Toyota Prius 2011, Owner'S Manual

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257
2-4. Using other driving systems
2
When
d
riving
PRIUS_U (OM47685U) DVD
Pre-Collision System
∗
∗
: If equipped
When the radar sensor detects possibility of a frontal collision, the
pre-collision system such as the brakes and seat belts are auto-
matically engaged to lessen impact and injuries to occupants as
well as vehicle damage.
n
Pre-collision seat belts
If the pre-collision sensor detects that a collision is unavoidable,
the pre-collision system will retract the seat belt before the colli-
sion occurs.
The same will happen if the driver makes an emergency braking
or loses control of the vehicle. (
→
P. 86)
However, when the VSC is disabled, the system will not operate
in the event of skidding.
n 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.
n
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 reduce the collision
speed. Pre-collision braking can be disabled using the pre-colli-
sion braking off switch.