2018 JEEP WRANGLER 2DOORS check engine

Checking Oil Level — Gasoline Engine
WARNING!
• Never smoke while working in the engine
compartment: gas and inflammable va-
pors may be present, with the risk of fire.
• Be very careful when working in the
engine compartment when the engine is
hot: you may get burned. Do not get too
close to the radiator cooling fan: the
electric fan may start; danger of injury.
Scarves, ties and other loose clothing
might be pulled by moving parts.
CAUTION!
• Be careful not to confuse the various
types of fluids while topping up: they are
not compatible with each other! Topping
up with an unsuitable fluid could se-
verely damage your car.
• The oil level must never exceed the MAX
mark.
• Always top up using engine oil of the
same specifications as that already in
the engine.
CAUTION!
• If the engine oil is being topped up, wait
for the engine to cool down before loos-
ening the filler cap, particularly for ve-
hicles with aluminium cap (if
equipped). WARNING: risk of burns!
• Overfilling or underfilling the crankcase
will cause aeration or loss of oil pres-
sure. This could damage your engine.
To ensure proper lubrication of your vehicle's
engine, the engine oil must be maintained at
the correct level. The engine oil level should
be checked five minutes after a warmed up
engine has been shut off.
Checking the oil while the vehicle is on level
ground will improve the accuracy of the oil
level readings. Always maintain the oil level
within the SAFE zone on the dipstick. Adding
1 quart (0.95 liters) of oil when the reading is
at the bottom of the crosshatch zone will
result in a reading at the top of the cross-
hatch zone on these engines.
Adding Washer Fluid
The fluid reservoir for the windshield washers
and the rear window washer (if equipped) is
shared. The fluid reservoir is located in the
engine compartment. Be sure to check the
fluid level at regular intervals. Fill the reser-
voir with windshield washer solvent only (not
radiator antifreeze). When refilling the
washer fluid reservoir, take some washer fluid
and apply it to a cloth or towel and wipe clean
the wiper blades; this will help blade perfor-
mance.
To prevent freeze-up of your windshield
washer system in cold weather, select a solu-
tion or mixture that meets or exceeds the
temperature range of your climate. This rat-
ing information can be found on most washer
fluid containers.
WARNING!
Commercial windshield washer solvents
are flammable. They could ignite and burn
you. Care must be exercised when filling or
working around the washer solution.
SERVICING AND MAINTENANCE
220

Installing The Rear Wiper
1. Lift the wiper arm off of the glass.
2. Insert the wiper blade pivot pin into the
opening on the end of the wiper arm and
rotate the wiper in to place.
3. Place with wiper on the glass and close
the tail gate.
Cooling System
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 open a cooling
system pressure cap when the radiator
or coolant bottle is hot.
• Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts auto-
matically and may start at any time,
whether the engine is running or not.
WARNING!
• When working near the radiator cooling
fan, turn the ignition to the OFF mode.
The fan is temperature controlled and
can start at any time the ignition is in the
ON mode.
Coolant Checks
Check the engine and, intercooler (if
equipped) coolant (antifreeze) protection ev-
ery 12 months (before the onset of freezing
weather, where applicable). If the engine
and, intercooler (if equipped) is dirty or rusty
in appearance, the system should be drained,
flushed and refilled with fresh OAT coolant
(conforming to MS.90032) by an authorized
dealer. Check the front of the A/C condenser
(if equipped) or radiator for any accumulation
of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically
down the face of the A/C condenser (if
equipped) or the back of the radiator core.
Check the engine and, intercooler (if
equipped) cooling system hoses for brittle
rubber, cracking, tears, cuts, and tightness ofthe connection at the coolant recovery bottle
and radiator. Inspect the entire system for
leaks. DO NOT REMOVE THE COOLANT
PRESSURE CAP WHEN THE COOLING SYS-
TEM IS HOT.
Brake System
In order to assure brake system performance,
all brake system components should be in-
spected periodically. Refer to the “Mainte-
nance Plan” in this section for the proper
maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure
and possibly a collision. Driving with your
foot resting or riding on the brake pedal
can result in abnormally high brake tem-
peratures, excessive lining wear, and pos-
sible brake damage. You would not have
your full braking capacity in an emergency.
Fluid Level Check — Brake Master Cylinder
The fluid level of the master cylinder should
be checked whenever the vehicle is serviced,
or immediately if the brake system warning
SERVICING AND MAINTENANCE
224

UCONNECT SETTINGS
The Uconnect system allows you to access
Customer Programmable feature settings
such as Language, Display, Units, Voice,
Clock, Camera, Safety & Driving Assistance,
Mirrors & Wipers, Lights, Doors & Locks,
Auto-On Comfort, AUX Switches, Engine Off
Options, Compass Settings, Audio, Phone/
Bluetooth, Radio Setup, Restore Settings,
and System Information through buttons on
the touchscreen.
Push the SETTINGS button (Uconnect 3), or
press the “Apps” button (Uconnect 4 or
4C/4C NAV) located near the bottom of the
touchscreen, then press the “Settings” but-
ton on the touchscreen to access the Settings
screen. When making a selection, scroll up or
down until the preferred setting is high-
lighted, then press the preferred setting until
a check-mark appears next to the setting,
showing that setting has been selected. The
following feature settings are available:
• Language • Auto-On Comfort
• Display • AUX Switches
• Units • Engine Off Options• Voice • Compass — If
Equipped
• Clock • Audio
• Camera — If
Equipped• Phone/Bluetooth
• Safety & Driving As-
sistance• Radio Setup
• Mirrors & Wipers —
If Equipped• Restore Settings
• Lights • Clear Personal Data
• Doors & Locks • System Information
NOTE:
Depending on the vehicles options, feature
settings may vary.
Refer to “Uconnect Settings” in “Multime-
dia” in your Owner’s Manual for further infor-
mation.
TIPS CONTROLS AND
GENERAL INFORMATION
Steering Wheel Audio Controls
The steering wheel audio controls are located
on the rear surface of the steering wheel.
Left Switch
• Push the switch up or down to search for
the next listenable station.
• Push the button in the center to change
modes AM/FM/DAB.
Audio Controls (Back View Of Steering
Wheel)
MULTIMEDIA
288

Accessories..................262
Mopar...................262
Adding Fuel.................166
Additives, Fuel................253
Air Bag
Air Bag Operation............111
Air Bag Warning Light.........108
Disable, Passenger Air Bag......111
Enhanced Accident Response .119, 205
Event Data Recorder (EDR)......205
Front Air Bag...............110
If Deployment Occurs.........118
Knee Impact Bolsters.........116
Maintaining Your Air Bag System . .120
Maintenance...............120
Redundant Air Bag Warning Light . .109
Transporting Pets............136
Air Bag Light...........66, 108, 137
Air Conditioning Filter............45
Air Conditioning, Operating Tips......45
Air Conditioning System...........44
Air Pressure
Tires....................231
Alarm
Arm The System.............17Disarm The System............18
Security Alarm............17, 70
Alterations/Modifications
Vehicle....................3
Android Auto..........275, 281, 314
Apps....................284
Communication.............284
Maps...................283
Music...................284
Antifreeze (Engine Coolant)........257
Anti-Lock Brake System (ABS).......82
Anti-Lock Warning Light...........70
Apple CarPlay.........276, 285, 314
Apps....................287
Maps...................286
Messages.................286
Music
...................286
Phone...................286
Assist, Hill Start................84
Audio Systems (Radio)...........270
Auto Down Power Windows.........46
Automatic Headlights............36
Automatic Temperature Control (ATC) . . .44
Automatic Transmission..........148
Fluid Level Check............225Fluid Type................261
Auxiliary Electrical Outlet (Power Outlet). .57
Auxiliary Power Outlet............57
Auxiliary Switches..............60
Axle Fluid...................261
Axle Lock...................156
Battery..................68, 221
Charging System Light..........68
Belts, Seat..................137
Blind Spot Monitoring............91
B-Pillar Location..............226
Brake Assist System.............83
Brake Control System............83
Brake Fluid..............224, 261
Brake System................224
Fluid Check...............224
Master Cylinder.............224
Warning Light...............67
Brake/Transmission Interlock.......148
Bulb Replacement..........176, 178
Bulbs, Light..............139, 176
Camera, Rear................165
Capacities, Fluid..............257
INDEX
335

Caps, Filler
Fuel.................166, 167
Oil (Engine)...............217
Carbon Monoxide Warning.........137
Car Washes..................239
Center High Mounted Stop Light.....180
Chains, Tire..................237
Change Oil Indicator.............63
Changing A Flat Tire............226
Check Engine Light (Malfunction Indicator
Light)....................79
Checking Your Vehicle For Safety. . . .136
Checks, Safety................136
Child Restraints
Child Seat Installation.........134
How To Stow An unused ALR Seat
Belt....................134
Cleaning
Wheels..................236
Climate Control
Automatic.................39
Clock Settings................269
Compact Spare Tire.............235
Connector
UCI ....................289
Universal Consumer Interface (UCI) .289
Cooling System...............224Coolant Capacity............257
Inspection................224
Selection Of Coolant
(Antifreeze)............257, 259
Cruise Light.............75, 77, 78
Customer Assistance............318
Cybersecurity.................267
Daytime Running Lights...........35
Dealer Service................221
Defroster, Windshield............138
Delay (Intermittent) Wipers.........38
Diagnostic System, Onboard........78
Dimmer Switch, Headlight.........35
Dipsticks
Oil (Engine)...............220
Disabled Vehicle Towing..........202
Disturb................
.305, 313
Door Ajar.................68, 69
Door Ajar Light..............68, 69
Doors......................18
Removal................22, 24
Removal, Front..............22
Removal, Rear...............24
Drag And Drop Menu........273, 279
Driver’s Seat Back Tilt............26Dual Top....................54
Electrical Outlet, Auxiliary (Power
Outlet)....................57
Electrical Power Outlets...........57
Electric Brake Control System.......83
Anti-Lock Brake System.........82
Electronic Roll Mitigation.....85, 88
Electronic Speed Control (Cruise
Control)..................160
Electronic Stability Control (ESC).....85
Electronic Throttle Control Warning
Light.....................68
Emergency, In Case Of
Jacking...............189, 226
Jump Starting..............196
Emission Control System Maintenance . .79
Emissions...................262
Engine.....................217
Break-In Recommendations......146
Compartment.......217, 218, 219
Compartment
Identification........217, 218, 219
Coolant (Antifreeze)..........259
Cooling..................224
Exhaust Gas Caution..........137
Fuel Requirements........252, 257
INDEX
336

Jump Starting..............196
Oil..................257, 259
Oil Filler Cap...............217
Oil Selection...............257
Overheating...............199
Starting..................142
Enhanced Accident Response
Feature...............119, 205
Exhaust Gas Cautions...........137
Exhaust System...............137
Exterior Lights.............35, 139
Fabric Care..................240
Fabric Top..................240
Filters
Air Conditioning..............45
Engine Oil................259
Flashers
Hazard Warning.............176
Turn Signal............178, 179
Turn Signals.............76, 139
Flash-To-Pass.................36
Fluid, Brake.................261
Fluid Capacities...............257
Fluid Leaks..................139
Fluid Level Checks
Brake...................224Engine Oil................220
Fluids And Lubricants...........259
Fog Lights.............36, 74, 179
Fog Light Service..............179
Fold And Tumble Rear Seat.........29
Fold-Flat Seats................26
Folding Rear Seats..............28
Four-Way Hazard Flasher..........176
Four Wheel Drive..............150
Operation.................150
Shifting..................150
Systems..................150
Four Wheel Drive Operation
. . . .150, 153
Freedom Panels................51
Freeing A Stuck Vehicle..........201
Fuel......................252
Adding..................166
Additives.................253
Consumption...............262
Filler Cap (Gas Cap).......166, 167
Gasoline.................252
Materials Added.............253
Octane Rating...........252, 259
Requirements..............257
Specifications..............259
Tank Capacity..............257
Fueling....................166Fuses.....................180
Gas Cap (Fuel Filler Cap)......166, 167
Gasoline (Fuel)................252
Gasoline Particulate Filter (GPF)......60
General Information.............288
Glass Cleaning................243
Hard Top....................51
Hazard Warning Flasher..........176
Headlights
Automatic.................36
Bulb Replacement...........178
Cleaning.................239
High Beam/Low Beam Select Switch .35
Leveling...................37
Lights On Reminder...........37
Passing...................36
Replacing.................178
Head Restraints................30
Heated Mirrors.................35
High Beam/Low Beam Select (Dimmer)
Switch....................35
Hill Descent Control.............89
Hill Descent Control Indicator.......89
Hill Start Assist................84
Hood Prop...................56
337

Hood Release.................56
Ignition.....................15
Switch...................15
Installation...................51
Installing....................54
Instrument Cluster..............63
Descriptions................76
Display...................62
Menu Items................63
Instrument Panel Lens Cleaning.....243
Integrated Power Module (Fuses). . . .181
Interior Appearance Care.........242
Intermittent Wipers (Delay Wipers)....38
Introduction...................1
Inverter, Power................59
Jacking Instructions............191
Jack Location................190
Jack Operation.........191, 192, 226
Jump Starting................196
Key Fob
Arm The System.............17
Disarm The System............18
Keyless Enter-N-Go..............18
Passive Entry...............18Keys.......................13
Replacement...............14
Lane Change Assist..............37
Lap/Shoulder Belts.............102
Latches....................139
Hood....................56
Leaks, Fluid.................139
Leveling, Headlight..............37
Life Of Tires.................233
Light Bulbs..............139, 176
Lights.....................139
AirBag ............66, 108, 137
Automatic Headlights..........36
Back-Up.................179
Brake Assist Warning...........87
Brake Warning...............67
Bulb Replacement........176, 178
Center Mounted Stop..........180
Cruise...............75, 77, 78
Daytime Running.............35
Dimmer Switch, Headlight.......35
Engine Temperature Warning......68
Exterior...............35, 139
Fog ..................74, 179
Hazard Warning Flasher........176
Headlight Leveling............37Headlights................178
High Beam.................35
High Beam/Low Beam Select......35
Hill Descent Control Indicator.....89
Lights On Reminder...........37
Malfunction Indicator (Check Engine).71
Park.....................75
Passing...................36
Rear Servicing..............179
Rear Tail Lamps.............179
Seat Belt Reminder......69, 76, 77
Security Alarm..............70
Service...............176, 178
Side Marker...............179
Tire Pressure Monitoring (TPMS)....94
Traction Control..............87
Turn Signal............178, 179
Turn Signals............76, 139
Warning Instrument Cluster
Descriptions.............68, 76
Loading Vehicle
Tires....................226
Locking Axle.................156
Locks
Child Protection..............21
Lowering....................47
Lowering The Top...............47
INDEX
338

Low Tire Pressure System..........94
Lug Nuts...................246
Maintenance..................54
Maintenance Free Battery.........221
Maintenance Schedule.......208, 213
Malfunction Indicator Light (Check
Engine)...................71
Manual Park Release............200
Memory Feature (Memory Seats)......26
Memory Seat..................26
Memory Seats And Radio..........26
Mirrors.....................35
Heated...................35
Modifications/Alterations
Vehicle....................3
Monitor, Tire Pressure System.......94
Mopar Accessories.............262
Navigation..................292
New Vehicle Break-In Period.......146
Occupant Restraints.............99
Octane Rating, Gasoline (Fuel) . .252, 259
Oil, Engine..................259
Capacity.................257
Dipstick..................220Filter....................259
Pressure Warning Light.........69
Recommendation............257
Viscosity.................257
Oil Pressure Light...............69
Onboard Diagnostic System.........78
Operating Precautions............78
Operator Manual
Owner's Manual...............2
Overheating, Engine............199
Paddle Shifters...............149
ParkSense System, Rear..........163
Passenger Airbag Disable.........111
Passive Entry..................18
Personalized Main Menu......273, 279
Pets......................136
Phonebook..................304
Phone (Uconnect)..............297
Pairing
..................300
Placard, Tire And Loading Information .226
Power
Inverter...................59
Windows..................46
Power Sliding Top...............54
Operation..................54
Pinch Protect...............54Power Steering Fluid............261
Pregnant Women And Seat Belts.....106
Preparation For Jacking..........191
Pretensioners
Seat Belts................106
Radial Ply Tires...............232
Radio
Presets...........270, 274, 280
Radio Operation........268, 272, 278
Radio Screens.............272, 278
Raising.....................47
Raising The Soft Top.............47
Rear Camera.................165
Rear Cross Path................93
Rear ParkSense System..........163
Rear Swing Gate...............57
Rear Wiper/Washer..............38
Recreational Towing.............171
Shifting Into Transfer Case Neutral
(N) .....................172
Shifting Out Of Transfer Case Neutral
(N) .....................173
Release, Hood.................56
Reminder, Seat Belt............100
Remote Control
Starting System..............16
339