sensor Lexus IS250 2009 Navigation Manual

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IS F/350/250_Navi_U
(L/O 0808)
8
6 Audio/video System
Quick reference186
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Using your audio/video system 187
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Some basics 187 ..........................................
Radio operation 195 .......................................
CD changer operation 206 ..................................
DVD changer operation 219 .................................
Audio/video remote controls 240 ...............................
Audio/video system operating hints 241 .........................
7 Air Conditioning
Automatic air conditioning controls 250
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8 Rear View Monitor System
Rear view monitor system 272
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9 Lexus Parking Assist− Sensor
Lexus parking assist−sensor 278 ...............................
10 Appendix
Limitations of the navigation system 294
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Map database information and updates 296
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Index 309
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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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REAR VIEW MONITOR SYSTEM
272
The rear view monitor system assists
the driver by displaying an image of the
view behind the vehicle while backing
up. The image is displayed in reverse
on the screen. This allows the image to
appear in the same manner as that of
the rear view mirror.
To display the rear view image on the
screen, shift the shift lever to “R” (auto-
matic transmission) or reverse (manual
transmission) when the “ENGINE
START STOP” switch is in IGNITION ON
mode.
If you move the shift lever out of the “R”
(automatic transmission) or reverse
(manual transmission), the screen returns
to the previous screen. Operating another
function of the navigation system will dis-
play another screen.
Vehicles with Lexus parking assist−sen-
sor — when the Lexus parking assist −
sensors are turned on and an obstacle is
detected in front of or behind your ve-
hicle, a warning appears on the right top
of the rear view monitor. For details, see
“Lexus parking assist −sensor” on page
278.
The rear view monitor system is a supple-
ment device intended to assist back up.
When backing up, be sure to check behind
and all around the vehicle visually.
CAUTION
DNever depend on the rear view
monitor system entirely when
backing up. Always make sure
your intended path is clear.
Use caution, just as you would
when backing up any vehicle.
DNever back up while looking only at
the screen. The image on the
screen is different from actual
conditions. Depicted distances
between objects and flat surfaces
will differ from actual distance. If
you back up while looking only at
the screen, you may hit a vehicle, a
person or an object. When backing
up, be sure to check behind and all
around the vehicle visually and
with mirrors before proceeding.
DDo not use the system when the
trunk is not completely closed.
DIf the back of the vehicle is hit, the
position and mounting angle of the
camera may change. Be sure to
have the camera’s position and
mounting angle checked at your
Lexus dealer.
DAs the camera has a water proof
construction, do not detach, disas-
semble or modify it. This may
cause incorrect operation.
DIf the temperature changes rapidly,
such as when hot water is poured
on the vehicle in cold weather, the
system may not operate normally.
IS F/350/250_Navi_U
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Rear view monitor system
—

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SECTION
9
LEXUS PARKING ASSIST− SENSOR
277
LEXUS PARKING ASSIST−SENSOR
D Lexus parking assist −sensor 278 ............................
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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.
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Lexus parking
assist− sensor —

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LEXUS PARKING ASSIST−SENSOR
279
"Multi− information display
"1Touch screen (full screen dis-
play)
2Touch screen (vehicles with rear
view monitor system)
(See “ — Rear view monitor dis-
play” on page 287.)
When an obstacle is detected, the indi-
cator bars will come on or flash, accom-
panied by beeping. How many bars are
lit or flashing depends on the distance
to the obstacle.
When the obstacle is not detected any lon-
ger, beeps will stop sounding and the mul-
ti− information display and the screen will
return to the previous display.
The volume of the beeps and the display
on the screen can be changed. See “ —
Setting the Lexus parking assist −sensor”
on page 289.
"1Detection by front corner sen-
sors
2Detection by rear corner sensors
3Detection by back sensors
The approximate distance to the obstacle
is shown with up to 4 bars on the rear of the
vehicle and up to 3 bars on the front cor-
ners and the rear corners of the vehicle.
CAUTION
To avoid an accident or injury, ob-
serve the following instructions, and
then drive slowly using the brakes
while visually confirming a safe dis-
tance around your vehicle.
DThe sensor detection range is limit-
ed around the bumper. Be sure to
visually confirm safety outside the
sensor detection. For the sensor
detection range, see “ — Detection
range of sensors” on page 284.
DIt might take time for the sensors to
detect obstacles.
DDepending on the shape of the ob-
stacle, indicators or beeps may not
warn you properly, and the detec-
tion range may also be shortened.
DIt might be difficult to hear beeps
due to the volume of audio or air
flow noise of the air conditioning.
IS F/350/250_Navi_U
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— Where to display — Indicators

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LEXUS PARKING ASSIST−SENSOR
280
"Multi− information display
"Touch screen
1About 1.1 ft. (37.5 cm) to about
1.5 ft. (50 cm)
2About 0.8 ft. (25 cm) to about
1.1 ft. (37.5 cm)
3Less than about 0.8 ft. (25 cm)
The front corner sensor only operates
when the vehicle speed is less than
about 6 mph (10 km/h). It checks the
approximate distance to obstacles at
an angle to the front of the vehicle, and
sounds a warning depending on the
distance. This sensor does not operate
if the transmission is in “P” position
(automatic transmissions), or the park-
ing brake is set (manual transmis-
sions). Multi−
information display:
The indicator bars come on depending on
the distance to the obstacle and flash
when the distance between the vehicle
and the obstacle is less than about 0.8 ft.
(25 cm).
Touch screen:
When an obstacle is detected, indicator
bars illuminate in yellow. The number of
the indicator bars reduces as the vehicle
gets closer to the obstacle, and turn red
when the distance between the vehicle
and obstacle is less than 0.8 ft. (25 cm).
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm).
CAUTION
When you move your vehicle, be sure
to visually confirm a safe distance
around your vehicle and drive slowly,
or an accident or injury may result.
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— Front corner sensors

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LEXUS PARKING ASSIST−SENSOR
281
"Multi− information display
"Touch screen
1About 1.1 ft. (37.5 cm) to about
1.5 ft. (50 cm)
2About 0.8 ft. (25 cm) to about
1.1 ft. (37.5 cm)
3Less than about 0.8 ft. (25 cm)
The rear corner sensor only operates
when the vehicle speed is less than
about 6 mph (10 km/h) and the trans-
mission is in “R” (automatic transmis-
sion) or reverse (manual transmission),
it checks the approximate distance to
obstacles at an angle to the rear of the
vehicle, and sounds a warning depend-
ing on the distance. Multi−
information display:
The indicator bars come on depending on
the distance to the obstacle and flash
when the distance between the vehicle
and the obstacle is less than about 0.8 ft.
(25 cm).
Touch screen:
When an obstacle is detected, indicator
bars illuminate in yellow. The number of
the indicator bars reduces as the vehicle
gets closer to the obstacle, and turn red
when the distance between the vehicle
and obstacle is less than 0.8 ft. (25 cm).
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 0.8 ft. (25 cm).
CAUTION
When reversing, be sure to visually
confirm a safe distance around your
vehicle to avoid an accident.
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— Rear corner sensors

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LEXUS PARKING ASSIST−SENSOR
282
"Multi− information display
"Touch screen
1About 1.8 ft. (60 cm) to about
4.5 ft. (150 cm)
2About 1.4 ft. (45 cm) to about
1.8 ft. (60 cm)
3About 1.1 ft. (35 cm) to about
1.4 ft. (45 cm)
4Less than about 1.1 ft. (35 cm)
The back sensor only operates when
the transmission is in “R” (automatic
transmission) or reverse (manual
transmission), it checks the approxi-
mate distance to obstacles close to the
rear of the vehicle, and sounds a warn-
ing depending on the distance. Multi−
information display:
The indicator bars come on depending on
the distance to the obstacle and flash
when the distance between the vehicle
and the obstacle is than about 1.1 ft. (35
cm).
Touch screen:
When an obstacle is detected, indicator
bars illuminate in yellow. The number of
the indicator bars reduces as the vehicle
gets closer to the obstacle, and turn red
when the distance between the vehicle
and obstacle is less than 1.1 ft. (35 cm).
Beeps:
As distance to the obstacle gets closer, the
interval of the intermittent sound gets
shorter, and then finally changes to a con-
tinuous sound when the distance between
the vehicle and the obstacle is less than
about 1.1 ft. (35 cm).
CAUTION
When reversing, be sure to visually
confirm a safe distance around your
vehicle to avoid an accident.
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— Back sensors

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LEXUS PARKING ASSIST−SENSOR
283
When obstacles are detected on the
front and rear of the vehicle at the same
time; the multi−information display and
screen illuminate their relevant indica-
tor bars. And beeps are as follows:
1Obstacles detected on the front
and rear of the vehicle are not in
areas where continuous beeping
should sound:
The warning for the obstacle closer to the
vehicle will be issued. The above illustra-
tion indicates the obstacle detected by the
back sensors is closer to the vehicle. So,
the warning for the obstacle detected by
the back sensors will be given.
2The obstacle detected on the front
or rear of the vehicle is in an area
where continuous beeping should
sound:
If the possibility of collision with the ob-
stacle is high as shown, the parking as-
sist− sensor warns the driver by continu-
ous beeping (repeating 7 intermittent
beeps and one longer beep as one cycle).
3Both obstacles detected on the
front and rear of the vehicle are in
areas where continuous beeping
should sound:
If the possibility of collision with the ob-
stacles is very high as shown, the parking
assist− sensor warns the driver by continu-
ous beeping (repeating 3 quick beeps and
one longer beep as one cycle).
CAUTION
It might be difficult to hear beeps due
to the volume of audio or air flow
noise of the air conditioning. To
avoid an accident or injury, drive
slowly using the brakes while visual-
ly confirming a safe distance around
your vehicle.
IS F/350/250_Navi_U
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— Numerous obstacles are
detected on the front and rea
r
of the vehicle simultaneously