Lexus LS 600h L 2015 Owner's Manual page 299

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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 sys-
tem determines that a collision is unavoidable, the brakes are automati-
cally applied to help avoid a collision or to reduce the collision speed.
When the vehicle is being stopped by pre-collision braking, the brake
will be engaged for a maximum of 2 seconds and then released auto-
matically. This pre-collision braking can be canceled by depressing the
accelerator pedal or brake pedal.
Pre-collision braking can be disabled using the pre-collision braking off switch.
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Suspension control
When there is a high possibility of a frontal collision, the operation of
suspension control helps prevent the front of the vehicle from dropping
when the brakes are applied suddenly.
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Steering gear control (VGRS) (vehicles with camera sensors)
When the system determines that a collision is unavoidable, the steer-
ing gear ratio is changed to help improve the response to steering
input.
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Driver monitor system (if equipped)
When the system determines that there is a possibility of a collision, and
either the driver is not facing forward or the driver' s eyes are closed,
pre-collision warnings are given in advance to warn the driver. If the
system determines that the conditions to operate pre-collision alert
braking have been met even when the possibility of a collision increases
further, pre-collision alert braking will operate.
Pre-collision alert braking can be disabled using the pre-collision braking off
switch.
LS600hL_U(OM50E41U)
4-5. Using the driving support systems
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