2015 Lexus CT200h sensor

CT200h_OM_OM76174U_(U)
1974-5. Using the driving support systems
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Driving
WA R N I N G
■To avoid inadvertent cruise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.
■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 accident result-
ing 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 or 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 sensors from
functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
●When an approach warning buzzer is heard often
●During 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. 193) 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
■Conditions under which the ve hicle-to-vehicle distance control may not function cor-
rectly
Apply the brakes as necessary in the following conditions as the radar sensor 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 com-
partment 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

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CT200h_OM_OM76174U_(U)4-5. Using the driving support systems
WA R N I N G
■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 positi
on, the system may malfunction. If the sen-
sor or surrounding area is subject to a strong impact, always have the area inspected
and adjusted by a Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to th e sensor, grille cover or surrounding area.
●Do not modify or paint the sensor and grille cover.
●Do not replace them with non-genuine parts.

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CT200h_OM_OM76174U_(U)4-5. Using the driving support systems
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Driving
Intuitive parking assist∗
Front corner sensors
Rear corner sensors
Rear center sensors
Turns the intuitive parking assist on/off
When on, the indicat or light comes on
to inform the driver that the system is
operational.
∗: 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 displays and a buzzer. Always chec k the surrounding area when using this
system.
Types of sensors
1
2
3
Intuitive parking assist switch

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CT200h_OM_OM76174U_(U)4-5. Using the driving support systems
When the sensors detect an obstacle, the following displays inform the driver of
the position and distance to the obstacle.
■Multi-information display
Front corner sensor operation
Rear corner sensor operation
Rear center sensor operation
■Lexus Display Audio or navigation system screen (if equipped)Intuitive parking assist display
When the Lexus parking assist moni-
tor
* is not displayed.
A graphic is automatically displayed
when an obstacle is detected. The
screen can be set so that the graphic
is not displayed. ( →P. 2 0 3 )
: Select to mute the buzzer
sounds.
Insert display
When the Lexus parking assist moni-
tor* is displayed.
A simplified image is displayed on
the right upper corner of the naviga-
tion system screen when an obstacle
is detected.
*: if equipped
Display
1
2
3
1
2

CT200h_OM_OM76174U_(U)
2014-5. Using the driving support systems
4
Driving
■Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
*1: The images may differ from that shown in the illustrations. (→P. 200)
*2: Multi-information display
*3: Lexus Display Audio or navigation system screen
Sensor detection display, obstacle distance
Display*1Insert
displayApproximate distance to obstacle
Front and rear corner sensorRear center sensor
(continuous)(blinking slowly)
4.9 ft. (150 cm) to
2.0 ft. (60 cm)
(continuous)(blinking)
Front corner sensor:
1.6 ft. (50 cm) to
1.3 ft. (40 cm)
Rear corner sensor:
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
2.0 ft. (60 cm) to
1.5 ft. (45 cm)
(continuous)(blinking rapidly)
Front corner sensor:
1.3 ft. (40 cm) to
1.0 ft. (30 cm)
Rear corner sensor:
1.5 ft. (45 cm) to
1.0 ft. (30 cm)
1.5 ft. (45 cm) to
1.2 ft. (35 cm)
(blinking*2 or
continuous
*3)(continuous)
Less than
1.0 ft. (30 cm)Less than
1.2 ft. (35 cm)

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CT200h_OM_OM76174U_(U)4-5. Using the driving support systems
■Buzzer operation and distance to an obstacle
A buzzer sounds when the sensors are operating.
●The buzzer sounds faster as the vehicle approaches an obstacle.
When the vehicle comes within the foll
owing distance of the obstacle, the
buzzer sounds continuously. • Front corner sensors: Approximately 1.0 ft. (30 cm)
• Rear corner sensors: Approximately 1.0 ft. (30 cm)
• Rear center sensors: Approximately 1.2 ft. (35 cm)
●When 2 or more obstacles are detected simultaneously, the buzzer system
responds to the nearest obstacle. If on e or both come within the above dis-
tances, the beep will repeat a long tone, followed by fast beeps.
Approximately 1.6 ft. (50 cm)
Approximately 2.0 ft. (60 cm)
Approximately 4.9 ft. (150 cm)
The diagram shows the detection 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.
Detection range of the sensors
1
2
3

CT200h_OM_OM76174U_(U)
2034-5. Using the driving support systems
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Driving
You can change the buzzer sounds volume and the screen operating conditions.
XLexus 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.
XNavigation 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 intuitive parking assist display.
Rear center sensor display and tone indication can be set.
■The intuitive parking assist 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 6 mph (10 km/h).(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.
Setting up intuitive parking assist (vehicles with a Lexus Display Audio
or navigation system)
1
2
3
1
2
3
XLexus Display Audio screenXNavigation system screen
1
2
3

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CT200h_OM_OM76174U_(U)4-5. Using the driving support systems
■Intuitive parking assist display
When an obstacle is detected while the Lexus
parking assist monitor is in use, the warn-
ing 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 surround ing 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 prob-
lem.)
• The sensor is frozen. (Thawing th e 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 co nsiderably 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.
●The shape of the obstacle may prevent a sensor from detecting it. Pay particular atten-
tion 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 vehi-
cle
●The following situations may occur during use.
• Depending on the shape of the obstacle and other factors, the detection distance may shorten, or detect ion may be impossible.
• Obstacles may not be detected if they are too close to the sensor.
• There will be a short delay between obst acle detection and display. Even at slow
speeds, there is a possibility that the obstacl e will come within the sensor’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.