Lexus IS250 2009 Navigation Manual

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AIR CONDITIONING
270
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SECTION
8
REAR VIEW MONITOR SYSTEM
271
REAR VIEW MONITOR SYSTEM
D Rear view monitor system 272 ..............................
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REAR VIEW MONITOR SYSTEM
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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.
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Rear view monitor system
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D
If the camera lens becomes dirty, it
cannot transmit a clear image. If
water droplets, snow, or mud ad-
here to the lens, rinse with water
and wipe with a soft cloth. If the
lens is extremely dirty, wash it with
a mild cleanser and rinse.
DDo not allow organic solvent, car
wax, window cleaner or glass coat
to adhere to the camera. If this hap-
pens, wipe it off as soon as pos-
sible.
DUse your own eyes to confirm the
vehicle’s surroundings, as the dis-
played image may become faint or
dark, and moving images will be
distorted, or not entirely visible
when the outside temperature is
low. When backing up, be sure to
check behind and all around the ve-
hicle visually and with mirror be-
fore proceeding.
DDo not use the system in the follow-
ing cases:
DOn icy or slick road surfaces, or
in snow.
DWhen using tire chains or emer-
gency tires.
DOn an uneven road, such as a
slope.
NOTICE
When replacing the tires, please con-
sult your Lexus dealer. If you replace
the tires, the area displayed on the
screen may change.
DArea displayed on screen
Image is displayed approximately level
on screen.
" Corners of bumper
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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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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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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
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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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"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.
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— Where to display — Indicators