Pre-Collision System - Lexus LS 600h L 2012 Owner's Manual

2-4. Using other driving systems

Pre-Collision System

When the radar sensor detects possibility of a frontal collision, the pre-col-
lision system such as the brakes and seat belts are automatically engaged
to lessen impact and injuries to occupants as well as vehicle damage.
■ Pre-collision seat belts (front seats)
If the pre-collision sensor detects that a collision is unavoidable, the pre-
collision 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-collision 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.
■ Pre-collision 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 help reduce the collision speed. Pre-collision braking function
can be turned on and off using the pre-collision braking off switch.
(→P. 316)
■ Suspension control
When there is a high possibility of a frontal collision, the operation of sus-
pension control helps prevent the front of the vehicle from dropping when
the brakes are applied suddenly.
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2
∗
: If equipped
315