2006 Lexus GS430 parking sensors

GAUGES, METERS AND SERVICE REMINDER INDICATORS
94
G13017
If the steering lock is malfunctioning, the master warning
light comes on, the engine switch indicator light blinks
amber and the above message appears.
The engine will not start in this case. Contact your Lexus
dealer as soon as possible.
G13018
If the steering lock is not unlocked due to the load applied
to the steering wheel when pushing the engine switch, the
master warning light comes on, the engine switch
indicator light blinks green and the above message
appears.
The engine will not start in this case. To start the engine, push
the engine switch again while turning the steering wheel in
either direction.
Intuitive Parking Assist Warning
G13077
If icicles, snowflakes or mud gets on the ultrasonic
sensors of the intuitive parking assist when it is on, the
above message appears and the vehicle symbol and
indicator bars continue flashing until the suspected
sensor is cleaned.
Remove the foreign matter or deice the sensor, the intuitive
parking assist returns to normal.
G13076
If the ultrasonic sensor of the intuitive parking assist is
malfunctioning or a sensor cable is broken when it is on,
the malfunctioning sensor flashes, 2 beeps sound 5 times
and the above message appears.
The flashing sensor is disabled, but other sensors work
properly. Have your vehicle checked by your Lexus dealer as
soon as possible.

STARTING AND DRIVING
372
INTUITIVE PARKING ASSIST
G31049
The intuitive parking assist 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 multiinformation display and the
screen, and with beeping sounds.
1 Dual sensors
There are four of these steering guidance sensors installed in
the front bumper.
Steering guidance means that when an obstacle is inspected,
not only is the distance estimated, this function judges whether
collision with the obstacle within detection range is avoidable
if the vehicle is steered in a certain direction, and informs the
driver. There will be no warning if it judges that there is no
possibility of collision with the obstacle within detection range.
(See page 375.)
2 Rear corner sensors
There is one of these installed on each corner of the rear
bumper, they inspect obstacles and will sound a warning
depending on the distance to the obstacle. (See page 380.)
3 Back sensors
There are two of these installed near the center of the rear
bumper, they inspect obstacles and will sound a warning
depending on the distance to the obstacle. (See page 381.)

STARTING AND DRIVING
374
G31052
 1Touch screen (full screen display)
2Touch screen
(vehicles with rear view monitor system)
(For details, see page 388.)
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
391.
Indicators and steering guide symbol
G31053
 1 Detection by dual sensors
2Detection by rear corner sensors
3Detection by back sensors
4Steering guide symbol (See page 377)
The approximate distance to the obstacle is shown with up to
4 bars on the front, front corners and rear of the vehicle and up
to 3 bars on the rear corners of the vehicle.

STARTING AND DRIVING
376The selector lever must be in any position other than “P” or “R”
for these sensors to operate, however the obstacle at an angle
to the front of the vehicle will also be detected while the selector
lever is in “R”.
CAUTION
With long obstacles such as walls, the decision of the
sensor may change as the obstacle gets closer; from
certain avoidance to avoidance if steering is changed;
from certain avoidance to unavoidable collision; and
there are also times when
the decision will be changed
from avoidance if steering is changed, to certain
collision. When you move your vehicle, be sure to
confirm a safe distance around your vehicle with your
eyes and drive slowly, or an accident or injury may
result.
The steering guidance may not operate properly in the
following conditions:
 Tires other than those of Lexus genuine size are
installed.
 The steering sensor information cannot be received
properly. (See “Intuitive parking assist failure warning”
on page 385.) (A) Collision will be unavoidable
G31055
 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.)
6Less than about 25 cm (0.8 ft.)

STARTING AND DRIVING
383
Detection range of sensors*
G31061
 1About 3 m (10 ft.) 2About 1 m (3 ft.)
3About 1m 50 cm (5 ft.) 4About 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. 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.

STARTING AND DRIVING
384
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. The 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

STARTING AND DRIVING
385
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 388.
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 When snowflakes or mud gets on the sensors
G31062a
 1
Multiinformation display 2Screen
If foreign matter gets on the sensors and the intuitive
parking assist cannot detect the object properly, the
above message appears. At this time, the vehicle symbol
and the indicator bars corresponding to the faulty
sensors flash for about 7 seconds and 2 beeps sound 5
times.
After about 7 seconds, the sensor indicator bars will
cease flashing, however will stay lit until the affected
sensor is cleaned. Furthermore, the vehicle symbol will
continue to flash until the affected 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 intuitive parking assist may be
malfunctioning. Have it checked by your Lexus dealer.

STARTING AND DRIVING
388
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.
Rear view monitor display (Vehicles with rear
view monitor system)
G31066
On vehicles equipped with rear view monitor system, a
warning appears on the right top of the rear view monitor
in the following conditions.
 When the selector lever is put in “R” and the rear view
monitor is turned on.
 When the intuitive parking assist main switch is turned on
and any sensor detects an obstacle.
Although “Display Off” is selected in the intuitive parking assist
setting screen, the warning appears on the right top of the rear
view monitor.