2013 Lexus IS300h Owner's Manual

4036-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Option control screen
The functions can be switched on and off.
Cooling and dehumidification
function
Adjusting the temperature for
driver and passenger seats sep-
arately (“DUAL” mode)
(if equipped) (P. 403)
Removing pollen from the air
(Pollen removal mode)
(P. 404)
Press , or select “AUTO” on the air conditioning control screen.
Adjust the temperature setting.
To stop the operation, press or select “OFF” on the air condi-
tioning control screen.
If the system is operated manually in automatic mode
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 are maintained.
Adjusting the temperature for driver and passenger seats separately
(“DUAL” mode) (if equipped)
To turn on the “DUAL” mode, perform any of the following proce-
dures:
Press .
Select “DUAL” on the option control screen.
Adjust the passenger’s side temperature setting.
The indicator comes on when the “DUAL” mode is on.
While in “DUAL” mode, the temperature of the rear air outlets is set at the
right-hand side temperature setting.
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2
3
Using automatic mode
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2
3

4046-1. Using the air conditioning system
IS300h_EE(OM53B95E)
Switching between outside air and recirculated air modes
Press to change to recirculated air mode.
Press to change to outside air mode.
The indicator above the selected button comes on.
Pollen removal mode (if equipped)
Pollen is removed from the air and the air flows to the upper part of the
body.
Select
on the option control screen.
When the pollen removal mode is on, is displayed on the air condi-
tioning control screen.
In order to prevent the windshield from fogging 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.
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 recir-
culated 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 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 a period of time.
Other functions

4056-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from building up on the windshield
and wiper blades.
Turns on/off.
The indicator comes on when the
windshield wiper de-icer is on.
The windshield de-icer will auto-
matically turn off after a period of
time.
Blower customization (if equipped)
Fan speed setting during the automatic mode operation can be custom-
ized.
To change the fan speed setting mode, select
on the air condi-
tioning control screen.
Each time is selected, the fan speed setting mode changes as follows.
“MEDIUM”“SOFT”“FAST”“MEDIUM”

4066-1. Using the air conditioning system
IS300h_EE(OM53B95E)
Location of air outlets
The air outlets and air volume
changes according to the selected
airflow mode.
Adjusting the position of and opening and closing the air outlets
Direct air flow to the left or right, up or down
To close the vent, move the knob to the most outside position. (rear outlets
only)
Turn the knob to open or close the vent
Air outlets
FrontRear
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2

4076-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Registering air conditioning settings to electronic keys (vehicles with driving
position memory)
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.
The doors that can recall the air conditioning setting when unlocked using the
smart entry & start system can be changed.* For details, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
*: The doors that can recall the driving position memory are changed at the same
time.
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 or “AUTO” is selected.
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 wind-
shield 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.
Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set the outside/
recirculated air mode button to the recirculated air mode. This is effective in
preventing outside air from entering the vehicle interior. During cooling opera-
tion, setting the recirculated air mode will also cool the vehicle interior effec-
tively.
Outside/recirculated air mode may automatically switch depending on the tem-
perature setting or the inside temperature.
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning system is controlled as follows to priori-
tize fuel efficiency:
Engine speed and compressor operation controlled to restrict heating/cooling
capacity
Fan speed restricted when automatic mode is selected
To improve air conditioning performance, perform the following operations:
Adjust the fan speed
Turn off Eco drive mode

4086-1. Using the air conditioning system
IS300h_EE(OM53B95E)
Air conditioning odors
During use, various odors from inside and outside the vehicle may enter into
and accumulate 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.
Air conditioning filter
P. 470
Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features P. 582)
CAUTION
To prevent the windshield from fogging up
Do not use during cool air operation in extremely humid weather. The
difference between the temperature of the outside air and that of the wind-
shield 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
defoggers are on.
Do not touch the glass at lower part of the windshield or to the side of the
front pillars when the windshield wiper de-icer is 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.
Do not place anything on the instrument
panel which may cover the air outlets.
Otherwise, air flow may be obstructed,
preventing the windshield defoggers from
defogging.

4096-1. Using the air conditioning system
6
Interior features
IS300h_EE(OM53B95E)
Turn the heated steering wheel on/
off
The indicator light comes on when
the heated steering wheel is operat-
ing.
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 ventilators maintain good airflow by
blowing air from the seats.
CAUTION
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:
• Babies, small children, the elderly, the 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 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
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 12-volt battery discharge, do not use the functions when the hybrid
system is off.
Heated steering wheel

4106-1. Using the air conditioning system
IS300h_EE(OM53B95E)
The heated steering wheel can be used when the power switch is in ON mode.
The heated steering wheel will automatically turn off after about 30 minutes.
Each time the switch is pressed, the
intensity of the seat heater changes
and the level indicator lights
(amber) light as follows:
Hi (3 segments lit)  Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The seat heaters can be used when the power switch is in ON mode.
Seat heater timer control: The seat heater automatically switches from
HiMidLo. The switching timing differs depending on the temperature
inside the cabin etc. when the seat heater was operated.
The seat heater timer control can be turned on and off by pressing the seat
heater switches for the driver side and front passenger side at the same time
until a buzzer sounds. The buzzer will beep once when the seat heater timer
control is turned on and twice when it is turned off.
Each time the switch is pressed, the
intensity of the seat ventilator
changes and the level indicator
lights (green) light as follows:
Hi (3 segments lit)  Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The seat ventilators can be used when the power switch is in ON mode.
Seat heaters
Ty p e A Ty p e B
Seat ventilators