2018 JEEP CHEROKEE overheating

NOTE:
• It is not necessary to move the temperaturesettings for cold or hot vehicles. The system
automatically adjusts the temperature,
mode, and blower speed to provide comfort
as quickly as possible.
• The temperature can be displayed in U.S. or Metric units by selecting the US/Metric
customer-programmable feature. Refer to
the “Uconnect Settings” in “Multimedia”
in your Owner’s Manual for further
information.
To provide you with maximum comfort in the
Automatic mode during cold start-ups, the
blower fan will remain on low until the engine
warms up. The blower will increase in speed
and transition into Auto mode.
Manual Operation Override
This system offers a full complement of
manual override features. The AUTO symbol
in the front ATC display will be turned off
when the system is being used in the manual
mode.
Operating Tips
Summer Operation
The engine cooling system must be protected
with a high-quality antifreeze coolant to pro-
vide proper corrosion protection and to pro-
tect against engine overheating. OAT coolant
(conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster
performance, make sure the engine cooling sys-
tem is functioning properly and the proper
amount, type, and concentration of coolant is
used. Use of the Air Recirculation mode during
Winter months is not recommended, because it
may cause window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for about
five minutes, in fresh air with the blower set-
ting on high. This will ensure adequate system
lubrication to minimize the possibility of com-
pressor damage when the system is started
again.
Window Fogging
Vehicle windows tend to fog on the inside in
mild, rainy, and/or humid weather. To clear
the windows, select Defrost or Mix mode and
increase the front blower speed. Do not use
the Recirculation mode without A/C for long
periods, as fogging may occur.
CAUTION!
Failure to follow these cautions can cause
damage to the heating elements:
•
Use care when washing the inside of the
rear window. Do not use abrasive window
cleaners on the interior surface of the
window. Use a soft cloth and a mild
washing solution, wiping parallel to the
heating elements. Labels can be peeled
off after soaking with warm water.
• Do not use scrapers, sharp instru- ments, or abrasive window cleaners on
the interior surface of the window.
• Keep all objects a safe distance from
the window.
43

The starter is allowed to crank for up to
30-second intervals. Waiting a few minutes
between such intervals will protect the starter
from overheating.
WARNING!
• Before exiting a vehicle, always come toa complete stop, then shift the auto-
matic transmission into PARK and apply
the parking brake.
• Always make sure the keyless ignition
node is in the OFF mode, key fob is
removed from the vehicle and vehicle is
locked.
• Never leave children alone in a vehicle,
or with access to an unlocked vehicle.
Leaving children in a vehicle unattended
is dangerous for a number of reasons. A
child or others could be seriously or
fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the gear selector.
• Do not leave the key fob in or near the
vehicle, or in a location accessible to
children, and do not leave the ignition of
a vehicle equipped with Keyless Enter-
WARNING!
N-Go in the ACC or ON/RUN mode. A
child could operate power windows,
other controls, or move the vehicle.
• Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury
or death.
NOTE:
Engine start up in very low ambient tempera-
ture could result in evident white smoke. This
condition will disappear as the engine warms
up.
CAUTION!
The engine is allowed to crank as long as
30 seconds. If the engine fails to start
during this period, please wait at least two
minutes for the starter to cool before re-
peating start procedure.
Battery Blanket Usage
A battery loses 60% of its cranking power as
the battery temperature decreases to 0°F
(-18°C). For the same decrease in tempera-
ture, the engine requires twice as much
power to crank at the same RPM. The use of
battery blankets will greatly increase starting
capability at low temperatures. Suitable bat-
tery blankets are available from your autho-
rized Mopar dealer.
Normal Starting Procedure — Keyless
Enter-N-Go
Observe the instrument panel cluster lights
when starting the engine.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or press-
ing the accelerator pedal.
1. Always apply the parking brake.
2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once.STARTING AND OPERATING
122

CAUTION!
Accessories plugged into the vehicle
power outlets draw power from the vehi-
cle’s battery, even when not in use (i.e.,
cellular devices, etc.). Eventually, if
plugged in long enough without engine
operation, the vehicle’s battery will dis-
charge sufficiently to degrade battery life
and/or prevent the engine from starting.
REFUELING IN EMERGENCY
Emergency Fuel Filler Door Release
If you are unable to open the fuel filler door,
use the fuel filler door emergency release.
1. Open the liftgate.
2. Remove access door located on right inte-rior trim panel for release cable with the
tip of your key.
3. Grab the release cable tether and pull up to release the fuel filler door.
IF YOUR ENGINE
OVERHEATS
In any of the following situations, you can
reduce the potential for overheating your en-
gine by taking the appropriate action.
• On the highways — slow down.
• In city traffic — while stopped, place the
transmission in NEUTRAL, but do not in-
crease engine idle speed.
CAUTION!
Driving with a hot cooling system could
damage your vehicle. If the temperature
gauge reads “H,” pull over and stop the
vehicle. Idle the vehicle with the air con-
ditioner turned off until the pointer drops
back into the normal range. If the pointer
remains on the “H” and you hear continu-
ous chimes, turn the engine off immedi-
ately and call for service. NOTE:
There are steps that you can take to slow
down an impending overheat condition:
• If your Air Conditioner (A/C) is on, turn it
off. The A/C system adds heat to the engine
cooling system and turning the A/C off can
help remove this heat.
• You can also turn the temperature control to maximum heat, the mode control to floor
and the blower control to high. This allows
the heater core to act as a supplement to
the radiator and aids in removing heat from
the engine 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 try to open a cooling system
pressure cap when the radiator or coolant
bottle is hot.
IN CASE OF EMERGENCY
188

GEAR SELECTOR OVERRIDE
If a malfunction occurs and the gear selector
cannot be moved out of the PARK position,
you can use the following procedure to tem-
porarily move the gear selector:
1. Turn the engine OFF.
2. Apply the parking brake.
3. Using a screwdriver or similar tool, care-fully separate the shifter bezel and boot
assembly from the center console, and
raise it up to access the gear selector
mechanism.
4. Press and maintain firm pressure on the brake pedal.
5. Insert a small screwdriver or similar tool down into the gear selector override ac-
cess hole (at the left front corner of the
gear selector assembly), and push and
hold the override release lever down.
6. Move the gear selector to the NEUTRAL position.
7. The vehicle may then be started in NEUTRAL.
8. Reinstall the gear selector boot.
FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or
snow, it can often be moved using a rocking
motion. Turn the steering wheel right and left
to clear the area around the front wheels. For
vehicles with automatic transmission, push
and hold the lock button on the gear selector.
Then shift back and forth between DRIVE and
REVERSE (with automatic transmission) or
SECOND GEAR and REVERSE (with manual
transmission), while gently pressing the ac-
celerator.
NOTE:
For vehicles with automatic transmission:
Shifts between DRIVE and REVERSE can
only be achieved at wheel speeds of 5 mph
(8 km/h) or less. Whenever the transmission
remains in NEUTRAL for more than two sec-
onds, you must press the brake pedal to
engage DRIVE or REVERSE.
Use the least amount of accelerator pedal
pressure that will maintain the rocking mo-
tion without spinning the wheels or racing the
engine.
CAUTION!
• Racing the engine or spinning the wheels may lead to transmission over-
heating and failure. Allow the engine to
idle with the transmission in NEUTRAL
for at least one minute after every five
rocking-motion cycles. This will mini-
mize overheating and reduce the risk of
clutch or transmission failure during
prolonged efforts to free a stuck vehicle.
• When “rocking” a stuck vehicle by shift-
ing between DRIVE/SECOND GEAR and
REVERSE, do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the
wheels too fast may lead to transmission
overheating and failure. It can also dam-
age the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
189

RAISING THE VEHICLE
In the case where it is necessary to raise the
vehicle, go to an authorized dealer or service
station.
TIRES
Tires — General Information
Tire Pressure
Proper tire inflation pressure is essential to
the safe and satisfactory operation of your
vehicle. Four primary areas are affected by
improper tire pressure:
• Safety and Vehicle Stability
• Economy
• Tread Wear
• Ride ComfortSafety
WARNING!
• Improperly inflated tires are dangerous
and can cause collisions.
• Underinflation increases tire flexing and
can result in overheating and tire failure.
• Overinflation reduces a tire's ability to cushion shock. Objects on the road and
chuckholes can cause damage that re-
sult in tire failure.
• Overinflated or underinflated tires can
affect vehicle handling and can fail sud-
denly, resulting in loss of vehicle con-
trol.
• Unequal tire pressures can cause steer-
ing problems. You could lose control of
your vehicle.
• Unequal tire pressures from one side of
the vehicle to the other can cause the
vehicle to drift to the right or left.
• Always drive with each tire inflated to
the recommended cold tire inflation
pressure. Both under-inflation and over-inflation affect
the stability of the vehicle and can produce a
feeling of sluggish response or over respon-
siveness in the steering.
NOTE:
• Unequal tire pressures from side to side
may cause erratic and unpredictable steer-
ing response.
• Unequal tire pressure from side to side may cause the vehicle to drift left or right.
Fuel Economy
Underinflated tires will increase tire rolling
resistance resulting in higher fuel consump-
tion.
Tread Wear
Improper cold tire inflation pressures can
cause abnormal wear patterns and reduced
tread life, resulting in the need for earlier tire
replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfort-
able ride. Over-inflation produces a jarring
and uncomfortable ride.
SERVICING AND MAINTENANCE
216

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

Viscosity.................237
Oil Pressure Light ...............57
Onboard Diagnostic System .........66
Operating Precautions ............66
Operator Manual Owner's Manual ..............2
Outlet Power ...................49
Overheating, Engine ............188
Owner’s Manual (Operator Manual) .....2
Parking Brake ................124
ParkSense Active Park Assist .......150
ParkSense System, Front And Rear . . .149
ParkSense System, Rear ......147, 149
Pets ......................116
Phone, Hands-Free (Uconnect) ......263
Phone (Pairing) ............263, 272
Phone (Uconnect) ..........263, 274
Power Glass Sunroof ...............45
Inverter ..................52
Outlet (Auxiliary Electrical Outlet) . .49
Windows ..................44
Power Shade Open ....................46
Pregnant Women And Seat Belts ......93Preparation For Jacking
..........174
Pretensioners Seat Belts .................93
Radial Ply Tires ...............218
Radio .....................273
Presets ...........249, 255, 256
Radio Operation ...............249
Radio Screens ................253
Radio (Sound Systems) ..........249
Rain Sensitive Wiper System ........33
Rear Camera .................154
Rear Cross Path ................79
Rear ParkSense System . . .147, 149, 154
Rear Wiper/Washer ..............34
Recreational Towing .............157
Release, Hood .................47
Reminder, Seat Belt .............88
Remote Control Starting System .............17
Remote Keyless Entry Arm The Alarm ..............18
Disarm The Alarm .............18
Remote

Starting System ...........17
Replacement Keys ..............15
Replacement Tires .............219
Restraint, Head ................25 Roll Over Warning
................2
Rotation, Tires ................224
Safety Checks Inside Vehicle .......117
Safety Checks Outside Vehicle ......118
Safety, Exhaust Gas .............116
Safety Tips ..................116
Schedule, Maintenance ..........196
SD Card Port .................257
Seat Belt Adjustable Upper Shoulder
Belt Anchorage ..............92
Automatic Locking Retractor (ALR) . .93
Energy Management Feature ......93
Lap/Shoulder Belt Operation ......91
Lap/Shoulder Belts ............89
Pregnant Women .............93
Seat Belt Pretensioner .........93
Seat Belt Reminder ............88
Seat Belt Maintenance ...........227
Seat Belt Reminder ..............88
Seat Belts ................88, 117
Adjustable Shoulder Belt ........92
Adjustable Upper Shoulder
Anchorage .................92
Front Seat .................88
Front Seat ..............89, 91
303