Ram Trucks 2015 Cargo Van Commercial - Owner Manual - Manual (Page 426)

NOTE:
• If the system is in Mix or Defrost Mode, the A/C can
be turned off, but the A/C system shall remain active
to prevent fogging of the windows.
• If not operating in AUTO mode, 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.
• If fog or mist appears on the windshield or side glass,
select Defrost mode and adjust blower speed if
needed.
Recirculation
Recirculation Control Button
Push this button to choose between outside air intake or
recirculation of the air inside the vehicle. An indicator
light will illuminate when you are in Recirculation mode.
Only use the Recirculation mode to temporarily block out
any outside odors, smoke, or dust, and to cool the interior
rapidly upon initial start-up in very hot or humid
weather.
NOTE:
• If the Recirculation button is pressed when the system
is in Defrost mode the Recirculation LED indicator will
flash three times to indicate Recirculation mode is not
allowed.
• 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.
• In cold or damp weather, the use of the Recirculation
mode will cause windows to fog on the inside because
of moisture buildup inside the vehicle. For maximum
defogging, select the outside air position.
424 UNDERSTANDING YOUR INSTRUMENT PANEL