Toyota SIENNA 2011 Quick Reference Manual page 360

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The pre-collision system is operational when
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Pre-collision seat belts (linked to the radar sensor):
• Vehicle speed is greater than about 3 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or oncom-
ing vehicle is greater than about 18 mph (30 km/h).
• The front occupants are wearing a seat belt.
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Pre-collision seat belts (linked to brake operation):
• Vehicle speed greater than about 18 mph (30 km/h).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
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Pre-collision brake assist:
• Vehicle speed is greater than about 18 mph (30 km/h).
• The speed at which your vehicle is approaching the obstacle or the
vehicle running ahead of you is greater than about 18 mph (30 km/h).
• The brake pedal is depressed.
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Pre-collision braking:
• The pre-collision braking off button is not pressed.
• Vehicle speed is greater than about 9 mph (15 km/h).
• The speed at which your vehicle is approaching the obstacle or the
vehicle running ahead of you is greater than about 9 mph (15 km/h).
I n f o r ma t i o n P r o v i d e d b y :
2-4. Using other driving systems
2
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