check engine light JEEP CHEROKEE 2023 Owner's Manual

SERVICING AND MAINTENANCE225
Make sure that the coolant expansion bottle overflow
hoses are not kinked or obstructed.
 Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
 Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory engine cooling performance,
poor gas mileage, and increased emissions.
BRAKE SYSTEM
In order to ensure brake system performance, all brake
system components should be inspected periodically.
Refer to the Maintenance Plan for the proper
maintenance intervals
Úpage 209.
Fluid Level Check — Brake Master Cylinder
The fluid level of the brake 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 cylinder 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 system for leaks. For further information
Úpage 256.
AUTOMATIC TRANSMISSION
Special Additives
It is strongly recommended against using any special
additives in the transmission. Automatic Transmission
Fluid (ATF) is an engineered product and its performance
may be impaired by supplemental additives. Therefore, do
not add any fluid additives to the transmission. Avoid
using transmission sealers as they may adversely affect
seals.
Fluid Level Check
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required; therefore the
transmission has no dipstick. An authorized dealer can
check your transmission fluid level using special service
tools. If you notice fluid leakage or transmission
malfunction, visit an authorized dealer immediately to
have the transmission fluid level checked. Operating the
vehicle with an improper fluid level can cause severe
transmission damage.
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
temperatures, excessive lining wear, and possible brake
damage. You would not have your full braking capacity
in an emergency.
WARNING!

Use only manufacturer's recommended brake fluid.
For further information Úpage 256. Using the wrong
type of brake fluid can severely damage your brake
system and/or impair its performance. The proper
type of brake fluid for your vehicle is also identified
on the original factory installed hydraulic master
cylinder reservoir.
 To avoid contamination from foreign matter or mois -
ture, use only new brake fluid or fluid that has been
in a tightly closed container. Keep the master
cylinder reservoir cap secured at all times. Brake
fluid in a open container absorbs moisture from the
air resulting in a lower boiling point. This may cause
it to boil unexpectedly during hard or prolonged
braking, resulting in sudden brake failure. This could
result in a collision.
 Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing the
brake fluid to catch fire. Brake fluid can also damage
painted and vinyl surfaces, care should be taken to
avoid its contact with these surfaces.
 Do not allow petroleum-based fluid to contaminate
the brake fluid. Brake seal components could be
damaged, causing partial or complete brake failure.
This could result in a collision.
CAUTION!
Do not use chemical flushes in your transmission as the
chemicals can damage your transmission components.
Such damage is not covered by the New Vehicle Limited
Warranty.
8

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254TECHNICAL SPECIFICATIONS
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).

Torque Patterns

After 25 miles (40 km), check the lug nut/bolt torque to be
sure that all the lug nuts/bolts are properly tightened.
FUEL REQUIREMENTS
While operating on gasoline with the required octane
number, hearing a light knocking sound from the engine is
not a cause for concern. However, if the engine is heard
making a heavy knocking sound, see a dealer
immediately. Use of gasoline with a lower than recommended octane number can cause engine failure
and may void or not be covered by the New Vehicle Limited
Warranty.
Poor quality gasoline can cause problems such as hard
starting, stalling, and hesitations. If you experience these
symptoms, try another brand of gasoline before
considering service for the vehicle.
2.0L ENGINE
This engine is designed to meet all emission
requirements, and provide satisfactory fuel
economy and performance, when using
unleaded regular gasoline having an octane
rating of 87, as specified by the (R+M)/2 method. The use
of 91 or higher octane premium gasoline will allow these
engines to operate to optimal performance. This increase
in performance is most noticeable in hot weather or under
heavy load conditions, such as while towing.
2.4L ENGINE
This engine is designed to meet all emission
regulations and provide optimum fuel economy
and performance when using unleaded regular
gasoline having a posted octane number of 87
as specified by the (R+M)/2 method. The use of higher
octane premium gasoline is not required, as it will not
provide any benefit over regular gasoline in these engines.
REFORMULATED GASOLINE
Many areas of the country require the use of
cleaner-burning gasoline referred to as “reformulated
gasoline”. Reformulated gasoline contains oxygenates
and are specifically blended to reduce vehicle emissions
and improve air quality.
The use of reformulated gasoline is recommended.
Properly blended reformulated gasoline will provide
improved performance and durability of engine and fuel
system components.
GASOLINE/OXYGENATE BLENDS
Some fuel suppliers blend unleaded gasoline with
oxygenates such as ethanol.
Problems that result from using gasoline containing more
than 15% ethanol (E-15) or gasoline containing methanol
are not the responsibility of the manufacturer and may
void the New Vehicle Limited Warranty.
WARNING!
To avoid the risk of forcing the vehicle off the jack, do
not tighten the lug nuts/bolts fully until the vehicle has
been lowered. Failure to follow this warning may result
in personal injury.
CAUTION!
DO NOT use E-85, gasoline containing methanol, or
gasoline containing more than 15% ethanol (E-15). Use
of these blends may result in starting and drivability
problems, damage critical fuel system components,
cause emissions to exceed the applicable standard,
and/or cause the Malfunction Indicator Light to
illuminate. Please observe pump labels as they should
clearly communicate if a fuel contains greater than
15% ethanol (E-15).

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263
INDEX
AAbout Your Brakes ....................................................... 253
Adaptive Cruise Control (ACC) (Cruise Control) ...... 90, 92
Adding Engine Coolant (Antifreeze) ............................ 223
Adding Fuel................................................................... 113
Additives, Fuel .............................................................. 255
Air Bag........................................................................... 167 Air Bag Operation.................................................... 168
Air Bag Warning Light .................................... 166
, 169
Driver Knee Air Bag ................................................ 172
Enhanced Accident Response ...................... 175
, 207
Event Data Recorder (EDR).................................... 207 Front Air Bag .................................................. 167
, 169
If Deployment Occurs ............................................. 174
Knee Impact Bolsters ............................................. 172
Maintaining Your Air Bag System .......................... 175
Maintenance ........................................................... 175
Redundant Air Bag Warning Light ......................... 167
Transporting Pets.................................................... 186
Air Bag Light ................................................. 68
, 166, 187
Air Cleaner, Engine (Engine Air Cleaner Filter) ........... 216
Air Conditioner Maintenance ...................................... 217
Air Conditioner Refrigerant ................................. 217
, 218
Air Conditioner System ................................................ 217
Air Conditioning Filter ........................................... 48
, 218
Air Conditioning, Operating Tips ..................................... 48 Air Filter......................................................................... 216
Air Pressure Tires ......................................................................... 241 Alarm
Arm The System......................................................... 20
Disarm The System ................................................... 20
Security Alarm..................................................... 20
, 70
All Wheel Drive (AWD)..................................................... 85 Antifreeze (Engine Coolant) ............................... 223
, 256
Disposal ...................................................................224
Anti-Lock Brake System (ABS) ..................................... 143
Anti-Lock Warning Light.................................................. 70
Assist, Hill Start ............................................................. 148
Audio Systems (Radio) ................................................. 126
Auto Down Power Windows............................................ 53
Auto Up Power Windows ................................................ 53
Automatic Climate Controls ........................................... 45
Automatic Dimming Mirror ............................................. 34 Automatic Door Locks ............................................. 23
, 24
Automatic Headlights ..................................................... 40 Automatic High Beams ................................................... 40
Automatic Temperature Control (ATC) .......................... 48
Automatic Transaxle ....................................................... 81
Automatic Transmission ................................................. 81 Adding Fluid ............................................................. 226
Fluid And Filter Change ...........................................226
Fluid Change ............................................................226Fluid Level Check ....................................................225Fluid Type ................................................................. 226
Special Additives ..................................................... 225Torque Converter....................................................... 85
Autostick.......................................................................... 84 AUX Cord.......................................................................... 50Auxiliary (Power Outlet) .................................................. 51
BBattery.................................................................... 69, 214
Keyless Key Fob Replacement................................. 14
Battery Saver Feature .................................................... 42
Belts, Seat..................................................................... 187
Blind Spot Monitoring .................................................. 150
Body Mechanism Lubrication ...................................... 219
Bodywork ...................................................................... 250
B-Pillar Location ........................................................... 238
Brake Assist System............................................ 144
, 154
Brake Control System .................................................. 143
Brake Fluid.................................................................... 225
Brake System ......................................................225
, 253
Anti-Lock (ABS) ........................................................ 253 Fluid Check .............................................................. 225Master Cylinder ....................................................... 225Parking....................................................................... 78
Warning Light ............................................................ 68
Brake/Transmission Interlock ....................................... 81
Brightness, Interior Lights.............................................. 42
Bulb Replacement ........................................................ 233
Bulbs, Light ................................................................... 188
CCamera, Rear................................................................ 112
Capacities, Fluid ........................................................... 256
Caps, Filler Oil (Engine) ..................................................... 212
, 213
Radiator (Coolant Pressure) ................................... 224
Car Washes................................................................... 250
Carbon Monoxide Warning .......................................... 18811

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264
Care And Maintenance ................................................ 250
Cargo Area Cover ............................................................59
Cargo Compartment ....................................................... 59
Cargo Load Floor ............................................................. 59
Cargo Tie-Downs ............................................................. 59
Cellular Phone .............................................................. 140
Center Seat Storage Compartment ...............................50
Certification Label ........................................................ 113
Changing A Flat Tire ..................................................... 191
Chart, Tire Sizing .......................................................... 236
Chassis Fluids And Lubricants .................................... 257
Check Engine Light (Malfunction Indicator Light) .........75
Checking Your Vehicle For Safety ............................... 186
Checks, Safety.............................................................. 186
Child Restraint.............................................................. 176
Child Restraints
Booster Seats.......................................................... 178
How To Stow An Unused ALR Seat Belt................. 183
Infant And Child Restraints .................................... 177Lower Anchors And Tethers For Children .............. 179Older Children And Child Restraints ...................... 177
Seating Positions .................................................... 178
Clean Air Gasoline........................................................ 254
Cleaning Wheels ..................................................................... 245
Climate Control ............................................................... 45
Cold Weather Operation .................................................77
Compact Spare Tire ..................................................... 245
Console Storage ....................................................................... 50
Contract, Service .......................................................... 260
Cooling Pressure Cap (Radiator Cap) ......................... 224
Cooling System............................................................. 222 Adding Coolant (Antifreeze) ................................... 223Coolant Level .......................................................... 224 Cooling Capacity ...................................................... 256
Disposal Of Used Coolant ....................................... 224
Drain, Flush, And Refill............................................223
Inspection ...................................................... 223
, 224
Points To Remember............................................... 224
Pressure Cap ...........................................................224
Radiator Cap ............................................................224 Selection Of Coolant (Antifreeze) ...........................223
Corrosion Protection ..................................................... 250
Cruise Control (Speed Control) ...................................... 90 Cruise Light .............................................................. 74
, 75
Customer Assistance ....................................................258
Cybersecurity ................................................................ 126
DDaytime Running Lights ................................................. 40
Defroster, Windshield ...................................................187
De-Icer, Remote Start ..................................................... 19 Diagnostic System, Onboard.......................................... 75
Dipsticks Oil (Engine)............................................................... 214
Disable Vehicle Towing................................................. 205
Disposal Antifreeze (Engine Coolant) ....................................224
Door Ajar.......................................................................... 69 Door Ajar Light ................................................................ 69
Door Locks Automatic ............................................................ 23
, 24
Doors ............................................................................... 20
Driver Memory Settings .................................................. 26
Driver’s Seat Back Tilt .................................................... 28 Driving ...........................................................................123
EEasy Entry Seats ............................................................. 31
Electric Brake Control System ..................................... 143 Anti-Lock Brake System .......................................... 143Electronic Roll Mitigation ...............................144
, 150
Electric Parking Brake.................................................... 78
Electrical Power Outlets ................................................. 51 Electronic Stability Control (ESC) ................................ 145
Electronic Throttle Control Warning Light ..................... 69
Emergency SOS Emergency Call................................................ 189
Emergency Gas Can Refueling .................................... 202
Emergency, In Case Of Gear Selector Override ........................................... 203
Hazard Warning Flasher ......................................... 189Jacking ..................................................................... 191Jump Starting .......................................................... 200
Tow Hooks ............................................................... 206
Emission Control System Maintenance ........................ 75
Engine ..................................................................212
, 213
Air Cleaner ............................................................... 216 Break-In Recommendations..................................... 78
Checking Oil Level ................................................... 214
Cooling ..................................................................... 222 Exhaust Gas Caution............................................... 188
Fails To Start ............................................................. 78
Flooded, Starting....................................................... 78
Fuel Requirements.................................................. 254
Jump Starting .......................................................... 200
Oil ............................................................................. 215 Oil Filler Cap ...................................................212
, 213
Oil Filter.................................................................... 216
Oil Reset .................................................................... 64

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265
Oil Selection ............................................................ 215
Oil Synthetic ............................................................ 215
Overheating ............................................................. 203
Engine Fluids And Lubricants...................................... 256
Enhanced Accident Response Feature ............. 175
, 207
Ethanol.......................................................................... 254
Exhaust Gas Cautions.................................................. 188
Exhaust System ............................................................ 222
Exterior Lights........................................................ 39
, 188
FFilters Air Cleaner ............................................................... 216Air Conditioning................................................ 48
, 218
Engine Oil ................................................................ 216 Engine Oil Disposal ................................................. 215
Flashers Hazard Warning ...................................................... 189
Turn Signals ..................................................... 74
, 188
Flash-To-Pass ..................................................................40
Flat Tire Changing ............................................... 235
, 244
Flat Tire Stowage ................................................ 235, 244
Flooded Engine Starting .................................................78
Fluid Capacities ............................................................ 256
Fluid Leaks ................................................................... 188
Fluid Level Checks Brake ....................................................................... 225Engine Oil ................................................................ 214
Fob, Key ...........................................................................13
Fog Lights ........................................................................41 Fold-Flat Seats ................................................................28Folding Rear Seats..........................................................29Forward Collision Warning ........................................... 154
Four Wheel Drive............................................................. 85 Freeing A Stuck Vehicle................................................ 204
Fuel
Additives...................................................................255Clean Air ...................................................................254Ethanol .....................................................................254
Light............................................................................ 71
Materials Added ...................................................... 255
Methanol .................................................................. 254
Tank Capacity .......................................................... 256
Fueling ...........................................................................113
Fuses .............................................................................226
GGarage Door Opener (HomeLink®) ............................... 35 Gasoline, Clean Air ....................................................... 254
Gasoline, Reformulated ............................................... 254
Gear Ranges ................................................................... 82Gear Selector Override ................................................. 203
Glass Cleaning .............................................................. 252
Gross Axle Weight Rating ............................................. 115
Gross Combination Weight Rating............................... 115
Gross Trailer Weight ..................................................... 115
Gross Vehicle Weight Rating ........................................ 114
GVWR.............................................................................113
HHazard Warning Flashers ............................................. 189
Head Restraint Removal ................................................ 32
Head Restraints .............................................................. 32
Head Rests...................................................................... 32
Headlights ....................................................................... 39 Automatic ................................................................... 40
Automatic High Beam ............................................... 40 Cleaning ................................................................... 250
High Beam .......................................................... 39
, 40
High Beam/Low Beam Select Switch ...................... 40
On With Wipers.......................................................... 41
Passing ............................................................... 39
, 40
Switch ........................................................................ 39
Time Delay ................................................................. 41
Heated Mirrors ............................................................... 35 Heated Seats .................................................................. 31
Heated Steering Wheel .................................................. 24
Hill Descent Control ..................................................... 146
Hill Descent Control Indicator...................................... 146
Hill Start Assist ............................................................. 148
Hitches Trailer Towing .......................................................... 116
HomeLink® (Garage Door Opener)............................... 35
Hood Prop ....................................................................... 56
Hood Release ................................................................. 56
IIgnition ............................................................................ 16 Switch ........................................................................ 16
Ignition Pak Interlock ..................................................... 81
Illuminated Entry ............................................................ 43
Indicator light Blue ............................................................................ 75
Green ......................................................................... 73
White .......................................................................... 74
Yellow......................................................................... 73
Inside Rearview Mirror .......................................... 34
, 189
Instrument Cluster Descriptions

S
.......................................... 61, 63, 74
Display ....................................................................... 63
Display Controls ........................................................ 6311

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266
Engine Oil Reset.........................................................64
Menu Items .........................................................64, 67
Instrument Panel Lens Cleaning ................................. 251
Interior Appearance Care ............................................ 251
Interior Lights ..................................................................42
Inverter Power ..........................................................................52
JJack Location................................................................ 191
Jack Operation ............................................................. 191
Jacking And Tire Changing .......................................... 191
Jump Starting ............................................................... 200
KKey FobArm The System .........................................................20
Disarm The System....................................................20
Key Fob Battery Service (Remote Keyless Entry) .........14
Key Fob Programming (Remote Keyless Entry) ............ 15
Keyless Enter 'n Go™ ...................................................... 22 Passive Entry .............................................................. 22
Keys .................................................................................13 Replacement .............................................................. 15
LLane Change Assist ........................................................42
LaneSense.................................................................... 109
Lap/Shoulder Belts ...................................................... 160
Latches ......................................................................... 188 Hood ...........................................................................56
Leaks, Fluid .................................................................. 188
Life Of Tires .................................................................. 243 Liftgate ............................................................................ 57
Closing........................................................................ 58
Hands-Free ................................................................ 58
Opening ...................................................................... 57
Light Bulbs ....................................................................188
Lights .............................................................................188 Air Bag ..................................................... 68
, 166, 187
Automatic Headlights ................................................ 40
Automatic High Beam ............................................... 40
Brake Assist Warning .............................................. 146 Brake Warning ........................................................... 68
Bulb Replacement...................................................233
Cruise .................................................................. 74
, 75
Daytime Running ....................................................... 40
Engine Temperature Warning................................... 69
Exterior ..............................................................39
, 188
Fog....................................................................... 41, 74
High Beam ................................................... 39, 40, 75
High Beam/Low Beam Select .................................. 40
Hill Descent Control Indicator................................. 146
Illuminated Entry ....................................................... 43
Intensity Control ........................................................ 42
Interior........................................................................ 42
LaneSense .......................................................... 71
, 74
Lights On Reminder................................................... 41
Low Fuel ..................................................................... 71
Malfunction Indicator (Check Engine)...................... 71
Park ............................................................................ 74
Passing....................................................................... 40
Seat Belt Reminder ................................................... 68
Security Alarm............................................................ 70
Service .....................................................................233
Tire Pressure Monitoring (TPMS).....................72
, 155
Traction Control ....................................................... 146 Turn Signals............................................... 42
, 74, 188
Vanity Mirror .............................................................. 34
Load Shed Battery Saver Mode..................................... 67
Load Shed Battery Saver On ......................................... 67 Load Shed Electrical Load Reduction ........................... 67Load Shed Intelligent Battery Sensor ........................... 67Loading Vehicle ............................................................ 113 Tires ......................................................................... 238
Locks Automatic Door .................................................. 23
, 24
Child Protection ......................................................... 24
Power Door ................................................................ 21
Low Tire Pressure System............................................ 155
Lubrication, Body.......................................................... 219
Lug Nuts/Bolts ............................................................. 253
Luggage Carrier .............................................................. 60
MMaintenance................................................................... 56
Maintenance Free Battery ........................................... 214
Maintenance Schedule ................................................ 208
Malfunction Indicator Light (Check Engine) .......... 71
, 75
Manual Service ..................................................................... 261
Media Hub ...................................................................... 50 Memory Feature (Memory Seats).................................. 26Methanol ....................................................................... 254
Mirrors ............................................................................. 34 Heated ....................................................................... 35
Outside....................................................................... 34
Power ......................................................................... 35
Rearview ........................................................... 34
, 189
Vanity ......................................................................... 34

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267
Modifications/AlterationsVehicle .......................................................................... 8
Monitor, Tire Pressure System .................................... 155
Mopar Parts .................................................................. 260
MP3 Control ....................................................................50
Multi-Function Control Lever ..........................................39
NNew Vehicle Break-In Period ..........................................78
OOccupant Restraints .................................................... 159
Off Road Pages ............................................................ 141 Accessory Gauges................................................... 142
Drivetrain................................................................. 141
Pitch And Roll .......................................................... 142
Status Bar ............................................................... 141
Off-Road Pages Selec-Terrain ........................................................... 142
Oil Filter, Change .......................................................... 216
Oil Filter, Selection ....................................................... 216
Oil Life Reset — If Equipped

S
..................................... 64
Oil Pressure Light ............................................................69
Oil Reset ..........................................................................64
Oil, Engine..................................................................... 215 Capacity ................................................................... 256
Checking .................................................................. 214
Dipstick.................................................................... 214
Disposal................................................................... 215
Filter......................................................................... 216
Filter Disposal ......................................................... 215Identification Logo .................................................. 215Materials Added To................................................. 215Pressure Warning Light ............................................. 69 Recommendation ....................................................215
Synthetic .................................................................. 215
Onboard Diagnostic System........................................... 75
Operating Precautions.................................................... 75 Operator Manual Owner's Manual ....................................................... 261
Outside Rearview Mirrors............................................... 34
Overheating, Engine ..................................................... 203
PPaddle Shifters ............................................................... 84
Paint Care...................................................................... 250
Parking Brake ................................................................. 78
ParkSense Front And Rear........................................................... 99
ParkSense Active Park Assist ...................................... 106
ParkSense System, Rear................................................ 99
Passive Entry................................................................... 22 Pets ................................................................................ 186
Pinch Protection.............................................................. 56
Placard, Tire And Loading Information ........................ 238
Power Brakes ...................................................................... 253
Door Locks ................................................................. 21
Inverter ....................................................................... 52
Mirrors ........................................................................ 35
Outlet (Auxiliary Electrical Outlet) ............................. 51
Windows..................................................................... 53
Power Seats Down .......................................................................... 30
Forward ...................................................................... 30
Rearward.................................................................... 30
Up ............................................................................... 30
Pregnant Women And Seat Belts ................................ 165 Preparation For Jacking ............................................... 191
Pressure Washing ........................................................ 215
Pretensioners
Seat Belts ................................................................ 165
RRadial Ply Tires ............................................................. 242
Radiator Cap (Coolant Pressure Cap) ......................... 224
RadioOff-Road Pages ....................................................... 141
Radio Operation ........................................................... 140
Radio Remote Controls ................................................ 140
Rain Sensitive Wiper System......................................... 44 Rear Camera................................................................. 112
Rear Cross Path............................................................ 153
Rear ParkSense System ................................................ 99Rear Seats, Folding ........................................................ 29Rear Wiper/Washer ....................................................... 45Recreational Towing ..................................................... 120 Shifting Into Power Transfer Unit Neutral (N)........ 122
Shifting Into Transfer Case Neutral (N) ................. 122
Shifting Out Of Power Transfer Unit Neutral (N) ... 123
Shifting Out Of Transfer Case Neutral (N) ............. 123
Reformulated Gasoline ................................................ 254
Refrigerant .................................................................... 218
Release, Hood ................................................................ 56
Reminder, Lights On....................................................... 41 Reminder, Seat Belt ..................................................... 159
Remote Control Starting System ......................................................... 18
Remote Keyless Entry .................................................... 14 Arm The Alarm ........................................................... 20
Disarm The Alarm ..................................................... 20
Programming Additional Key Fobs ........................... 15
11

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