2013 Lexus GS450h Using the audio system / LEXUS 2013 GS450H OWNERS MANUAL (OM30D01U)

GS450h_U (OM30D01U)
3775-2. Using the air conditioning system and defogger
5
Interior features
■When the outside temperature exceeds 75°F (24°C) and the air conditioning sys-
tem is on
●In order to reduce the air conditioning 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 default mode when the power switch is
turned on.
●It is possible to switch to outside air mode at any time by pressing .
■Automatic mode for air intake control
In automatic mode, the system detects ex haust gas and other pollutants and auto-
matically 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.
■Micro dust an d pollen filter
●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 mi cro dust and pollen filter 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 priori-
tize fuel efficiency:
●Engine speed and compressor operation co ntrolled to restrict heating/cooling
capacity
●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
■When the outside temperature falls to nearly 32 F (0C)
The dehumidification function may not operate even when is selected.

378
GS450h_U (OM30D01U)
5-2. Using the air conditioning system and defogger
■Air conditioning odors
●During use, various odors from inside an d outside the vehicle may enter into and
accumulate in the air condit ioning system. This may then cause odor to be emitted
from the vents.
●To reduce potential odors from occurring:
• It is recommended that the air conditio ning 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 immedi-
ately after the air conditioning system is started in automatic mode.
■Air conditioning filter
 P. 6 6 6
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed.
(Customizable features P. 8 0 7 )
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 outs ide air and that of the windshield can
cause the outer surface of the windshield to fog up, blocking your vision.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.
■Humidity sensor
Follow these points to avoid damaging the sensor:
●Do not disassemble the sensor
●Do not spray the glass cleaner on the sensor or subject it to strong impacts
●Do not stick anything on the sensor

379
GS450h_U (OM30D01U)5-2. Using the air conditio ning system and defogger
5
Interior features
Rear air conditioning system
: If equipped
Air outlets and fan speed are automatica lly adjusted according to the
temperature setting.
Button lock display
Air outlet mode display
Temperature display
Temperature control Air outlet selector
Off
Automatic mode1
2
3
4
5
6
7

380
GS450h_U (OM30D01U)
5-2. Using the air conditioning system and defogger
Press .
The air conditioning system will operat e, and air outlets and fan speed will be
adjusted automatically.
“AUTO” will be displayed on the control panel.
Press “ ” on to increase the temperature and “” to decrease
the temperature.
Using automatic air conditioning system
1
2

GS450h_U (OM30D01U)
3815-2. Using the air conditioning system and defogger
5
Interior features
■Adjusting the temperature setting
Press “” on to increase the temperature and “” to decrease
the temperature.
■Changing the air outlets
Press .
The air outlets change as follows each time is pressed.
Air flows as shown below according to the mode selected.
Upper body
Upper body and feet
Adjusting the settings manually

382
GS450h_U (OM30D01U)
5-2. Using the air conditioning system and defogger
Feet
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 op ening and closing the air outlets
(Rear center outlets)
1
2

GS450h_U (OM30D01U)
3835-2. Using the air conditioning system and defogger
5
Interior features
■Button lock function
■Rear control panel illumination off function To prevent inadvertent operation, the buttons
on the rear armrest can be locked. Press
until you hear a beep to lock the but-
tons. Pressing 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
illumination on.
NOTICE
■To prevent 12-volt battery discharge
Do not leave the air conditioning system on longer than necessary when the hybrid
system is off.

384
GS450h_U (OM30D01U)
5-2. Using the air conditioning system and defogger
Rear window and outside rear view mirror
defoggers
On/off
The defoggers will automatically turn
off after 15 to 60 minutes. The opera-
tion time changes according to the
ambient temperature and vehicle
speed.
■Operating conditions
The power switch must be in the ON mode.
These features are used to defog th e rear window, and to remove rain-
drops, dew and frost from the outside rear view mirrors.
CAUTION
■When the outside rear view mirror defoggers are on
Do not touch the rear view mirror surfaces, as they can become very hot and burn
you.
NOTICE
■To prevent 12-volt battery discharge
Turn the defoggers off when the hybrid system is off.