sensor Lexus CT200h 2011 (in English) Owner's Guide

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When driving
CT200h_EE (OM76041E)
CAUTION
Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
In heavy traffic
On roads with sharp bends
On winding roads
On slippery roads, such as those covered with rain, ice and snow
On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
At entrances to expressways
When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
When an approach warning buzzer is heard often
When emergency towing
When the sensor may not be correctly detecting the vehicle ahead
Apply the brakes as necessary when any of the following types of vehicles
are in front of you.
As the sensor may not be able to correctly detect these types of vehicles, the
approach warning (P. 259) will not be activated, and a fatal or serious
accident may result.
Vehicles that cut in suddenly
Vehicles traveling at low speeds
Vehicles that are not moving
Vehicles with small rear ends (trailers with no load on board etc.)
Motorcycles traveling in the same lane

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CT200h_EE (OM76041E)
CAUTION
Conditions under which the vehicle-to-vehicle distance control may not
function correctly
Apply the brakes as necessary in the following conditions as the radar sen-
sor may not be able to correctly detect vehicles ahead, and a fatal or serious
accident may result:
When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
When your vehicle is pointing upwards (caused by a heavy load in the
luggage compartment etc.)
When the road curves or when the lanes are narrow
When steering wheel operation or your position in the lane is unstable
When the vehicle ahead of you decelerates suddenly
Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively.
Otherwise, the system may not function correctly and could result in an
accident.
Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunc-
tion. If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by a any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
Do not disassemble the sensor.
Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
Do not modify or paint the sensor and grille cover.
Do not replace them with non-genuine parts.

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CT200h_EE (OM76041E)
Lexus parking assist-sensor

: If equipped
The distance from your vehicle to nearby obstacles when parallel
parking or maneuvering into a garage is measured by the sensors and
communicated via the multi-information display, touch screen and a
buzzer. Always check the surrounding area when using this system.
Types of sensors
Front corner sensors
Rear corner sensors
Rear center sensors
Lexus parking assist-sensor switch
Turns the Lexus parking
assist-sensor on/off
When on, the indicator light
comes on to inform the driver
that the system is operational.

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CT200h_EE (OM76041E)
Display
When the sensors detect an obstacle, a graphic is shown on the
multi information display depending on the position and distance
to the obstacle.
Multi-information display
Front corner sensor operation
Rear corner sensor operation
Rear center sensor operation
Touch screen
When the vehicle is moving
forward
A graphic is automatically dis-
played when an obstacle is
detected. The screen can be set
so that the graphic is not dis-
played. Refer to the “Naviga-
tion System Owner’s Manual”.
When the vehicle is moving
backward
A simplified image is displayed
on the right upper corner of the
touch screen when an obstacle
is detected.

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When driving
CT200h_EE (OM76041E)
The distance display and buzzer
When a sensor detects an obstacle, the direction of and the approx-
imate distance to the obstacle are displayed and the buzzer sounds.
Distance display
Corner sensors
The system operates when the vehicle approaches within
approximately 50 cm (1.6 ft.) of an obstacle.
Approximately 37.5 cm (1.2
ft.) to 50 cm (1.6 ft.) from the
obstacle
Approximately 25 cm (0.8
ft.) to 37.5 cm (1.2 ft.) from
the obstacle
Flashing: Within 25 cm (0.8
ft.) of the obstacle
Rear center sensors
The system operates when the vehicle approaches within
approximately 150 cm (4.9 ft.) of an obstacle.
Approximately 60 cm (2.0
ft.) to 150 cm (4.9 ft.) from
the obstacle
Approximately 45 cm (1.5
ft.) to 60 cm (2.0 ft.) from the
obstacle
Approximately 35 cm (1.1
ft.) to 45 cm (1.5 ft.) from the
obstacle
Flashing: Within 35 cm (1.1
ft.) of the obstacle

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CT200h_EE (OM76041E)Buzzer operation and distance to an obstacle
A buzzer sounds when the corner sensors and rear center sensor
are operating.
The buzzer beeps faster as the vehicle approaches an obstacle.
When the vehicle comes within the following distance of the
obstacle, the buzzer sounds continuously:
• Corner sensors:Approximately 25 cm (0.8 ft.)
•
Rear sensors: Approximately 35 cm (1.1 ft.)
When 2 or more obstacles are detected simultaneously, the
buzzer system responds to the nearest obstacle.
Detection range of the sensors
Approximately 50 cm (1.6
ft.)
Approximately 150 cm (4.9
ft.)
Approximately 50 cm (1.6
ft.)
The diagram shows the detec-
tion range of the sensors. Note
that the sensors cannot detect
obstacles that are extremely
close to the vehicle.
The range of the sensors may
change depending on the shape
of the object etc.

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CT200h_EE (OM76041E)
Sensor detection information
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 a sensor.
• A sensor is frozen.
• A 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.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• Towing eyelets are installed.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather
• A non-genuine Lexus suspension (lowered suspension etc.) is
installed.
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.
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

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CT200h_EE (OM76041E)
If the display flashes and a message is displayed
P. 5 6 5
Customization
Settings (e.g. buzzer volume) can be changed. (Customizable features P.
655)
CAUTION
Caution when using the Lexus parking assist-sensor
Observe the following precautions.
Failure 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).
Do not attach any accessories within the sensor range.
NOTICE
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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CT200h_EE (OM76041E)
PCS (Pre-Crash Safety system)

: 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 to occupants as well as vehicle damage.
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. 106)
However, when the VSC system is disabled, the system will not
operate 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 system determines that a collision is unavoidable, the brakes
are automatically applied to reduce the collision speed. Pre-crash
b ki b di bl d i h h b ki ff i h

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CT200h_EE (OM76041E)
Disabling pre-crash braking
Pre-crash braking disabled
Pre-crash braking enabled
The “PCS” warning light will
turn on when pre-crash brak-
ing is disabled.
Radar sensor
The radar sensor detects vehi-
cles or other obstacles on or
near the road ahead and deter-
mines whether a collision is
imminent based on the position,
speed, and heading of the obsta-
cles.