Lexus 2013 IS250, Owner'S Manual

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4-5. Using the driving support systems
IS250_EE(OM53B11E)
CAUTION

When using the Lexus parking assist-sensor
Observe the following precautions.
Failing 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).

The sensors’ detection areas and reaction times are limited. When moving
forward or reversing, check the areas surrounding the vehicle (especially the
sides of the vehicle) for safety, and drive slowly, using the brake to control the
vehicle’s speed.

Do not install accessories within the sensors’ detection areas.
NOTICE

When using Lexus parking assist-sensor
In the following situations, the system may not function correctly due to a sen-
sor malfunction etc. Have the vehicle checked by any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.

The Lexus parking assist-sensor operation display flashes, and a beep sounds
when no obstacles are detected.

If the area around a sensor collides with something, or is subjected to strong
impact.

If the bumper or grille collides with something.

If the display shows continuously without beeping, except when the buzzer
mute switch has been turned on.

If a display error occurs, first check the sensor.
If the error occurs even when there is no ice, snow or mud on the sensor, it is
likely that the sensor is malfunctioning.

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.