Lexus LS460 Owner's Manual page 302

302
4-5. Using the driving support systems
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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If the vehicle is skidding when VSC is not operating
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When an extreme change in vehicle height occurs
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When only part of your vehicle's front end collides with, or contacts, a vehicle or
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object in a frontal collision
When the radar sensor moves off position due to its surrounding area being sub-
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jected to a strong impact
If an obstacle in front of the vehicle is small
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When the system judges that the driver performed a collision avoidance operation
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via the accelerator pedal, brake pedal, or steering wheel
Automatic cancelation of the pre-collision system
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When a malfunction occurs due to sensor contamination, etc. that results in the sen-
sors being unable to detect obstacles, the pre-collision system will be automatically
disabled. In this case, the system will not activate even if there is a collision possibility.
When there is a malfunction in the system
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The pre-collision system warning light will flash and warning messages will be dis-
played. (→P. 510, 518)
LS460/LS460L_U (OM50G04U)