display JEEP WRANGLER 2023 Owners Manual

310SERVICING AND MAINTENANCE
SCHEDULED SERVICING — DIESEL ENGINE
Your vehicle is equipped with an automatic oil change
indicator system. The oil change indicator system will
remind you that it is time to take your vehicle in for
scheduled maintenance.
Based on engine operation conditions, the oil change
indicator message will illuminate. This means that service
is required for your vehicle. Operating conditions such as
frequent short-trips, trailer tow, extremely hot or cold
ambient temperatures will influence when the “Oil Change
Required” message is displayed. Have your vehicle
serviced as soon as possible, within the next 500 miles
(805 km).
An authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other than
an authorized dealer, to reset the message
Úpage 108.
NOTE:Under no circumstances should oil change intervals
exceed 10,000 miles (16,000 km) or 12 months,
whichever comes first.
Engine Oil Filter Replacement
Residual oil in the housing may spill from the housing
when the new filter is installed if the residual oil is not
either removed from the housing or enough time has not
elapsed to allow the oil to drain back into the engine.
When servicing the oil filter on this engine, open the filter
cap approximately six turns until the cap o-ring is visible
and stop. Wait five minutes with the cap in this position to
allow dirty engine oil to drain back into the engine. After
five minutes, the cap and filter assembly can be removed
and discarded. When installing the new oil filter cartridge
assembly, ensure the cap is tightened to the specified
torque to prevent low oil pressure conditions. Once A Month Or Before A Long Trip:

Check engine oil level
 Check windshield washer fluid level
 Check the tire pressures and look for unusual wear or
damage
 Check the fluid levels of the coolant reservoir, brake
master cylinder, and fill as needed
 Check function of all interior and exterior lights

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SERVICING AND MAINTENANCE323
10. Lubricate o-ring on the cap with clean engine oil.
11. Install the new fuel filter cartridge onto the cap.
12. Insert the cap and filter into the housing with
clockwise rotation, use a socket to tighten.
13. Push the ignition switch twice without your foot on the brake to place vehicle in RUN position. This will
activate the in tank fuel pump for approximately 30
seconds. Repeat this process twice to prime the fuel
system. Start the engine using the Normal Starting
procedure. After engine start, verify the fuel filter cap
does not leak.
PRIMING IF THE ENGINE HAS RUN OUT
O
F FUEL — DIESEL ENGINE

1. Add a substantial amount of fuel to the tank, approx -
imately 2 to 5 gal (8L to 19L).

2. Push ignition switch twice without your foot on brake to put vehicle in RUN position. This will activate the in
tank fuel pump for approximately 30 seconds.
Repeat this process twice to prime the fuel system.
3. Start the engine using the Normal Starting procedure
Úpage 130.
NOTE:The engine may run rough until the air is forced from all
the fuel lines.
NOTE:
 Use of biodiesel mixture in excess of 20% can nega -
tively impact the fuel filter's ability to separate water
from the fuel, resulting in high pressure fuel system
corrosion or damage.
 In addition, commercially available fuel additives are
not necessary for the proper operation of your diesel
engine.
 For extreme cold conditions, "Mopar® Premium Diesel
Fuel Treatment" is recommended to assist with cold
starting.
INTERVENTION REGENERATION
S
TRATEGY — MESSAGE PROCESS FLOW
This engine meets all required diesel engine emissions
standards. To achieve these emissions standards, your
vehicle is equipped with a state-of-the-art engine and
exhaust system. These systems are seamlessly integrated
into your vehicle and managed by the Powertrain Control
Module (PCM). The PCM manages engine combustion to
allow the exhaust system’s catalyst to trap and burn
Particulate Matter (PM) pollutants, with no input or
interaction on your part.
Additionally, your vehicle has the ability to alert you to
additional maintenance required on your vehicle or
engine.
Refer to Instrument Cluster Display for further information
Úpage 108.
DIESEL EXHAUST FLUID
Diesel Exhaust Fluid (DEF) sometimes known simply by
the name of its active component, UREA—is a key
component of Selective Catalytic Reduction (SCR)
systems, which help diesel vehicles meet stringent
emission regulations. DEF is a liquid reducing agent that
WARNING!
Do not open the high pressure fuel system with the
engine running. Engine operation causes high fuel
pressure. High pressure fuel spray can cause serious
injury or death.
CAUTION!
The starter motor will engage for approximately
30 seconds at a time. Allow two minutes between
cranking intervals.
WARNING!
Do not use alcohol or gasoline as a fuel blending agent.
They can be unstable under certain conditions and be
hazardous or explosive when mixed with diesel fuel.
CAUTION!
Due to lack of lubricants in alcohol or gasoline, the use
of these fuels can cause damage to the fuel system.WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be grass
or leaves coming into contact with your exhaust system.
Do not park or operate your vehicle in areas where your
exhaust system can contact anything that can burn.
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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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385
Four Wheel Drive Operation ........................................ 142
Four-Way Hazard Flasher ............................................ 291
Freedom Panels .............................................................. 86
Freeing A Stuck Vehicle ............................................... 302
Front Axle (Differential) ................................................ 332
Fuel ...................................................................... 369
, 371
Adding............................................................. 165, 166
Additives .................................................................. 369
Clean Air .................................................................. 369
Ethanol .................................................................... 370
Filler Cap (Gas Cap) ................................................ 165
Filter......................................................................... 321
Gasoline .................................................................. 369
Materials Added...................................................... 369
Methanol ................................................................. 370
Octane Rating ................................................ 369
, 374
Requirements ................................................ 371, 373
Specifications................................................. 371, 374
Tank Capacity.......................................................... 373
Fueling ................................................................. 165
, 166
Fuses ............................................................................ 333
GGarage Door Opener (HomeLink) ..................................47
Gas Cap (Fuel Filler Cap) .................................... 165, 166
Gasoline, (Fuel) ............................................................ 369
Gasoline, Clean Air ....................................................... 369
Gasoline, Reformulated............................................... 369
Gauges Voltage..................................................................... 130
Gear Ranges ........................................................ 135
, 138
Getting Started ............................................................. 227 Glass Cleaning .............................................................. 367
Gross Vehicle Weight Rating .............................. 170
, 171
GVWR.............................................................................169
HHalf-Door Installation ..................................................... 31 Half-Door Installation — If Equipped
S
...................... 31
Hard Top .......................................................................... 66 Hard Top Front Panel(s) Removal

S
.......................... 83
Hazard Warning Flashers ............................................. 291
Head Restraints .............................................................. 41
Headlights Automatic ................................................................... 51
Bulb Replacement...................................................343
Cleaning ...................................................................361High Beam/Low Beam Select Switch ...................... 51
Lights On Reminder................................................... 51
Passing....................................................................... 51
Replacing ................................................................. 343
Heated Mirrors ................................................................ 46
Heated Seats .................................................................. 41
Heated Steering Wheel .................................................. 37
High Beam/Low Beam Select (Dimmer) Switch ........... 51
Hill Descent Control ...................................................... 248
Hill Descent Control Indicator ...................................... 248
Hill Start Assist .............................................................. 249
Hitches Trailer Towing .......................................................... 172
HomeLink (Garage Door Opener) .................................. 47
Hood Prop .....................................................................100
Hood Release................................................................ 100
IIgnition ............................................................................ 15 Switch ........................................................................ 15
In Case Of Emergency .................................................. 291
Inside Rearview Mirror ................................................... 45
Instrument Cluster ....................................................... 104 Descriptions ............................................................ 123
Display ..................................................................... 108Engine Oil Reset ...................................................... 110
Menu Items ............................................................. 112
Instrument Cluster

S
................................................ 108
Instrument Panel Lens Cleaning ................................. 367
Integrated Power Module (Fuses) ............................... 334
Interior And Instrument Lights....................................... 52
Interior Appearance Care............................................. 362
Interior Lights.................................................................. 52
Intermittent Wipers (Delay Wipers) ............................... 53
Intervention Regeneration Strategy ............................ 323
Introduction .................................................................. 226
Inverter Power ......................................................................... 63
JJack Location ................................................................ 294
Jack Operation.............................................................. 295
Jacking And Tire Changing

S
................................... 293
Jacking Instructions ..................................................... 295
Jump Starting ............................................................... 298
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