2014 Lexus ES300h sensor

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4-3. Operating the lights and wipers
■Daytime running light system
To make your vehicle more visible to other drivers, the parking lights turn on auto-
matically (at an increased intensity) whenever the engine is started
and the parking brake is released. Daytime running lights 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 light switch is in , or : The headlights and tail lights turn off 30
seconds after the “START STOP ENGINE” <“POWER”> switch is turned to
ACCESSORY mode or turned off and a door is opened and all of the doors and
trunk are closed. (The lights turn off immediately if on the key is pressed twice
after all the doors are closed.)
To turn the lights on again, turn the “START STOP ENGINE” <“POWER”> switch to
IGNITION ON mode, or turn the light switch off once and then back to
or .
If any of the doors or trunk lid is kept open, the lights automatically turn off after 20
minutes. 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.

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Driving
■Light reminder buzzer
A buzzer sounds when the “START STOP ENGINE” <“POWER”> switch is turned
off or turned to ACCESSORY mode and the driver’s door is opened while the lights
are turned on.
■Automatic headlight leveling system (if equipped)
The level of the headlights is automatically adjusted according to the number of pas-
sengers and the loading condition of the vehicle to ensure that the headlights do not
interfere with other road users.
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: → P. 8 6 2 )
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the engine is not running
.

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4-3. Operating the lights and wipers
Automatic High Beam∗
Push the lever away from you
with the headlight switch in
or position.
Press the Automatic High Beam
switch.
The Automatic High Beam indicator
will come on when the headlights are
turned on automatically to indicate
that the system is active.
∗: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to assess
the brightness of streetlights, th e lights of oncoming and preceding
vehicles, etc., and automatic ally turns high beam on or off as necessary.
Activating the Automatic High Beam system
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Driving
■The Automatic High Beam can be operated when
The “START STOP ENGINE” <“POWER”> switch is in IGNITION 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
• When oncoming or preceding vehicles are hidden from sight due to repeatedcurves, road dividers or roadside trees
• When oncoming vehicles appear from the faraway lane on wide road
• When oncoming or preceding vehicles have no lights
●High beam may be turned off if an oncoming vehicle that is using fog lights without
using the headlights is detected.
●House lights, street lights, red traffic signals, and illuminated billboards or signs may
cause the high beam to turn off.
●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 preced- ing vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle only has operational lights on one side
• When a oncoming or preceding vehicle 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
●High beam may be turned on or off when unexpected by the driver.

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4-3. Operating the lights and wipers
●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 camera sensor is deformed or dirty.
• The camera sensor temperature is extremely high.
• Surrounding brightness levels are equal to those of headlights, tail lights or foglights.
• Vehicles ahead have headlights or tail lights that are either switched off, dirty, are changing color, or are not aimed properly.
• When driving through an area of intermittently changing brightness and dark- ness.
• 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 mirror.
• The back of a vehicle ahead is highly reflective, such as a container on a truck.
• The vehicle’s headlights are damaged or dirty, or are not aimed properly.
• The vehicle is listing or titling, due to a flat tire, a trailer being towed etc.
• The high beam and low beam are repeatedly 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.
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the “START STOP ENGINE” <“POWER”> switch off while the following
conditions are met.
• The headlight switch is in or .
• The headlight switch lever is in high beam position.
• Automatic High Beam switch is on.
Turn the “START STOP ENGINE” <“POWER”> switch to IGNITION ON
mode.
Within 5 seconds after , repeat pulling the headlight switch lever to the origi-
nal position then pushing it to the high beam position quickly 9 times, then leave
the lever in high beam position.
Automatic High Beam (headlights) may turn on even the vehicle is stopped.
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CAUTION
■Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning high beam on or off manually if necessary.
NOTICE
■Notes when using the Automatic High Beam system
Observe the following to ensure that the Automatic High Beam functions cor-
rectly.
●Do not place items on the dashboard. There is a possibility that the camera sensor
will mistake items reflected in the windshield for streetlights, the headlights of
other vehicles, etc.
●Do not install a parking tag or any other accessories near or around the camera
sensor.
●Do not overload the vehicle.
●Do not modify the vehicle.
●Do not replace windshield with non-genuine windshield.
Contact your Lexus dealer.
●Do not replace headlights with non-genuine headlights.
Contact your Lexus dealer.
●Do not touch the camera sensor.
●Do not subject the camera sensor to a
strong impact.
●Do not disassemble the camera sensor.
●Do not spill liquid onto the camera sensor.
●Do not apply window tinting or stickers to
the camera sensor or the area of windshield
near the camera sensor.

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XRain-sensing windshield wipers
Temporary operation
Rain-sensing wiper operation
(AUTO)
Low speed operation
High speed operation
When AUTO is 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.
The sensor sensitivity can be adjusted when AUTO is selected.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual operation
Wipers will automatically operate a
couple of times after the washer
squirts.
■The windshield wiper and washer can be operated when
The “START STOP ENGINE” <“POWER”> switch is in IGNITION ON
mode.
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■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to AUTO position while the “START STOP ENGINE”
<“POWER”> switch is in IGNITION ON mode, the wipers will operate once
to show that AUTO mode is activated.
●When the sensor sensitivity ring is turned toward high while in AUTO mode, the
wipers will operate once to indicate that the sensor sensitivity is enhanced.
●If the temperature of the raindrop sensor is 185°F (85°C) or higher, or -22°F
(-30°C) or lower, automatic operation may not occur. In this case, operate the
wipers in any mode other than AUTO mode.
■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.
●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.
CAUTION
■Caution regarding the use of windshield wipers in AUTO mode (vehicles with
rain-sensing windshield wipers)
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.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm.
The fluid may freeze on the windshield and cause low visibility. This may lead to an
accident, resulting in death or serious injury.