2009 CHRYSLER 300 Owners Manual

Temperature Control
The rotary knob in the center controls
air temperature. Rotate the control to
the left for cooler air temperature and
to the right for warmer air tempera-
ture. Rotating the control to the ex-
treme left provides the coldest setting.
Rotating the control to the extreme
right provides the warmest setting.
Mode Control
The rotary knob on the right controls
airflow distribution. Dots between
each of the mode selections identify
intermediate modes that allow the op-
erator to fine-tune airflow distribu-
tion. The mode settings are as follows:
•Defrost
Air is directed to the windshield through the
outlets at the base of the windshield. Air is also
directed to the front door windows through the side
window demister grilles.
NOTE:To improve fuel economy, leave in defrost only
when necessary.
•Defrost/Floor
Air flows through the front and rear floor outlets
and the outlets at the base of the windshield. Air is
also directed to the front door windows through the
side window demister grilles.
•Floor
Air flows through the floor outlets located under
the instrument panel and into the rear seating area
through vents under the front seats.
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•Bi-Level
Air flows through the outlets located in the instru-
ment panel and through the outlets located on the
floor. Air flows through the registers in the back of the
center console to the rear seat passengers. These registers
can be closed to partially block airflow.
•Panel
Air flows through the outlets located in the instru-
ment panel. Air flows through the registers in the
back of the center console to the rear seat passengers.
These registers can be closed to block airflow.
•Recirculation Control
The mode control knob also controls the recir-
culation feature. You can choose Bi-Level Re-
circulation air outlets, Panel Recirculation air
outlets, or a mix or both while in this mode.
Normally, air enters from outside the vehicle. However,
when in Recirculation mode air inside the vehicle isre-used. Use this mode to cool the inside of the vehicle
rapidly. The Recirculation mode can also be used to
temporarily block out outside odors, smoke, and dust.
Air Conditioning Control
Press this button to turn on and turn off the air
conditioning. When the air conditioning is turned
on, cool dehumidified air will flow through the
outlets selected with the mode control. Press this button
a second time to turn off the air conditioning. An
indicator in the button will illuminate when compressor
operation is selected.
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Automatic Temperature Control — If Equipped
Automatic Operation
The Dual-Zone Climate Control System automatically
maintains the climate in the cabin of the vehicle at the
comfort levels desired by the driver and passenger.Operation of the system is quite simple. Begin by turning
the mode control knob (on the right) to AUTO, and place
the blower control knob (on the left) to either LO AUTO
or HI AUTO. The LO AUTO position should be used for
front seat occupants only. The HI AUTO position should
be used when more airflow is desired, or when rear seat
occupants are present. Then, dial in the temperature you
would like the system to maintain by rotating the driver
or passenger temperature control knob. Once the comfort
level is selected, the system will maintain that level
automatically using the heating system. Should the de-
sired comfort level require air conditioning, the system
will automatically make the adjustment.
You will experience the greatest efficiency by simply
allowing the system to function automatically. Selecting
the OFF position on the fan control stops the system
completely and closes the outside air intake.
Automatic Temperature Controls
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72°F (22°C) is the recommended setting for maximum
comfort for the average person; however, this may vary.
NOTE:The temperature setting can be adjusted at any
time without affecting automatic operation.
Air conditioning in this system is automatic.
Pressing the air conditioning control button while
in AUTO mode will cause the indicator in the
control button to flash three times and then turn off. This
indicates that the system is in AUTO mode and request-
ing the air conditioning is not necessary.
The system will automatically control recircu-
lation. However, pressing the recirculation con-
trol button will temporarily put the system in
Recirculation mode (10 minutes). This can be
used when outside conditions such as smoke, odors,
dust, or high humidity are present. Activating recircula-
tion will cause the indicator in the control button toilluminate. After 10 minutes, the system will return to
normal AUTO mode function and the indicator will turn
off.
NOTE:
•The surface of the climate control panel and the top
center of the instrument panel should be kept free of
debris due to the location of the climate control
sensors. Mud on the windshield may also cause poor
operation of this system.
•Extended use of recirculation may cause the windows
to fog. If the interior of the windows begin to fog, press
the recirculation button to return to outside air. Some
temp/humidity conditions will cause captured inte-
rior air to condense on windows and hamper visibility.
For this reason, the system will not allow recirculation
to be selected while in Defrost or Defrost/Floor mode.
Attempting to use the recirculation while in these
modes will cause the indicator in the control button to
blink and then turn off.
298 UNDERSTANDING YOUR INSTRUMENT PANEL

Manual Operation
This system offers a full complement of manual override
features, which consist of blower preferred automatic,
mode preferred automatic, or blower and mode preferred
automatic. This means the operator can override the
blower, the mode, or both. There is a manual blower
range for times when the AUTO setting is not desired.
The blower can be set to any fixed blower speed by
rotating the blower control knob (on the left).NOTE:Please read the automatic temperature control
operation chart that follows for details.
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The operator can override the AUTO mode setting to
change airflow distribution by rotating the mode control
knob (on the right) to one of the following positions.
•Defrost
Air is directed to the windshield through the
outlets at the base of the windshield. Air is also
directed to the front door windows through the side
window demister grilles.
•Defrost/Floor
Air flows through the front and rear floor outlets
and the outlets at the base of the windshield. Air is
also directed to the front door windows through the
side window demister grilles.
•Floor
Air flows through the floor outlets located under
the instrument panel and into the rear seating area
through vents under the front seats.
•Bi-Level
Air flows through the outlets located in the instru-
ment panel and through the outlets located on the
floor. Air flows through the registers in the back of the
center console to the rear seat passengers. These registers
can be closed to block airflow.
•Panel
Air flows through the outlets located in the instru-
ment panel. Air flows through the registers in the
back of the center console to the rear seat passengers.
These registers can be closed to block airflow.
•Air Conditioning Control
Press this button to turn on the air conditioning
during manual operation only. When the air con-
ditioning is turned on, cool dehumidified air will
flow through the outlets selected with the mode control
dial. Press this button a second time to turn off the air
conditioning. An indicator in the button illuminates
when manual compressor operation is selected.
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4

NOTE:To control the air conditioning manually, the
mode selector must be moved out of the AUTO position.
•Recirculation Control
This button can be used to block out smoke,
odors, dust, high humidity, or if rapid cooling
is desired. The Recirculation mode should only
be used temporarily. An indicator in the button
illuminates when the Recirculation mode is active. You
may use this feature separately.
NOTE:Extended use of recirculation may cause the
windows to fog. If the interior of the windows begins to
fog, press the recirculation button to return to outside air.
Some temp/humidity conditions will cause captured
interior air to condense on windows and hamper visibil-
ity. For this reason, the system will not allow recirculation
to be selected while in Defrost or Defrost/Floor mode.Attempting to use the recirculation while in these modes
will cause the indicator in the control button to blink and
then turn off.
Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
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 “Maintenance Procedures” in Section 7 for proper
coolant selection.
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