2006 DODGE GRAND CARAVAN Owners Manual

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 keep-
ing the windshield clear.Floor Outlets Mix OutletsUNDERSTANDING YOUR INSTRUMENT PANEL 289
4

Defrost Mode
Air comes from the windshield and side window demist
outlets. Use this setting when necessary to defrost your
windshield and side windows. NOTE: While operating in either  Auto HI  or  Auto
LO  , 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.
The  snowflake  or  a/c  button allows the opera-
tor to manually activate or deactivate the air
conditioning system. When the snowflake symbol
in the ATC display is on, cool, dehumidified air flows
through the air outlets. If economy mode is desired, press
the snowflake button to turn off the snowflake icon in the
ATC display and deactivate the air conditioning system.
Note: While operating in  auto hi  or  auto lo  , the air
conditioning system is always activated. If fog, or mist
appears on the windshield or side glass, select  defrost 
mode and increase blower speed.Defrost Outlets290 UNDERSTANDING YOUR INSTRUMENT PANEL

Recirculation Control
When 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 recirculation
mode should only be used temporarily. The recirculation
symbol will illuminate in the display when this button is
selected. Push the button a second time to turn off the
recirculation icon in the display and 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. Auxiliary Rear Automatic Temperature Control —
If Equipped
The Rear Automatic Temperature Control System has
floor air outlets to the rear of the right side sliding door
and overhead outlets at each outboard rear seating
position. The system provides heated air through the
floor outlets or cool, dehumidified air through the head-
liner outlets.
The “ REAR SYSTEM ” knob for the Rear Automatic
Temperature Control System is on the front ATC control
unit located on the instrument panel.
Selecting the “ AUTO ” position for the Rear Automatic
Temperature Control System from the front ATC control
unit, illuminates a “ LOCK ” symbol in the rear display.
The rear temperature and air source are controlled from
the front ATC control unit.
The “ REAR SYSTEM ” knob on the front ATC control unit
has three positions, “ REAR CONTROL ” , “ OFF ” , andUNDERSTANDING YOUR INSTRUMENT PANEL 291
4

“ AUTO ” . Only when the “ REAR SYSTEM ” knob is in the
“ REAR CONTROL ” position do the second seat occu-
pants have control of the Rear Automatic Temperature
Control System.
The Rear Automatic Temperature Control System is
located in the headliner near the center of the vehicle. Operation of the rear system is quite simple. Begin by
rotating the rear system center control knob on the front
ATC control unit to the “ REAR CONTROL ” position, this
illuminates an “ UNLOCK ” symbol in the rear display.
Next, rotate the Rear Blower Control and the Rear Mode
Control to the “ AUTO ” positions. Select the temperature
you would like the system to maintain by pressing the
Rear Temperature Control button. Once the desired tem-
perature is displayed, the system will achieve and main-
tain that comfort level automatically. 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 fan speed to provide
comfort as quickly as possible.Rear Automatic Temperature Control292 UNDERSTANDING YOUR INSTRUMENT PANEL

• The temperature can be displayed in U.S. or Metric by
selecting the US/M customer programmable feature.
Refer to the “ Overhead Console-Customer Program-
mable Features ” in Section 3 of this manual.
Rear Blower Control
The rear blower control, located in
the headliner near the center of
the vehicle has an “ OFF ” ,
“ AUTO ” and a range of blower
speeds.
The rear blower control knob can be manually set to
“ OFF ” or any fixed blower speed by rotating the knob
from low to high. This allows the rear seat occupants to
control the volume of air circulated in the rear of the
vehicle. CAUTION!Interior air enters the Rear Automatic Temperature
Control System through an intake grille located in
the passenger side trim panel behind the third seat.
The heater outlets are located in the passenger side
trim panel just behind the sliding door. Do not block
or place objects directly in front of the inlet grille or
heater outlets. The electrical system could overload
causing damage to the blower motor.
Rear Temperature Control
To change the temperature in the rear of the vehicle, press
the temperature control button down for cold and up for
heated air. UNDERSTANDING YOUR INSTRUMENT PANEL 293
4

Rear Mode Control
The Rear Mode Control, located in
the headliner near the center of
the vehicle can be used to select
between Auto, Headliner, Bi-
Level and Floor modes.
Auto Mode
The rear system automatically maintains the correct
mode and comfort level desired by the rear seat occu-
pants.
Floor Mode
Air comes from the floor outlets. Bi-Level Mode
Air comes from both the headliner outlets and the
floor outlets.
NOTE: In many temperature positions, the bi-level
mode is designed to provide cooler air out of the head-
liner outlets and warmer air from the floor outlets.
Headliner Mode
Air comes from the outlets in the headliner. Each of
these outlets can be individually adjusted to direct
the flow of air. Moving the air vane knob on the outlets to
one side will shut off the air flow.
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 ethylene294 UNDERSTANDING YOUR INSTRUMENT PANEL

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.
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, 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 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. UNDERSTANDING YOUR INSTRUMENT PANEL 295
4

Operating Tips A/C Air Filter — If Equipped
The climate control system filters out dust, pollen and
some odors from the air. Strong odors can not be totally
filtered out. Refer to MAINTAINING YOUR VEHICLE,
“ Air Conditioner Maintenance ” for filter replacement
instructions.
REAR WINDOW FEATURES
Intermittent Rear Wiper Operation — Manual
Temperature Control Only
The controls are located on the Manual Tempera-
ture Control head above the front blower control.
When the button is pressed and released and the
Ignition Switch in ON, the rear wiper will operate at a
fixed interval of about 8 seconds. As vehicle speed
increases, the time delay will shorten. The LED indicator
will light when the wiper is ON. Pressing and releasing
the button again with turn the wiper off.296 UNDERSTANDING YOUR INSTRUMENT PANEL