TOYOTA 2011 Sienna - Manual (Page 341)

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2-4. Using other driving systems
The distance display and buzzer
When a sensor detects an obstacle, the direction of and the approxi-
mate distance to the obstacle are displayed and the buzzer sounds.
■ Corner sensor operation and distance to an obstacle
The system operates when the vehicle approaches within the fol-
lowing distances to an obstacle. The indicator flashes and the
buzzer sounds when the system is operating.
Front (if equipped)
Rear
Approximate distance to obstacle Indicator and buzzer / Color
2.0 to 1.2 ft. (60 to 37.5 cm) Intermittent / yellow
1.2 to 0.8 ft. (37.5 to 25 cm) Fast intermittent / yellow
0.8 ft. (25 cm) or less Continuous / red
Approximate distance to obstacle Indicator and buzzer / Color
2.8 to 1.2 ft. (85 to 37.5 cm) Intermittent / yellow
1.2 to 0.8 ft. (37.5 to 25 cm) Fast intermittent / yellow
0.8 ft. (25 cm) or less Continuous / red