Pre-Crash Safety System - Lexus RX450H Manual

Pre-Crash Safety system

When the radar sensor detects the possibility of a frontal collision, the
pre-crash safety system such as the brakes and seat belts are automati-
cally engaged to lessen impact as well as vehicle damage.

Pre-crash seat belts (front seat belts only)
If the pre-crash sensor detects that a collision is unavoidable, the
pre-crash safety system will retract the seat belt before the collision
occurs.
The same will happen if the driver makes an emergency braking or
loses control of the vehicle. (P. 111)
However, the system will not operate in the event of skidding when
the VSC system is disabled.

Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the brake
pedal is depressed. The system may not warn the driver using a
warning light, warning display and buzzer when the system detects
and judges braking operations.

Pre-crash braking
When there is a high possibility of a frontal collision, the system
warns the driver using a warning light, warning display and buzzer.
If the system determines that a collision is unavoidable, the brakes
are automatically applied to reduce the collision speed. Pre-crash
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RX450h_EE

b di bl d i th
2-4. Using other driving systems
h b ki ff it h
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: If equipped
2
301