Lexus GX 460 2020 Owner's Manual page 424

Automatic mode for air intake control (vehicles with rear air conditioning system)
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In automatic mode, the system detects exhaust gas and other pollutants and automati-
cally switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
When the outside temperature is low
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The dehumidification function may not operate even when "A/C" is touched.
Ventilation and air conditioning odors
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To let fresh air in, set the air conditioning system to the outside air mode.
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During use, various odors from inside and outside the vehicle may enter into and accu-
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mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
To reduce potential odors from occurring:
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• It is recommended that the air conditioning system be set to outside air mode prior
to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time immediately
after the air conditioning system is started in automatic mode.
Air conditioning filter
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P. 521
Customization
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Settings (e.g. A/C automatic mode switch operation) can be changed.
(Customizable features: P. 600)
GX460_OM_OM60R28E_(GE)
5-1. Using the air conditioning system and defogger
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