Lexus GS300h 2013 Owner's Manual

4835-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)
Without rear air conditioning system
To adjust the fan speed, select “” on to increase the fan
speed and “” to decrease the fan speed on the operation screen.
Press to turn the fan off.
To adjust the temperature setting, press “” on to increase the
temperature and “” to decrease the temperature.
When is selected (the indicator on is on) or the passenger’s
side temperature control button is pressed, the temperature for the driver
and passenger seats can be adjusted separately.
To change the air outlets,
select an air outlet switch on
the operation screen.
Adjusting the settings manually
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4845-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
With rear air conditioning system
To adjust the fan speed, select “” on to increase the fan
speed and “” to decrease the fan speed on the operation screen.
Press to turn the fan off.
To adjust the temperature setting, press “” on to increase the
temperature and “” to decrease the temperature.
The air conditioning system switches between individual and simultane-
ous modes each time is selected.
When is selected (the indicator on is on) or the passenger’s
side temperature control button is pressed, the temperature for the driver’s,
front passenger’s and rear seats (P. 496) can be adjusted separately.
To change the air outlets,
select an air outlet switch on
the operation screen.
Left-hand front seat
Right-hand front seat
Different air outlets for the driver
and front passenger seats can be
chosen.
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2
3
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4855-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)
Press .
The dehumidification function
operates and fan speed increases.
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 temperature up.
To return to the previous mode,
press
again when the wind-
shield is defogged.
Upper body
*1: In “AUTO” mode, air may flow to
the feet as well as to the body to
prevent your feet from getting
sweaty.
*2: Air may flow slightly from the
windshield.
Upper body and feet
*: Air may flow slightly from the
windshield.
Defogging the windshield
Air outlets and air flow
*1
*1
*2
*

4865-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
Feet
*: When the warming function is
operating, air flows to the upper
body as well to warm the upper
body effectively.
Feet and windshield
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 sys-
tem operates automatically.
*
*
Switching between outside air and recirculated air modes

4875-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)
Using the automatic mode
Select .
Select .
The air conditioning system will
operate, and air outlets and
speed will be set automatically.
When the rear seat heaters are
set to “AUTO” mode, the sys-
tem is operated automatically
according to the set tempera-
ture, outside temperature, etc.
Select to increase the temperature and to decrease the tem-
perature.
Adjusting the temperature setting
Select .
Select (increase) or
(decrease) on the operation
screen.
The air conditioning system
switches between individual and
simultaneous modes each time
is selected.
Changing the rear seat settings (with rear air conditioning
system)
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4885-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
Disabling the switches on the rear armrest.
Select .
Rear seat heater switches (P.
704) are also locked.
Operates pollen removal mode
on/off.
Outside air mode switches to
(recirculated air) mode. Pol-
len is removed from the air and the
air flows to the upper part of the
body.
Usually the system will turn off
automatically after approximately
1 to 3 minutes.
Operates S-FLOW mode on/off.
When the S-FLOW mode button is
pressed, the airflow changes as fol-
lows.
Without rear air conditioning sys-
tem: Air flows to the front seats
only.
With rear air conditioning system:
Air flows to the front seats only,
and if the passenger seat is unoccu-
pied, the set temperature, outside
humidity and temperature inside
Pollen removal mode button
S-FLOW mode button

4895-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)the cabin are assessed, and air
flows to the driver seat only.

4905-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
Front center outlets and front side outlets
Direct air flow to the left or
right, up or down.
Turn the knob to open or
close the vent.
Rear seat outlets
Direct air flow to the left or
right, up or down.
Turn the knob to open or
close the vent.
Adjusting the position of and opening and closing the air out-
lets
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4915-2. Using the air conditioning system and defogger
5
Interior features
GS450h_300h_OM_OM30D53E_(EE)
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 current air conditioning settings
will automatically 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 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 dealer or repairer, or another duly qualified
and equipped professional.
Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
Humidity sensor
Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high.
Selecting on will dehumidify the air from the outlets and defog the
windshield effectively.
If you turn off, the windows may fog up more easily. A sensor, which detects humidity inside
the vehicle and the temperature of the
windshield, is provided to detect fog on
the front windscreen. Due to the sensor,
when automatic mode is set the air condi-
tioning may make the following controls:
Changing the amount of air flow
Changing the amount of air introduced
from outside when in outside air mode
with the air vents in the position
Changing the settings of the air vents to
when the is set

4925-2. Using the air conditioning system and defogger
GS450h_300h_OM_OM30D53E_(EE)
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 out-
side/recirculated air mode button to the recirculated air mode. This is effec-
tive in preventing outside air from entering the vehicle interior. During
cooling operation, setting the recirculated air mode will also cool the vehi-
cle interior effectively.
Outside/recirculated air mode may automatically switch depending on the
temperature setting or the inside temperature.
Automatic mode for air intake control
In automatic mode, the system detects exhaust gas and other pollutants and
automatically 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.
Pollen removal mode
In order to prevent the windshield from fogging up when the outside air is
cold, the following may occur:
• Outside air mode does not switch to (recirculated air) mode.
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
In rainy weather, the windows may fog up. Press .
In extremely humid weather, the windows may fog up.
The pollens are filtered out even if the pollen removal mode is turned off.
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/cool-
ing capacity
Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following opera-
tions:
Adjust the fan speed
Turn off Eco drive mode
When the S-FLOW mode operates
If air flows to the driver’s seat only, the temperature setting for the front pas-
senger’s seat is not displayed.
When the outside temperature falls to nearly 0C (32F)