2009 Lexus IS250 light

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AIR CONDITIONING
258
If manual switching of air intake is de-
sired —
Each time you push the air intake control
button, the mode changes in order from
the RECIRCULATED AIR mode to AUTO-
MATIC mode to OUTSIDE AIR mode, then
back to the RECIRCULATED AIR mode.
Each indicator light shows which mode is
now selected.
1 RECIRCULATED AIR mode —If
quick circulation of cooled air is de-
sired, select this mode.
2 EXHAUST GAS AUTOMATIC mode (on some models) — If the outside
air contains harmful substances like
exhaust gas (i.e., when the vehicle
running just in front of your vehicle ac-
celerates rapidly), the system
changes automatically from the
OUTSIDE AIR mode (with indicators
2 and3on) to the RECIRCU-
LATED AIR mode (with indicators
1 and2on).
3 OUTSIDE AIR mode — The system
will take fresh outside air into the ve-
hicle. Turning off the air conditioning manually
will cancel the EXHAUST GAS AUTO-
MATIC mode. If you select the “AUTO”
mode during fan operating, the air condi-
tioning turns on and the EXHAUST GAS
AUTOMATIC mode will operate.
For normal use, it is best to keep the air in-
take control button set to OUTSIDE AIR
mode. If recirculated air is used during
heating, the windows will fog up more easi-
ly.
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AIR CONDITIONING
259
To change the sensitivity of the sensor
switching between the RECIRCU-
LATED AIR and OUTSIDE AIR in the AU-
TOMATIC mode, push the air intake
control button and hold it for a few sec-
onds.
The “Smog Sensor” screen will be dis-
played.
The sensitivity of the sensor can be ad-
justed only while the vehicle has been
stopped.
The sensitivity of the touch−screen button
is set to be higher toward “HI” and lower to-
ward “LO”.
Touch the desired button on the screen.
When you push the “AUTO”button, the
above screen goes off. If manual on
−off of the air conditioning
is desired —
Touch “A/C” to turn the air conditioning on
and touch it again to turn the air condition-
ing off. If you turn off the air conditioning
manually, the EXHAUST GAS AUTOMAT-
IC mode will be cancelled.
If the outside temperature is below 0 _C
(32 _F), the air conditioning will turn off au-
tomatically. At this time, the indicator on
“A/C” is off and the EXHAUST GAS AU-
TOMATIC indicator light remains on. How-
ever, the EXHAUST GAS AUTOMATIC
mode does not operate. When the air con-
ditioning turns on as with the raised tem-
perature, the EXHAUST GAS AUTOMAT-
IC mode resumes.
If the system is used for ventilation, heat-
ing in dry weather or removing frost or ex-
terior fog on the windshield, turn the air
conditioning off once it is no longer re-
quired. This will improve fuel economy.
The air conditioning can be used for year −
round automatic temperature control in-
cluding cooling and dehumidifying opera-
tion.
If the air conditioning compressor does not
operate, the indicator of “A/C”will blink.
If the indicator of “A/C”blinks even when
“A/C” is touched again, have the com-
pressor checked by your Lexus dealer.
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AIR CONDITIONING
261
(c) Rear window and outside rear view
mirror defogging
To turn the electric rear window and
outside rear view mirror defogger on,
push the button above.
The “ENGINE START STOP” switch must
be in IGNITION ON mode.
The thin heater wires on the inside of the
rear window and the heater panels in the
outside rear view mirrors will quickly clear
the surface.
Keep your hands off the mirror faces when
the system is on.
The indicator light is on when the defogger
is operating.
CAUTION
When the outside rear view mirror de-
foggers are on, do not touch the out-
side surface of the rear view mirror as
it can become very hot and burn you.
The system will automatically shut off
when the defogger has operated about 15
minutes.
If further defrosting or defogging is de-
sired, simply actuate the switch again.
When the surface has cleared, push the
button once again to turn the defogger off.
Continuous use may cause the battery to
discharge, especially during stop−and− go
driving. The defogger is not designed to
dry rain water or to melt snow.
If the outside rear view mirrors are heavily
coated with ice, use a spray de −icer before
operating the system.
NOTICE
DWhen cleaning the inside of the
rear window, be careful not to
scratch or damage the heater wires
or connectors.
DTo prevent the battery from being
discharged, turn the switch off
when the engine is not running.
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AIR CONDITIONING
262
(d) Micro dust and pollen filter
This vehicle is equipped with a micro
dust and pollen filter mode. When this
mode is activated, air from the vents
will remove pollen on the driver and
passengers.
Push the micro dust and pollen filter
button.
The indicator light and“A/C”come on.
The RECIRCULATED AIR mode is also
turned on at normal outside temperature.
Air is delivered from the instrument panel
vents to the areas near the driver and pas-
sengers to remove pollen on them.
When the interior is purified sufficiently
with fresh air (after about 3 minutes at nor-
mal outside temperature and about 1 min-
ute at low outside temperature), this mode
will be turned off automatically and the indi-
cator light will go out.
When the micro dust and pollen filter is ac-
tivated, this mode will be turned off by
pushing the micro dust and pollen filter but-
ton again. The indicator light will also go
out.
INFORMATION
D Use this mode to remove pollen
quickly carried by the driver or
passengers or through the window
in the days with much pollen.
D Use and push the windshield air
flow button to remove the fog on
the windshield in rainy days.
D Fresh air is delivered even when
the micro dust and pollen filter but-
ton is turned off.
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REAR VIEW MONITOR SYSTEM
274
NOTICE
DThe area detected by the camera is
limited. The camera does not de-
tect objects which are close to ei-
ther corner of the bumper or under
the bumper.
DThe area displayed on the screen
may vary according to vehicle ori-
entation or road conditions.
DThe rear view monitor system cam-
era
The rear view monitor system camera is lo-
cated on the trunk as shown in the illustra-
tion.
In the following cases, it may become diffi-
cult to see the images on the screen, even
when the system is functioning.
DIn the dark (for example, at night)
DWhen the temperature near the lens is
high or low
DWhen water droplets are adhering to
the camera, or when humidity is high
(for example, when it rains)
DWhen foreign matter (for example,
snow or mud) is adhering to the camera
DWhen the camera has scratches or dirt
on it
DWhen the sun or the beam of head-
lights is shining directly into the camera
lens
NOTICE
The camera uses a special lens. The
distance of the image that appears on
the screen differs from the actual dis-
tance.
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REAR VIEW MONITOR SYSTEM
275
If a bright light (for example, sunlight re-
flected off the vehicle body) is picked up by
the camera, the smear effect

peculiar to
the camera may occur.

: Smear effect—A phenomenon that oc-
curs when a bright light (for example, sun-
light reflected off the vehicle body) is
picked up by the camera; when trans-
mitted by the camera, the light source ap-
pears to have a vertical streak above and
below it.
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LEXUS PARKING ASSIST−SENSOR
278
The Lexus parking assist−sensor is a
warning system used when parking the
vehicle at low speed (e.g. into a garage).
It uses an ultrasonic sensor, which
checks the approximate distance to an
obstacle. It will inform you of the
approximate distance to an obstacle by
displaying information on the multi −in-
formation display and the screen, and
with beeping sounds.
1Front corner sensors
There is one of these installed on each cor-
ner of the front bumper, they inspect ob-
stacles and will sound a warning depend-
ing on the distance to the obstacle. (See
“ — Front corner sensors” on page 280.)
2Rear corner sensors
There is one of these installed on each cor-
ner of the rear bumper, they inspect ob-
stacles and will sound a warning depend-
ing on the distance to the obstacle. (See
“ — Rear corner sensors” on page 281.)
3Back sensors
There are two of these installed near the
center of the rear bumper, they inspect ob-
stacles and will sound a warning depend-
ing on the distance to the obstacle. (See
“ — Back sensors” on page 282.)
To use the parking assist −sensor, with
the “ENGINE START STOP” switch in
IGNITION ON mode, push “
”or“”
of the satellite switch to select the park-
ing assist− sensor and then push the
ON/OFF button. Selecting the parking
assist− sensor and pushing the ON/OFF
button of the satellite switch again will
turn the parking assist −sensor off.
When you turn on the parking assist −sen-
sor, the indicator light in the instrument
cluster comes on and a beep sounds for
one second, indicating that the parking as-
sist− sensor is turned on.
The parking assist −sensor will remain on
even after turning the “ENGINE START
STOP” switch to OFF and then to IGNI-
TION ON mode with the main switch on.
However, a beep does not sound at this
time.
If an error is detected in the Lexus parking
assist− sensor while self −checking, beeps
sound and a warning appears in the multi −
information display and on the screen. For
details, see “ — Lexus parking assist −sen-
sor failure warning” on page 285.
IS F/350/250_Navi_U
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Lexus parking
assist− sensor —

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LEXUS PARKING ASSIST−SENSOR
286
(a) When snowflakes or mud gets on
the sensors
"1Multi−information display
2Touch screen
If foreign matter gets on the sensors
and the parking assist −sensor cannot
detect the object properly, the above
message appears. At this time, the ve-
hicle symbol and the indicator bars cor-
responding to the faulty sensors flash
for about 7 seconds and 2 beeps sound
5 times.
After about 7 seconds, the sensor indi-
cator bars will cease flashing, however
will stay lit until the affected sensor is
cleaned. Furthermore, the vehicle sym-
bol will continue to flash until the af-
fected sensor is cleaned.
The above illustration shows the sensor on
the left front of the vehicle malfunctioning.
If the failure warning does not go off even
after the foreign matter is removed, the
parking assist −sensor may be malfunc-
tioning. Have it checked by your Lexus
dealer. (b) When the sensor is malfunctioning
"1Multi−
information display
2Touch screen
If the sensor cable is broken and the
parking assist− sensor cannot detect
the object properly, the above message
appears. At this time, the indicator bars
corresponding to the faulty sensor
flash for about 7 seconds and 2 beeps
sound 5 times.
The indicator bars continue lighting af-
ter flashing.
The above illustration shows the sensor on
the right rear of the vehicle malfunctioning.
If this message appears, have the parking
assist− sensor checked by your Lexus
dealer.
IS F/350/250_Navi_U
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