engine coolant JEEP COMPASS 2023 Owners Manual

56GETTING TO KNOW YOUR VEHICLE
Climate Control OFF
Press and release this button on the
touchscreen, or push and release the
button on the faceplate to turn the
Climate Control ON/OFF.
AUTOMATIC TEMPERATURE CONTROL
(ATC)
Automatic Operation

1. Push the AUTO button on the faceplate, or the
AUTO button on the touchscreen (if equipped)
on the Automatic Temperature Control (ATC)
Panel.

2. Next, adjust the temperature you would like the system to maintain by adjusting the
temperature control buttons. Once the desired
temperature is displayed, the system achieves
and automatically maintains that comfort level.

3. When the system is set up for your comfort level, it is not necessary to change the
settings. You 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 US 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 remains on low until the engine warms up.
The blower increases 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.
CLIMATE VOICE COMMANDS

Adjust vehicle temperatures hands-free and keep
everyone comfortable while you keep moving ahead.

Push the VR button on the steering wheel. After the
beep, say one of the following commands:
“ Set the driver temperature to 70 degrees ”
“Set the passenger temperature to 70 degrees ”Did You Know:
Voice Command for Climate may
only be used to adjust the interior temperature of
your vehicle. Voice Command will not work to
adjust the heated seats or steering wheel if
equipped.
OPERATING TIPS
Refer to the chart at the end of this section for
suggested control settings for various weather
conditions.
Summer Operation
The engine cooling system must be protected with
a high-quality antifreeze coolant to provide proper
corrosion protection and to protect 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
system 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
For information on maintaining the Climate Control
system when the vehicle is being stored for an
extended period of time, see Ú page 315.

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GETTING TO KNOW YOUR INSTRUMENT PANEL75
BASE / MIDLINE INSTRUMENT CLUSTER
D
ESCRIPTIONS

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000).
2. Instrument Cluster Display
The instrument cluster display features a
driver interactive display Ú page 77.
3. Speedometer
Indicates vehicle speed.
4. Temperature Gauge
The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather or up mountain grades. It should
not be allowed to exceed the upper limits of
the normal operating range. 5. Fuel Gauge
The gauge shows the level of fuel in the fuel
tank when the ignition switch is in the ON/
RUN position.
 The fuel pump symbol points to
the side of the vehicle where the
fuel door is located.
NOTE:The hard telltales will illuminate for a bulb check
when the ignition is first cycled.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended to call an authorized
dealer for service if your vehicle overheats
Ú page 279.
CAUTION!
Driving with a hot engine 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”, turn the engine
off immediately and call an authorized dealer
for service.
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GETTING TO KNOW YOUR INSTRUMENT PANEL77
PREMIUM INSTRUMENT CLUSTER
D
ESCRIPTIONS

1. Temperature Gauge

The temperature gauge shows engine
coolant temperature. Any reading within the
normal range indicates that the engine
cooling system is operating satisfactorily.
The pointer will likely indicate a higher
temperature when driving in hot weather,
up mountain grades, or when towing a
trailer. It should not be allowed to exceed
the upper limits of the normal operating
range. 2. Tachometer
Indicates the engine speed in revolutions
per minute (RPM x 1000).
3. Speedometer
Indicates vehicle speed.
4. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the Keyless Push Button
Ignition is in the ON/RUN position.
 The fuel pump symbol points to
the side of the vehicle where the
fuel door is located.
NOTE:The Instrument Cluster Warning Indicators will illu -
minate briefly for a bulb check when the ignition is
first cycled.
INSTRUMENT CLUSTER DISPLAY
Your vehicle may be equipped with an instrument
cluster display, which offers useful information to
the driver. With the ignition in the OFF mode,
opening/closing of a door will activate the display
for viewing, and display the total miles, or
kilometers, in the odometer. Your instrument
cluster display is designed to display important
information about your vehicle’s systems and
features. Using the driver interactive display
located on the instrument panel, your instrument
cluster display can show you how systems are
working and give you warnings when they aren’t.
The steering wheel mounted controls allow you to
scroll through and enter the main menus and
submenus. You can access the specific
information you want and make selections and
adjustments.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. It is recommended to call an authorized
dealer for service if your vehicle overheats
Ú page 279.
CAUTION!
Driving with a hot engine 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”, turn the engine
off immediately and call an authorized dealer for
service.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL91
Drowsiness Detected Warning —
If Equipped
Driver drowsiness detection helps to
avoid crashes caused by fatigue by
advising drivers to take a break in time.
Once Drowsy Driver is detected, A pop-up
will display continuously until the driver presses
the OK button to clear.
Once the pop-up message is cleared, it is stored
until the condition is no longer true.
Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Ú page 114.
Electronic Throttle Control (ETC) Warning
Light
This warning light will illuminate to
indicate a problem with the ETC system.
If a problem is detected while the vehicle
is running, 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 vehicle is
running, immediate service is required and 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 ignition is placed in the 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 Temperature Warning Light
This warning light will illuminate to warn
of an overheated engine condition. If the
engine coolant temperature is too high,
this light will illuminate and a single
chime will sound.
If the light turns on while driving, safely pull over
and stop the vehicle. If the Air Conditioning (A/C)
system is on, turn it off. Also, shift the transmission
into NEUTRAL (N) and idle the vehicle. If the temperature reading does not return to normal,
turn the engine off immediately and call for service
Ú
page 261.
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. If the
light turns on while driving, stop the
vehicle, shut off the engine as soon as
possible, and contact an authorized dealer.
A chime will sound when this light turns on.
Do not operate the vehicle until the cause is
corrected. This light does not indicate how much oil
is in the engine. The engine oil level must be
checked under the hood.
WARNING!
Continued operation with reduced assist could
pose a safety risk to yourself and others. Service
should be obtained as soon as possible.
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GETTING TO KNOW YOUR INSTRUMENT PANEL93
Electronic Park Brake Warning Light
This warning light will illuminate to
indicate the Electronic Park Brake is not
functioning properly and service is
required. Contact an authorized dealer.
Electronic Stability Control (ESC) Active
Warning Light — If Equipped
This warning light will indicate when the
ESC system is Active. The ESC Indicator
Light in the instrument cluster will come
on when the ignition is placed in the ON/
RUN position, and when ESC is activated. It should
go out with the engine running. If the ESC Indicator
Light comes on continuously with the engine
running, a malfunction has been detected in the
ESC system. If this warning light remains on after
several ignition cycles, and the vehicle has been
driven several miles (kilometers) at speeds greater
than 30 mph (48 km/h), see an authorized dealer
as soon as possible to have the problem
diagnosed and corrected.
The ESC OFF Indicator Light and the ESC Indi -
cator Light come on momentarily each time the
ignition is placed in the ON/RUN position.
The ESC system will make buzzing or clicking
sounds when it is active. This is normal; the
sounds will stop when ESC becomes inactive.
This light will come on when the vehicle is in an
ESC event.
Electronic Stability Control (ESC) OFF
Warning Light — If Equipped
This warning light indicates the
ESC is off.
Each time the ignition is turned to ON/RUN, the
ESC system will be on, even if it was turned off
previously.
Fuel Cutoff Warning Light — If Equipped
This warning light will illuminate after an
accident has occurred, and the system
has shut the fuel off.
Active Lane Management Warning Light —
If Equipped
The Active Lane Management Warning
Light will be solid yellow when the vehicle
is approaching a lane marker. The
warning light will flash when the vehicle is
crossing the lane marker.
Service Active Lane Management Warning
Light — If Equipped
This warning light will illuminate when the
Active Lane Management system is not
operating and requires service. Please
see an authorized dealer.
Low Coolant Level Warning Light
This telltale will turn on to indicate the
vehicle coolant level is low Ú page 279.
Low Fuel Warning Light
Depending on whether the tank size is
13.5 gal (51 L) or 15.8 gal (60 L), the
Low Fuel Indicator Light will turn on when
the fuel level goes below 1.5 gal (5.6 L) or
1.7 gal (6.6 L) respectively.
Low Washer Fluid Warning Light —
If Equipped
This warning light will illuminate when the
windshield washer fluid is low.
Engine Check/Malfunction Indicator (MIL)
Warning Light
The MIL is a part of an Onboard
Diagnostic System called OBD II that
monitors engine and automatic
transmission control systems. This
warning light will illuminate when the ignition is in
the ON/RUN position before engine start. If the
bulb does not come on when turning the ignition
switch from OFF to ON/RUN, have the condition
checked promptly.
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242SAFETY
(Continued)
PERIODIC SAFETY CHECKS YOU SHOULD
M
AKE OUTSIDE THE VEHICLE
Tires
Examine tires for excessive tread wear and uneven
wear patterns. Check for stones, nails, glass, or
other objects lodged in the tread or sidewall.
Inspect the tread for cuts and cracks. Inspect
sidewalls for cuts, cracks, and bulges. Check the
lug nut/bolt torque for tightness. Check the tires
(including spare) for proper cold inflation pressure.
Lights
Have someone observe the operation of brake
lights and exterior lights while you work the
controls. Check turn signal and high beam
indicator lights on the instrument panel.
Door Latches
Check for proper closing, latching, and locking.
Fluid Leaks
Check area under the vehicle after overnight
parking for fuel, coolant, oil, or other fluid leaks.
Also, if gasoline fumes are detected or if fuel or
brake fluid leaks are suspected, the cause should
be located and corrected immediately.
ONLY use the driver’s side floor mat on the
driver’s side floor area. To check for interfer -
ence, with the vehicle properly parked with the
engine off, fully depress the accelerator, the
brake, and the clutch pedal (if present) to
check for interference. If your floor mat inter -
feres with the operation of any pedal, or is not
secure to the floor, remove the floor mat from
the vehicle and place the floor mat in your
trunk.
ONLY use the passenger’s side floor mat on
the passenger’s side floor area.
ALWAYS make sure objects cannot fall or slide
into the driver’s side floor area when the
vehicle is moving. Objects can become
trapped under accelerator, brake, or clutch
pedals and could cause a loss of vehicle
control.
WARNING!
NEVER place any objects under the floor mat
(e.g., towels, keys, etc.). These objects could
change the position of the floor mat and may
cause interference with the accelerator,
brake, or clutch pedals.
If the vehicle carpet has been removed and
re-installed, always properly attach carpet to
the floor and check the floor mat fasteners are
secure to the vehicle carpet. Fully depress
each pedal to check for interference with the
accelerator, brake, or clutch pedals then
re-install the floor mats.
It is recommended to only use mild soap and
water to clean your floor mats. After cleaning,
always check your floor mat has been properly
installed and is secured to your vehicle using
the floor mat fasteners by lightly pulling mat.
WARNING!

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IN CASE OF EMERGENCY261
5. Remove funnel from filler pipe, clean off prior to putting back in the spare tire storage area.
IF YOUR ENGINE OVERHEATS
If the vehicle is overheating, it will need to be
serviced by an authorized dealer.
In any of the following situations, you can reduce
the potential for overheating your engine by taking
the appropriate action.
On highways — slow down.
In city traffic — while stopped, place the trans -
mission 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.
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!
Never have any smoking materials lit in or
near the vehicle when the fuel door is open or
the tank is being filled.
Never add fuel when the engine is running.
This is in violation of most state and federal
fire regulations and may cause the Malfunc -
tion Indicator Light to turn on.
A fire may result if fuel is pumped into a
portable container that is inside of a vehicle.
You could be burned. Always place fuel
containers on the ground while filling.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.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.
7

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267
SERVICING AND MAINTENANCE
SCHEDULED SERVICING
Your vehicle is equipped with an automatic oil
change indicator system. The oil change indicator
system will remind you that it is time to take your
vehicle in for scheduled maintenance.
Based on engine operation conditions, the oil
change indicator message will illuminate in the
instrument cluster. This means that service is
required for your vehicle. Operating conditions
such as frequent short-trips, trailer tow and
extremely hot or cold ambient temperatures will
influence when the “Change Oil” or “Oil Change
Required” message is displayed. Have your vehicle
serviced as soon as possible, within the next
500 miles (805 km).An authorized dealer will reset the oil change
indicator message after completing the scheduled
oil change. If a scheduled oil change is performed
by someone other than an authorized dealer, the
message can be reset by referring to the steps
described under Instrument Cluster Display
Ú
page 77.
NOTE:Under no circumstances should oil change
intervals exceed 10,000 miles (16,000 km), one
year or 350 hours of engine run time, whichever
comes first. The 350 hours of engine run or idle
time is generally only a concern for fleet
customers.
NOTE:The Oil Change Indicator will not illuminate under
these conditions. Once A Month Or Before A Long Trip:
Check engine oil level.
Check windshield washer fluid level.
Check the tire inflation pressures and look for
unusual wear or damage. Rotate tires at the first
sign of irregular wear, even if it occurs before
the oil indicator system turns on.
Check the fluid levels of the coolant reservoir,
and brake master cylinder reservoir, and fill as
needed.
Check function of all interior and exterior lights.
8

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270SERVICING AND MAINTENANCE
Replace spark plugs.
1X
Flush and replace the engine coolant at
10 years or 150,000 miles (240,000 km)
whichever comes first. X
X
Inspect and replace PCV valve if
necessary. X
1. The spark plug change interval is mileage based only; yearly intervals do not apply.
Mileage or time passed
(whichever comes first)
20,000
30,000
40,000
50,000
60,000
70,000
80,000
90,000
100,000
110,000
120,000
130,000
140,000
150,000
Or Years: 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Or Kilometers:
32,000
48,000
64,000
80,000
96,000
112,000
128,000
144,000
160,000
176,000
192,000
208,000
224,000
240,000
WARNING!
You can be badly injured working on or around a motor vehicle. Do only service work for which you have the knowledge and the right equipment.
If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.
Failure to properly inspect and maintain your vehicle could result in a component malfunction and effect vehicle handling and performance.
This could cause an accident.

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SERVICING AND MAINTENANCE271
ENGINE COMPARTMENT
2.4L ENGINE
1 — Engine Air Cleaner Filter 6 — Engine Oil Dipstick
2 — Engine Oil Fill 7 — Coolant Pressure Bottle Cap
3 — Brake Fluid Reservoir Cap 8 — Secondary Battery
4 — Battery 9 — Washer Fluid Reservoir Cap
5 — Power Distribution Center (Fuses)
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