2006 Lexus GS430 stop start

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363
(e) Parking
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 1Parking brake pedal 2Brake pedal
3“P” (Park) position
1. Bring the vehicle to a complete stop.
2. Depress the parking brake pedal fully to securely apply the
parking brake.
3. With the brake pedal held down with your foot, shift the
selector lever to the “P” position.
CAUTION
Never attempt to move the selector lever into “P” under
any circumstances while the vehicle is moving. Serious
mechanical damage and loss of vehicle control may
result.
(f) Good driving practice
If the transmission repeatedly shifts up and down between
fourth and overdrive gears when climbing a gentle slope, shift
the selector lever to the “4” position. Be sure to shift the
selector lever to the “D” position after climbing the slope.
CAUTION
Always keep your foot on the brake pedal while stopped
with the engine running. This prevents the vehicle from
creeping.
NOTICE
Always use the brake pedal or the parking brake to hold
the vehicle on an upgrade. Do not attempt to hold the
vehicle using the accelerator pedal, as this can cause
the transmission to overheat.

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367
Where to display
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Multiinformation display
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 1
Touch screen (full screen display)
2Touch screen
(vehicles with rear view monitor system)
(For details, see page 382.)
When an obstacle is detected, the indicator bars will come
on or flash, accompanied by beeping. How many bars are
lit or flashing depends on the distance to the obstacle.
When the obstacle is not detected any longer, beeps will stop
sounding and the multi −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 intuitive parking assist” on page
385.

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371
(B) Collision will be avoided by changing the steering
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 3
About 50 cm (1.5 ft.) to about 100 cm (3.0 ft.)
4About 37.5 cm (1.1 ft.) to about 50 cm (1.5 ft.)
5About 25 cm (0.8 ft.) to about 37.5 cm (1.1 ft.)
The steering guide symbol and the arrow indicating which
direction should be steered appear along with the bar
indicators and beeps. The above illustration indicates that the collision will be
avoided by turning the steering wheel clockwise.
When
the possibility that the distance between the vehicle and
the obstacle is less than about 25 cm (0.8 ft.) is eliminated by
turning the steering wheel more, the steering guide symbol will
go out and the beeps will stop sounding.
The steering guide symbol and arrow are not instructions
you must observe. They are just a guide to avoid a
collision.
1 Multiinformation display:
The indicator bars will come on depending on the
distance to the obstacle . The steering guide symbol and
arrow will also come on.
2Screen:
The indicator bars will come on in yellow depending on
the distance to the obstacle. The steering guide symbol
and arrow will also come on. In addition, the current
direction of the tires is also indicated in 3 stages.
Beeps:
As distance to the obstacle gets closer, the interval of the
intermittent sound gets shorter, and then finally to a continuous
sound when the distance between the vehicle and the obstacle
is less than about 25 cm (0.8 ft.).

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377
NOTE:
* The detection range can be changed from about 50 cm
(1.5 ft.) for dual sensors and about 60 cm (2 ft.) for back
sensors.
Ask your Lexus dealer for details.
The intuitive parking assist may not work properly in the
following cases:
 When the bumper is damaged.
 When the part near the sensors is subjected to a strong
impact.
 When an accessory is installed within the sensor detection
range.
 When snowflakes or mud gets on the sensors.
(If removed, the system will work properly.)
 When water is splashed from a high pressure car wash or
steam on the sensors.
 When a sensor is covered with your hand.
 When the vehicle is tilted.
 In extreme hot or cold weather
(In extreme cold weather, the error display appears and the
system becomes inoperative.)
 When driving on bumpy roads, slopes, gravelled roads or
grass. 
Devices issuing ultrasonic waves are operated around your
vehicle, such as a horn from another vehicle, motorcycle
engine, air braking sound from heavy −duty vehicles.
 When another vehicle equipped with ultrasonic sensors
gets close to your vehicle.
 When heavy rain or water is splashed over the vehicle.
(Drive carefully as the braking distance may be affected.)
 When a radio antenna or fender pole is mounted on your
vehicle.
 If towing eyelet is installed on your vehicle.
 When you are driving towards a tall curb stone or curb stone
having right angle.
 The detection range for an object such as a traffic sign may
be shortened.
 An object just under the bumper cannot be detected.
Although an object lower than the location of sensors is
once detected, the detection might be stopped when your
vehicle gets closer to the object.
 When an obstacle is very close to the sensors.

STARTING AND DRIVING
378The intuitive parking assist may not detect the following:

Thin objects such as wire or rope
 Sound wave absorbing objects such as cotton or snow
 Objects with a sharp edge
 Tall objects with the upper part projected
 Shorter objects
Intuitive parking assist failure warning
If an error is detected when the intuitive parking assist is
turned on, the vehicle symbol comes on or flashes with
beeping sounds.
At this time steering guidance is temporarily stopped.
However, the sensors functioning properly continue their
obstacle detection. For details, see “When the detection range
of the sensors is shorter” on page 381.
The intuitive parking assist failure warning display is not given
in either of the following operations:
 Changing to another screen
 Turning off the main switch for the intuitive parking assist

STARTING AND DRIVING
380When the steering sensor is malfunctioning
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If the steering sensor cable is broken and signals cannot
be received, the vehicle symbol comes on and the
steering guide symbol and arrows flash.
If only the steering sensor is malfunctioning, the warning
appears only on the multi
−information display.
If this warning appears, have the sensor checked by your
Lexus dealer as soon as possible. When
the neutral point of the steering sensor is unknown
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If the memorized neutral point of the steering is erased by
replacing the battery, the vehicle symbol, steering guide
symbol and arrows come on.
If only the neutral point of the steering sensor is unknown, the
warning appears only on the multi −information display.
If this warning appears, calibrate the neutral point of the
steering using either of the following:
 Turn the steering wheel either way fully and then in the
opposite direction fully and slowly, with the vehicle stopped.
 Drive on roads (with as few curves as possible and without
backing up) for more than about 5 minutes.
If this warning goes out, the calibration of the steering neutral
point is completed. If the warning still remains on, have the
sensor checked by your Lexus dealer as soon as possible.

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381
As the intuitive parking assist might be malfunctioning in
the following cases, have it checked by your Lexus dealer.

The indicator in the instrument cluster does not come on
and a beep does not sound even when the intuitive parking
assist main switch is turned on.
 The warning comes on despite no obstacle around the
vehicle.
When the detection range of the sensors is
shorter
In the following cases, the sensors will detect an obstacle
about 50 cm (1.5 ft.) from either front corner of the vehicle
and the steering guidance will be stopped. Accordingly,
the tire orientation symbol on the screen does not appear.
And only the warning according to the distance up to the
obstacle is given.
a. Any one of the sensors is malfunctioning.
b. Any one of the steering sensors is malfunctioning.
c. The steering sensor signal cannot be received properly.
d. The correct vehicle information cannot be given due to
extremely low battery voltage.
e. Proper steering detection (going straight) cannot be
detected
In case of a., when the intu itive parking assist returns to
normal, the steering guidance also comes back automatically.
In case of b. through e., the steering guidance also comes back
automatically after the neutral point of the steering sensor
calibration is completed.

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CAUTION
Under certain conditions where the vehicle in front
slows drastically, or is stopped, the dynamic radar
cruise control will neither warn you nor decelerate. The
driver must depress the brake pedal to slow down,
ensuring collision avoidance or that sufficient
vehicletovehicle distance is maintained.
When vehicle−to−vehicle distance control mode is activated,
you must still be attentive to road and traf fic conditions. Should
your vehicle speed decrease below about 40 km/h (25 mph),
the dynamic radar cruise control will shut off, requiring you to
apply the brakes to slow. When a vehicle ahead slows
suddenly, stops or a vehicle cuts in front, the system may slow
your vehicle abruptly, but the automatic braking will cease if the
speed decreases below about 40 km/h (25 mph) requiring the
driver’s manual application of brakes.
CAUTION
Certain conditions make vehicle detection difficult or
impossible.
 As this system operates by detecting primarily the
reflected wave from the rear end of the vehicle ahead,
the distance cannot be accurately detected in the
following cases, resulting in improper
vehicletovehicle distance.
♦ The rear section of the vehicle ahead is extremely
small such as an unloaded trailer.
♦ The vehicle ahead or other vehicles around you
are flinging up water or snow.
♦ Heavy luggage which is loaded in your trunk or on
top of your rear seats is raising up the nose of your
vehicle.
 The millimeter wave radar sensor automatically
detects dirt if it is sticking to the front of the sensor
or cover of your vehicle, and if detected, a message
appears on the multiinformation display. However,
if the sensor or cover is covered with a metallic vinyl
bag, icicle, snowflakes, etc., dirt may not be detected,
resulting in improper vehicletovehicle distance.
Continue driving with due care to the vehicle ahead.
If dirt is detected, the dynamic radar cruise control
function is automatically cancelled. Always keep the
sensor and cover clean.