Toyota Sienna 2010 Owner's Manual page 208

2-4. Using other driving systems
The indicator and buzzer system
Corner sensor operation and distance to an obstacle
■
The system operates when the vehicle approaches within following
distance to an obstacle. The indicator flashes and the buzzer
sounds when the system is operating.
Front (if equipped)
Distance to an obstacle
Approximately 2.0 - 1.3 (60 - 40)
Approximately 1.3 - 0.8 (40 - 25)
Approximately 0.8 or less (25 or less)
Rear
Distance to an obstacle
Approximately 2.8 - 1.7 (85 - 52)
Approximately 1.7 - 0.8 (52 - 25)
Approximately 0.8 or less (25 or less)
210
Indicator and buzzer
Intermittent
Fast intermittent
Continuously
Indicator and buzzer
Intermittent
Fast intermittent
Continuously
ft. (cm)
ft. (cm)