2012 JEEP GRAND CHEROKEE air conditioning

NOTE:If you do not say a command within a few
seconds, the system will present you with a list of
options.
If you ever wish to interrupt the system while it lists
options, press the Voice Command
button, listen
for the beep, and say your command.
Pressing the Voice Command
button while the
system is speaking is known as “barging in.” The system
will be interrupted, and after the beep, you can add or
change commands. This will become helpful once you
start to learn the options.
NOTE:At any time, you can say the words “Cancel”,
“Help” or “Main Menu”.
These commands are universal and can be used from any
menu. All other commands can be used depending upon
the active application.When using this system, you should speak clearly and at
a normal speaking volume.
The system will best recognize your speech if the win-
dows are closed, and the heater/air conditioning fan is
set to low.
At any point, if the system does not recognize one of your
commands, you will be prompted to repeat it.
To hear the first available Menu, press the Voice
Command
button and say “Help” or “Main
Menu”.
Commands
The Voice Command system understands two types of
commands. Universal commands are available at all
times. Local commands are available if the supported
radio mode is active.
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

RADIO OPERATION AND MOBILE PHONES
Under certain conditions, the mobile phone being on in
your vehicle can cause erratic or noisy performance from
your radio. This condition may be lessened or eliminated
by relocating the mobile phone antenna. This condition is
not harmful to the radio. If your radio performance does
not satisfactorily “clear” by the repositioning of the
antenna, it is recommended that the radio volume be
turned down or off during mobile phone operation when
not using Uconnect™ (if equipped).
CLIMATE CONTROLS
The air conditioning and heating system is designed to
make you comfortable in all types of weather.
Dual-Zone Automatic Temperature Control (ATC)
— If Equipped
•
The Automatic Temperature Control (ATC) allows
both driver and front passenger seat occupants to
select individual comfort settings.
•When occupants in the vehicle select an Auto mode
operation, Auto blower operation is set by using a
push button on the control unit and a comfort tem-
perature setting by using the temperature up and
down buttons.
•The system provides set-and-forget operation for op-
timum comfort and convenience.
•The system can be controlled manually, if desired.
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UNDERSTANDING YOUR INSTRUMENT PANEL 361

The ATC system automatically maintains the interior
comfort level desired by the driver and passenger.1. A/C Button
Press and release to change the current Air Conditioning
(A/C) setting, the indicator illuminates when A/C is ON.
Performing this function will cause the ATC to switch
into manual mode.
2. Recirculation Control Button
Press and release to change the current setting, the
indicator illuminates when ON.
3. Left Front Seat Occupant Temperature Display
This display shows the temperature setting for the left
front seat occupant.
4. Mode Display
This display shows the current Mode selection (Panel,
Bi-Level, Floor, Mix).
5. Blower Control Display
This display shows the current Blower speed selection.
Automatic Temperature Control (ATC) Panel
362 UNDERSTANDING YOUR INSTRUMENT PANEL

Bi-Level Mode
Air comes from the instrument panel outlets, floor
outlets and defrost outlets.
NOTE:In many temperature positions, the BI-LEVEL
mode is designed to provide cooler air out of the panel
outlets and warmer air from the floor outlets.
Floor Mode
Air comes from the floor outlets. A slight amount of
air is directed through the defrost and side window
demister outlets.
Mix Mode
Air comes from the floor, defrost and side window
demist outlets. This mode works best in cold or
snowy conditions. It allows you to stay comfortable
while keeping the windshield clear.Defrost Mode
Air comes from the windshield and side window
demist outlets. Use Defrost mode with maximum
temperature settings for best windshield and side win-
dow defrosting. When the defrost mode is selected, the
blower will automatically default to medium-high unless
the blower is controlled manually.
NOTE:While operating in the other modes, the system
will not automatically sense the presence of fog, mist or
ice on the windshield. Defrost mode must be manually
selected to clear the windshield and side glass.
Air Conditioning (A/C)
The Air Conditioning (A/C) button allows the operator
to manually activate or deactivate the air conditioning
system. When in A/C mode and the ATC is set to a cool
temperature, dehumidified air flows through the air
366 UNDERSTANDING YOUR INSTRUMENT PANEL

outlets. If Economy mode is desired, press the A/C
button to turn off the A/C mode in the ATC display and
deactivate the A/C system.
NOTE:
•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.
Recirculation Control
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.
Recirculation mode should only be used temporarily. The
recirculation LED will illuminate when this button isselected. Push the button a second time to turn off the
Recirculation mode LED and allow outside air into the
vehicle.
NOTE:In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in the Floor/Defrost Mix and
Defrost modes to improve window clearing operation.
Recirculation will be disabled automatically if these
modes are selected.
Operating Tips
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it’s rainy or humid. In most cases,
turning the air conditioning (pressing the A/C button) on
will clear the fog. Adjust the temperature control, air
direction, and blower speed to maintain comfort.
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UNDERSTANDING YOUR INSTRUMENT PANEL 367

As the temperature gets colder, it may be necessary to
direct air onto the windshield. Adjust the temperature
control and blower speed to maintain comfort. Higher
blower speeds will reduce fogging. Interior fogging on
the windshield can be quickly removed by selecting the
DEFROST mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
NOTE:In some cases during high temperature trailer
tow operation the Air Conditioning system performance
may be reduced. This is to help protect the engine from
overheating during the high load condition.Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.
Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other
obstructions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will ensure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
368 UNDERSTANDING YOUR INSTRUMENT PANEL

Automatic Transmission
The DRIVE range can be selected when towing. How-
ever, if frequent shifting occurs while in this range, use
the AutoStickfeature to select a lower gear.
NOTE:Using a lower gear while operating the vehicle
under heavy operating conditions will improve perfor-
mance and extend transmission life by reducing exces-
sive shifting and heat build up. This action will also
provide better engine braking.
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. Refer to the “Main-
tenance Schedule” for the proper maintenance intervals.
Electronic Speed Control – If Equipped

Do not use in hilly terrain or with heavy loads.
When using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
Use speed control in flat terrain and with light loads to
maximize fuel efficiency.
Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
City Driving
When stopped for short periods of time, shift the trans-
mission into NEUTRAL and increase engine idle speed.
Highway Driving
Reduce speed.
Air Conditioning
Turn off temporarily.
456 STARTING AND OPERATING

WARNING! (Continued)
•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.
•Do not allow vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
•Do not connect the cable to the negative post (-) of
the discharged battery. The resulting electrical
spark could cause the battery to explode and could
result in personal injury.
Air Conditioner Maintenance
For best possible performance, your air conditioner
should be checked and serviced by an authorized dealer
at the start of each warm season. This service shouldinclude cleaning of the condenser fins and a performance
test. Drive belt tension should also be checked at this
time.
CAUTION!
Do not use chemical flushes in your air conditioning
system as the chemicals can damage your air condi-
tioning components. Such damage is not covered by
the New Vehicle Limited Warranty.
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