2009 Lexus IS250 air condition

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AIR CONDITIONING
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Operations such as changing the air outlets or fan speed are carried out on the touch
screen. To display the air conditioning touch screen, push the“CLIMATE”button.
1Driver side temperature display
(In degrees Fahrenheit or Centi-
grade) 255.....................
2Outside temperature display
(In degrees Fahrenheit or Centi-
grade) 263.....................
3“DUAL”
(Temperature setting mode change
touch−screen button) 255 ........
4Passenger side temperature dis-
play
(In degrees Fahrenheit or Centi-
grade) 255.....................
5Air flow control touch −screen but-
tons 257
......................
6Fan speed control touch− screen
buttons 257
...................
7“A/C” 259
.....................
8Air intake control button 258
....
9“PASSENGER TEMP” buttons
(Passenger side temperature control
button)
(Only for the independent mode that
display shows “DUAL”; mainly for
front passenger and secondarily for
driver) 255 .....................
10Rear window defogger button
261
...........................
11Windshield air flow button
260
...........................
12Micro dust and pollen filter button
262
...........................
13“OFF” button 254
..............
IS F/350/250_Navi_U
(L/O 0808)
Automatic air conditioning controls

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14“AUTO” button254
............
15“TEMP” buttons
(Driver side temperature control but-
ton) (At the independent mode that
display shows “DUAL”; mainly or
driver and secondarily for front pas-
senger)
(At the linked mode that display does
not show “DUAL”; for driver)
255
...........................
16“CLIMATE” button
(Air conditioning operation screen
display button) 253 ..............
IS F/350/250_Navi_U
(L/O 0808)

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"Air flow selectionAutomatic air flow mode only
IS F/350/250_Navi_U
(L/O 0808)

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The automatic air conditioning auto-
matically maintains the set tempera-
ture.
In the automatic operation mode, the air
conditioning selects the most suitable fan
speed, air flow, air intake and on−off the air
conditioning according to the temperature.
The “ENGINE START STOP” switch must
be in IGNITION ON mode.
“CLIMATE”: Push this button to display
touch− screen buttons for automatic air
conditioning controls.
NOTICE
To prevent the battery from being dis-
charged, do not leave the air condi-
tioning on longer than necessary
when the engine is not running.
By pushing the switch above, you can
operate the speech command system.
For the operation of the speech command
system and the command, see pages 174
and 177.
IS F/350/250_Navi_U
(L/O 0808)

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(a) Climate control
SETTING OPERATION−automatic con-
trol
1. Push the “AUTO” button.
An indicator light will illuminate to show
that the automatic operation mode has
been selected.
Air flow quantity, switching of the diffusers,
on− off of the air conditioning, and switch-
ing of the air intake between RECIRCU-
LATED AIR and OUTSIDE AIR are auto-
matically adjusted. The operation status is
shown by each indicator.
When one of the manual control buttons is
depressed while operating in automatic
mode, the mode relevant to the depressed
button is set. Other conditions continue to
be adjusted automatically.
Push the “OFF”button to turn the fan off.
INFORMATION
DThis automatic control has addi-
tional function as described below,
when the “AUTO” button is
pushed.
The fan speed is stopped for a little
while until warm air preparation,
when outside temperature is cold
like a winter season in the “Floor”,
“Bi− level” or “Floor/Windshield”
air flow mode. If quick removal for
exterior frost, fog and inside fog on
the windshield is desired, use the
high fan speed setting after the
“Windshield” air flow mode has
been selected.
The fan speed is stopped few sec-
onds until cool air preparation,
when outside temperature is hot
like a summer season in the “Pan-
el” or “Bi− level” air flow mode.
D The internal circulation may be ap-
plied for maximum cooling in the
automatic operation mode, when
outside temperature is hot like a
summer season.
If fresh outside air is desired into
the vehicle, push the air intake
control button to select the OUT-
SIDE AIR mode.
D The “Floor/Windshield” air flow
mode may be applied automatical-
ly, if the outside temperature is
lowered down to below 0 _C (32 _F).
This is not malfunction. The
“Floor/Windshield” air flow mode
turns on the defogging and de-
frosting function with the purpose
of cleaning your front view for safe
driving.
If the “Floor” air flow mode is de-
sired with the main purpose of
heating, “Floor” air flow mode can
be selected manually by touching
the air flow control button.
IS F/350/250_Navi_U
(L/O 0808)

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2. Use the “TEMP” or “PASSENGER
TEMP” button to set the desired vehicle
interior temperature.
The“TEMP” or“PASSENGER TEMP”
(“
” ,“” ) buttons are used to set the de-
sired interior temperature. The interior
temperature will be controlled on the driver
and passenger side simultaneously or in-
dividually.
To increase the interior temperature, push
the “
”button, to decrease it, push the
“” button.
If quick heating or cooling is desired —
“LO” appears when you hold it until maxi-
mum cooling (decrease), and “HI” appears
when you hold it until maximum warning
(increase).
“TEMP” button — Changes the tempera-
ture on the driver and passenger sides si-
multaneously or the driver side only.
“PASSENGER TEMP” button —
Changes the temperature settings sepa-
rate from the driver side.
“DUAL” —
This button is used to set the temperatures
independently for the driver ’s seat and
front passenger seat.
Touching the button changes from the in-
dependent mode to the linked mode.
Independent mode: Temperatures can
be set independently for the driver ’s seat
and front passenger ’s seat. The indicator
will come on to show that the independent
mode has been selected.
Linked mode: The same temperature is
set for the driver ’s seat and front passen-
ger’s seat. The indicator will come off to
show that the simultaneous temperature
setting mode has been selected.
When the temperature for the front pas-
senger ’s seat is changed in linked mode,
the mode is changed automatically to inde-
pendent mode.
IS F/350/250_Navi_U
(L/O 0808)

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INFORMATION
Knowledge for the two−temperature
selector operation:
This air conditioning system has two
independent temperature selectors:
left and right (for the use of driver and
front passenger respectively).
D There are cases where the temper-
ature of the airflow may not accu-
rately correlate on the driver and
front passenger side according to
circumstances, even if the left and
right temperature selectors are set
at the same temperature. If this sit-
uation occurs, use the fine tune op-
eration to adjust the air tempera-
ture on one side.
D There are cases where one or both
of the airflow temperatures may
not accurately correlate with the
set temperature according to cir-
cumstances, when the airflow tem-
perature settings on the left and
right are substantially different.
For example, if the left controller is
set at central or neutral tempera-
ture while the right one is set at
maximum heating or maximum
cooling, or vice versa. If this situa-
tion occurs, use the fine tune op-
eration to adjust the air tempera-
ture on each side.
Driver side setting air flow
Passenger side setting air flow
Mixed air flow
IS F/350/250_Navi_U
(L/O 0808)

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SETTING OPERATION — manual con-
trol
When one of the manual control touch−
screen buttons is depressed while operat-
ing in automatic mode, the operation cor-
responding to the depressed button is set.
Other conditions continue to be adjusted
automatically.
If manual air flow selection is desired —
The outlets from which air is delivered can
be selected manually by touching the
touch− screen button. The function of each
mode is as follows:
1 Panel — Air flows mainly from the
instrument panel vents and rear
vents.
2Bi −level — Air flows from both the
floor vents, instrument panel vents
and rear vents.
When you set the temperature selec-
tor setting at about the middle in auto-
matic operation, warm air flows out of
the floor vents and relatively low −
temperature air flows out of the in-
strument panel vents and rear vents.
3 Floor — Air flows mainly from the
floor vents and rear vents.
4 Floor/windshield — Air flows mainly
from the floor vents, windshield vents
and rear vents.
Take in the fresh air with selecting the
OUTSIDE AIR mode by the air intake con-
trol button.
The selected mode is highlighted. If manual fan speed control is desired
—
"1Fan speed at low
2Fan speed at high
The fan speed can be set to your desired
speed by touching the appropriate air flow
control button.
The higher the fan speed is, the more air is
delivered.
Pushing the “OFF”button turns the fan off.
To remove the exterior windshield frost
and interior windshield fog, use the high
speed setting.
The selected mode is highlighted.
IS F/350/250_Navi_U
(L/O 0808)