2017 Lexus ES300h sensor

1413-4. Adjusting the steering wheel and mirrors
ES300h_OM_OM33C75U_(U)
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Operation of each component
■To prevent sensor error
To ensure that the sensors operate properly, do
not touch or cover them.
WA R N I N G
Do not adjust the position of the mirror while driving.
Doing so may lead to mishandling of the vehicle and cause an accident, resulting in
death or serious injury.

ES300h_OM_OM33C75U_(U)
1834-3. Operating the lights and wipers
4
Driving
With the headlights on, push the
lever away from you to turn on the
high beams.
Pull the lever toward you to the center
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) improves visibility at intersections and on
curves by automatically adjusting the lateral angle of the headlights according to
vehicle speed and the degree of the tire angle that are controlled by steering
input.
Operates at speed of 6 mph (10 km/h) or higher.
■Deactivating AFSSelect “AFS” on the (settings display) of the multi-information dis-
play. ( →P. 9 2 )
Press the meter control switch.
■Daytime running light system
●To make your vehicle more visible to other drivers during daytime driving, the daytime
running lights turn on automatically whenever the hybrid system is started and the park-
ing brake is released. (Illuminate brighter than the parking lights.) 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.
●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.
■Headlight control sensor
Turning on the high beam headlights
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AFS (Adaptive Front-lighting System) (if equipped)
The sensor may not function properly if an
object is placed on the sensor, or anything that
blocks the sensor is affixed to the windshield.
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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ES300h_OM_OM33C75U_(U)4-3. Operating the lights and wipers
■Automatic light off system
When the light switch is in , or :
The headlights and tail lights turn off 30
seconds after the power switch is turned to ACCESSORY mode or turned off and a
door is opened and all of th e 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 power switch to 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 min-
utes.
■Light reminder buzzer
A buzzer sounds when the 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 passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■If “Headlight System Malfunction Visit Your Dealer” is displayed on the multi-informa-
tion display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer.
■Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: →P. 5 6 2 )
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is not operat-
ing.

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ES300h_OM_OM33C75U_(U)4-3. Operating the lights and wipers
4
Driving
Automatic High Beam∗
Push the lever away from you with
the headlight switch in the 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 sys-
tem is active.
∗: If equipped
The Automatic High Beam uses an in-vehicle camera sensor to assess the
brightness of streetlights, the lights of vehicles ahead, etc., and automatically
turns the high beam on or off as necessary.
WA R N I N G
■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 the high beam on or off manually if necessary.
■To prevent incorrect operation of the Automatic High Beam system
Do not overload the vehicle.
Activating the Automatic High Beam system
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ES300h_OM_OM33C75U_(U)
1874-3. Operating the lights and wipers
4
Driving
■Camera sensor detection information
●The 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 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 beam may be turned off if a vehicle ahead that is using fog lights without using
the headlights is detected.
●House lights, street lights, traffic signals, and illuminated billboards or signs may cause
the high beam to switch to the low beams, or the low beams to remain on.
●The following factors may affect the amount of time taken to turn the high beam on or
off:
• 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 high beam may be turned on or off when the driver does not expect it.
●Bicycles or similar objects may not be detected.
●In the situations shown below, the system may not be able to accurately detect sur-
rounding brightness levels. This may cause the low beams to remain on or the high
beams to cause problems for pedestrians, ve hicles ahead or other parties. In these
cases, manually switch between the high and low beams.
• 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 fog lights.
• 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 intermit tently changing brightness and darkness.
• When frequently and repeated ly 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 tilting due to a flat tire, a trailer being towed, etc.
• The high beam and low beam are repeatedly being switched between in an abnor-
mal manner.
• The driver believes that the high beam may be causing problems or distress to other
drivers or pedestrians nearby.

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ES300h_OM_OM33C75U_(U)4-3. Operating the lights and wipers
■Temporarily lowering sensor sensitivity
The sensitivity of the sensor can be temporarily lowered.
Turn the 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 power switch to ON mode.
Within 30 seconds after , repeat pulling the headlight switch lever to the original
position then pushing it to the high beam position quickly 10 times, then leave the
lever in high beam position.
If the sensitivity is changed, the Automati c High Beam indicator is turn on and off
three times.
Automatic High Beam (headlights) may turn on even the vehicle is stopped.
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4

ES300h_OM_OM33C75U_(U)
1914-3. Operating the lights and wipers
4
Driving
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 automat-
ically 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 cou-
ple of times after the washer squirts.
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ES300h_OM_OM33C75U_(U)4-3. Operating the lights and wipers
■The windshield wiper and washer can be operated when
The power switch is in ON mode.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper switch is turned to AUTO position while the power switch is in 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 th e 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 windshield
washer fluid reservoir.
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is ad opted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun intermittently strikes the
windshield, or if bugs etc. are present on the
windshield.
WA R N I N G
■Caution regarding the use of windshield wi pers in AUTO mode (vehicles with rain-
sensing windshield wipers)
The windshield wipers may operate unexpectedly if the sensor is touched or the wind-
shield is subject to vibration in AUTO mo de. 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 fl uid until the windshield becomes warm. The
fluid may freeze on the windshield and cause lo w visibility. This may lead to an accident,
resulting in death or serious injury.