Conditions That May Trigger The Pre-Collision System (No Danger); Bstacles Not Detected; Situations In Which Pre-Collision System Does Not Function Properly - Lexus GS350 Owner's Manual

Conditions that may trigger the system even if there is no danger of a 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
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When a grade separation/interchange, sign, billboard, or other structure appears
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to be directly in the vehicle' s line of travel
When climbing a steep hill causes an overhead billboard or other metallic structure
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to appear directly in the vehicle' s line of travel
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.
Obstacles not detected
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The sensor cannot detect plastic obstacles such as traffic cones. There may also be
occasions when the sensor cannot detect pedestrians, animals, bicycles, motorcy-
cles, trees, or snowdrifts.
Situations in which the pre-collision system does not function properly
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The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
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If a vehicle suddenly moves in front of your vehicle, such as at an intersection
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If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
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In inclement weather such as heavy rain, fog, snow or sand storms
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When your vehicle is skidding
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When your vehicle is steeply inclined
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When the radar sensor moves off position due to its surrounding area being sub-
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jected to a strong impact
GS350_OM_OM30D41U_(U)
4-5. Using the driving support systems
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