2013 Lexus CT200h sensor

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Driving
CT200h_OM_OM76102E_(EE)
Pulling the lever toward you can-
cels the cruise control.
The speed setting is also canceled
when the brakes are applied.
Pushing the lever up resumes the
cruise control and returns vehicle
speed to the set speed.
Resuming is available when the
vehicle speed is more than approxi-
mately 40 km/h (25 mph).
This mode employs a radar sensor to detect the presence of vehicles up to
approximately 120 m (400 ft.) ahead, determines the current vehicle-to-
vehicle following distance, and operates to maintain a suitable following
distance from the vehicle ahead.
Note that vehicle-to-vehicle distance will close in when traveling on long
downhill slopes.
Canceling and resuming the speed control
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Driving in vehicle-to-vehicle distance control mode

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CT200h_OM_OM76102E_(EE)
Automatic cancelation of vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the fol-
lowing situations:
Actual vehicle speed falls below approximately 40 km/h (25 mph).
VSC is activated.
The sensor cannot operate correctly because it is covered in some way.
The windshield wipers are operating at high speed (when the wiper switch is set
to the “AUTO” mode or the high speed wiper operation position).
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situa-
tions:
Actual vehicle speed is more than approximately 16 km/h (10 mph) below the
set vehicle speed.
At this time, the memorized set speed is not retained.
Vehicle speed falls below approximately 40 km/h (25 mph).
VSC is activated.
Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-vehi-
cle distance control operates properly. (Some obstructions, such as snow, ice and
plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to
inform the driver of the need for caution while driving. (P. 575) Grille cover
Radar sensor
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CT200h_OM_OM76102E_(EE)
WA R N I N G
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
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 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. 237) will not be activated, and a fatal or serious acci-
dent 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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WA R N I N G
Conditions under which the vehicle-to-vehicle distance control may not func-
tion correctly
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 acci-
dent may result:
When water or snow thrown up by the surrounding vehicles hinders the func-
tioning of the sensor
When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage 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 effec-
tively.
Otherwise, the system may not function correctly and could result in an acci-
dent.
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 dam-
age them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction. If
the sensor or surrounding area is subject to a strong impact, always have the
area inspected and adjusted by 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 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_OM76102E_(EE)
Lexus parking assist-sensor
Front corner sensors
Rear corner sensors
Rear center sensors
Turns the Lexus parking assist-sen-
sor on/off
When on, the indicator light comes
on to inform the driver that the sys-
tem 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 communi-
cated via the displays and a buzzer. Always check the surrounding area
when using this system.
Types of sensors
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Lexus parking assist-sensor switch

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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)
Lexus parking assist-sensor
display
When the rear view monitor sys-
tem
* or Lexus parking assist
monitor
* is not displayed.
A graphic is automatically dis-
played when an obstacle is
detected. The screen can be set so
that the graphic is not displayed.
(P. 250)
: Select to mute the buzzer
sounds.
Insert display
When the rear view monitor sys-
tem* or Lexus parking assist
monitor
* is displayed.
A simplified image is displayed
on the right upper corner of the
navigation system screen when an
obstacle is detected.
Display
Vehicles with monochrome dis-
playVehicles with color display
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Distance display
Sensors that detect an obstacle will illuminate continuously or blink.
*1: The images may differ from that shown in the illustrations. (P. 246)
*2: Multi-information display
*3: Lexus Display Audio or navigation system screen
Sensor detection display, obstacle distance
Display*1Insert display
Approximate distance to obstacle
Front and rear corner
sensorRear center sensor
(continuous)(blinking
slowly)
150 cm (4.9 ft.) to
60 cm (2.0 ft.)
(continuous)(blinking)
Front corner sensor:
50 cm (1.6 ft.) to 40
cm (1.3 ft.)
Rear corner sensor:
60 cm (2.0 ft.) to 45
cm (1.5 ft.)
60 cm (2.0 ft.) to
45 cm (1.5 ft.)
(continuous)(blinking rap-
idly)
Front corner sensor:
40 cm (1.3 ft.) to 30
cm (1.0 ft.)
Rear corner sensor:
45 cm (1.5 ft.) to 30
cm (1.0 ft.)
45 cm (1.5 ft.) to
35 cm (1.2 ft.)
(blinking*2 or
continuous
*3)
(continuous)
Less than
30 cm (1.0 ft.)Less than
35 cm (1.2 ft.)

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CT200h_OM_OM76102E_(EE)
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 following distance of the obsta-
cle, the buzzer sounds continuously.
• Front corner sensors: Approximately 30 cm (1.0 ft.)
• Rear corner sensors: Approximately 30 cm (1.0 ft.)
• Rear center sensors: Approximately 35 cm (1.2 ft.)
When 2 or more obstacles are detected simultaneously, the buzzer
system responds to the nearest obstacle. If one or both come within
the above distances, the beep will repeat a long tone, followed by
fast beeps.
Approximately 50 cm (1.6 ft.)
Approximately 60 cm (2.0 ft.)
Approximately 150 cm (4.9 ft.)
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
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