2019 Lexus GX460 Owner's Manual / LEXUS 2019 GX460 OWNER'S MANUAL (OM60Q84U)

GX460_OM_OM60Q84U_(U)
3935-1. Using the air conditioning system and defogger
5
Interior features
Touch to display the rear air conditioning control screen.
■Control screen
Adjust the fan speed setting
Adjust the rear seats temperature setting
Display the rear seat s temperature setting
Turn the fan off
Select to set automatic mode
■Using the automatic mode Touch “REAR AUTO”.
Touch to increase the temperature and to decrease the tem-
perature.
To stop the operatio n, touch “REAR OFF”.
■If the system is operated manually in automatic mode
If the fan speed setting is operated, the automatic mode indicator goes off.
However, automatic mode for functions other than that operated are main-
tained.
Changing the rear seat settings (veh icles with rear air conditioning sys-
tem)
Without a navigation systemWith a navigation system
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3945-1. Using the air conditioning system and defogger
GX460_OM_OM60Q84U_(U)
■Switching between outside air and recirculated air modes
Vehicles without rear air conditioning system
Press .
The mode switches between (recirculated air mode) and (outside
air mode) modes each time the button is pressed.
Vehicles with rear air conditioning system
Press .
The mode switches among (recirculated air mode), automatic and
(outside air mode) modes each time the button is pressed.
When the system is switched to automatic mode, the air conditioning system oper-
ates automatically.
■Defogging the windshield
Defoggers are used to defog the wi ndshield and front side windows.
Press .
Set the outside/recirculated air mode button to outside air mode if the recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side wind ows early, turn the air flow and tempera-
ture up.
To return to the previous mode, press again when the windshield is
defogged.
Other functions

GX460_OM_OM60Q84U_(U)
3955-1. Using the air conditioning system and defogger
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Interior features
■Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Press .
The defoggers will automatically turn off after a period of time.
■Micro dust and pollen filter mode
Pollen is removed from the air and the air flows to the upper part of the body.
Touch on the option control screen.
When the micro dust and pollen filter mo de is on, is displayed on the air
conditioning control screen.
In order to prevent the windshield from fo gging up when the outside air is cold, the
dehumidification function may operate.
The pollens are filtered out even if the mi cro dust and pollen filter mode is turned
off.
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice fr om building up on the windshield and
wiper blades.
Touch on the option control screen.
When the windshield wiper de-icer is on , is displayed on the air condition-
ing control screen.
The windshield wiper de-icer will automati cally turn off after a period of time.

3965-1. Using the air conditioning system and defogger
GX460_OM_OM60Q84U_(U)
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode. : Some models
■Adjusting the air flow direction and opening/closing the air outlets
Air outlets
Front outletsRear outlets (vehicles without
rear air conditioning system)
Direct air flow to the left or right, up or down.
Turn the knob to open or close the vent.
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GX460_OM_OM60Q84U_(U)
3975-1. Using the air conditioning system and defogger
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Interior features
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the engine switch to
IGNITION ON mode will recall that key’s registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically be registered to the electronic key that was used to unlock the vehicle.
The system may not operate correctly if more than one electronic key is in the vicinity or
if the smart access system with push-button start is used to unlock a passenger door.
Settings for the electronic key and th e corresponding door can be changed.
Contact your Lexus dealer.
■Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until wa rm or cool air is ready to flow immediately
after the “AUTO” button is pressed.
■When the outside temperature exceeds 75 F (24 C) and the air conditioning system
is on
●In order to reduce the air co nditioning power consumption, the air conditioning system
may switch to recirculated air mode automatically.
This may also reduce fuel consumption.
●Recirculated air mode is selected as a defaul t mode when the engine switch is turned to
IGNITION ON mode.
●It is possible to switch to outside air mode at any time by pressing or
.
■Fogging up of the windows
●The windows will easily fog up when the humidi ty in the vehicle is high. Touching “A/C”
on will dehumidify the air from the outl ets and defog the windshield effectively.
●If you turn “A/C” off, the windows may fog up more easily.
●The windows may fog up if the recirculated air mode is used.
■Outside/recirculated air mode
●When driving on dusty roads such as tunnels or in heavy traffic, set the outside/recircu-
lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from enteri ng the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature.

3985-1. Using the air conditioning system and defogger
GX460_OM_OM60Q84U_(U)
■Automatic mode for air intake control (vehicles with rear air conditioning system)
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
The dehumidification function may not operate even when “A/C” is touched.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into and accu-
mulate in the air conditioning system. This may then cause odor to be emitted from the
vents.
●To reduce potential odors from occurring:
• 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 dela yed for a short period of time immediately
after the air conditioning system is started in automatic mode.
■Air conditioning filter
P. 487
■Customization
Settings (e.g. A/C automatic mode sw itch operation) can be changed.
(Customizable features: P. 592)

GX460_OM_OM60Q84U_(U)
3995-1. Using the air conditioning system and defogger
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Interior features
CAUTION
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The differ-
ence between the temperature of the outside air and that of the windshield can cause
the outer surface of the windshield to fog up, blocking your vision.
■To prevent burns
●Do not touch the rear view mirror surfaces when the outside rear view mirror defog-
gers are on.
●Do not touch the glass at lower part of the windshield or to the side of the front pillars
when the windshield wiper de-icer is on. (vehicles with windshield wiper de-icer)
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
off.
●Do not place anything on the instrument
panel which may cover th e air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.

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GX460_OM_OM60Q84U_(U)5-1. Using the air conditio
ning system and defogger
Rear air conditioning system
■Adjusting the temperature setting
Press “” on the “TEMP” button to in crease the temperature and “ ” to
decrease the temperature.
Touch on the climate screen to display the option control screen. ( P. 391)
If the “A/C” indicator is tu rned off, the system will blow ambient temperature air or
heated air.
■Adjusting the fan speed setting
Press “ ” on to increase the fan speed and “ ” to decrease the fan
speed.
Press the “OFF” button to turn the fan off.
■Changing the air flow mode
Press .
The air flow mode switch each time the button is pressed.
: If equipped
Air outlets and fan speed are automati cally adjusted according to the tem-
perature setting.