Lexus GS450h Owner's Manual page 290

290
4-5. Using the driving support systems
The vehicle is driven on a road which tilts left or right, or a winding road.
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The vehicle is driven on an unpaved or rough road.
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The vehicle is driven around a sharp curve.
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The traffic lane is excessively narrow or wide.
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The vehicle is extremely tilted due to carrying heavy luggage or having improper tire
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pressure.
The distance to the preceding vehicle is extremely short.
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The vehicle is moving up and down a large amount due to road conditions during driv-
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ing (poor roads or road seams).
The headlight lenses are dirty and emit a faint amount of light at night, or the beam axis
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has deviated.
The vehicle is struck by a crosswind.
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The vehicle has just changed lanes or crossed an intersection.
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Snow tires, etc. are equipped.
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Warning message
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Warning messages are used to indicate a system malfunction or to inform the driver of
the need for caution while driving. (P. 466)
Customization
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The following settings can be changed.
Lane departure alert function
Steering assist function
Vehicle sway warning function
Lane centering function
For how to change settings, refer to P. 561.
GS450h_300h_OM_OM30F92E_(EE)
Function Setting details
Adjust alert sensitivity
Adjust alert type
Turn steering wheel assistance on and off
Turn function on and off
Adjust alert sensitivity
Turn function on and off