Dodge 2010 Challenger SRT8, Owner'S Manual

Page: 232 / 420

conditioning. An indicator in the button illuminates
when manual compressor operation is selected.
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 conditions.
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 solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in Section 7 for proper
coolant selection.
Winter Operation
Use of the air Recirculation mode during Winter months is
not recommended because it may cause window fogging.
232 UNDERSTANDING YOUR INSTRUMENT PANEL