2018 JEEP CHEROKEE check engine light

•Regardless of the distance covered, the tim-
ing and accessory belts must be changed
every 4 years for particularly demanding use
(cold climates, city driving, long periods of
idling) or at least every 6 years. Under no
circumstances should these intervals be
exceeded.
Once A Month Or Before A Long Trip
• Check engine oil level.
• Check windshield washer fluid level.
• Check tire pressure and look for unusual wear or damage. Rotate tires at the first
sign of irregular wear, even if it occurs
before the oil indicator system turns on.
• Check the fluid levels of the coolant reser- voir and brake master cylinder, fill as
needed.
• Check function of all interior and exterior lights. At Each Oil Change
• Change the engine oil filter.
• Inspect the brake hoses and lines.
• Inspect for the presence of water in the fuel
filter/water separator unit.
CAUTION!
Failure to perform the required mainte-
nance items may result in damage to the
vehicle.
201

tire system for leaks. DO NOT REMOVE THE
COOLANT PRESSURE CAP WHEN THE
COOLING SYSTEM IS HOT.
Adding Washer Fluid
The windshield and rear window washers
share the same fluid reservoir. The fluid res-
ervoir is located in the front of the engine
compartment. Be sure to check the fluid level
in the reservoir at regular intervals. Fill the
reservoir with windshield washer solvent (not
radiator antifreeze) and operate the system
for a few seconds to flush out the residual
water.
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 performance.
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!
Commercially available windshield washer
solvents are flammable. They could ignite
and burn you. Care must be exercised
when filling or working around the washer
solution.
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
light is on. If necessary, add fluid to bring
level within the designated marks on the side
of the reservoir of the brake master cylinder.
Be sure to clean the top of the master cylin-
der area before removing cap. With disc
brakes, fluid level can be expected to fall as
the brake pads wear. Brake fluid level should
be checked when pads are replaced. If the
brake fluid is abnormally low, check the sys-
tem for leaks.
Refer to “Fluids And Lubricants” in “Techni-
cal Specifications” for further information.
WARNING!
• Use only manufacturer's recommendedbrake fluid. Refer to “Fluids And Lubri-
cants” in “Technical Specifications” for
further information. Using the wrong
type of brake fluid can severely damage
your brake system and/or impair its per-
formance. The proper type of brake fluid
209

WHEEL AND TIRE TORQUE
SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to
the vehicle. Any time a wheel has been re-
moved and reinstalled on the vehicle, the lug
nuts/bolts should be torqued using a properly
calibrated torque wrench using a high quality
six sided (hex) deep wall socket.
Torque Specifications
Lug Nut/BoltTorque **Lug Nut/Bolt
Size Lug Nut/Bolt
Socket Size
100 Ft-Lbs (135 N·m) M12 x 1.25 19 mm
**Use only an authorized dealer recom-
mended lug nuts/bolts and clean or remove
any dirt or oil before tightening.
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion
or loose particles. Tighten the lug nuts/bolts in a star pattern
until each nut/bolt has been tightened twice.
Ensure that the socket is fully engaged on the
lug nut/bolt (do not insert it halfway).
After 25 miles (40 km), check the lug nut/
bolt torque to be sure that all the lug nuts/
bolts are properly seated against the wheel.
WARNING!
To avoid the risk of forcing the vehicle off
the jack, do not tighten the lug nuts fully
until the vehicle has been lowered. Failure
to follow this warning may result in per-
sonal injury.
FUEL REQUIREMENTS —
GASOLINE ENGINE
This engine is designed to meet all emissions
regulations and provide excellent fuel
economy and performance when using high
quality unleaded gasoline with a minimum
research octane rating (RON) of 91.
Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Torque Pattern
231

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:
• Display• Engine Off Options
• Voice • Audio
• Clock • Phone/Bluetooth
• Safety & Driving
Assistance • Radio Setup
• Lights • Restore Settings
• Doors & Locks • Clear Personal Data
• Auto-On Comfort • System Information
• Compass
(Uconnect 3)
NOTE:
Depending on the vehicles options, feature
settings may vary.
Refer to “Uconnect Settings” in “Multime-
dia” in the Owner’s Manual for further infor-
mation.
IPOD/USB/SD CARD/MEDIA
PLAYER CONTROL
There are many ways to play music from
MP3 players, USB devices, or SD Cards
through your vehicle's sound system. Press
your Media button on the touchscreen to
begin.
Audio Jack (AUX)
• The AUX allows a device to be plugged into the radio and utilize the vehicle’s sound
system, using a 3.5 mm audio cable, to
amplify the source and play through the
vehicle speakers.
• Pressing the “AUX” button on the touch- screen will change the mode to auxiliary
device if the audio jack is connected, allow-
ing the music from your device to be heard
through the vehicle's speakers. To activate
the AUX, plug in the audio jack.
• The functions of the device are controlled using the device buttons. The volume may
be controlled using the radio or device.
USB Port
• Connect your compatible device into theUSB Port using a USB cable. USB Memory
sticks with audio files can also be used.
Audio from the device can be played on the
vehicle’s sound system while providing
metadata (artist, track title, album, etc.)
information on the radio display.
Uconnect Media Hub
1 — SD Card Port
2 — AUX Jack
3 — USB Port
257

Accessories..................241
Mopar ...................241
Adaptive Cruise Control (ACC) Off .................143, 145
On..................143, 145
Adaptive Cruise Control (ACC) (Cruise Control) ..................143
Additives, Fuel ................233
AirBag .....................96 Air Bag Operation .............97
Air Bag Warning Light ..........95
Enhanced Accident Response . . . .102
Enhanced Accident Response . . . .193
Event Data Recorder (EDR) ......193
Front Air Bag ...............96
If Deployment Occurs .........102
Knee Impact Bolsters ..........98
Maintaining Your Air Bag System . .103
Maintenance ...............103
Redundant Air Bag Warning Light . .96
Transporting Pets ............116
Air Bag Light ............56, 95, 117
Air Conditioning Filter ............44
Air Conditioning, Operating Tips ......43
Air Conditioning System ...........42Air Pressure
Tires ................... .217
Alarm Arm The System .............18
Disarm The System ............18
Security Alarm ..............57
Alarm (Security Alarm) ............18
Alarm System (Security Alarm) .......18
All Wheel Drive (AWD) ...........130
Alterations/Modifications Vehicle ....................3
Antifreeze (Engine Coolant) ........237
Anti-Lock Brake System (ABS) .......68
Anti-Lock Warning Light ...........61
Arming System (Security Alarm) ......18
Assist, Hill Start ................70
Audio Jack ..................257
Automatic Door Locks ............22
Automatic Headlights ..........30, 31
Automatic Temperature Control (ATC) . . .42
Automatic Transaxle ............128
Automatic Transmission ..........129
Adding Fluid ..............240
Fluid

Level Check ............210
Fluid Level Check ...........210 Fluid Type
................240
Auto Up Power Windows ...........44
Back-Up ...................154
Back-Up Camera ..............154
Battery ..................58, 211
Charging System Light ..........58
Belts, Seat ..................117
Blind Spot Monitoring ............79
Brake Assist System .............69
Brake Control System, Electronic .....69
Brake Fluid ..............209, 240
Brake System ................209
Fluid Check ...........209, 240
Master Cylinder .............209
Parking ..................124
Warning Light ...............56
Brake/Transmission Interlock .......129
Bulb Replacement .............160
Bulbs, Light .................118
Camera ....................154
Capacities, Fluid ..............237
Caps, Filler Fuel ................155, 188
INDEX
299

Oil (Engine)...............204
Oil (Engine) .....204, 205, 206, 207
Carbon Monoxide Warning .........116
Car Washes ..................226
Change Oil Indicator .............55
Changing A Flat Tire .........173, 216
Checking Your Vehicle For Safety . . . .116
Checks, Safety ................116
Child Restraints How To Stow An Unused ALR Seat
Belt ....................115
Child Safety Locks ..............22
Clean Air Gasoline .............232
Cleaning Wheels ..................222
Climate Control .............35, 276
Manual ...................35
Clock .....................248
Clock Setting .................248
Cold Weather Operation ..........121
Compact Spare Tire .............221
Cooling System ...............208
Coolant Capacity ............237
Inspection ................208
Selection Of Coolant
(Antifreeze) ............237, 238
Cruise Control (Speed Control) ......141Cruise Light
................64, 65
Customer Assistance ............280
Customer Programmable Features . . . .256
Daytime Running Lights ...........30
Dealer Service ................211
Defroster, Windshield ............117
Diagnostic System, Onboard ........66
Dipsticks Oil (Engine) ...............208
Disabled Vehicle Towing ..........190
Disturb ................... .267
Do Not Disturb ................278
Door Ajar ....................59
Door

Ajar Light ................59
Door Locks, Automatic ............22
Electric Brake Control System Anti-Lock Brake System .........68
Electronic Roll Mitigation .....71, 74
Electric Parking Brake ...........124
Electronic Brake Control System ......69
Electronic Speed Control (Cruise Control) ..................141
Electronic Stability Control (ESC) .....71
Electronic Throttle Control Warning Light .....................58 Emergency, In Case Of
Hazard Warning Flasher ........160
Jacking ..............173, 216
Jump Starting ..............186
Overheating ...............188
Towing ..................190
Engine ..........204, 205, 206, 207
Break-In Recommendations .....123
Checking Oil Level ...........208
Coolant (Antifreeze) ..........238
Cooling ..................208
Exhaust Gas Caution ..........116
Jump Starting ..............186
Oil .................237, 238
Oil Filler Cap ..............204
Oil Filler Cap ...............204
Oil Filler Cap .......205, 206, 207
Oil Selection ..............237
Overheating ...............188
Enhanced Accident Response Feature ...............102, 193
Ethanol ....................232
Exhaust Gas Cautions ...........116
Exhaust System ...............116
Exterior Lights ................118
INDEX
300

FiltersAir Conditioning ..............44
Engine Oil ................238
Flashers Hazard Warning .............160
Turn Signal ..............32, 64
Turn Signals ...............118
Fluid, Brake .................240
Fluid Capacities ...............237
Fluid Leaks ..................118
Fluid Level Checks Brake ...................209
Engine Oil ................208
Fluids And Lubricants ...........238
Fog Lights ........30, 31, 32, 63, 163
Fog Light Service ..............163
Fog Lights, Rear ...............163
Forward Collision Warning ..........81
Four Wheel Drive ..............130
Freeing A Stuck Vehicle ..........189
Front And Rear ParkSense System . . . .149
Front ParkSense System ..........149
Fuel ......................231
Additives .................233
Ethanol ..................232
Filler Cap (Gas Cap) ..........155
Gasoline .................231 Light
....................62
Materials Added .............233
Octane Rating ..........231, 238
Specifications ..............238
Tank Capacity ..............237
Fuses .....................164
Gas Cap (Fuel Filler Cap) .........155
Gasoline, Clean Air .............232
Gasoline (Fuel) ................231
Gear Ranges .................126
Gear Select Lever Override ........189
Glass
Cleaning ................228
Hands-Free Phone (Uconnect) ......263
Hazard Warning Flasher ..........160
Headlights .................30, 31
Automatic ..............30, 31
Delay ....................31
Time Delay ................31
Head Restraints ................25
Head Rests ...................25
Heated Mirrors .................29
Hill Descent Control .............76
Hill Descent Control Indicator .......76
Hill Start Assist ................70 Hood Release
.................47
Instrument Cluster Instrument Cluster ............55
Instrument Panel Lens Cleaning.....227
Interior Appearance Care ..........227
Intermittent Wipers (Delay Wipers) ....33
Introduction ...................1
Inverter, Power .................52
iPod/USB/MP3 Control Bluetooth Streaming Audio ......263
Jacking Instructions ............174
Jack Location ................173
Jack Operation .........173, 174, 216
Jump Starting ................186
Key Fob Arm The Alarm ..............18
Disarm The Alarm .............18
Keyless Enter-N-Go ..............19
Key, Replacement ...............15
Keys .......................13
Lane Change And Turn Signals .......32
Lane Change Assist ..............32
LaneSense ..................151
301

Lap/Shoulder Belts..............89
Latches ....................118
Hood ....................47
Leaks, Fluid .................118
Life Of Tires .................219
Liftgate ..................48, 49
Liftgate Window Wiper/Washer .......34
Light Bulbs ..................118
Lights .....................118
AirBag ................56, 95
AirBag ..................117
Brake Assist Warning ...........74
Brake Warning ...............56
Bulb Replacement ...........160
Cruise .................64, 65
Daytime Running ............30
Engine Temperature Warning .....58
Exterior ..................118
Fog .....................63
Hazard Warning Flasher ........160
Headlights .................30
Hill Descent Control Indicator .....76
Low Fuel ..................62
Malfunction Indicator
(Check Engine) ..............59
Park ....................31
Park .....................64 Rear Fog
.................163
Seat Belt Reminder ...........56
Security Alarm ..............57
Service ..................160
Tire Pressure Monitoring (TPMS) ....60
Tire Pressure Monitoring (TPMS) . . .82
Traction Control ..............74
Turn Signal ..............32, 64
Turn Signals ...............118
Warning (Instrument Cluster
Description) ................58
Locks Automatic Door ..............22
Child Protection .............22
Steering Wheel ..............17
Low Tire Pressure System ..........82
Lug Nuts ...................231
Maintenance Free Battery .........211
Maintenance Schedule ..........
.196
Malfunction

Indicator Light (Check
Engine) ...................59
Manual Transmission ........126, 210
Fluid Level Check ...........210
Lubricant Selection ..........240
Shift Speeds ..............126
Media Hub ..................273 Memory Feature (Memory Seat)
......23
Memory Seat ..................23
Memory Seats And Radio ..........23
Methanol ...................232
Methanol Fuel ................232
Mirrors .....................29
Heated ...................29
Modifications/Alterations Vehicle ....................3
Monitor, Tire Pressure System .......82
Mopar .....................241
Mopar Accessories .............241
Navigation ...............258, 276
New Vehicle Break-In Period .......123
Occupant Restraints .............87
Octane Rating, Gasoline (Fuel) . .231, 238
Oil Change Indicator .............55
Oil Change Indicator, Reset .........55
Oil, Engine ..................238
Capacity .................237
Checking .................208
Dipstick .................208
Filter ...................238
Pressure Warning Light .........57
Recommendation ...........237
INDEX
302