engine overheat JEEP COMPASS 2018 Owner handbook (in English)

NOTE:
The Easy Entry/Exit feature is not enabled
when the vehicle is delivered from the fac-
tory. The Easy Entry/Exit feature is enabled
(or later disabled) through the programmable
features in the Uconnect system. Refer to
“Uconnect Settings/Customer Programmable
Features” in “Multimedia” in the Owner’s
Manual for further information.
Front Heated Seats — If Equipped
The front heated seats 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.
If your vehicle is equipped with automatic
temperature controls with an integrated cen-
ter stack, or manual temperature controls,
you’ll find the heated seat switches on the
switch bank below the radio screen.If the HI level setting is selected, the system
will automatically switch to LO level after
approximately 60 minutes of continuous op-
eration. At that time, the display will change
from HI to LO, indicating the change. The LO
level setting will turn off automatically after
approximately 45 minutes.
NOTE:
The engine must be running for the heated
seats to operate.
Vehicles With Remote Start — If Equipped
On models that are equipped with remote
start, the heated seats can be programmed to
come on during a remote start.
This feature can be programmed through the
Uconnect system. Refer to “Uconnect Set-
tings” in “Multimedia” in the Owner’s
Manual for further information.
WARNING!
• Persons who are unable to feel pain to
the skin because of advanced age,
chronic illness, diabetes, spinal cord in-
jury, medication, alcohol use, exhaus-
WARNING!
tion or other physical condition must
exercise care when using the seat
heater. It may cause burns even at low
temperatures, 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. Sit-
ting in a seat that has been overheated
could cause serious burns due to the
increased surface temperature of the
seat.
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 passen-
ger compartment and move air through fine
perforations in the seat cover to help keep the
driver and front passenger cooler in higher
ambient temperatures. The fans operate at
two speeds, HI and LO.GETTING TO KNOW YOUR VEHICLE
28

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 temperature
settings 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.
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 de-
froster 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 rec-
ommended, 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 ad-equate 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.
Outside Air Intake
Make sure the air intake, located directly in
front of the windshield, is free of obstruc-
tions, such as leaves. Leaves collected in the
air intake may reduce airflow, and if they
enter the plenum, they could plug the water
drains. In Winter months, make sure the air
intake is clear of ice, slush, and snow.
Cabin Air Filter
The climate control system filters out dust
and pollen from the air. Contact an autho-
rized dealer to service your cabin air filter,
and to have it replaced when needed.
47

WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
— Electronic Throttle Control (ETC)
Warning Light
This light informs you of a problem with the
Electronic Throttle Control (ETC) system. If a
problem is detected while the vehicle is run-
ning, the light will either stay on or flash
depending on the nature of the problem.
Cycle the ignition when the vehicle is safely
and completely stopped and the transmission
is placed in the PARK position. The light
should turn off. If the light remains on with
the vehicle running, your vehicle will usually
be drivable; however, see an authorized
dealer for service as soon as possible.
NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.If the light continues to flash when the ve-
hicle is running, immediate service is re-
quired and you may experience reduced per-
formance, an elevated/rough idle, or engine
stall and your vehicle may require towing. The
light will come on when the ignition 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 Warn-
ing 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 temperature
reaches the upper limit, a continuous chime
will be sound for four minutes or until the
engine is able to cool: whichever comes first.
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 nor-mal, turn the engine off immediately and call
for service. Refer to “If Your Engine Over-
heats” in “In Case Of Emergency” for further
information.
— Hood Open Warning Light
This indicator 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 indicator will turn when the liftgate is
open.
NOTE:
If the vehicle is moving, there will also be a
single chime.
— Oil Pressure Warning Light
This light indicates low engine oil pressure. If
the light turns on while driving, stop the
vehicle and shut off the engine as soon as
possible. A chime will sound when this light
turns on.
63

Stopping The Engine
Vehicles Equipped With A Mechanical Key Fob:
To turn off the engine, proceed as follows:
1. Park the car in a position that does not
cause a traffic hazard.
2. Place the transmission in gear (models
with a manual transmission) or place the
transmission in PARK (P) (models with
automatic transmission).
3. With the engine idling, place the ignition
in the STOP/OFF position.
4. Remove the key from the ignition when
the engine is shut off.
Vehicles Equipped With Electronic Key (Keyless
Ignition):
To shut off the engine with vehicle speed
greater than 5 mph (8 km/h), you must push
and hold the ignition or push the START/
STOP button three times consecutively
within a few seconds. The engine will shut
down, and the ignition will be placed in the
RUN position.Turning Off the car (placing the ignition from
the RUN position to the STOP position), the
power supply to the accessories are main-
tained for a period of three minutes.
Opening the driver side door with the ignition
in RUN will sound a short chime that reminds
the driver to place the ignition to STOP.
When the ignition is in the STOP/OFF posi-
tion, the window switches remains active for
three minutes. Opening a front door will can-
cel this function.
After severe driving, idle the engine to allow
the temperature inside the engine compart-
ment to cool before shutting off the engine.
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.
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.
143

WARNING!
Do not coast in NEUTRAL and never turn
off the ignition to coast down a hill. These
are unsafe practices that limit your re-
sponse to changing traffic or road condi-
tions. You might lose control of the vehicle
and have a collision.
CAUTION!
Towing the vehicle, coasting, or driving for
any other reason with the transmission in
NEUTRAL can cause severe transmission
damage.
Refer to “Recreational Towing” in “Start-
ing And Operating” and “Towing A Dis-
abled Vehicle” in “In Case Of Emergency”
for further information.
DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest
upshifts and downshifts, and the best fuel
economy. The transmission automatically up-shifts through all forward gears. The DRIVE
position provides optimum driving character-
istics under all normal operating conditions.
When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain,
traveling into strong head winds, or while
towing a heavy trailer), use the AutoStick
shift control to select a lower gear (refer to
"AutoStick" in this section for further infor-
mation). Under these conditions, using a
lower gear will improve performance and ex-
tend transmission life by reducing excessive
shifting and heat buildup.
If the transmission temperature exceeds nor-
mal operating limits, the transmission con-
troller may modify the transmission shift
schedule, reduce engine torque, and/or ex-
pand the range of torque converter clutch
engagement. This is done to prevent trans-
mission damage due to overheating.
If the transmission becomes extremely hot,
the "Transmission Temperature Warning
Light" may illuminate, and the transmission
may operate differently until the transmis-
sion cools down.During cold temperatures, transmission op-
eration may be modified depending on en-
gine and/or transmission temperature as well
as vehicle speed. This feature improves warm
up time of the engine and transmission to
achieve maximum efficiency. Engagement of
the torque converter clutch (and, for the
nine-speed, shifts into 8th or 9th gear), are
inhibited until the engine and/or transmis-
sion is warm (refer to the “Note” under
“Torque Converter Clutch” in this section).
Normal operation will resume once the tem-
perature(s) have risen to a suitable level.
AUTOSTICK
AutoStick is a driver-interactive transmission
feature providing manual shift control, giving
you more control of the vehicle. AutoStick
allows you to maximize engine braking, elimi-
nate undesirable upshifts and downshifts,
and improve overall vehicle performance.
This system can also provide you with more
control during passing, city driving, cold slip-
pery conditions, mountain driving, trailer
towing, and many other situations.
155

Operation
When the gear selector is in the AutoStick
position (beside the DRIVE position), it can
be moved forward and rearward. This allows
the driver to manually select the transmission
gear being used. Moving the gear selector
forward (-) triggers a downshift and rearward
(+) an upshift. The current gear is displayed
in the instrument cluster.
In AutoStick mode, the transmission will
shift up or down when the driver moves the
gear selector rearward (+) or forward (-), un-
less an engine lugging or overspeed condition
would result. It will remain in the selected
gear until another upshift or downshift is
chosen, except as described below.
• Six-speed transmissions will automatically
upshift when necessary to prevent engine
over-speed.
• 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 gear when coming to a stop.
After a stop, the driver should manually
upshift (+) the transmission as the vehicle
is accelerated.
• You can start out, from a stop, in first or
second gear (or third gear, in six-speed
models, or in 4LO range, Snow mode, or
Sand mode, where available). Tapping (+)
(at a stop) will allow starting in second gear.
Starting out in second gear can be helpful
in snowy or icy conditions.
• If a requested downshift would cause the
engine to over-speed, that shift will not
occur.
• The system will ignore attempts to upshift
at too low of a vehicle speed.
• 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.
NOTE:
When Selec-Speed or Hill Descent Control is
enabled, AutoStick is not active.To disengage AutoStick, return the gear se-
lector to the DRIVE position. You can shift in
or out of the AutoStick position at any time
without taking your foot off the accelerator
pedal.
WARNING!
Do not downshift for additional engine
braking on a slippery surface. The drive
wheels could lose their grip and the ve-
hicle could skid, causing a collision or
personal injury.
Transmission Limp Home Mode
Transmission function is monitored electroni-
cally for abnormal conditions. If a condition
is detected that could result in transmission
damage, Transmission Limp Home Mode is
activated. In this mode, the transmission
may operate only in a fixed gear, or may
remain in NEUTRAL. The Malfunction Indi-
cator Light (MIL) may be illuminated. Limp
Home Mode may allow the vehicle to be
driven to an authorized dealer for service
without damaging the transmission.
STARTING AND OPERATING
156

IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS .186
Control....................186
BULB REPLACEMENT........186
Replacement Bulbs.............186
Replacing Exterior Bulbs..........188
FUSES....................192
General Information.............192
Fuse Location................192
Engine Compartment Fuses/Distribution
Unit......................193
Interior Fuses................196
Rear Cargo Fuse/Relay Distribution
Unit......................197
JACKING AND TIRE CHANGING .199
Jack Location/Spare Tire Stowage. . . .199
Road Tire Installation............204
EC Declaration Of Conformance.....204
Jack Usage Precautions..........205
TIRE SERVICE KIT — IF
EQUIPPED................206
JUMP STARTING............211
Preparations For Jump Start........211
Jump Starting Procedure..........212
REFUELING IN EMERGENCY. . . .213
IF YOUR ENGINE OVERHEATS . .214GEAR SELECTOR OVERRIDE . . .214
FREEING A STUCK VEHICLE. . . .215
TOWING A DISABLED VEHICLE .216
Without The Key Fob............217
Front-Wheel Drive (FWD) Models — With
KeyFob....................217
4x4 Models..................218
Emergency Tow Hooks...........218
Tow Eye Usage — If Equipped......218
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS)............220
EVENT DATA RECORDER (EDR).220
IN CASE OF EMERGENCY
185

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.
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 park brake.
3. Grasp the boot material rearward of the
gear selector and pull up to carefully
separate the gear selector bezel and boot
assembly from the center console.
Gear Selector Bezel
IN CASE OF EMERGENCY
214

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.
CAUTION!
• 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
CAUTION!
above 30 mph (48 km/h) while in gear
(no transmission shifting occurring).
TOWING A DISABLED
VEHICLE
This section describes procedures for towing
a disabled vehicle using a commercial towing
service.
Towing Condition Wheels OFF The
GroundFWD MODELS 4X4 MODELS
Flat Tow NONENOT ALLOWED NOT ALLOWED
Wheel Lift Or Dolly TowRearNOT ALLOWED NOT ALLOWED
Front OKNOT ALLOWED
FlatbedALL BEST METHOD ONLY METHOD
Proper towing or lifting equipment is required
to prevent damage to your vehicle. Use only
tow bars and other equipment designed for
this purpose, following equipment manufac-
turer’s instructions. Use of safety chains is
mandatory. Attach a tow bar or other towing
devices to main structural members of thevehicle, not to bumpers or associated brack-
ets. State and local laws regarding vehicles
under tow must be observed.
IN CASE OF EMERGENCY
216

Light spark knock at low engine speeds is not
harmful to your engine. However, continued
heavy spark knock at high speeds can cause
damage, and immediate service is required.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Poor quality gasoline can cause problems
such as hard starting, stalling, and hesita-
tions. If you experience these symptoms, try
another brand of gasoline before considering
service for the vehicle.
Ethanol
The manufacturer recommends that your ve-
hicle be operated on fuel containing no more
than 10% ethanol. Purchasing your fuel from
a reputable supplier may reduce the risk of
exceeding this 10% limit and/or of receiving
fuel with abnormal properties.
CAUTION!
Use of fuel with Ethanol content higher
than 10% may result in engine malfunc-
tion, starting and operating difficulties,
and materials degradation. These adverse
effects could result in permanent damage
to your vehicle.
Materials Added To Fuel
Indiscriminate use of fuel system cleaning
agents should be avoided. Many of these
materials intended for gum and varnish re-
moval may contain active solvents or similar
ingredients. These can harm fuel system gas-
ket and diaphragm materials.
Fuel System Cautions
CAUTION!
Follow these guidelines to maintain your
vehicle’s performance:
• The use of leaded gasoline is prohibited
by law. Using leaded gasoline can impair
CAUTION!
engine performance and damage the
emissions control system.
• An out-of-tune engine or certain fuel or
ignition malfunctions can cause the
catalytic converter to overheat. If you
notice a pungent burning odor or some
light smoke, your engine may be out of
tune or malfunctioning and may require
immediate service. Contact an autho-
rized dealer for service assistance.
• The use of fuel additives, which are now
being sold as octane enhancers, is not
recommended. Most of these products
contain high concentrations of metha-
nol. Fuel system damage or vehicle per-
formance problems resulting from the
use of such fuels or additives is not the
responsibility of the manufacturer and
may void or not be covered under the
New Vehicle Limited Warranty.
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties
being assessed against you.
TECHNICAL SPECIFICATIONS
256