air condition LEXUS GS300H 2019 Owner's Guide

3475-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Adjusting the temperature setting
Press “ ”on to increase the temperature and “” to decrease the tem-
perature.
Without rear air conditioning system
When “DUAL” on the control screen is selected or the passenger’s side tem-
perature control button is pressed, the temperature for the driver and passen-
ger seats can be adjusted separately.
With rear air conditioning system
When “3-ZONE” on the control screen is selected or the passenger’s side
temperature control button is pressed, the temperature for the driver’s, front
passenger’s and rear seats ( P. 358) can be adjusted separately.
The air conditioning system switches between individual and simultaneous modes
each time 3-ZONE is selected.
■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.
■Change the airflow mode
To change the air outlets, press .
The air outlets used are switched each time the button is pressed. ( P. 348)
■S-FLOW mode
Press .
When is pressed, the airflow changes as follows.
Without rear air conditioning system: Air flows to the front seats only.*
With rear air conditioning system: Air flow s to the front seats only, and if the pas- senger seat is unoccupied, the set temperature, outside humidity and temperature
inside the cabin are assessed, and ai r flows to the driver seat only.*
*: Air may also flow to the rear seats depending on the situation.
■Other functions
●Switching between outside air and recirculated air modes ( P. 351)
●Defogging the windshield (P. 352)
●Defogging the rear window and outside rear view mirrors (P. 352)

3485-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
Adjust the left-hand side temperature setting
Select the air flow to the feet and operate the windshield defogger
Adjust the fan speed setting
Select the air flow mode* (the front seats)
Function on/off indicators on the option control screen
Display the option control screen ( P. 349)
Adjust the right-hand side temperature setting
Fan speed mode selector for automatic mode
Adjust the temperature for the driver’s and front passenger’s seats separately
(DUAL mode) ( P. 347)
Set cooling and dehumidification function on/off
Select to set automatic mode on/off
Select the air flow mode* (the left-hand side)
Select the air flow mode* (the right-hand side)
Display the rear air conditioning operation screen ( P. 350)
Adjust the temperature for the driver’s, front passenger’s and rear seats
( P. 358) separately (3-ZONE mode) (P. 347)
To adjust or select settings, move the Remote Touch knob to select the screen
button, and then press the Remote Touch knob or the “ENTER” button of
Remote Touch to enter the selected function.
Control screen
Without rear air conditioning systemWith rear air conditioning system
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3495-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
*: Air flows to the upper body
Air flows to the upper body and feet
Air flows to the feet
■Option control screen
Select on the control screen to display the option control screen. The
functions can be switched on and off.
When the function is on, the indicator illuminates on the control screen.
( P. 348)
Prevent ice from building up on
the windshield and wiper blades
(if equipped) ( P. 352)
Remove pollen from the air (Pol-
len removal mode) ( P. 352)
nanoe™* system on/off (if
equipped) ( P. 356)
*: nanoe™ and the nanoe™ mark are
trademarks of Panasonic Corporation.
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3505-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■Side display (vehicles with 12.3-inch display)
Adjust the left-hand side temperature setting
Select the air flow mode (the front seats)
Adjust the fan speed setting
Adjust the right-hand side temperature setting
Adjust the temperature for the driver’s and front passenger’s seats separately
(DUAL mode) ( P. 347)
Set cooling and dehumidification function on/off
Select to set automatic mode on/off
Select the air flow mode (the left-hand side)
Select the air flow mode (the right-hand side)
Adjust the temperature for the driver’s, front passenger’s and rear seats
( P. 358) separately (3-ZONE mode) (P. 347)
■Rear air conditioning control screen (with rear air conditioning system)
Adjust the rear seat temperature
setting
Disabling the switches on the rear
armrest
Turn the fan off (rear seat)
Select to set automatic mode on/
off (rear seat)
Without rear air conditioning systemWith rear air conditioning system
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3515-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Using the automatic mode
Press or select “AUTO” on the control screen.
Also, when selecting “FAST/ECO” or each time, the fan speed mode will be changed as follows:
“NORMAL”  “ECO”  “FAST”
Press to switch to automatic air intake mode.
The air conditioning system automatically switches between outside air and recir-
culated air modes.
Adjust the temperature setting. ( P. 347)
To stop the operation, press the “OFF” button.
Air outlets and fan speed for the driver an d passenger seats may be adjusted sepa- rately depending on the temperature setting.
When the front seat heaters and ventilators/rear seat heaters are set to AUTO
mode, the system is operated automatically according to the set temperature, out- side temperature, etc.
■Automatic mode indicator
If the fan speed setting or air flow modes are operated, the automatic mode
indicator goes off. However, automatic mode for functions other than that
operated is maintained.
■Switching between outside air and recirculated air modes
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.
Air conditioning control
Other functions
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3525-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■Defogging the windshield
Defoggers are used to defog the windshield 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 windows early, turn the air flow and tempera- ture up.
To return to the previous mode, press again when the windshield is
defogged.
■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 15 to 60 minutes. The operation
time changes according to the ambient temperature and vehicle speed.
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice fr om building up on the windshield and
wiper blades.
Select on the option control screen.
The windshield wiper de-icer will automa tically turn off after approximately 15 minutes
■Pollen removal mode
Pollen is removed from the air and the ai r flows to the upper part of the body.
Select on the option control screen.
Usually the system will turn off automatically.
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 pollen removal mode is turned off.

3535-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
Select on the control screen to display the rear air conditioning control
screen.
■Using the automatic mode
Select “REAR AUTO” on the screen.
The air conditioning system will operate, and air outlets and speed will be set auto-
matically.
When the rear seat heaters are set to automatic mode, the system is operated automatically according to the set temperature, outside temperature, etc.
Adjust the temperature setting.
To stop the operation, select “REAR OFF”.
■Adjusting the temperature setting
Select to increase the temperature and to decrease the tempera-
ture.
The air conditioning system switches between individual and simultaneous modes each time “3-ZONE” on the control screen is selected.
■Disabling the switches on the rear armrest.
Select .
Rear seat heater switches ( P. 362) are also locked.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
Changing the rear seat settings (w ith rear air conditioning system)
Air outlets
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3545-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■Adjusting the position of and opening and closing the air outlets
Direct air flow to the left or right, up or down.
Turn the knob to open or close the vent.
■Registering air conditioning settings to electronic keys
●Unlocking the vehicle using an electronic key and turning the power switch to ON
mode will recall that key’s registered air conditioning settings.
●When the power switch is turned off, the cu rrent air conditioning settings will automati- cally 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 orif the smart entry & start system is used to unlock a passenger door.
●Settings for the electronic key and the corresponding door can be changed. Contact
any authorized Lexus retailer or Lexus author ized repairer, or any reliable repairer.
■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 is pressed.
Cool air may blow around the upper body even when the heater is on due to sunlight.
■Fogging up of the windows
●The windows will easily fog up when the humidity in the vehicle is high. Turning “A/C” on will dehumidify the air from the outlets 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.
Front center outlets and front side
outlets
Rear seat outlets
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3555-2. Using the air conditioning system and defogger
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Interior features
GS450h_300h_OM_OM30F92E_(EE)
■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 entering the vehicle interior. During cooling operation, setting the recirculated air mode will also cool the vehicle interior effectively.
●Outside/recirculated air mode may automatically switch depending on the tempera-
ture setting or the inside temperature.
■Automatic mode for air intake control
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.
■Operation of the air conditioning system in Eco drive mode
In the Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel efficiency:
●Engine speed and compressor operation controlled to restrict heating/cooling capac-ity
●Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:
●Adjust the fan speed
●Turn off Eco drive mode (P. 311)
■When the S-FLOW mode operates
If air flows to the driver’s seat only, the temperature setting for the front passenger’s seat is not displayed.
■When the outside temperature is low
The dehumidification function may not operate even when “A/C” on the option control
screen is selected.
■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 delayed for a short period of time immediately after the air conditioning system is started in automatic mode.

3565-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
■nanoe *1 system (if equipped)
Your vehicle incorporates a nanoe  device, which is considered a biocidal product. The nanoe  device generates charged water particles from the ambient air and these purify
the air in the cabin by suppressing bacteria.
The nanoe  device is considered a biocidal product in the EU according to the interpre- tation of Regulation (EU) No 528/2012.
Active substances: Charged water particles (nano) containing hydroxyl radicals, gener- ated from ambient air
nanoe  helps to provide purified air by emitting electrically charged water particles
through the front center vent on the driver’s side*2.
●When the fan is turned on and “nanoe” on the option control screen is selected, the nanoe  system is activated.
●When the fan is operated in the following conditions, system performance will be maxi- mized. If the following conditions are not met, performance will be limited.
• The , or air outlets are being used.
• The front center vent on driver’s side is open.
●When nanoe  is generated, a small amount of ozone is emitted and may be faintly smelled in some situations. However, this is approximately the same as the amount that
already exists in nature, such as in forests, and it has no affect on the human body.
●A slight noise may be heard during operation. This is not a malfunction.
*1:nanoe  and the nanoe mark are trademarks of Panasonic Corporation.
*2: According to temperature and humidity conditions, fan speed and direction of the
air flow, the nanoe  system may not operate at full capacity.
■Air conditioning filter
 P. 433
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed. (Customizable features: P. 561)