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When driving
CT200h_EE (OM76041E)
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CAUTION
Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes etc.
Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and
a designated vehicle traveling ahead. It is not a mechanism that allows
careless or inattentive driving, and it is not a system that can assist the
driver in low-visibility conditions. It is still necessary for driver to pay
close attention to the vehicle’s surroundings.
Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is appropriate or not. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
Assisting the driver to operate the vehicle
The dynamic radar cruise control has no capability to prevent or avoid a
collision with a vehicle traveling ahead. Therefore, if there is ever any
danger, the driver must take immediate and direct control of the vehicle
and act appropriately in order to ensure the safety of all involved.
To avoid inadvertent cruise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.
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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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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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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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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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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.