Page 355 of 600

355
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Outside/recirculated air mode
●When driving on dusty roads su ch 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:
Page 356 of 600

3565-2. Using the air conditio ning 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 produc t 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.
Page 357 of 600

357
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE)
WARNING
■To prevent the windshield from fogging up
●Do not use during cool air operation in extremely humid weather. The d iffer-
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.
●Vehicles with windshield wiper de-icer: Do not touch the glass at lower part of the
windshield or to the side of the front pilla rs when the windshield wiper de-icer is on.
■nanoe generator (if equipped)
Do not disassemble or repair the generator because it contains high voltage parts.
Contact any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer if the generator needs repair.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys-
tem is off.
■To prevent damage to the nanoe (if equipped)
Do not insert anything into the driver’s side vent, attach a nything to it, or use sprays
around the driver’s side vent. These things may cause the generator not to work prop-
erly.
●Do not place anything on the instrument
panel which may cover the air outlets. Other-
wise, air flow may be obstructed, preventing
the windshield defoggers from defogging.
Page 358 of 600
3585-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30F92E_(EE)
Rear air conditioning system
■Adjusting the temperature setting
Press “
” on to increase the temperature and “ ” to decrease the
temperature.
: If equipped
Air outlets and fan speed are automatically adjusted according to the tem-
perature setting.
Control panel
Set automatic mode on/off
Turn the fan off Change the airflow mode
Adjust the temperature setting1
2
3
4
Page 359 of 600
359
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE)
■Changing the air outlets
Press .
The air outlets change as follo ws each time is pressed.
: Air flows to the upper body.
: Air flows to the upper body and feet.
: Air flows to the feet.
Press .
The air conditioning system will operate, and air outlets and fan speed will be adjusted
automatically.
“AUTO” will be displaye d on the control panel.
Adjust the temperature setting.
When the rear seat heaters are set to “AUTO” mode, the system is operated automat-
ically according to the set temperature, outside temperature, etc.
To stop the operation, press the “OFF” button.
■Location of air outlets
The air outlets and air volume
changes according to the selected
air flow mode.
Using automatic air conditioning system
Air outlets
1
2
Page 360 of 600
3605-2. Using the air conditio ning 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.
■Button lock function
■Rear control panel illumination off function
1
2
To prevent inadvertent operation, the buttons on
the rear armrest can be locked. Press
until you hear a beep to lock the buttons. Press-
ing again until you hear a beep will
release the lock.
The indicator appears on the display when the
buttons are locked.
Control panel illumination on the rear armrest
can be turned off. Press until you hear a
beep to turn the illumination off. Pressing
again until you hear a beep will turn the illumina-
tion on.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid sys-
tem is off.
Page 361 of 600
361
5
5-2. Using the air conditioning system and defogger
Interior features
GS450h_300h_OM_OM30F92E_(EE)
Heated steering wheel/seat heaters/seat ventilators
: If equipped
Heated steering wheel and seat heaters heat the side grips of the steering
wheel and seats, respectively. Seat vent ilators maintain good airflow by blow-
ing air from the seats.
WARNING
●Care should be taken to prevent injury if anyone in the following categories comes in
contact with the steering wheel and seats when the heater is on:
Page 363 of 600
363
5-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30F92E_(EE) ●
Modes and indicators
The mode can be changed by pressing the switch.
* : When automatic mode is selected, the leve l automatically changes depending on the
air conditioning settings.
■Seat heaters (without seat ventilators) (if equipped)
Seat heater switches
Level indicator lights The seat heater temperature level is
displayed.
● Modes and indicators
The mode changes each time the switch is pressed as follows:
* : The mode changes automatically depending on the amount of time that has elapsed.
The amount of time until the mode changes varies depending on the interior tempera-
ture when the seat heater was operated and other factors.
Mode“AUTO” indicator lightLevel indicator lights
OffOffOff
Automatic *On3 to 1, or off
HiOff3
MidOff2
LoOff1
1
2
ModeLevel indicator lightsAutomatic operation *
OffOff
Hi3Hi Mid Lo
Mid2Mid Lo
Lo1Lo