Lexus GS 350 Owner's Manual page 249

248
4-3. Operating the lights and wipers
Conditions in which the light distribution control of the headlights changes automati-
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cally
When all of the following conditions are met, the high beams will be turned on automat-
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ically and the system will operate:
• The vehicle speed is approximately 15 km/h (10 mph) or more.*
• The area ahead of the vehicle is dark.
*
: When the vehicle speed is approximately 30 km/h (19 mph) or more, the area in the
direction that the vehicle is turning will be illuminated more brightly than other areas
while driving on a curve.
When all of the following conditions are met, the variable high beams will turn on and
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the distance that the low beams are projected will be adjusted automatically, depending
on the location of vehicles ahead:
• The vehicle speed is approximately 15 km/h (10 mph) or more.
• The area ahead of the vehicle is dark.
• There are vehicles ahead with headlights or tail lights turned on.
If any of the following conditions is met, the high beams or variable high beams will be
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changed to the low beams automatically:
• The vehicle speed is below approximately 15 km/h (10 mph).
• The area ahead of the vehicle is not dark.
• There are many vehicles ahead.
• Vehicles ahead are moving quickly and the high beams may blind the drivers of the
other vehicles.
Camera sensor detection information
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The high beams may not be automatically changed to the variable high beams in the
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following situations:
• When vehicles ahead suddenly appear from a curve
• When the vehicle is cut in front of by another vehicle
• When vehicles ahead are hidden from sight due to repeated curves, road dividers or
roadside trees
• When vehicles ahead appear from the faraway lane on wide road
• When vehicles ahead have no lights
The high beams may be changed to the variable high beams if a vehicle ahead that is
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using fog lights without its headlights turned on is detected.
House lights, street lights, traffic signals, and illuminated billboards or signs may cause
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the high beams to change to the variable high beams, cause the high beams not to
change to the variable high beams, or change the area that is not illuminated.
The following factors may affect the amount of time taken to turn the high beam on or
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off, or the speed by which the areas not illuminated change:
• The brightness of headlights, fog lights, and tail lights of vehicles ahead
• The movement and direction of vehicles ahead
• When a vehicle ahead only has operational lights on one side
• When a vehicle ahead is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface etc.)
• The number of passengers and amount of luggage
The light distribution control of the headlights may change unexpectedly.
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Bicycles or similar objects may not be detected.
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GS350_300_GS F_OM_OM30J17E_(GE)