2010 Lexus RX 350 Owners Manual - Page 244

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2-4. Using other driving systems

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The pre-collision system is operational when

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Pre-collision seat belt 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 oncoming

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 in the event of sudden braking or skidding

°

Vehicle speed is 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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Conditions that may trigger the system even if there is no danger of collision

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When there is an object by the roadside at the entrance to a curve

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When passing an oncoming vehicle on a curve

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When driving over a narrow iron bridge

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When there is a metal object on the road surface

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When driving on an uneven road surface

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When passing an oncoming vehicle on a left-turn

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When your vehicle rapidly closes on the vehicle in front

When the system is activated in the situations described above, there is also a possi-

bility that the seat belts will retract quickly and the brakes will be applied with a force

greater than normal. When the seat belt is locked in the retracted position, stop the

vehicle in a safe place, release the seat belt and refasten it.