2010 Lexus HS250h Basic Information Before Operation / LEXUS 2010 HS250H OWNERS MANUAL (OM75006U)

185
2-3. Operating the lights and windshield wipers
2
When driving
Turning on the high beam headlights
With the headlights on, push the
lever away from you to turn on
the high beam

s.
When the light switch is in
position, the Automatic High Beam
sy
stem will be activated. ( P. 1 8 8 )
Pull the lever toward you to the
ce
nter position to turn the high
beams off.
Pull the lever toward you and
release it to flash the high beams
once.
You can flash the high beams with
the headlights on or off.
AFS (Adaptive Front-lighting System) (if equipped)
AFS (Adaptive Front-lighting System) secures excellent visibility at inter-
sections and on curves by automatically adjusting the dir
ection of the
light axis of the headlights according to vehicle speed and the degree of
the tire’s angle as controlled by steering input.
AFS operates at speeds of 6 mph (10 km/h) or higher.
■ Deactivating AFS
Press the menu switch.
The multi-information display will
change modes to electronic fea-
ture control mode.
Press the “ENTER” switch
upwards or downwards until
AF

S appears.

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2-3. Operating the lights and windshield wipers
Press the “ENTER” switch to
change to OFF. 
The “AFS OFF” indicator will come
on.
Each pressing of the switch turns
AFS on and off.
Press the menu switch to change to
the norma
l display.
■Daytime running light system (if equipped)
To make your vehicle more visible to othe r dr
ivers, the headlights turn on automati-
cally (at a reduced intensity) whenever the hy
brid system is started and the parking
brake is released. Daytime running ligh ts are not designed for use at night.
For the U.S.A.: Daytime running lights can be turned off by operating the switch.
■Headlight control sensor
■Automatic light off system
●When the headlights come on: The headligh ts and tail lights turn off 30 seconds
after a door is opened and closed if the “POWER” switch is turned to ACCES -
SORY mode or turned off. (The lights turn off immediately if on the key is
pressed after all the doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the
“POWER” switch is turned to ACCESSORY mode or turned off and the
driver’s door is opened.
To turn the lights on again, turn the “POWER” s
witch to ON mode, or turn the light
switch off once and then back to or .
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.

187
2-3. Operating the lights and windshield wipers
2
When driving
■Automatic headlight leveling system (if equipped)
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 “AFS OFF” indicator flashes (if equipped)
It may indicate a malfunction in th e system. Contact your Lexus dealer.
■Customization
Settings (e.g. light sensor sensitivity) can be changed. 
(Customizable features  P. 5 7 2 )
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

188
2-3. Operating the lights and windshield wipers
Automatic High Beam
: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to assess the
brightness of streetlights, the lights of oncoming and preceding vehicles,
etc., and automatically turns high beam on or off as necessary.
■Activating the Automatic High Beam system
Turn the headlight switch to the position.
Push the lever away from you.
The Automatic High Beam indi -
cator will come on when the
headlights ar
e turned on auto -
matically to indicate that the sys -
tem is active.

189
2-3. Operating the lights and windshield wipers
2
When driving
■Turning the high beam on/off manually
Switching to low beam
Pull the lever to original posi-
tion.
Switching to high beam Turn the light switch to
position.

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2-3. Operating the lights and windshield wipers
■The Automatic High Beam can be operated when
The “POWER” switch is ON mode.
■Camera sensor detection information
●High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve.
• When the vehicle is cut in front of by another.
●High beam may be turned off if an oncoming vehicle that is using fog lights with-
out using the headlights is detected.
●House lights, street lights, red traffic sign als, and illuminated billboards or signs
may cause the high beam to turn off.
■ High beam automatic turning on or off conditions
When all of the following conditio ns are fulfilled, high beam will be
automatically turned on (after approximately 1 second):
● V
ehicle speed is above approximately 20 mph (32 km/h).
●The ar
ea ahead of the vehicle is dark.
●Ther
e are no oncoming or preced ing vehicles with headlights or
tail lights turned on.
If any of the following conditions ar
e fulfilled, high beam will be auto-
matically turned off:
● V
ehicle speed drops below approximately 20 mph (32 km/h).
●The ar
ea ahead of the vehicle is not dark.
●Oncoming or pr
eceding vehicles have headlights or tail lights
turned on.

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2-3. Operating the lights and windshield wipers
2
When driving
●The following factors may affect the amount of time taken to turn high beam on
or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and pre-
ceding vehicles
• Road conditions (wetness, ice, snow etc.)
• The number of passengers and amount of baggage
●High beam may be turned on or off when unexpected by the driver.
●In the situations below, the system may not be able to correctly detect the sur-
rounding brightness levels, and may flash or expose nearby pedestrians to the
high beam. Therefore, you should consider turning the high beams on or off
manually rather than relying on the Automatic High Beam System.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• Surrounding brightness leve ls are equal to those of headlights, tail lights or
fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are chang- ing color, or have are not aimed properly.
• When driving through an area of inte rmittently changing brightness and
darkness
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel tracks etc.)
• When frequently and repeatedly taking curves or driving on a winding road
• There is a highly reflective object ahead of the vehicle, such as a sign or a mir- ror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or tilting, due to a flat tire, a trailer being towed etc.
• The Automatic High Beam indicator is flashing.
• The high beam and low beam are repe atedly being switched between in an
abnormal manner.
• The driver believes that the high beam may be causing problems or distress to
other drivers or pedestrians nearby.

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2-3. Operating the lights and windshield wipers
■If the Automatic High Beam indicator flashes
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Temporary lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
To lower the sensitivity, push and hold the “AUTO” button on the inside rear view
mirror for 15 to 20 seconds, and release. The indicator light on the inside rear view
mirror will flash to indicate that the sensitivity has been lowered.
When the “POWER” switch is turned off, th e sensitivity will be returned to its nor-
mal level.
■Customization that can be conf igured at your Lexus dealer
The Automatic High Beam can be turned off.