2016 Lexus GS350 Owner's Manual

GS350_200t_GS F_OM_OM30E86U_(U)
3375-2. Using the air conditioning system and defogger
5
Interior features
■When the outside temperature exceeds 75°F (24°C) and the air conditioning system
is on
●In order to reduce the air conditioning po wer consumption, the air conditioning system
may switch to recirculated air mode automa tically. This may also reduce fuel consump-
tion.
●Recirculated air mode is selected as a default mode when the engine 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 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 performance, perform the following operations:
●Turn off eco air conditioning mode
●Adjust the fan speed
●Turn off Eco drive mode ( P. 2 9 3 )
■Eco air conditioning mode
When Eco drive mode is selected using the drive mode select switch, eco air condition-
ing mode turns on.
When a drive mode other than Eco drive mode is selected, eco air conditioning mode
may turn off.
■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 operat e even when “A/C” on the option control
screen is selected.
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditio ning 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.

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GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditio
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■Air conditioning filter
P. 4 2 7
■Customization
Settings (e.g. exhaust gas sensor sensitivity) can be changed.
(Customizable features: P. 5 6 8 )
WA R N I N G
■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 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.
NOTICE
■To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
stopped.
●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.

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GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditio
ning system and defogger
5
Interior features
Rear air conditioning system
■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 to the upper body.
: Air flows to the upper body and feet.
: Air flows to the feet.
: If equipped
Air outlets and fan speed are automatica lly adjusted according to the temper-
ature setting.
Control panel
Set automatic mode on/off
Tu r n t h e f a n o f f Change the airflow mode
Adjust the temperature setting1
2
3
4

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GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditio
ning system and defogger
Press .
The air conditioning system will operate, and air outlets and fan speed will be adjusted
automatically.
“AUTO” will be displayed on the control panel.
Adjust the temperature setting.
When the rear seat heaters are set to “AUT O” 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.
■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.
Using automatic air conditioning system
Air outlets
1
2
1
2

GS350_200t_GS F_OM_OM30E86U_(U)
3415-2. 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 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 battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is
off.

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GS350_200t_GS F_OM_OM30E86U_(U)5-2. Using the air conditio
ning system and defogger
Heated steering wheel/seat heaters/seat ventilators
Turns the heated steering wheel on/off
The indicator light comes on when the
heater is operating.
●The heated steering wheel can be used when the engine switch is in IGNITION ON
mode.
●The heated steering wheel will automati cally turn off after about 30 minutes.
: If equipped
Heated steering wheel and seat heater s heat the side grips of the steering
wheel and seats, respectively. Seat ventilators maintain good airflow by blow-
ing air from the seats.
WA R N I N G
●Care should be taken to prevent injury if anyone in the following categories comes in
contact with the steering wheel or seats when the heater is on:
• Babies, small children, the elderly, th e sick and the physically challenged
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs, cold
remedies, etc.)
●Observe the following precautions to prevent the minor burns or overheating:
• Do not cover the seat with a blanket or cushion when using the seat heater.
• Do not use seat heater more than necessary.
NOTICE
●To prevent damage to the seat heaters/seat ventilators, do not put heavy objects that
have an uneven surface on the seat and do not stick sharp objects (needles, nails, etc.)
into the seat.
●To prevent battery discharge, do not use the functions when the engine is off.
Heated steering wheel (If equipped)

GS350_200t_GS F_OM_OM30E86U_(U)
3435-2. Using the air conditioning system and defogger
5
Interior features
■Front seat heaters and ventilators (if equipped)/rear seat heaters (if
equipped)
Seat heater switches
The indicator light (yellow) on the switch co mes on when the seat heater is operating.
Seat ventilator switches (front seats only)
The indicator light (green) on the switch comes on when the seat ventilator is operat-
ing.
Level indicator lights
The seat heater temperature level or the seat ventilator fan speed level (for front seats
only) is displayed.
“AUTO” indicator lights
Seat heaters (if equipped)/seat ventilators (if equipped)
Front seatsRear seats
1
2
3
4

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●Modes and indicators
The mode can be changed by pressing the switch.
*: When automatic mode is selected, the level 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 tem-
perature 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