cooling JEEP CHEROKEE 2017 KL / 5.G User Guide

MAX A/C
MAX A/C sets the control for maximum cooling perfor-
mance.
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
When outside air contains smoke, odors, or high humidity,
or if rapid cooling is desired, you may wish to recirculate
interior air by pressing the Recirculation control button.
The recirculation indicator will illuminate when this button
is selected. Press the button a second time to turn off the
Recirculation mode and allow outside air into the vehicle.NOTE:
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. On systems with Manual Climate Controls,
the Recirculation mode is not allowed in Defrost mode to
improve window clearing operation. Recirculation will be
disabled automatically if this mode is selected. Attempting
to use Recirculation while in this mode will cause the LED
in the control button to blink and then turn off.
3
GETTING TO KNOW YOUR VEHICLE 91

Operating Tips
NOTE: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 perfor-
mance, 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
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 dam-
age 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 De-
frost 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 obstructions 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 your authorized dealer to service your
cabin air filter, and to have it replaced when needed.
3
GETTING TO KNOW YOUR VEHICLE 93

Instrument Cluster Descriptions
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. Refer to “Instrument Cluster Dis-
play” in “Getting To Know Your Instrument Panel” for
further information.
3. Speedometer •Indicates vehicle speed.
4. Fuel Gauge •The fuel gauge shows the level of fuel in the fuel tank
when the ignition is in the ON/RUN position.
•
The fuel pump symbol points to the side of the
vehicle where the fuel door is located.
5. Temperature Gauge
•The temperature gauge shows engine coolant tem-
perature. Any reading within the normal range indi-
cates that the engine cooling system is operating
satisfactorily.
• The gauge 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.
WARNING!
A hot engine cooling system is dangerous. You or
others could be badly burned by steam or boiling
coolant. You may want to call an authorized dealer for
service if your vehicle overheats.
130 GETTING TO KNOW YOUR INSTRUMENT PANEL

CAUTION!
Driving with a hot engine cooling system could dam-
age 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.
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 STOP/OFF position (and the key removed,
for vehicles with mechanical key), 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 a driver interac-
tive display located on the instrument panel, your instru-
ment 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.
Instrument Cluster Display Location And Controls
The instrument cluster display features a driver-interactive
display that is located in the instrument cluster.
Instrument Cluster Display Location
4
GETTING TO KNOW YOUR INSTRUMENT PANEL 131

SAFETY TIPS
Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO
AREA.
WARNING!
•Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build-up may
cause serious injury or death.
• It is extremely dangerous to ride in a cargo area,
inside or outside of a vehicle. In a collision, people
riding in these areas are more likely to be seriously
injured or killed.
• Do not allow people to ride in any area of your
vehicle that is not equipped with seats and seat belts.
• Be sure everyone in your vehicle is in a seat and
using a seat belt properly.
Exhaust Gas
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 even-
tually 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 recirculation mode.
• If it is necessary to sit in a parked vehicle with the
engine running, adjust your heating or cooling con-
trols to force outside air into the vehicle. Set the
blower at high speed.
252 SAFETY

STOP/START SYSTEM — IF EQUIPPED
The Stop/Start function was developed to reduce fuel
consumption. The system will stop the engine automati-
cally during a vehicle stop if the required conditions are
met. Releasing the brake pedal or pressing the accelerator
pedal will automatically restart the engine.
Automatic Mode
The Stop/Start feature is enabled after every normal cus-
tomer 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 “Au-
tostop” 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
instrument cluster display within the Stop/Start section.
Refer to “Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information.
• 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.
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.
6
STARTING AND OPERATING 287

Cooling System
To reduce potential for engine and transmission overheat-
ing, take the following actions:
City Driving
When stopped for short periods, shift the transmission into
NEUTRAL and increase engine idle speed.Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)
Towing This Vehicle Behind Another Vehicle
4X4 Models
Towing
Condition Wheels
OFF the Ground Front-Wheel
Drive
(FWD)
Models 1-Speed Power
Transfer Unit 2-Speed Power Transfer Unit
Flat Tow NONE NOT
ALLOWED NOT
ALLOWED See Instructions:
•
Before towing, See your authorized dealer for the
Mopar flat tow wiring kit
• It is recommended to charge the battery of the
towed vehicle during recreational towing
• Transmission in PARK
• Power transfer unit in NEUTRAL (N)
• To w i n forward direction
378 STARTING AND OPERATING

WARNING!
Do not attempt jump-starting if the battery is frozen. It
could rupture or explode and cause personal injury.
CAUTION!
Do not use a portable battery booster pack or any other
booster source with a system voltage greater than 12
Volts or damage to the battery, starter motor, alternator
or electrical system may occur.
Preparations For Jump-Start
The battery in your vehicle is located in the front of the
engine compartment, behind the left headlight assembly.
NOTE:The positive battery post is covered with a protec-
tive cap. Lift up on the cap to gain access to the positive
battery post.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.
Positive Battery Post
432 IN CASE OF EMERGENCY

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating your engine by taking the appro-
priate action.
•On the highways — slow down.
• In city traffic — while stopped, put transmission in
NEUTRAL, but do not increase 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
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. 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.
436 IN CASE OF EMERGENCY

SERVICING AND MAINTENANCE
CONTENTS
SCHEDULED SERVICING .................447
▫ Maintenance Plan ...................... .449
▫ Heavy Duty Use Of The Vehicle ............450
 ENGINE COMPARTMENT .................451
▫ 2.4L Compartment ..................... .451
▫ 3.2L Compartment ..................... .452
▫ Checking Oil Level .....................453
▫ Adding Washer Fluid ...................453
▫ Maintenance-Free Battery .................454
 DEALER SERVICE ...................... .455
▫ Engine Oil .......................... .455
▫ Engine Oil Filter ...................... .457
▫ Engine Air Cleaner Filter .................457
▫ Accessory Drive Belt Inspection ............461▫
Air Conditioner Maintenance ..............462
▫ Body Lubrication ..................... .466
▫ Windshield Wiper Blades .................467
▫ Exhaust System ....................... .472
▫ Cooling System ....................... .474
▫ Brake System ........................ .478
▫ Automatic Transmission ..................479
 RAISING THE VEHICLE ..................481
 TIRES ............................... .481
▫ Tire Safety Information ..................481
▫ Tires — General Information ..............489
▫ Tire Types ........................... .495
▫ Spar

e Tires — If Equipped ................496
▫ Wheel And Wheel Trim Care ..............498
8