Dodge 2009 Challenger - Manual (Page 235)

• Defrost
Air is directed through the windshield and side
window demist outlets. Use this mode with maxi-
mum blower and temperature settings for best wind-
shield and side window defrosting.
NOTE: The air conditioning compressor operates in
Mix, Defrost, and Floor or a blend of these modes, even
if the Air Conditioning Snowflake button is not pressed.
This dehumidifies the air to help dry the windshield. To
improve fuel economy, use these modes only when
necessary.
• Recirculation Control
Use this button to block the flow of outside air
from coming into the passenger compartment.
A light will illuminate when the system is in
recirculation mode. Use the recirculation mode
to provide maximum A/C performance in hot ambient
conditions, or to block outside odors, dust, etc.
NOTE:
• Continuous use of the recirculation mode may make
the inside air stuffy and window fogging may occur.
Extended use of this mode is not recommended.
• The use of the recirculation mode in cold or damp
weather may cause windows to fog on the inside,
because of moisture build-up inside the vehicle. Select
the Outside Air position for maximum defogging.
• The A/C will engage automatically to prevent fogging
when the recirculation button is pressed.
• The A/C can be deselected manually without disturb-
ing the mode control selection.
Air Conditioning Control
Use this button to engage the Air Conditioning. A
light will illuminate when the Air Conditioning
System is engaged.
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UNDERSTANDING YOUR INSTRUMENT PANEL 233