2012 Toyota Sienna Owners Manual - Page 370
2012 Toyota Sienna Manual
Page 370 highlights
2 -4 . U sing ot he r driving syst e m s PCS (Pre -Collision Syst e m ) ∗ When the radar sensor detects that a frontal collision is highly likely or even unavoidable, the systems such as the brakes and seat belts are automatically engaged to lessen impact to occupants as well as vehicle damage.