air conditioning Lexus IS250 2014 User Guide

376
IS250_EE(OM53C51E)6-1. Using the air conditioning system
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted according to the temper-
ature setting.
Vehicles with a Lexus Display Audio system: Press the “MENU” button on the
Lexus Display Audio controller, then select “Climate” to display the air condi-
tioning operation screen.
For details on the Lexus Display Audio controller, refer to “Lexus Display
Audio controller” on P. 296.
Vehicles with a navigation system: Press the “MENU” button on the Remote
Touch, then select “Climate” to display the air conditioning control screen.
For details on the Remote Touch, refer to the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S MANUAL”.
The illustrations below are for left-hand drive vehicles.
The button positions and shapes will differ for right-hand drive vehicles.
Also, the display and button positions will differ depending on the type of the
system.

3776-1. Using the air conditioning system
6
Interior features
IS250_EE(OM53C51E)
XWith “DUAL” mode
XWithout “DUAL” mode
Air conditioning controls

3786-1. Using the air conditioning system
IS250_EE(OM53C51E)
■Adjusting the temperature setting
To adjust the temperature setting,
touch and slide your finger up or
down on the sensor.
The temperature setting can also be
adjusted by touching on the sensor.
When the temperature setting is
changed, a buzzer sounds.
■Fan speed setting
Press to increase the fan speed.
Press to decrease the fan speed.
■Change the airflow mode
To change the airflow, press .
The air outlets used are switched each time the button is pressed.
■Other functions
●Switching between outside air and recirculated air modes (→P. 3 8 2 )
●Defogging the windshield (→P. 3 8 2 )
●Defogging the rear window and outside rear view mirrors (→P. 3 8 2 )

3796-1. Using the air conditioning system
6
Interior features
IS250_EE(OM53C51E)
XWith a Lexus Display Audio
Adjust the left-hand side temperature setting
Adjust the fan speed setting
Select to set auto mode on/off, fan off, blower customization (→P. 3 8 3 )
and displaying the option control screen (→P. 3 8 1 ) .
Select the air flow mode
Adjust the right-hand side temperature setting
Adjust the temperature setting
Move the Lexus Display Audio controller left/right to select the desired item
( to ).
When , , or is selected:
Move the controller forward/backward or turn it left/right for adjusting.
When or is selected:
Move the controller forward/backward or turn it left/right to select a screen
button, then press the controller.
Air conditioning control screen
(With “DUAL” mode) (Without “DUAL” mode)
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2
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5
6
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16
21256
34

3806-1. Using the air conditioning system
IS250_EE(OM53C51E)
XWith a navigation system
Adjust the left-hand side temperature setting
Adjust the fan speed setting
Changing the fan speed setting during the automatic mode operation
(→P. 383)
Select the air flow mode
Adjust the right-hand side temperature setting
Display the option control screen (→P. 3 8 1 )
Tu r n t h e f a n o f f
Select to set auto mode on/off
Adjust the temperature setting
To adjust or select settings, move the Remote Touch knob to select the screen
button, and then press the Remote Touch knob to enter the selected function. (With “DUAL” mode) (Without “DUAL” mode)
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2
3
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9

3816-1. Using the air conditioning system
6
Interior features
IS250_EE(OM53C51E)
■Option control screen
The functions can be switched on and off.
Cooling and dehumidification
function
Adjusting the temperature for
driver and passenger seats sepa-
rately (“DUAL” mode)
(if equipped) (→P. 3 8 1 )
Removing pollen from the air
(Pollen removal mode)
(→P. 3 8 2 )
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 conditioning
control screen.
■Automatic mode indicator
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 procedures:
●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.
1
2
3
Using automatic mode
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2
3

3826-1. Using the air conditioning system
IS250_EE(OM53C51E)
■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
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 conditioning
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 recirculated
air mode is used. (It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and tempera-
ture 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

3836-1. Using the air conditioning system
6
Interior features
IS250_EE(OM53C51E)
■Windshield wiper de-icer (if equipped)
This feature is used to prevent ice from building up on the windshield and
wiper blades.
Tu r n s o n /o f f .
The indicator comes on when the
windshield wiper de-icer is on.
The windshield de-icer will automati-
cally turn off after a period of time.
■Blower customization
Fan speed setting during the automatic mode operation can be customized.
To change the fan speed setting mode, select
on the air conditioning
control screen.
Each time is selected, the fan speed setting mode changes as follows.
“MEDIUM”→“SOFT”→“FAST”→“MEDIUM”

3846-1. Using the air conditioning system
IS250_EE(OM53C51E)
■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
XFrontXRear
1
2

3856-1. Using the air conditioning system
6
Interior features
IS250_EE(OM53C51E)
■Registering air conditioning settings to electronic keys (vehicles with driving position
memory)
●Unlocking the vehicle using an electronic key and turning the engine switch to IGNI-
TION ON mode will recall that key's registered air conditioning settings.
●When the engine switch is turned off, the current air conditioning settings will automat-
ically 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 ambi-
ent 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 windshield 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/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.
■Operation of the air conditioning system in Eco drive mode
In 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:
●Adjust the fan speed
●Turn off Eco drive mode
■When the outside temperature falls to nearly 0°C (32°F)
The dehumidification function may not operate even when is pressed or “A/C” is
selected.