2021 Lexus GX460 Owner's Manual /

GX460_OM_OM60T19U_(U)
3855-1. Using the air conditioning system and defogger
5
Interior features
■Adjusting the temperature setting
Press to increase the temperature and to decrease the tempera-
ture.
If the “A/C” indicator is turned off, the system will blow ambient temperature air or
heated air.
■Adjusting the fan speed setting
Press 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
Select an air outlet switch.
: Air flows to the upper body
: Air flows to the upper body and feet
: Air flows to the feet
■Option control screen
Touch on the climate screen to display the option control screen. The
functions can be switched on and off.Select to set cooling and dehu-
midification function on/off
Adjust the temperature for driver
and passenger seats separately
(“DUAL” mode)/driver, passen-
ger and rear seats separately (“3-
ZONE” mode) ( P. 386)
Prevent ice from building up on
the windshield and wiper blades
(if equipped) ( P. 389)
Remove pollen from the air ( P. 389)
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3865-1. Using the air conditioning system and defogger
GX460_OM_OM60T19U_(U)
Press to operate the speech
command system. (Refer to the
“NAVIGATION SYSTEM OWNER’S
MANUAL”.)
■Using the automatic mode Press the “AUTO” button.
Press to switch to automatic air intake mode. (if equipped)
The air conditioning system automatically switches between outside air and recir-
culated air modes.
Adjust the temperature setting.
To stop the operation, press the “OFF” button.
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automati c mode for functions other than that
operated is maintained.
■Adjusting the temperature for driv er and passenger seats separately
(“DUAL” mode)/driver, passenger an d rear seats separately (“3-ZONE”
mode)
To turn on the “DUAL”/“3-ZONE” mode , perform any of the following proce-
dures:
●Press the “DUAL”/“3-ZONE” button.
●Select “DUAL”/“3-ZONE” on the option control screen.
●Adjust the passenger’s side temperature setting.
The indicator comes on when the “DUAL”/“3-ZONE” mode is on.
While in “DUAL” mode, the temperature of the rear air outlets is set at the
passenger’s side temperature setting.
Using the speech command system (vehicles with navigation system)
Air conditioning controls
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GX460_OM_OM60T19U_(U)
3875-1. Using the air conditioning system and defogger
5
Interior features
Press or touch to display the re ar 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)
Vehicles without navigation sys-
temVehicles with navigation system
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3885-1. Using the air conditioning system and defogger
GX460_OM_OM60T19U_(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_OM60T19U_(U)
3895-1. Using the air conditioning system and defogger
5
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.
■The windshield wiper de-icer can be operat ed when (vehicles with windshield wiper
de-icer)
The engine switch is in IGNITION ON mode.
■When the windshield wiper de-icer is on (vehicles with windshield wiper de-icer)
The windshield wiper de-icer will automatically turn off after approximately 15 minutes.
WARNING
■When the windshield wiper de-icer is on (vehicles with windshield wiper de-icer)
Do not touch the glass at the lower part of th e windshield or the side of the front pillars
as the surfaces can become very hot and burn you.

3905-1. Using the air conditioning system and defogger
GX460_OM_OM60T19U_(U)
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode. : Vehicles without rear airconditioning system
■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_OM60T19U_(U)
3915-1. Using the air conditioning system and defogger
5
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.
■When driving on dusty roads
Close all windows. If dust thrown up by the ve hicle is still drawn into the vehicle after clos-
ing the windows, it is recommended that the air intake mode be set to outside air mode
and the fan speed to any setting except off.
■Outside/recirculated air mode
●Setting to the recirculated air mode temporarily is recommended in preventing dirty air
from entering the vehicle interior and helping to cool the vehicle when the outside air
temperature is high.
●Outside/recirculated air mode may automa tically switch depending on the tempera-
ture setting or the inside temperature.

3925-1. Using the air conditioning system and defogger
GX460_OM_OM60T19U_(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. 490
■Air conditioning system refrigerant
●The meaning of each symbol on the label are as follows:
●A label regarding the refrigerant of the air
conditioning system is attached to the hood at
the location shown in the following illustration.
Caution
Air conditioning system
Air conditioning system lubricant type
Requires registered technician to ser-
vice air conditioning system
Flammable refrigerant