2013 Lexus CT200h Owner's Manual (in English)

2414-5. Using the driving support systems
4
Driving
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2424-5. Using the driving support systems
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WA R N I N G
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 appro-
priate, 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 deter-
mining the following distance between the driver’s own vehicle and a desig-
nated 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-visi-
bility 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 distance
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 situa-
tion.
Assisting the driver to operate the vehicle
The dynamic radar cruise control has no capability to prevent or avoid a colli-
sion 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 appropri-
ately 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.

2434-5. Using the driving support systems
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Driving
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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

2444-5. Using the driving support systems
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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.

245
4 4-5. Using the driving support systems
Driving
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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
1
2
3
Lexus parking assist-sensor switch

2464-5. Using the driving support systems
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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
1
2
3
1
2

2474-5. Using the driving support systems
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Driving
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*: if equipped

2484-5. Using the driving support systems
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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.)