2012 Toyota Sienna Owners Manual - Page 348

2 -4 . U sing ot he r driving syst e m s I nt uit ive pa rk ing a ssist ∗ The distance from your vehicle to nearby obstacles when parallel parking or maneuvering into a garage is measured by the sensors and communicated via the multi-information display, the touch screen and a buzzer. Always check the surrounding area when using this system.