2013 Lexus CT200h sensor

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You can change the buzzer sounds volume and the screen operating con-
ditions.
Lexus Display Audio system
Press the “MENU” button on the Lexus Display Audio controller, and
then select “Setup” on the screen.
Select “Vehicle”, and then select “LEXUS park assist” on the screen.
Select the desired item.
Navigation system
Press the “MENU” button on the Remote Touch, and then select
“Setup” on the screen.
Select “Vehicle”, and then select “LEXUS park assist settings” on the
screen.
Select the desired item.
The buzzer sounds volume can be adjusted.
On or off can be selected for Lexus parking assist-sensor display.
Rear center sensor display and tone indication can be set.
Setting up Lexus parking assist-sensor (vehicles with a Lexus Dis-
play Audio or navigation system)
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Lexus Display Audio screenNavigation system screen
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The Lexus parking assist-sensor can be operated when
Front corner sensors:
• The power switch is in ON mode.
• The shift position is in other than P.
• The vehicle speed is less than about 10 km/h (6 mph).
(At any speed when the shift position is in R)
Rear corner and rear center sensors:
• The power switch is in ON mode.
• The shift position is in R.
Lexus parking assist-sensor display
When an obstacle is detected while the rear view monitor system or Lexus park-
ing assist monitor is in use, the warning indicator will appear in the upper corner
of the screen even if the display setting has been set to off.
Sensor detection information
The sensor’s detection areas are limited to the areas around the vehicle’s
bumper.
Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect an obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on the sensor. (Wiping the sensors will resolve this
problem.)
• The sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor is frozen the screen may show an
abnormal display, or obstacles may not be detected.
• The sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,
air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• The sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or wireless antenna.
• Towing eyelets are installed.
• The bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or curved curb.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected.
• If obstacles draw too close to the sensor.
• A non-genuine Lexus suspension (lowered suspension etc.) is installed.
• People may not be detected if they are wearing certain types of clothing.
In addition to the examples above, there are instances in which, because of
their shape, signs and other objects may be judged by a sensor to be closer than
they are.

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The shape of the obstacle may prevent a sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of
your vehicle
The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection dis-
tance may shorten, or detection may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obstacle detection and display. Even at
slow speeds, there is a possibility that the obstacle will come within the sen-
sor’s detection areas before the display is shown and the buzzer sounds.
• Thin posts or objects lower than the sensor may not be detected when
approached, even if they have been detected once.
• It might be difficult to hear beeps due to the volume of audio system or air
flow noise of the air conditioning system.
If a message is displayed on the multi-information display
P. 575
Customization
Settings (e.g. buzzer sounds volume) can be changed.
(Customizable features: P. 659)

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WA R N I N G
When using the Lexus parking assist-sensor
Observe the following precautions.
Failing to do so may result in the vehicle being unable to be driven safely and
possibly cause an accident.
Do not use the sensor at speeds in excess of 10 km/h (6 mph).
The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially the
sides of the vehicle) for safety, and drive slowly, using the brake to control the
vehicle’s speed.
Do not install accessories within the sensors’ detection areas.
NOTICE
When using Lexus parking assist-sensor
In the following situations, the system may not function correctly due to a sen-
sor malfunction etc. Have the vehicle checked by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
The Lexus parking assist-sensor operation display flashes, and a buzzer
sounds when no obstacles are detected.
If the area around a sensor collides with something, or is subjected to strong
impact.
If the bumper collides with something.
If the display shows continuously without beeping, except when the buzzer
mute switch has been turned on.
If a display error occurs, first check the sensor.
If the error occurs even if there is no ice, snow or mud on the sensor, it is
likely that the sensor is malfunctioning.
Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.

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Screen description
The rear view monitor system screen will be displayed if the shift posi-
tion is shifted to R while the power switch is in ON mode.
Vehicle width guide line
The line indicates a guide path when the vehicle is being backed straight up.
The displayed width is wider than the actual vehicle width.
Vehicle center guide line
These lines indicate the estimated vehicle center on the ground.
Distance guide line (red)
The line shows distance behind the vehicle, a point approximately 0.5 m (1.5
ft.) from the edge of the bumper.
Distance guide line (blue)
The line shows distance behind the vehicle, a point approximately 1 m (3 ft.)
from the edge of the bumper.
Lexus parking assist-sensor display (if equipped)
Lexus Display Audio system type: If an obstacle is detected while the Lexus
parking assist-sensor is on, a display is shown at the top right corner of the
screen.
Using the rear view monitor system
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PCS (Pre-Crash Safety system)
Pre-crash seat belts (front seat belts only)
If the pre-crash sensor detects that a collision is unavoidable, the pre-
crash safety system will retract the seat belt before the collision occurs.
The same will happen if the driver makes an emergency braking or
loses control of the vehicle. (P. 4 1 )
However, when the VSC system is disabled, the system will not oper-
ate in the event of skidding.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the brake
pedal is depressed.
Pre-crash braking
When there is a high possibility of a frontal collision, the system warns
the driver using a warning light, warning display and buzzer. If the sys-
tem determines that a collision is unavoidable, the brakes are automati-
cally applied to reduce the collision speed. Pre-crash braking can be
disabled using the pre-crash braking off switch.
: If equipped
When the radar sensor detects possibility of a frontal collision, the pre-
crash safety system such as the brakes and seat belts are automatically
engaged to lessen impact as well as vehicle damage.

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Pre-crash braking disabled
Pre-crash braking enabled
The “PCS” warning light will
turn on when pre-crash braking is
disabled.
The radar sensor detects vehicles or
other obstacles on or near the road
ahead and determines whether a
collision is imminent based on the
position, speed, and heading of the
obstacles.
Disabling pre-crash braking
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Radar sensor

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Conditions that may trigger the system even if there is no possibility of a collision
When there is an object by the roadside at the entrance to a curve
When passing an oncoming vehicle on a curve
When driving over a narrow iron bridge
When there is a metal object on the road surface
When driving on an uneven road surface (nose up, nose down)
When passing an oncoming vehicle on a left-turn (left-hand drive vehicles) or
right-turn (right-hand drive vehicles)
When your vehicle rapidly closes on the vehicle in front
When a grade separation/interchange, sign, billboard, or other structure appears
to be directly in the vehicle’s line of travel
When the steep angle of the road causes a metal object located beneath the road
surface to be seen ahead of the vehicle
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
When passing through certain toll gates
When passing through an overpass
When passing through a tunnel
When the system is activated in the situations described above, there is also a
possibility that the seat belts will retract quickly and the brakes will be applied
with a force greater than normal. When the seat belt is locked in the retracted
position, stop the vehicle in a safe place, release the seat belt and refasten it.
Obstacles not detected
The sensor cannot detect plastic obstacles such as traffic cones. There may also
be occasions when the sensor cannot detect pedestrians, animals, bicycles,
motorcycles, trees, or snowdrifts.
Situations in which the pre-crash safety system does not function properly
The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of vehicle, such as at an intersection
If a vehicle suddenly cuts in front of vehicle, such as when overtaking
In inclement weather such as heavy rain, fog, snow or sand storms
When your vehicle is skidding with the VSC system off
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
Automatic cancelation of the pre-crash safety system
When a malfunction occurs due to sensor contamination, etc. that results in the
sensors being unable to detect obstacles, the pre-crash safety system will be auto-
matically disabled. In this case, the system will not activate even if there is a col-
lision possibility.