engine overheat JEEP CHEROKEE 2020 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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25
Front Heated Seats — If Equipped
If your vehicle is equipped with front heated
seats, the control buttons are located within
the Uconnect system. You can gain access to
the control buttons through the climate
screen or the controls screen.
Press the heated seat button once to
turn the HI setting on.
Press the heated seat button a second
time to turn the LO setting on.
Press the heated seat button a third
time to turn the heating elements off.
The level of heat selected will stay on until
changed by the operator.
NOTE:
The engine must be running for the heated
seats to operate.
Vehicles Equipped With Remote Start

On models that are equipped with remote start,
the driver’s heated seat can be programmed to
come on during a remote start.
This feature can be programmed through the
Uconnect system. Refer to “Uconnect Settings”
in “Multimedia” in the Owner's Manual.

Rear Heated Seats — If Equipped
On some models, the two outboard rear seats
are equipped with heated seats. The heated
seat switches for these seats are located on
the rear of the center console.
There are two heated seat switches that allow
the rear passengers to operate the seats
independently. Amber indicator lights in
each switch indicate the level of heat in use. Two indicator lights will illuminate for HI,
one for LO and none for off.
Push the heated seat button once to
turn the HI setting on.
Push the heated seat button a second
time to turn the LO setting on.
Push the heated seat button a third
time to turn the heating elements off.
NOTE:
Once a heat setting is selected, heat will
be felt within two to five minutes.
The engine must be running for the heated
seats to operate.
When the HI-level setting is selected, the
heater will provide a boosted heat level
during the first four minutes of operation.
Then, the heat output will drop to the normal
HI-level. The level of heat selected will stay
on until changed by the operator.
Front Ventilated Seats — If Equipped
If your vehicle is equipped with ventilated
seats, the seat cushion and seat back will
have fans that draw the air from the
passenger compartment and move air
through fine perforations in the seat cover to
WARNING!
Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaus-
tion or other physical condition must
exercise care when using the seat heater.
It may cause burns even at low tempera-
tures, especially if used for long periods
of time.
Do not place anything on the seat or
seatback that insulates against heat,
such as a blanket or cushion. This may
cause the seat heater to overheat. Sitting
in a seat that has been overheated could
cause serious burns due to the increased
surface temperature of the seat.
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29
The heated steering wheel control button is
located within the Uconnect system. You can
gain access to the control button through the
climate screen or the controls screen.
Press the heated steering wheel button
once to turn the heating element on.
Press the heated steering wheel button
a second time to turn the heating element
off.
NOTE:
The engine must be running for the heated
steering wheel to operate.
Vehicles Equipped With Remote Start
On models that are equipped with remote
start, the heated steering wheel can be
programmed to come on during a remote
start through the Uconnect system. Refer to
“Uconnect Settings” in “Multimedia” in the
Owner’s Manual for further information.
MIRRORS
Power Folding Mirrors — If Equipped
The switch for the power folding mirrors is
located between the power mirror switches L
(left) and R (right). Push the switch once and
the mirrors will fold in, pushing the switch a
second time will return the mirrors to the
normal driving position. Power Folding Mirror Switch
NOTE:
If the vehicle speed is greater than 10 mph
(16 km/h) the folding feature will be
disabled.
If the mirrors are in the folded position, and
vehicle speed is equal or greater than
10 mph (16 km/h), they will automatically
unfold.
Resetting The Power Folding Outside Mirrors
To reset the power folding mirrors: fold and
unfold them by pushing the button (this may
require multiple button pushes). This resets
them to their normal position.
WARNING!
Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaus-
tion, or other physical conditions must
exercise care when using the steering
wheel heater. It may cause burns even at
low temperatures, especially if used for
long periods.
Do not place anything on the steering
wheel that insulates against heat, such
as a blanket or steering wheel covers of
any type and material. This may cause
the steering wheel heater to overheat.
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GETTING TO KNOW YOUR INSTRUMENT PANEL
66
If the light continues to flash when the
vehicle is running, immediate service is
required. You may experience reduced
performance, an elevated/rough idle, or
engine stall and your vehicle may require
towing. The light will come on when the igni-
tion is placed in the ON/RUN or ACC/ON/
RUN position and remain on briefly as a bulb
check. If the light does not come on during
starting, have the system checked by an
authorized dealer.
— Engine Coolant Temperature Warning
Light
This light warns of an overheated engine
condition. If the engine coolant temperature
is too high, this indicator will illuminate and
a single chime will sound.
If the light turns on while driving, safely pull
over and stop the vehicle. If the A/C system
is on, turn it off. Also, shift the transmission
into NEUTRAL and idle the vehicle. If the
temperature reading does not return to
normal, turn the engine off immediately and
call for service. Refer to “If Your Engine
Overheats” in “In Case Of Emergency” for
further information.
— Hood Open Warning Light
This warning light will illuminate when the
hood is left open and not fully closed.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Liftgate Open Warning Light
This warning light will illuminate when the
liftgate is open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Oil Pressure Warning Light
This warning light will illuminate to indicate
low engine oil pressure. A chime will sound
when this light turns on and a message “Oil
Pressure Low” will display in the message
screen. If the light turns on while driving,
pull the vehicle to the side of the road at a
safe location, stop the vehicle, shut off the
engine as soon as possible, check the oil
level and correct the oil level if it is low.
Contact an authorized dealer. Do not operate the vehicle until the cause is
corrected. This light may or may not indicate
how much oil is in the engine. The engine oil
level must be checked according to section
“Scheduling Service” Checking Oil Level. If
the oil level is low and corrected, the engine
can be restarted. Otherwise the vehicle
should be serviced by an authorized dealer.
NOTE:
The light may flash, a message in the center
of the dash may be displayed momentarily
“low oil pressure” and a chime may occur
during sharp cornering maneuvers. If this
happen it may indicate a low oil level. The oil
level should be checked and serviced by a
dealer if this occurs.
— Oil Temperature Warning Light

This warning light will illuminate to indicate
the engine oil temperature is high. If the light
turns on while driving, stop the vehicle and
shut off the engine as soon as possible. Wait for
oil temperature to return to normal levels.

CAUTION!
If the vehicle is driven with low oil levels
severe engine damage can occur. Have the
vehicle checked immediately.
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85
The cluster icon and switch lamp will flash
for several seconds then extinguish when
the driver pushes the HDC switch but
enable conditions are not met.
The cluster icon and switch lamp will flash
for several seconds then extinguish when
HDC disables due to excess speed.
The cluster icon and switch lamp will flash
when HDC deactivates due to overheated
brakes. The flashing will stop and HDC will
activate again once the brakes have cooled
sufficiently.
Selec Speed Control (SSC) — If Equipped
Selec Speed Control (SSC) is intended for off
road driving in 4L only. SSC maintains
vehicle speed by actively controlling engine
torque and brakes.
SSC has three states:
1. Off (feature is not enabled and will notactivate).
2. Enabled (feature is enabled and ready but activation conditions are not met, or
driver is actively overriding with brake or
throttle application).
3. Active (feature is enabled and actively controlling vehicle speed).
Enabling SSC
SSC is enabled by pushing the SSC switch,
but the following conditions must also be
met to enable SSC:
Driveline is in 4L Range
Vehicle speed is below 5 mph (8 km/h)
Park brake is released
Driver door is closed
Driver is not applying throttle Activating SSC
Once SSC is enabled it will activate automat
-
ically once the following conditions are met:
Driver releases throttle
Driver releases brake
Transmission is in any selection other than
PARK (P)
Vehicle speed is below 20 mph (32 km/h)
The set speed for SSC is selectable by the
driver, and can be adjusted by using the gear
shift +/-. Additionally, the SSC set speed
may be reduced when climbing a grade and
the level of set speed reduction depends on
the magnitude of grade. The following
summarizes the SSC set speeds:
SSC Target Set Speeds
1st = .6 mph (1 km/h)
2nd = 1.2 mph (2 km/h)
3rd = 1.8 mph (3 km/h)
4th = 2.5 mph (4 km/h)
5th = 3.1 mph (5 km/h)
WARNING!
HDC is only intended to assist the driver in
controlling vehicle speed when descending
hills. The driver must remain attentive to
the driving conditions and is responsible
for maintaining a safe vehicle speed.
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139
(Continued)
Normal Starting — Diesel Engine
Before starting your vehicle, adjust your seat,
both inside and outside mirrors, and fasten
your seat belts.
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.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.
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
battery blankets are available from your
authorized Mopar dealer.
Normal Starting Procedure — Keyless
Enter-N-Go
Observe the instrument panel telltales when
starting the engine.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or
pressing the accelerator pedal.
1. Always apply the parking brake.
2. Press and hold the brake pedal while pushing the ENGINE START/STOP
button once.
NOTE:
A delay of the start of up to five seconds is
possible under very cold conditions. The
“Wait to Start” telltale will be illuminated
WARNING!
Before exiting a vehicle, always come to
a 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-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.
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
repeating start procedure.
WARNING! (Continued)
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149
NOTE:
In AutoStick mode, the transmission will
only shift up or down when the driver moves
the gear selector rearward (+) or forward (-),
except as described below.
The transmission will automatically
upshift when necessary to prevent engine
overspeed.
The transmission will automatically down-
shift as the vehicle slows (to prevent
engine lugging) and will display the
current gear.
The transmission will automatically down -
shift to FIRST or SECOND gear
(depending on model) when coming to a
stop. After a stop, the driver should manu -
ally upshift (+) the transmission as the
vehicle is accelerated.
You can start out (from a stop) in FIRST or
SECOND gear. Starting out in SECOND
gear can be helpful in snow or icy condi -
tions. Tap the gear selector forward or
rearward to select the desired gear after
the vehicle is brought to a stop.
If a requested downshift would cause the
engine to overspeed, that shift will not
occur.
The system will ignore attempts to upshift
at too low of a vehicle speed.
Avoid using Speed Control when AutoStick
is engaged because the transmission will
not shift automatically.
Transmission shifting will be more notice-
able when AutoStick is enabled.
The system may revert to automatic shift
mode if a fault or overheat condition is
detected. To disengage AutoStick mode, return the
gear selector to the DRIVE position. You can
shift in or out of the AutoStick position at any
time without taking your foot off the acceler
-
ator pedal.
WARNING!
Do not downshift for additional engine
braking on a slippery surface. The drive
wheels could lose their grip and the
vehicle could skid, causing a collision or
personal injury.
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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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IN CASE OF EMERGENCY
214
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 trans-
mission, push and hold the lock button on
the gear selector. Then shift back and forth
between DRIVE and REVERSE (with auto -
matic transmission) or SECOND GEAR and
REVERSE (with manual transmission), while
gently pressing the accelerator.
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
seconds, you must press the brake pedal to
engage DRIVE or REVERSE.
Use the least amount of accelerator pedal
pressure that will maintain the rocking
motion without spinning the wheels or racing
the engine. NOTE:
Push the “ESC OFF” switch (if necessary), to
place the Electronic Stability Control (ESC)
system in “Partial Off” mode, before rocking
the vehicle. Refer to “Electronic Brake
Control System” in “Safety” for further infor
-
mation. Once the vehicle has been freed,
push the "ESC OFF" switch again to restore
“ESC On” mode.
CAUTION!
Racing the engine or spinning the wheels
may lead to transmission overheating
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
shifting between DRIVE/SECOND GEAR
and REVERSE, do not spin the wheels
faster than 15 mph (24 km/h), or drive -
train damage may result.
Revving the engine or spinning the
wheels too fast may lead to transmission
overheating and failure. It can also
damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
WARNING!
Fast spinning tires can be dangerous.
Forces generated by excessive wheel
speeds may cause damage, or even failure,
of the axle and tires. A tire could explode
and injure someone. Do not spin your
vehicle's wheels faster than 30 mph
(48 km/h) or for longer than 30 seconds
continuously without stopping when you
are stuck and do not let anyone near a
spinning wheel, no matter what the speed.
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324
INDEX
Oil ........................................ 261, 262
Oil Filler Cap .......... 229 , 230 , 231 , 232
Oil Selection .................................. 261
Overheating ................................... 212
Enhanced Accident Response
Feature ..................................... 115 , 217
Exterior Lights ............................. 30 , 137
F
Filters Air Conditioning ............................... 47
Engine Oil ..................................... 262
Flashers Hazard Warning ............................. 182Turn Signals ............................ 73 , 137
Flash-To-Pass ...................................... 31
Flat Tire Changing ..................... 241 , 246
Flat Tire Stowage ....................... 241 , 246
Fluid Capacities................................. 261
Fluid Leaks ....................................... 137
Fluid Level Checks Brake ............................................ 235
Engine Oil ..................................... 233
Fluid, Brake ...................................... 265
Fluids And Lubricants ........................ 262
Fob, Key ............................................. 13
Fog Lights ..................................... 32 , 71
Fog Lights, Rear .................................. 32 Fold-Flat Seats .................................... 22
Forward Collision Warning .................... 90
Four Wheel Drive ............................... 150
Freeing A Stuck Vehicle ..................... 214
Fuel
Additives ....................................... 257
Consumption ................................. 266
Light............................................... 68
Materials Added............................. 257
Octane Rating................................ 262
Requirements ................................ 261
Specifications................................ 262
Tank Capacity................................ 261
Fueling ......................................172 , 173
Fuses ............................................... 184
G
Gasoline Particulate Filter (GPF) ........... 58
Gear Ranges ..............................144 , 148
Gear Selector Override ....................... 213
Glass Cleaning .................................. 254
GVWR .............................................. 178
H
Hazard Warning Flashers .................... 182
Head Restraint Removal ....................... 26
Head Restraints .................................. 26
Head Rests ......................................... 26 Headlights ...........................................30
Automatic ........................................31
Automatic High Beam .......................31
High Beam................................. 30 , 31

High Beam/Low Beam Select Switch ..... 31

On With Wipers ................................31
Passing...................................... 30 , 31
Switch .............................................30 Time Delay.......................................32
Heated Seats ................................. 24 , 25
Heated Steering Wheel .........................28
Hill Descent Control .............................83
Hill Descent Control Indicator ...............83
Hill Start Assist....................................81
Hood Prop ...........................................52
Hood Release ......................................52
I
Ignition ...............................................15 Switch .............................................15
Instrument Cluster ...............................60 Descriptions .....................................73
Display ............................................59Menu Items .....................................61
Instrument Panel Lens Cleaning ..........254
Interior Appearance Care ....................253
Introduction ..........................................1
Inverter Power ..............................................56
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