2) LED
Base Fog Lamps PSX24W

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384
Door Locks
Automatic ...................................................................23
Door Off Mirror Kit...........................................................29
Door Off Mirror Kit — If Equipped

S
............................ 29
Doors................................................................................ 20 Removal .............................................................. 24
, 27
Removal, Front...........................................................24
Removal, Rear ...........................................................27
Drag & Drop.................................................................. 200
Draining Fuel/Water Separator Filter ......................... 321
Driver Memory Presets ................................................ 207
Driver’s Seat Back Tilt ............................................. 37
, 38
Driving ........................................................................... 178
EElectric Brake Control System..................................... 245 Anti-Lock Brake System ......................................... 244
Electronic Roll Mitigation .............................. 245
, 251
Electric Remote Mirrors ..................................................46 Electrical Outlet, Auxiliary (Power Outlet) ...................... 62Electrical Power Outlets..................................................62Electronic Stability Control (ESC) ................................ 246
Electronic Throttle Control Warning Light................... 118
Emergency In Case Of ................................................................ 291SOS Emergency Call ............................................... 291
Emergency Brake ......................................................... 133
Emergency, In Case Of Jacking..................................................................... 293
Jump Starting .......................................................... 298
Tow Hooks ............................................................... 304
Emission Control System Maintenance...................... 125 Engine............................................................................314
Air Cleaner ............................................................... 319
Block Heater ............................................................129Break-In Recommendations ...................................133
Checking Oil Level ...................................................317
Compartment........................................ 314
, 315, 316
Compartment Identification................. 314, 315, 316
Coolant (Antifreeze)................................................. 374
Cooling .....................................................................328
Exhaust Gas Caution ............................................... 290
Fails To Start ............................................................128 Flooded, Starting ..................................................... 128Fuel Requirements ........................................ 369
, 373
Idling......................................................................... 131
Jump Starting...........................................................298
Oil .......................................................... 318
, 373, 374
Oil Filler Cap ............................................................. 314
Oil Filter ....................................................................319 Oil Reset...................................................................110Oil Selection ................................................... 318
, 373
Oil Synthetic ............................................................. 318
Starting.....................................................................126
Enhanced Accident Response Feature ............. 276
, 305
Ethanol .......................................................................... 370
Exhaust Gas Caution ....................................................290
Exhaust Gas Cautions ..................................................290
Exhaust System .................................................. 290
, 328
Exterior Lights ........................................................50, 290
FFabric Care ....................................................................361
Fabric Top...................................................................... 361
Family Alerts .................................................................. 236
FAQ ................................................................................ 237 Features ........................................................................ 228
Filters
Air Cleaner ............................................................... 319Air Conditioning ................................................ 59
, 325
Engine Fuel .............................................................. 321 Engine Oil................................................................. 319
Engine Oil Disposal ................................................. 319
Flashers Hazard Warning....................................................... 291Turn Signal............................................................... 290Turn Signals.................................................... 123
, 344
Flash-To-Pass.................................................................. 51
Flat Tire Changing ...............................................345
, 355
Flat Tire Stowage .................................................345, 355
Flooded Engine Starting............................................... 128
Fluid Capacities ............................................................ 373
Fluid Leaks.................................................................... 290
Fluid Level Manual Transmission ............................................. 332
Fluid Level Checks ....................................................... 332 Brake........................................................................ 331
Engine Oil................................................................. 317
Fluid, Brake................................................................... 376
Fog Lights...................................................................... 344
Fog Lights, Service ....................................................... 344
Fold And Tumble Rear Seat ........................................... 39
Fold-Flat Seats ................................................................ 37
Folding Rear Seats ......................................................... 39
Folding Windshield ......................................................... 97
Forward Collision Warning ........................................... 255
Four Wheel Drive .......................................................... 140 Operation ........................................................140
, 141
Shifting..................................................................... 140 System ..................................................................... 140

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389
Signals, Turn...............................................123, 290, 344
Sirius Satellite Radio ................................................... 203 Favorites.................................................................. 206
Replay ...................................................................... 205
SiriusXM Satellite Radio Browse in SXM ........................................................ 206Favorites.................................................................. 206
Replay ...................................................................... 205
Smart Watch................................................................. 236
Snow Chains (Tire Chains)........................................... 357
Snow Tires .................................................................... 355
Soft Top .................................................................... 66
, 74
Soft Top Windows ...........................................................74
SOS Call ............................................................... 228
, 237
Spare Tires .................................................295, 355, 356
Specifications Fuel (Gasoline) ........................................................ 374Oil ............................................................................. 374
Speed Control Accel/Decel ............................................................. 152
Accel/Decel (ACC Only)........................................... 155Cancel ...................................................................... 152Resume ................................................................... 152
Speed Control (Cruise Control) ................................... 152
Starting ................................................................ 126
, 129
Automatic Transmission................................ 126, 129
Button .........................................................................15
Cold Weather .......................................................... 128
Engine Block Heater ............................................... 129
Engine Fails To Start............................................... 128
Manual Transmission ............................................. 126
Remote ....................................................................... 17
Starting And Operating ................................................ 126
Starting Procedures ............................................ 126
, 129 Starting Procedures (Diesel Engines)..........................129
Steering ........................................................................... 36
Power ....................................................................... 146
Tilt Column ................................................................. 36
Wheel, Heated ........................................................... 37
Wheel, Tilt .................................................................. 36
Steering Wheel Audio Controls ....................................201
Steering Wheel Mounted Sound System .................... 201
Stolen Vehicle Assistance .................................. 234
, 238
Stop/Start ........................................................... 147, 149
Storage .............................................................. 60, 74, 93
Behind the Seat ......................................................... 61
Storage, Vehicle ............................................................359
Store Radio Presets ...................................................... 207
Storing Your Vehicle ..................................................... 359
Stuck, Freeing ............................................................... 302
Sun Roof .......................................................................... 91 Sunrider® For Hard Top ................................................. 89
Sway Bar Disconnect Electronic ................................................................. 145
Sway Control, Trailer..................................................... 251
Swing Gate, Rear .......................................................... 101
Synthetic Engine Oil ...................................................... 318
System, Remote Starting ............................................... 17
TTelescoping Steering Column ........................................ 36
Temperature Control, Automatic (ATC) ......................... 59 Tie Down Hooks, Cargo ................................................ 102
Tilt Steering Column ....................................................... 36
Tire And Loading Information Placard ......................... 349
Tire Markings ................................................................ 345
Tire Safety Information................................................. 345 Tires ................................................... 290
, 352, 355, 358
Aging (Life Of Tires) ................................................. 354 Air Pressure ............................................................. 352
Chains ...................................................................... 357Changing.................................................................. 293
Compact Spare........................................................ 355General Information.......................................352
, 355
High Speed .............................................................. 353 Inflation Pressure .................................................... 352
Life Of Tires ............................................................. 354
Load Capacity .......................................................... 349
Pressure Monitoring System (TPMS) ............ 121
, 257
Quality Grading........................................................ 358 Radial ....................................................................... 353
Replacement ........................................................... 354
Rotation ................................................................... 358
Safety .............................................................. 345
, 352
Sizes......................................................................... 346
Snow Tires ............................................................... 355 Spare Tires ........................................... 295
, 355, 356
Spinning ................................................................... 353
Tread Wear Indicators ............................................ 354
Wheel Nut Torque ................................................... 368
To Open Hood ............................................................... 100
Tongue Weight/Trailer Weight..................................... 173
Top Dual............................................................................ 66
Hard ........................................................................... 66
Power Sliding ............................................................. 91
Removable................................................................. 66
Soft............................................................................. 66
Tow Hooks Emergency ............................................................... 304
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