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274
4-5. Using the driving support systems
PCS (Pre-Collision System)
(vehicles with Lexus Safety
System + A)
The pre-collision system uses a
front radar sensor and front camera
to detect vehicles and pedestri-
ans/bicyclists in front of your vehi-
cle and front side radar sensors to
detect vehicles approaching from
the front left or right side. When the
system determines that the possi-
bility of a frontal collision with a
vehicle or pedestrian/bicyclist is
high, a warning operates to urge
the driver to take evasive action
and the potential brake pressure is
increased to help the driver avoid
the collision. If the system deter-
mines that the possibility of a frontal
collision with a vehicle or pedes-
trian/bicyclist is extremely high, the
brakes are automatically applied to
help avoid the collision or help
reduce the impact of the collision.
The pre-collision system can be disa-
bled/enabled and the warning timing
can be changed. (P.278)
System functions
Pedestrian alert
■
When the system determines that
there is a possibility of a frontal collision
with a stationary or moving pedestrian
in front of your vehicle, a message will
be displayed on the head-up display to
warn the driver.
LS500h_OM_General_OM50J66E
Pre-collision warning
■
When the system determines that the
possibility of a frontal collision is high, a
buzzer will sound and a warning mes-
sage will be displayed on the
multi-information display to urge the
driver to take evasive action.
Pre-collision brake assist
■
When the system determines that the
possibility of a frontal collision is high,
the system applies greater braking
force in relation to how strongly the
brake pedal is depressed.
Pre-collision braking
■
If the system determines that the possi-
bility of a frontal collision is extremely
high, the brakes are automatically
applied to help avoid the collision or
reduce the impact of the collision.
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