2005 LEXUS LS430 snow

STARTING AND DRIVING
307
(a) Normal driving
31L321a
 1“P” (Park) position 2“N” (Neutral) position
1. Start the engine as instructed in “How to start the
engine” on page 304.
The transmission must be in “P” or “N” position. The engine wi\
ll
not start in any drive position even if the ignition switch is turned
to “START”.
31L322
 1 Power position 2Normal position
3Snow position
2. Set the driving pattern selector switch to the “Normal”
position.
Your transmission has a driving pattern selector switch which
allows you to select “Power”, “Normal” or “Snow” mode to suit\
your driving condition. For ordinary driving, Lexus
recommends that you use the “Normal” position to improve fuel
economy.
3. For more powerful acceleration and sporty driving, use
the “Power” position.
In the “Power” position, the “ECT PWR” light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively than in the
“Normal” position.
For “Snow” mode, see “Electronic Throttle Control
System” on page 315.

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(g) If you cannot shift the selector lever
If you cannot shift the selector lever even though the brake
pedal is depressed, use the shift lock override button. For
instructions, see “If you cannot shift automatic transmission
selector lever” on page 423.
ELECTRONIC THROTTLECONTROL SYSTEM
The electronic throttle control system always maintains
appropriate engine output in relation to the accelerator
opening in all driving conditions.
31L322
 1Power position 2Normal position
3Snow position
The electronic throttle control system has 3 modes:
Normal, Power and Snow modes.
Normal mode: For ordinary driving, Lexus recommends that
you use the normal mode to improve fuel economy.
Power mode: For more powerful acceleration and sporty
driving.

STARTING AND DRIVING
316In the power mode, the “ECT PWR” light in the instrument
cluster is on and the transmission is shifted up at higher vehicle
speeds and shifted down more responsively
than in the normal
mode.
To return to the normal mode, push the driving pattern selector
switch lightly on the “SNOW” side.
Snow mode: For slippery road surfaces such as in snow. In
this mode, the spinning of the rear wheels is controlled
appropriately.
When you push the driving pattern selector switch on the
“SNOW” side, the snow mode is turned on and the “ECT
SNOW” light in the instrument cluster comes on.
To return to the normal mode, push the driving pattern selector
switch on the “SNOW” side again.
When you turn the ignition switch off in the snow mode, the
mode automatically changes to the normal mode.
LEXUS PARK ASSIST SYSTEM
31L354b
 Sensors
The Lexus park assist system will help you to easily park
by detecting any obstacle around your vehicle with
ultrasonic sensors and informing you of the approximate
distance from the vehicle to the obstacle with the
indicators on the display and with beeping sounds.*
This system will operate at a vehicle speed of less than about
10 km/h (6 mph) with the selector lever in a position other than
“P”.
NOTE:
* The volume of the beeps can be changed.
Ask your Lexus dealer for details.

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320
W285
If the sensor is malfunctioning or a cable is broken, the
above message appears.
Although it is no problem to continue driving, have your vehicle
checked by your Lexus dealer as soon as possible.
W286
If icicles, snowflakes or mud gets on the sensor or it is
frozen, the sensor may not be able to detect an obstacle.
In either case, the above message appears.
Remove the foreign matter or deice the sensor. If the message
does not appear after cleaning, the system is operating
properly.
Lexus park assist system operating hints
31L355
 Sensor detection range
1
About 1 m (3 ft.) 2About 50 cm (1.5 ft.)
The sensor detection range is limited around the bumper.
Be sure to confirm a safe distance around your vehicle
and drive slowly.
If more than one obstacle is detected in the same
direction, the indicators for the obstacle nearest to the
vehicle will turn on.

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321
CAUTION
Do not install an accessory or the like within the sensor
detection range. Doing so may cause the Lexus park
assist system to malfunction, resulting in an accident.
NOTICE
The sensors do not detect an obstacle just under the
bumper. A short object, thin stake or the like will be
detected once but might not be detected as your
vehicle gets very close to such an object.
 If an obstacle is very close to your vehicle, it might
not be detected.
 If a sensor is subjected to a strong impact, it will not
operate properly.
The Lexus park assist system may not work properly in
the following cases:
When icicles, snowflakes or mud gets on the sensors.
If removed, the system will work properly.
 When the sensor is frozen.
If deiced, the system will work properly.
 When the sensor is covered with something.
If removed, the system will work properly. Especially in cold weather, a malfunction warning screen may
appear on
the display due to frozen sensors. If the “Clean Park
Sonar” appears on the display, be sure to clean the sensor. If
the “Clean Park Sonar” appears despite no mud, ice or
snowflakes on the sensor, the sensor might have
malfunctioned. Have your vehicle checked by your Lexus
dealer.
In the following conditions, the detection range may be
affected:
 When you stop your vehicle in extreme hot or cold weather.
 Foreign matter such as snowflakes or mud gets on the
sensor.

STARTING AND DRIVING
322The Lexus park assist system may detect the following by
mistake:

Bumpy roads or gravelled roads or grass when driving on
such surfaces, or on grass
 Devices issuing ultrasonic waves, such as a horn from
another vehicle, motorcycle engine, air braking sound from
heavy−duty vehicles, if such a device is operated around
your vehicle
 Rain or water splashing over the sensor
 The ground on which the vehicle is tilted
 Radio antenna or fender pole mounted on your vehicle
 Mud, ice or snowflakes on the sensor
 Tall curb stone
 Towing eyelet mounted on your vehicle
 Towing hitch mounted on your vehicle The Lexus park assist system may not detect the
following:

Thin objects such as wire or rope
 Objects with a surface area too small to reflect ultrasonic
waves such as wire gauze or fence
 Sound wave absorbing objects such as cotton or snow
 Objects with a sharp edge
 Shorter objects
 Tall objects with the upper part projected
For vehicles with a Navigation System, the park assist
graphics appear both on the navigation display and
multi− information display. For details, see the separate
“Navigation System Owner’s Manual”.
For vehicles sold in Canada
This ISM device complies with Canadian ICES −001.

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If the camera lens becomes dirty, it cannot transmit
a clear image. If water droplets, snow, or mud adhere
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.
 The displayed image may become darker and moving
images may be slightly distorted when the system is
cold. When backing up, be sure to check behind and
all around the vehicle visually and with mirror before
proceeding.AREA DISPLAYED ON SCREEN
Image is displayed approximately level on screen.
31L356
Check surroundings for safety.
 Corners of bumper

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The area covered by the camera is limited. Objects
which are close to either corner of the bumper or under
the bumper cannot be seen on the screen.
 The area displayed on the screen may vary according
to vehicle orientation or road conditions. REAR VIEW MONITOR SYSTEM CAMERA
31L352
The rear view monitor system camera is located on the trunk
as shown in the illustration. The camera uses a special lens.
The distance of the image that appears on the screen differs
from the actual distance.
In the following cases, it may become difficult to see the images
on the screen, even when the system is functioning.

In the dark (for example, at night)
 When the temperature near the lens is extremely high or low
 When water droplets are adhering to the camera, or when
humidity is high (for example, when it rains)
 When foreign matter (for example, snow or mud) adheres
to the camera lens
 When the sun or the beam of headlights is shining directly
into the camera lens