2010 Lexus GS350 light

158
2-3. Operating the lights and windshield wipers
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
AFS (Adaptive Front lighting System) (if equipped)
AFS improves visibility at intersections and on curves by automatically
adjusting the level of the headlights according to vehicle speed and the
degree of the tire angle that are controlled by steering input.
Operates at speeds of 6 mph (10 km/h) or higher.
■Deactivating AFS
Press the switch to turn it off.
The indicator turns on when
the AFS is deactivated.
■Daytime running light system
●To make your vehicle more visible to other drivers, the headlights turn on auto-
matically (at a reduced intensity) whenever the engine is started and the parking
brake is released. Daytime running lights are not designed for use at night.
●Compared to turning on the headlights, the daytime running light system offers
greater durability and consumes less electricity, so it can help improve fuel
economy.

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2-3. Operating the lights and windshield wipers
2
When driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■Headlight control sensor
■Automatic light off system
The headlights and tail lights turn off 30 seconds after all doors are closed if the
“ENGINE START STOP” switch has been switched to ACCESSORY mode or
turned OFF while the headlights are turned on. (The lights turn off immediately if
the button on the key is pressed after all doors are locked.)
To turn the lights on again, switch to IGNITION ON mode, or turn the light switch
off once and then back to the
or position.
■Automatic headlight leveling system
The level of the headlights is automatically adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■If the indicator flashes...
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed. 
(Customizable features P. 6 2 1 )
NOTICE
■To prevent 12 volt battery discharge
Do not leave the lights on longer than necessary when the engine is off.
The sensor may not function properly if an
object is placed on the sensor, or anything
that blocks the sensor is affixed to the wind-
shield. 
Doing so interferes with the sensor detecting
the level of ambient light and may cause the
automatic headlight system to malfunction.

160
2-3. Operating the lights and windshield wipers
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Fog light switch
The fog lights improve visibility in difficult driving conditions, such as in rain
or fog. They can be turned on only when the headlights are on low beam.
OFF
ON

161
2-3. Operating the lights and windshield wipers
2
When driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Windshield wipers and washer
Intermittent wiper with interval adjuster
Wiper intervals can be adjusted for intermittent operation (when
is selected).
Off
Intermittent wind-
shield wiper operation
Low speed windshield
wiper operation
High speed wind-
shield wiper operation
Temporary operation
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency

162
2-3. Operating the lights and windshield wipers
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.
Rain-sensing windshield wipers
With selected, the wipers will operate automatically when the
sensor detects falling rain. The system automatically adjusts wiper
timing in accordance with rain volume and vehicle speed.
Off
Rain-sensing wiper
operation
Low speed wiper
operation
High speed wiper
operation
Temporary operation

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2-3. Operating the lights and windshield wipers
2
When driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
Sensor sensitivity (high)
Sensor sensitivity (low)
Washer/wiper dual operation
Wipers will automatically oper-
ate a couple of times after the
washer squirts.

164
2-3. Operating the lights and windshield wipers
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■The windshield wiper and washer can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Dripping prevention wiper sweep
After washing and wiping operation several times, the wipers operate one more
time after a short delay to prevent dripping.
However, the last sweep will not happen if the vehicle is traveling above 106 mph
(170 km/h).
■Effects of vehicle speed on wiper operation
Vehicle speed affects the following even when the wipers are not “AUTO” mode.
●Intermittent wiper interval ( mode)
●Wiper operation when the washer is being used (delay until drip prevention
wiper sweep occurs)
With selected, wiper operation will be switched from low speed to intermit-
tent wiper operation only when the vehicle is stationary.
■Rain drop sensor (vehicles equipped with rain-sensing windshield wipers)
●If the wiper switch is turned to the “AUTO” position while the “ENGINE START
STOP” switch is in IGNITION ON mode, the wipers will operate once to show
that “AUTO” mode is activated.
●If the temperature of the raindrop sensor is 167°F (75°C) or higher, or 14°F
(-10°C) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than “AUTO”.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not
operate properly when sunlight from the
rising or setting of the sun intermittently
strikes the windshield, or if bugs etc. are
present on the windshield.

165
2-3. Operating the lights and windshield wipers
2
When driving
GS_G_U (OM30C80U)
June 29, 2011 10:30 am
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the wind-
shield washer fluid reservoir.
■Customization that can be configured at Lexus dealer
Settings (e.g. drip prevention function) can be changed. 
(Customizable features P. 6 2 2 )
CAUTION
■Caution regarding the use of windshield wipers in “AUTO” mode
The windshield wipers may operate unexpectedly if the sensor is touched or the
windshield is subject to vibration in “AUTO” mode. Take care that your fingers or
anything else do not become caught in the windshield wipers.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you
and held continually.