TOYOTA 2011 Sienna - Manual (Page 358)

307
2-4. Using other driving systems
2
Wh
en drivin
g
PCS (Pre-Collision System)
∗
∗
: If equipped
When the radar sensor detects a possibility of a frontal collision,
the systems 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 seat belts only)
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 emer-
gency braking or loses control of the vehicle. (
→P. 125)
However, when the VSC system is disabled, the system will not
operate in the event of skidding.
■ Pre-collision brake assist
When there is a 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.