2004 CHRYSLER PACIFICA Owners Manual

²The ªDELAYº symbol will flash to indicate that the
feature as been disabled.
This feature may be enabled using the following proce-
dure:
²Press and hold the Heated Rear Window and Auto HI
buttons for 5 seconds.
²The ªDELAYº symbol will flash to indicate that the
feature as been enabled.
Power Button
This button turns the entire system ON/OFF. When the
system is turned on it will return to the previous settings.
Dual/Single Zone Operation
When9DUAL9is displayed in the ATC control unit, the
driver and passenger air outlet temperatures can be
individually adjusted from the two independent9TEMP9
buttons. When a front seat passenger is not present,
pressing the9DUAL9button will disable the passenger'sinfrared sensor and control the entire system based only
on the driver's temperature setting. The outside tempera-
ture will replace the passenger's temperature setting in
the display. Pressing the9DUAL9button a second time or
adjusting the passenger's9TEMP9button will reactivate
the passenger's infrared sensor and return the system to
dual independent temperature operation.
Manual Operation
This system offers a full complement of manual override
features. The indicator light in both the9AUTO HI9or
9AUTO LO9buttons will turn off when the system is
being used in the manual mode. The fan speed, airflow
distribution, and outside air/recirculated air can be
manually adjusted.
NOTE:Each of these features can be operate indepen-
dently from each other. If any one feature is controlled
manually, the remaining features will continue to operate
automatically.
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4

The front blower control can be set to any fixed
blower speed by pressing the rocker switch up or
down. This allows the front occupants to control the
volume of air circulated in the vehicle and cancel the auto
mode. The fan will now operate at a fixed speed until
additional speeds are selected or until either the9AUTO
HI9or9AUTO LO9buttons are pressed. The system will
continue to automatically adjust air temperature and
airflow distribution.
The operator can also select the direction of the air by
pressing the mode control rocker switch located to the
left of the A/C button and selecting one of the following
positions.Panel Mode
Air comes from the outlets in the instrument panel. Each
of these outlets can be individually adjusted to direct the
flow of air. Moving the knob up, down, left, or right will
direct the air accordingly. The thumbwheel next to each
outlet can be rotated to reduce or shut off the air flow
from these outlets.
186 UNDERSTANDING YOUR INSTRUMENT PANEL

Bi-Level Mode
Air comes from both the instrument panel outlets and
floor outlets. A slight amount of air is also directed
through the defrost and side window demister 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.
UNDERSTANDING YOUR INSTRUMENT PANEL 187
4

Mix Mode
Air comes from the floor, defrost and side window
demist outlets. This mode is not used when operating in
either9AUTO HI9or9AUTO LO9. This mode should be
used when airflow to the floor and windshield is desired.Defrost Mode
Air comes from the windshield and side window demist
outlets. Use this setting when necessary to defrost your
windshield and side windows. If a fog or mist on the
windshield or side glass starts to impair visibility, press
the front blower button and increase the fan speed to
maximum.
188 UNDERSTANDING YOUR INSTRUMENT PANEL

NOTE:While operating in9AUTO HI9or9AUTO LO9,
the system will not automatically sense the presence fog,
mist, or ice on the windshield. The defrost button must be
pressed to clear the windshield and side glass.
Depress the ªA/Cº button to turn on and off the
air conditioning during manual operation only.
Cool dehumidified air comes through the outlets
selected by the Mode Control. To turn off the air condi-
tioning, press the A/C button a second time. The A/C
symbol in the display will turn off.
NOTE:If a fog or mist appears on the windshield or
side glass, press the ªA/Cº button to engage the com-
pressor or press the defrost button. If a fog or mist on the
windshield or side glass starts to impair visibility, press
the front blower button and increase the fan speed to
maximum.Recirculation Control
When the outside air contains smoke, odors,
high humidity, or if rapid cooling is desired
you may wish to recirculate interior air by
pressing the recirculation button. The recircu-
lation mode should only be used temporarily. The recir-
culate symbol will illuminate in the display when this
button is selected. Push the button a second time to allow
outside air into the vehicle.
NOTE:In cold weather, use of the recirculation mode
may lead to excessive window fogging. The recirculation
mode is not allowed in the Mix and Defrost modes to
improve window clearing operation. Recirculation will
be disabled automatically if these modes are selected.
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4

A/C Recirculation Programming
The recirculation control is programmed to cancel the
recirculation mode when the ignition key is turned OFF
and will reset to the outside air mode when the ignition
key is turned ªONº. The frequent use of outside air will
help keep odors from building up within the air
conditioner-heater housing. It is recommended that the
recirculation mode be used as little as possible, especially
in humid climates.
For hot and dry climates, or people who are allergic to
pollen and find frequent use of the recirculation mode
necessary, the recirculation mode can be programmed to
not automatically reset to the outside mode by using the
following procedures:
²Turn the ignition switch to the OFF position.
²Press and hold the recirculation button.
²While holding the recirculation button, turn the igni-
tion switch to the ªRUNº position.
²Continue holding the recirculation button for 4 sec-
onds, then release.
The recirculation control is now programmed so that the
recirculation mode willnotreset to the outside air mode
when the engine is restarted. The recirculation program-
ming can be changed back by repeating this procedure.
190 UNDERSTANDING YOUR INSTRUMENT PANEL

Rear Fan Operation
To operate the rear fan, press the9REAR9button. The first
time this button is pressed the9REAR AUTO9display
will illuminate indicating that the rear fan speed is
automatically controlled. To manually control the rear
fan speed, press the9REAR9button again and only
9REAR9will illuminate in the display. This allows the rear
seat occupants to control the rear fan speed using the
switch located in the center console between the second
row seats. By pressing the9REAR9button a third time,
the rear fan will shut off.
When the ATC display reads9REAR AUTO9or when the
rear fan is off, the switch located in the center console
between the second row seats is not functional. When the
ATC display reads9REAR9, only the rear seat occupants
can control the rear fan speed from the rear switch. When
in the ªREARº mode, the rear occupants can set the rearswitch to any fan speed including9OFF9,or9AUTO9.
While in the9AUTO9position, the rear fan speed will be
automatically controlled.
Summer Operation
The engine cooling system in air conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A 50% solution of ethylene
glycol antifreeze coolant in water is recommended. Refer
to section 7, Maintenance Procedures, of this manual for
proper coolant selection.
Winter Operation
To insure the best possible heater and defroster perfor-
mance, make sure the engine cooling system is function-
ing properly and the proper amount, type, and concen-
tration of coolant is used. Refer to section 7, Maintenance
Procedures, of this manual for proper coolant selection.
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4

Use of the air Recirculation mode during winter months
is not recommended because it may cause window
fogging.
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 insure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
Window Fogging
Vehicle windows tend to fog on the inside in mild rainy
or humid weather. To clear the windows, use the A/C
button to reduce the humidity inside the vehicle.
Fogging on the inside of the windshield can be quickly
removed by pressing the defrost button and increasing
the blower speed.Do not use the Recirculation mode without the A/C
button for long periods as fogging may occur.
Outside Air Intake
Before driving, always make sure the air intake located
directly in front of the windshield is free of obstructions
such as leaves, ice, or snow, which could reduce airflow
and/or plug the water drain tube inside the plenum.
A/C Air Filter
The climate control system filters out dust, pollen and
some odors from the air. Strong odors can not be totally
filtered out. Refer to section 7 ªAir Conditioningº for
filter replacement instructions.
192 UNDERSTANDING YOUR INSTRUMENT PANEL