The Pre-Collision System Is Operational When; Conditions That May Trigger The System Even If There Is No Possibility Of A Collision - Lexus NX200t Owner's Manual

The pre-collision system is operational when

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The pre-collision system is on (P. 304) and the following conditions are met:
Pre-collision warning:
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• Vehicle speed is greater than about 10 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 7 mph (10 km/h).
Pre-collision brake assist:
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• The VSC is not turned off.
• Vehicle speed is greater than about 19 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 19 mph (30 km/h).
• The brake pedal is depressed.
Pre-collision braking:
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• The VSC is not turned off.
• Vehicle speed is greater than about 10 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 7 mph (10 km/h).
Suspension control (vehicles with Adaptive Variable Suspension system):
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• Vehicle speed is greater than about 4 mph (5 km/h).
• The speed at which your vehicle is approaching the obstacle or the vehicle running
ahead of you is greater than about 19 mph (30 km/h).

Conditions that may trigger the system even if there is no possibility of a collision

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If the following obstructs the front of the sensor, the system judges that a collision may be
possible and operates.
When passing by a vehicle while making left or right turns or passing a vehicle in an
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opposite lane.
When the vehicle rapidly approaches an object in front of it (such as another vehicle,
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toll gate, etc.)
When climbing a steep hill, etc., and there are structures in the upper region of the road
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(billboards, low ceilings, street lamps, etc.)
When driving through narrow passages or places with low ceilings (bridges, tunnels,
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overhead passes, etc.)
When driving on an uneven road surface
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When metal objects are on the road surface causing level differences or protrusions in
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the road
When an extreme change in vehicle height occurs
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When the radar sensor moves off position due to its surrounding area being subjected
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to a strong impact.
When there is an obstacle on the side of an entrance of a curb for road (guardrails, etc.)
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When your vehicle is tilted upwards (due to towing a trailer or during emergency tow-
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ing, heavy loads in the luggage compartment, etc.).
When the system is activated in the situations described above, there is also a possibility
that the brakes will be applied with a force greater than normal.
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4-5. Using the driving support systems
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