TOYOTA 2010 Prius - Manual (Page 275)

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2-4. Using other driving systems
2
Wh
en drivin
g
Pre-Collision System
∗
∗
: If equipped
Safety systems such as the brakes and seat belts are automati-
cally engaged to lessen impact and injuries to occupants as well as
vehicle damage when the radar sensor detects an unavoidable
frontal collision.
■
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)
■
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 reduce the collision
speed. Pre-collision braking can be disabled using the pre-colli-
sion braking off button.