2023 JEEP WRANGLER ECU

SERVICING AND MAINTENANCE363
CARPET REMOVAL
Front Carpets (Two And Four Door Models):

1. Remove the front grommets.

Front Carpet

2. Pull the carpet out from the front to the rear.

Front Carpet Pulled Away

3. Remove the grommets under the front seat. First for
the rear carpet and then the front carpet.

Front And Rear Carpet Split

4. Under the back of the front seat, open the carpet split and then pull out the rear edge and slide the carpet
to the front (do not remove the harness).

Rear Underside Of Front Seat Carpet Split

WARNING!
If operating the vehicle without carpet in place the
floor may become hot, and there is a risk of burns.
 An improperly attached, damaged, folded, or
damaged grommets may cause your carpet to inter -
fere with the accelerator, brake, or clutch pedals and
cause a loss of vehicle control. To prevent SERIOUS
INJURY or DEATH: ALWAYS securely attach your
carpet using the grommets.
 ALWAYS make sure objects cannot fall or slide into
the driver’s side floor area when the vehicle is
moving. Objects can become trapped under acceler -
ator, brake, or clutch pedals and could cause a loss
of vehicle control.
 NEVER place any objects under the carpet (e.g.,
towels, keys, etc.). These objects could change the
position of the carpet and may cause interference
with the accelerator, brake, or clutch pedals.
 ONLY install carpet designed to fit your vehicle.
NEVER install carpet that cannot be properly
attached and secured to your vehicle. If the carpet
needs to be replaced, only use manufacturer
approved carpet for the specific make, model, and
year of your vehicle.
 If the vehicle carpet has been removed and
re-installed, always properly attach carpet to the floor
and check that the floor mat fasteners are secure to
the vehicle carpet. Fully depress each pedal to check
for interference with the accelerator, brake, or clutch
pedals then re-install the floor mats.
1 — Grommets
8

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382
INDEX
AAbout Your Brakes ....................................................... 368
Adaptive Cruise Control (ACC)
(Cruise Control) ................................................... 151
, 152
Adding Engine Coolant (Antifreeze) ............................ 329
Adding Fuel.......................................................... 165
, 166
Additives, Fuel .............................................................. 369
Advance Phone Connectivity ....................................... 220
Air Bag Air Bag Operation.................................................... 269
Air Bag Warning Light .................................... 267
, 269
Enhanced Accident Response ...................... 276, 305
Event Data Recorder (EDR).................................... 305 Front Air Bag .................................................. 268
, 269
If Deployment Occurs ............................................. 275
Knee Impact Bolsters ............................................. 274
Maintaining Your Air Bag System .......................... 277
Maintenance ........................................................... 277
Redundant Air Bag Warning Light ......................... 267
Transporting Pets.................................................... 288
Air Bag Light ...............................................117
, 267, 289
Air Cleaner, Engine (Engine Air Cleaner Filter) ........... 319
Air Conditioner Maintenance ...................................... 324
Air Conditioner Refrigerant ................................. 324
, 325
Air Conditioner System ................................................ 324
Air Conditioning Filter ........................................... 59
, 325
Air Conditioning System..................................................59 Air Conditioning, Operating Tips ..................................... 59Air Filter......................................................................... 319
Air Pressure Tires ......................................................................... 352 Alarm
Arm The System......................................................... 20
Disarm The System ................................................... 20
Security Alarm...................................................19
, 119
Alterations/Modifications Vehicle.......................................................................... 8
Android Auto........................................................ 222
, 223
Android Auto™
S
....................................................... 222
Antifreeze (Engine Coolant) ............................... 329, 373
Disposal ...................................................................330
Anti-Lock Brake System (ABS) ..................................... 244
Anti-Lock Warning Light................................................ 119
Apple CarPlay ...................................................... 222
, 225
Apple CarPlay®
S
...................................................... 224
Assist, Hill Start ............................................................. 249
Audio Settings ............................................................... 208
Audio Systems (Radio) ................................................. 184
Auto Down Power Windows............................................ 66
Automatic Dimming Mirror ............................................. 45 Automatic Door Locks .................................................... 23Automatic Headlights ..................................................... 51Automatic High Beams ................................................... 51
Automatic Temperature Control (ATC) .......................... 59
Automatic Transmission ............................................... 138 Adding Fluid ............................................................. 333
Fluid And Filter Change ...........................................333
Fluid Change ............................................................333Fluid Level Check ....................................................333Fluid Type ....................................................... 333
, 376
Gear Ranges ............................................................138 Special Additives ..................................................... 333 Automatic Transmission Limp Home Mode ............... 139
AutoPark ....................................................................... 127
Auxiliary Electrical Outlet (Power Outlet) ...................... 62
Auxiliary Power Outlet .................................................... 62
Auxiliary Switches ........................................................... 64
Axle Fluid....................................................................... 376
Axle Lock ....................................................................... 144
BBattery..................................................................117, 317
Charging System Light ............................................ 117
Keyless Key Fob Replacement................................. 14
Belts, Seat..................................................................... 288
Blind Spot Monitoring .................................................. 252
Bluetooth Connecting To A Particular Mobile Phone OrAudio Device After Pairing ................................. 216
Body Mechanism Lubrication ...................................... 326
B-Pillar Location ........................................................... 349
Brake Assist System..................................................... 245
Brake Control System .................................................. 245
Brake Fluid...........................................................331
, 376
Brake System ......................................................331, 368
Anti-Lock (ABS) ........................................................ 368 Fluid Check .............................................................. 331Master Cylinder ....................................................... 331Parking..................................................................... 133Warning Light .......................................................... 117
Brake/Transmission Interlock ..................................... 138

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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
11

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386
K
Key Fob Arm The System .........................................................20
Disarm The System....................................................20
Programming Additional Key Fobs ...........................15
Key Fob Battery Service (Remote Keyless Entry) .........14
Key Fob Programming (Remote Keyless Entry) ............ 15
Keyless Enter 'n Go™ ...................................................... 21 Passive Entry .............................................................. 21
Keys .................................................................................13 Replacement .............................................................. 15
LLane Change Assist ........................................................52
Lap/Shoulder Belts ...................................................... 262
Latches ......................................................................... 290 Hood ............................................................... 100
, 118
Leaks, Fluid .................................................................. 290
Life Of Tires .................................................................. 354
Light Bulbs ........................................................... 290
, 342
Lights ............................................................................ 290 Air Bag ...................................................117
, 267, 289
Automatic Headlights ................................................51
Brake Assist Warning ............................................. 247
Brake Warning ........................................................ 117 Bulb Replacement ......................................... 342
, 343
Center Mounted Stop ............................................. 345
Cruise.............................................................. 123
, 124
Daytime Running ....................................................... 51
Dimmer Switch, Headlight.........................................51
Electric Power Steering .......................................... 118
Electronic Stability Program (ESP) Indicator .. 118
, 119

Exterior ............................................................. 50, 290
Fog ........................................................................... 344 Fuel Filler Cap .......................................................... 120
Hazard Warning Flasher ......................................... 291
Headlights ................................................................ 343
High Beam ................................................................. 51
High Beam/Low Beam Select .................................. 51
Hill Descent Control Indicator................................. 248
Interior........................................................................ 52
Lights On Reminder................................................... 51
Low Fuel ...................................................................120 Low Washer Fluid ....................................................120Malfunction Indicator (Check Engine).................... 120
Oil Temperature ....................................................... 118
Park .......................................................................... 123Passing....................................................................... 51
Rear Servicing.......................................................... 344
Rear Tail Lamps....................................................... 344
Seat Belt Reminder ................................................. 118
Security Alarm.......................................................... 119
Service ........................................................... 342
, 343
Side Marker ............................................................. 344
Tire Pressure Monitoring (TPMS)............................ 257
Traction Control ....................................................... 247
Transmission Temperature..................................... 119
Turn Signal ............................................................... 290
Turn Signals ................................................... 123
, 344
Warning Instrument Cluster Descriptions.... 118, 123
Load Floor, Cargo.......................................................... 102
Load Shed Battery Saver Mode ...................................114
Load Shed Battery Saver On ........................................ 114
Load Shed Electrical Load Reduction ......................... 114
Load Shed Intelligent Battery Sensor..........................114
Loading Vehicle............................................................. 169 Tires.......................................................................... 349
Locking Axle ...........................................................................144 Locks
Automatic Door ......................................................... 23
Child Protection ......................................................... 23
Power Door ................................................................ 21
Low Tire Pressure System............................................ 257
Lowering The Soft Top Into Sunrider® Position

S
.... 67
Lubrication, Body.......................................................... 326
Lug Nuts/Bolts ............................................................. 368
Luggage Carrier ............................................................ 102
MMaintenance................................................................... 91
Maintenance Free Battery ........................................... 317
Maintenance Schedule .......................................306
, 310
Malfunction Indicator Light (Check Engine) ......120, 125
Manage My Account..................................................... 237
Manual Park Release ........................................................... 301
Service ..................................................................... 380
Manual Transmission..........................................134
, 332
Fluid Level Check .................................................... 332
Lubricant Selection ........................................332
, 376
Shift Speeds ............................................................ 135
Media Mode .................................................................. 210
Methanol ....................................................................... 370
Mirrors ............................................................................. 45 Automatic Dimming .................................................. 45
Electric Powered ....................................................... 46
Electric Remote ......................................................... 46
Heated ....................................................................... 46
Outside....................................................................... 46
Rearview .................................................................... 45
Vanity ......................................................................... 46
Mobile App .................................................................... 227

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388
Remote ControlStarting System..........................................................17
Remote Features, Door Lock/Unlock ................ 231
, 237
Remote Features, Horn And Lights............................. 232
Remote Features, Starting ................................. 231
, 238
Remote Keyless Entry Arm The Alarm............................................................20
Disarm The Alarm ...................................................... 20
Programming Additional Key Fobs ...........................15
Remote Sound System (Radio) Control ...................... 201
Remote Start (Diesel) ..................................................... 19
Remote Start (Gas) .........................................................17 Remote Starting Exit Remote Start Mode ............................................18
Uconnect Customer Programmable Features .........18
Uconnect Settings...................................................... 18
Remote Starting System..........................................17
, 19
Removable Doors..................................................... 24, 27
Front ...........................................................................24
Rear ............................................................................27
Removable Top ............................................................... 91
Removing The Soft Top

S
...........................................80
Replacement Bulbs...................................................... 342
Replacement Keys ..........................................................15 Replacement Tires ....................................................... 354
Reporting Safety Defects............................................. 379
Restraints, Child ........................................................... 277
Restraints, Head ............................................................. 41
Roadside Assistance........................................... 232
, 237
Roll Over Warning ............................................................. 8
Roof Type Carrier ......................................................... 102
Rotation, Tires .............................................................. 358
SSafety.............................................................................200
Safety Checks Inside Vehicle ....................................... 288
Safety Checks Outside Vehicle ....................................290
Safety Defects, Reporting ............................................379
Safety Features............................................................. 200
Safety Information, Tire ................................................ 345
Safety Tips.....................................................................288
Safety, Exhaust Gas...................................................... 290
Satellite Radio............................................................... 203
Saved Radio Stations ...................................................207
Schedule, Maintenance ..................................... 306
, 310
Seat Belt Reminder ...................................................... 118
Seat Belts ............................................................ 261
, 288
Adjustable Shoulder Belt ........................................ 264
Adjustable Upper Shoulder Anchorage ..................264 Adjustable Upper Shoulder Belt Anchorage ..........264Automatic Locking Retractor (ALR) ........................ 265Child Restraints ....................................................... 277
Energy Management Feature ................................. 265
Extender ...................................................................265Front Seat ............................................. 261
, 262, 263
Inspection ................................................................ 288
Lap/Shoulder Belt Operation ................................. 263
Lap/Shoulder Belt Untwisting ................................ 264 Lap/Shoulder Belts ................................................. 262
Operating Instructions............................................. 263Pregnant Women..................................................... 265Pretensioners .......................................................... 265
Rear Seat ................................................................. 262
Reminder ................................................................. 261
Seat Belt Extender...................................................265 Seat Belt Pretensioner............................................ 265
Untwisting Procedure.............................................. 264
Seat Belts Maintenance .............................................. 367
Seats ............................................................................... 37 Adjustment ................................................................ 37
Fold And Tumble Rear .............................................. 39
Heated ....................................................................... 41
Height Adjustment .................................................... 38
Rear Folding .............................................................. 37
Tilting ......................................................................... 37
Security Alarm ....................................................... 19
, 119
Arm The System ........................................................ 20
Disarm The System ................................................... 20
Selec - Speed Control ................................................... 250
Selection Of Coolant (Antifreeze) ................................ 374
Send & Go ............................................................ 233
, 238
Sentry Key (Immobilizer) ................................................ 15 Sentry Key Replacement ............................................... 15
Service Assistance ....................................................... 377
Service Contract ........................................................... 379
Service Manuals ........................................................... 380
Settings ......................................................................... 184
Settings, Audio.............................................................. 208
Shifting .......................................................................... 137 Automatic Transmission ................................137
, 138
Manual Transmission ............................................. 134
Transfer Case, Shifting Into Transfer Case Neutral (N) .......................................................... 177
Transfer Case, Shifting Out Of Transfer Case Neutral (N) .......................................................... 177
Shoulder Belts .............................................................. 262
Side Step Removal ....................................................... 178

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