cooling JEEP CHEROKEE 2021 Owner handbook (in English)

10
IF YOUR ENGINE OVERHEATS ............... 212
GEAR SELECTOR OVERRIDE .................. 213FREEING A STUCK VEHICLE .................. 214TOWING A DISABLED VEHICLE ............. 215
Without The Key Fob .................... 216
Front-Wheel Drive (FWD) Models .... 216
4x4 Models .................................. 216
Recovery Strap — If Equipped ....... 217
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS) .................................. 217
EVENT DATA RECORDER (EDR) .............. 217
SERVICING AND MAINTENANCE
SCHEDULED SERVICING ....................... 218
Scheduled Servicing —
Gasoline Engine .......................... 218 Scheduled Servicing —
Diesel Engine ............................... 224
ENGINE COMPARTMENT ....................... 229
2.0L Engine ................................ 229
2.4L Engine ................................ 230
3.2L Engine ................................ 231
2.2L Diesel Engine ...................... 232
Checking Oil Level ........................ 233
Cooling System ............................ 234
Adding Washer Fluid .................... 234
Brake System .............................. 234 Manual Transmission —
If Equipped ................................. 236 Automatic Transmission —
If Equipped ................................. 236 Maintenance-Free Battery ............ 236
Pressure Washing ......................... 237
DEALER SERVICE ................................237
Windshield Wiper Blades ............. 237
RAISING THE VEHICLE ..........................241
TIRES .................................................241
Tires — General Information ........ 241
Tire Types ................................... 246
Spare Tires — If Equipped ........... 246
Wheel And Wheel Trim Care ......... 248
Tire Chains And Traction
Devices ...................................... 249 Tire Rotation Recommendations .... 250
STORING THE VEHICLE .........................251BODYWORK .........................................252
Preserving The Bodywork .............. 252
INTERIORS .........................................253
Seats And Fabric Parts ................. 253
Plastic And Coated Parts............... 254
Leather Parts ............................... 254
Glass Surfaces ............................ 254
TECHNICAL SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER........255BRAKE SYSTEM ...................................255
WHEEL AND TIRE TORQUE
SPECIFICATIONS ..................................256
Torque Specifications ....................256
WHEELS ..............................................256
WEIGHTS.............................................256
FUEL REQUIREMENTS —
GASOLINE ENGINES ..............................257
2.0L Engine .................................257
2.4L And 3.2L Engines .................257
Materials Added To Fuel ................257
Fuel Icon Identification Compliant
To EN16942 ................................257
FUEL REQUIREMENTS —
DIESEL ENGINE ....................................259
Fuel Icon Identification Compliant
To EN16942 ................................259
FLUID CAPACITIES ..............................261
FLUIDS AND LUBRICANTS .....................262
Engine .........................................262
Chassis ........................................265
FUEL CONSUMPTION AND
CO
2 EMISSIONS ..................................266
MOPAR ACCESSORIES .........................266
Authentic Accessories By Mopar .....266
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45
Climate Control Functions
A/C (Air Conditioning)
The Air Conditioning (A/C) button allows the
operator to manually activate or deactivate
the air conditioning system. When the air
conditioning system is turned on, cool dehu-
midified air will flow through the outlets into
the cabin. For improved fuel economy, press
the A/C button to turn off the air conditioning
and manually adjust the blower and airflow
mode settings. Also, make sure to select only
Panel, Bi-Level, or Floor modes.
NOTE:
For Manual Climate Controls, if the system
is in Mix, Floor or Defrost Mode, the A/C
can be turned off, but the A/C system shall
remain active to prevent fogging of the
windows.
If fog or mist appears on the windshield or
side glass, select Defrost mode, and
increase blower speed if needed.

If your air conditioning performance seems
lower than expected, check the front of the A/C
condenser (located in front of the radiator), for
an accumulation of dirt or insects. Clean with a
gentle water spray from the front of the radiator
and through the condenser.
MAX A/C
MAX A/C sets the control for maximum
cooling performance.

Press and release to toggle between MAX A/C
and the prior settings. The button illuminates
when MAX A/C is on.
In MAX A/C, the blower level and mode position
can be adjusted to desired user settings.
Pressing other settings will cause the MAX A/C
operation to switch to the selected setting and
MAX A/C to exit.

Recirculation
In cold weather, use of Recirculation mode
may lead to excessive window fogging. The
Recirculation feature may be unavailable
(button on the touchscreen greyed out) if
conditions exist that could create fogging on
the inside of the windshield.
Automatic Temperature Control (ATC)
Automatic Operation
1. Push the AUTO button on the faceplate,
or the AUTO button on the touchscreen
on the Automatic Temperature Control
(ATC) Panel.
2. Next, adjust the temperature that you would like the system to maintain by
adjusting the driver and passenger
temperature control buttons. Once the
desired temperature is displayed, the
system will achieve and automatically
maintain that comfort level.
3. When the system is set up for your comfort level, it is not necessary to
change the settings. You will experience
the greatest efficiency by simply allowing
the system to function automatically.
NOTE:
It is not necessary to move the tempera-
ture settings for cold or hot vehicles. The
system automatically adjusts the tempera-
ture, mode, and blower speed to provide
comfort as quickly as possible.
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GETTING TO KNOW YOUR VEHICLE
46
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 infor-
mation.
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
NOTE:
For suggested control settings for various
weather conditions, refer to “Climate
Controls” in “Getting To Know Your Vehicle”
in the Owner’s Manual.
Summer Operation
The engine cooling system must be
protected with a high-quality antifreeze
coolant to provide proper corrosion protec -
tion and to protect against engine over -
heating. OAT coolant (conforming to
MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and
defroster performance, make sure the engine
cooling system is functioning properly and
the proper amount, type, and concentration
of coolant is used. Use of the Air Recircula -
tion 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 setting on high. This will ensure
adequate system lubrication to minimize the
possibility of compressor 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 instruments,
or abrasive window cleaners on the inte-
rior surface of the window.
Keep all objects a safe distance from the
window.
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135
Exhaust GasThe best protection against carbon monoxide
entry into the vehicle body is a properly
maintained engine exhaust system.
Whenever a change is noticed in the sound of
the exhaust system, when exhaust fumes can
be detected inside the vehicle, or when the
underside or rear of the vehicle is damaged,
have a competent mechanic inspect the
complete exhaust system and adjacent body
areas for broken, damaged, deteriorated, or
mispositioned parts. Open seams or loose
connections could permit exhaust fumes to
seep into the passenger compartment. In
addition, inspect the exhaust system each
time the vehicle is raised for lubrication or oil
change. Replace as required.
Safety Checks You Should Make Inside
The Vehicle
Seat Belts

Inspect the seat belt system periodically,
checking for cuts, frays, and loose parts.
Damaged parts must be replaced immediately.
Do not disassemble or modify the system.
Front seat belt assemblies must be replaced
after a collision. Rear seat belt assemblies
must be replaced after a collision if they
have been damaged (i.e., bent retractor, torn
webbing, etc.). If there is any question
regarding seat belt or retractor condition,
replace the seat belt.
Air Bag Warning Light
The Air Bag warning light will turn on for
four to eight seconds as a bulb check when
the ignition switch is first turned to ON/RUN.
If the light is either not on during starting,
stays on, or turns on while driving, have the
system inspected at an authorized dealer as
soon as possible. After the bulb check, this
light will illuminate with a single chime when
a fault with the Air Bag System has been
detected. It will stay on until the fault is
removed. If the light comes on intermittently
or remains on while driving, have an autho
-
rized dealer service the vehicle immediately.
Refer to “Occupant Restraint Systems” in
“Safety” for further information.
WARNING!
Exhaust gases can injure or kill. They
contain carbon monoxide (CO), which is
colorless and odorless. Breathing it can
make you unconscious and can eventually
poison you. To avoid breathing (CO), follow
these safety tips:
Do not run the engine in a closed garage
or in confined areas any longer than
needed to move your vehicle in or out of
the area.
If you are required to drive with the
trunk/liftgate/rear doors open, make sure
that all windows are closed and the
climate control BLOWER switch is set at
high speed. DO NOT use the recircula-
tion mode.
If it is necessary to sit in a parked vehicle
with the engine running, adjust your
heating or cooling controls to force
outside air into the vehicle. Set the
blower at high speed.
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STARTING AND OPERATING
154
ROCK — Off-road calibration is only avail -
able in 4WD LOW range. ROCK mode
provides the most aggressive 4WD perfor -
mance for extreme off road terrain. Use for
low speed obstacles such as large rocks,
deep ruts, etc.
NOTE:
ROCK mode is only available on the vehi -
cles equipped with the Off-Road package.
Activate the Hill Descent Control or Selec
Speed Control for steep downhill control.
Refer to “Electronic Brake Control System”
in “Safety” for further information.
STOP/START SYSTEM
The Stop/Start function was developed to
reduce fuel consumption. The system will
stop the engine automatically during a
vehicle stop if the required conditions are
met. Releasing the brake pedal or pressing
the accelerator pedal will automatically
restart the engine.
This vehicle has been upgraded with a heavy
duty battery, starter, as well as other engine
parts, to handle the additional engine starts.
Automatic Mode
The Stop/Start feature is enabled after every
normal customer engine start. At that time,
the system will go into STOP/START READY
and if all other conditions are met, can go
into a STOP/START AUTOSTOP ACTIVE
“Autostop” mode.
To Activate The Autostop Mode, The Following
Must Occur:
The system must be in STOP/START
READY state. A STOP/START READY
message will be displayed in the instru -
ment cluster display within the Stop/Start
section. Refer to “Warning Lights And
Messages” in “Getting To Know Your
Instrument Panel” in your Owner’s
Manual.
The vehicle must be completely stopped.
The gear selector must be in a forward
gear and the brake pedal depressed.
The engine will shut down, the tachometer
will move to the zero position and the Stop/
Start telltale will illuminate indicating you
are in Autostop. Customer settings will be
maintained upon return to an engine running
condition. Refer to the “Stop/Start System” in the
“Starting And Operating” in your Owner’s
Manual.
Possible Reasons The Engine Does Not
Autostop
Prior to engine shut down, the system will
check many safety and comfort conditions to
see if they are fulfilled. Detailed information
about the operation of the Stop/Start system
may be viewed in the instrument cluster
display Stop/Start Screen. In the following
situations, the engine will not stop:
Driver’s seat belt is not buckled
Driver’s door is not closed
Battery temperature is too warm or cold
Battery charge is low
The vehicle is on a steep grade
Cabin heating or cooling is in process and
an acceptable cabin temperature has not
been achieved
HVAC is set to full defrost mode at a high
blower speed
HVAC set to MAX A/C
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157
Possible Reasons The Engine Does Not
Autostop
Prior to engine shut down, the system will
check many safety and comfort conditions to
see if they are fulfilled. Detailed information
about the operation of the Stop/Start system
may be viewed in the instrument cluster
Stop/Start Screen. In the following situations
the engine will not stop:
Driver’s seat belt is not buckled.
Driver’s door is not closed.
Battery temperature is too warm or cold.
The vehicle is on a steep grade.
Cabin heating or cooling is in process and
an acceptable cabin temperature has not
been achieved.
HVAC is set to full defrost mode at a high
blower speed.
Engine has not reached normal operating
temperature.
Battery charge is low.
The transmission is not in DRIVE (auto-
matic transmission) or NEUTRAL (manual
transmission).
Hood is open.
Vehicle is in 4WD LOW transfer case
mode.
Exhaust system regeneration in process.
Other Factors Which Can Inhibit Autostop
Include:
Fuel level.
Accelerator pedal input (automatic trans-
mission only).
Engine temperature too high.
It may be possible for the vehicle to be driven
several times without the Stop/Start system
going into a STOP/START READY state
under more extreme conditions of the items
listed above.
To Start The Engine While In Autostop
Mode
Automatic Transmission:

While in DRIVE, the engine will start when the
brake pedal is released or the throttle pedal is
depressed. The transmission will automatically
re-engage upon engine restart. During this tran -
sition, the brakes will hold the vehicle to avoid
undesired vehicle movement.
Manual Transmission:

When the gear selector is in NEUTRAL, the
engine will start when the clutch pedal is
pressed. The vehicle will go into STOP/START
SYSTEM NOT READY mode until the vehicle
speed is greater than 4 mph (7 km/h).

Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode:

The transmission gear selector is moved
from DRIVE to REVERSE or NEUTRAL.
To maintain cabin temperature comfort.
HVAC is set to full defrost mode.
Battery voltage drops too low.
Low brake vacuum (e.g. after several brake
pedal applications).
Stop/Start OFF switch is pushed.
4WD system is put into 4WD LOW mode.
The emissions system requires it.
A Stop/Start system error occurs.
HVAC system temperature or fan speed is
manually adjusted.
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179
TRAILER TOWING
Trailer Towing Weights (Maximum Trailer Weight Ratings)
Engine/TransmissionModelFrontal Area Maximum GTW
(Gross Trailer Wt.) Maximum Tongue Wt.
(See Note)
2.0L Gas/Automatic AWD or 4WD 40 sq ft (3.72 sq m) 3,307 lbs (1,500 kg) 166 lbs (75 kg)
2.0L Gas/Automatic With Heavy
Duty Cooling Package AWD or 4WD 40 sq ft (3.72 sq m) 3,969 lbs (1,800 kg) 199 lbs (90 kg)
2.4L Gas/Automatic FWD or 4WD 40 sq ft (3.72 sq m) 3,307 lbs (1,500 kg) 166 lbs (75 kg)
3.2L Gas/Automatic without
Heavy Duty Cooling Package AWD or 4WD 40 sq ft (3.72 sq m) 3,307 lbs (1,500 kg) 166 lbs (75 kg)
3.2L Gas/Automatic with Heavy
Duty Cooling Package AWD or 4WD 40 sq ft (3.72 sq m) 4,851 lbs (2,200 kg) 243 lbs (110 kg)
2.2L Diesel/Automatic AWD 40 sq ft (3.72 sq m) 5,501 lbs (2,495 kg) 276 lbs (125 kg)
2.2L Diesel/Automatic 4WD with 2–speed
PTU (4WD LOW) 40 sq ft (3.72 sq m) 5,501 lbs (2,495 kg) 276 lbs (125 kg)
When towing a trailer the technically permissible laden weight may be exceeded by not more than 10% or 220 lbs (100 kg), whichever is lower provided that the operating speed is restricted to 62 mph (100 km/h) or less.
Refer to local laws for maximum trailer towing speeds and loads.
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IN CASE OF EMERGENCY
210
(Continued)
Preparations For Jump Start
The battery in your vehicle is located in the
front of the engine compartment, behind the
left headlight assembly.Positive Battery Post NOTE:
Never use a fast battery charger to start the
engine, as this could damage the electronic
systems of your vehicle, particularly the igni
-
tion and engine fuel supply control units.
1. Apply the parking brake, shift the auto -
matic transmission into PARK (manual
transmission in NEUTRAL) and turn the
ignition OFF.
2. Turn off the heater, radio, and all unnec -
essary electrical accessories.
3. If using another vehicle to jump start the battery, park the vehicle within the
jumper cables reach, apply the parking
brake and make sure the ignition is OFF.
Jump Starting Procedure
WARNING!
Take care to avoid the radiator cooling
fan whenever the hood is raised. It can
start anytime the ignition switch is ON.
You can be injured by moving fan blades.
Remove any metal jewelry such as rings,
watch bands and bracelets that could
make an inadvertent electrical contact.
You could be seriously injured.
Batteries contain sulfuric acid that can
burn your skin or eyes and generate
hydrogen gas which is flammable and
explosive. Keep open flames or sparks
away from the battery.
WARNING! (Continued) WARNING!

Do not allow vehicles to touch each other as
this could establish a ground connection and
personal injury could result.

WARNING!
Failure to follow this jump starting
procedure could result in personal injury or
property damage due to battery explosion.
CAUTION!
Failure to follow these procedures could
result in damage to the charging system of
the booster vehicle or the discharged
vehicle.
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IN CASE OF EMERGENCY
212

REFUELING IN EMERGENCY —
IF EQUIPPED

The fuel filling procedure in case of emer-
gency is described in the “Emergency Gas
Can Refueling”. Refer to “Refueling The
Vehicle” in “Starting And Operating” for
further information.
The vehicle is equipped with a refueling
funnel. If refueling is necessary, while using
an approved gas can, please insert the refu -
eling funnel into the filler neck opening.
Refueling Funnel Inserting Funnel
IF YOUR ENGINE
OVERHEATS
In any of the following situations, you can
reduce the potential for overheating your
engine by taking the appropriate action.
On the highways — slow down.
In city traffic — while stopped, place the
transmission in NEUTRAL, but do not
increase engine idle speed.
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.
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
conditioner turned off until the pointer
drops back into the normal range. If the
pointer remains on the “H” and you hear
continuous chimes, turn the engine off
immediately and call for service.
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213
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 supple-
ment to the radiator and aids in removing
heat from the engine cooling system.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
temporarily 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
access hole (at the left front corner of the
gear selector assembly), and push and
hold the override release lever down.
Override Access Hole
6. Move the gear selector to the NEUTRAL position.
7. The vehicle may then be started in NEUTRAL.
8. Reinstall the gear selector boot.
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.
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