Lexus RX450H Navigation System Owner's Manual page 328

1. AIR CONDITIONING SYSTEM OPERATION
INFORMATION
●When the outside temperature exceeds
75F (24C) and the air conditioning
system is on
• In order to reduce the air conditioning
power consumption, the air condition-
ing system may switch to recirculated
air mode automatically. This may also
reduce fuel consumption.
• Recirculated air mode is selected as a
default mode when the "POWER"
<"ENGINE START STOP"> switch is
turned to ON <IGNITION ON> mode.
• It is possible to switch to outside air
mode at any time by pressing the air
intake control button.
●Window defogger feature
• Recirculated air mode may automati-
cally switch to outside air mode in situa-
tions where the windows need to be
defogged.
●When outside temperature approaches
32F (0C)
• The air conditioning system may not
operate even when "A/C" is selected.
●Automatic air intake change mode
In automatic mode, the system automati-
cally switches between recirculated air
and outside air modes according to
whether the system detects harmful sub-
stances such as exhaust gas in the air out-
side.
If automatic mode is selected when only
the fans are operating, the air condition-
ing system will turn on automatically.
●Air conditioning filter
• The air conditioning filter may clog after
long use. The filter may need to be
replaced if the air flow of the air condi-
tioner and heater experiences extreme
reductions in operating efficiency, or if
the windows become to fog up easily.
(For details, refer to "Owner' s Manual".)
●Customization
• Settings can be changed. (For details,
refer to "Owner' s Manual".)
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