2018 TOYOTA YARIS sensor

2414-3. Operating the lights and wipers
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Driving
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■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
operated and the parking brake is released with the headlight switch off or in
the “AUTO” position. (Illuminate brighter than the front position lights.) Day-
time running lights are not designed for use at night.
■ Headlight control sensor
■ Automatic light off system (if equipped)
Vehicles without a smart entry & start system
● When the light switch is in or : The headlights and front fog
lights turn off automatically when the power switch is turned to the “LOCK”
position.
● When the light switch is in : The headlights and all the lights turn off
automatically when the power switch is turned to the “LOCK” position.
To turn the lights on again, turn the power switch to the “ON” position, or turn
the light switch to once and then back to or .
Vehicles with a smart entry & start system
● When the light switch is in or : The headlights turn off automati-
cally if the power switch is turned to ACCESSORY mode or turned off and
the driver’s door is opened.
● When the light switch is in : The headlights and tail lights turn off auto-
matically if the power switch is tu rned to ACCESSORY mode or turned off
and the driver’s door is opened.
To turn the lights on again, turn the power switch to ON mode, or turn the light
switch to 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
windshield.
Doing so interferes with the sensor
detecting the level of ambient light and
may cause the automatic headlight sys-
tem to malfunction.

2424-3. Operating the lights and wipers
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■ Automatic High Beam (if equipped)
 P. 287
■ Light reminder buzzer
Vehicles without a smart entry & start system
A buzzer sounds when the key is removed from the power switch and the
driver’s door is opened while the lights are turned on.
Vehicles with a smart entry & start system
A buzzer sounds when the power switch is turned off or turned to ACCES-
SORY mode and the driver’s door is opened while the lights are turned on.
■ Battery-saving function
In all conditions following below, the headlights and the other remaining lights
will go off automatically after 20 minutes in order to prevent the vehicle bat-
tery from being discharged:
● The headlights and/or tail lights are on.
● The light switch is in or .
● Vehicles without a smart entry & start system: The power switch is in the
“ACC” or the “LOCK” position.
● Vehicles with a smart entry & start system: The power switch is turned to
ACCESSORY mode or turned off.
This function will be canceled in any of the following situations:
● Vehicles without a smart entry & start system: When the power switch is
turned to the “ON” position.
● Vehicles with a smart entry & start system: When the power switch is turned
to ON mode.
● When the light switch is operated.
● When the door is opened or closed.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features: P. 603)

2474-3. Operating the lights and wipers
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Driving
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Rain-sensing windshield wiper
When is selected, the wiper will operate automatically when the
sensor detects falling rain. The system automatically adjusts wiper
timing in accordance with rain volume and vehicle speed.
When is selected, the sensor sensitivity can be adjusted as fol-
lows by turning the switch ring:
Off
Rain-sensing windshield
wiper operation
Low speed windshield
wiper operation
High speed windshield
wiper operation
Temporary operation
Increases the sensitivity
Decreases the sensitivity
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2
3
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5
6
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2484-3. Operating the lights and wipers
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Washer/wiper dual operation
The wiper will automatically
operate a couple of times after
the washer squirts.
(After operating several times,
the wiper operate one more
time after a short delay to pre-
vent dripping.)
■ The windshield wiper and washer can be operated when
Vehicles without a smart entry & start system
The power switch is in the “ON” position.
Vehicles with a smart entry & start system
The power switch is in ON mode.
■ Raindrop sensor (vehicles with a rain-sensing windshield wiper)
● Vehicles without a smart entry & start system: If the wiper switch is turned to
while the power switch is in the “ON” position, the wiper will operate
once to show that “AUTO” mode is activated.
● Vehicles with a smart entry & start system: If the wiper switch is turned to
while the power switch is in ON mode, the wiper will operate once to
show that “AUTO” mode is activated.
● When the sensor sensitivity ring is turned toward high while in “AUTO”
mode, the wiper will operate once to indicate that the sensor sensitivity is
enhanced.
● If the temperature of the raindrop sensor is 90°C (194°F) or higher, or
-15°C (5°F) or lower, automatic operation may not occur. In this case, oper-
ate the wiper in any mode other than “AUTO” mode.
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● 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.

2494-3. Operating the lights and wipers
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■ If no windshield washer fluid sprays
Check that the washer nozzle is not blocked, if there is washer fluid in the
windshield washer fluid reservoir.
WARNING
■ Caution regarding the use of windshield wiper in “AUTO” mode (vehi-
cles with a rain-sensing windshield wiper)
The windshield wiper may operate unexpectedly if the sensor is touched or
the windshield is subject to vibration in “AUTO” mode. Take care that your
fingers, etc., do not become caught in the windshield wiper.
■ 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.
NOTICE
■ When the windshield is dry
Do not use the wiper, 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.
■ When a nozzle becomes blocked
In this case, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

2574-5. Toyota Safety Sense
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Driving
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The front sensor is located on the
upper side of the windshield. It
consists of 2 types of sensors,
each of which detects information
necessary to operate the drive
assist systems.
Laser sensors
Monocular camera sensor
Front sensor
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2
WARNING
■ Front sensor
The front sensor uses lasers to detect vehicles ahead of your vehicle. The
front sensor is classified as class 1M laser product according to the IEC
60825-1 standard. Under normal usage conditions, these lasers are not
harmful to the naked eye. However, it is necessary to observe the following
precautions.
Failure to do so may result in the loss of eyesight or severe visual impair-
ment.
● To avoid hazardous laser radiation exposure, never attempt to disassem-
ble the front sensor (e.g. remove the lenses). When disassembled, the
front sensor is classified as a class 3B laser product according to the IEC
60825-1 standard. Class 3B lasers are hazardous and pose a risk of eye
injury under direct exposure.

2584-5. Toyota Safety Sense
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WARNING
●Do not attempt to look into the front sensor with a magnifying glass, micro-
scope or other optical instrument within a distance of less than 100 mm
(3.9 in.).
Laser classification label
Laser explanatory label
Laser emission data
Maximum average power: 45 mW
Pulse duration: 33 ns
Wave length: 905 nm
Divergence (horizontal  vertical): 28°  12°

2594-5. Toyota Safety Sense
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WARNING
■To avoid malfunction of the front sensor
Observe the following precautions.
Otherwise, the front sensor may not operate properly, possibly leading to an
accident resulting in death or serious injury.
● Keep the windshield clean at all times. If the windshield is dirty or covered
with an oily film, water droplets, snow, etc., clear the windshield. If the
inner side of the windshield in front of the front sensor is dirty, contact any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
● Do not attach objects, such as stickers,
transparent stickers, etc., and so forth,
to the outer side of the windshield in
front of the front sensor (shaded area in
the illustration).
A: From the top of the windshield to
approximately 10 cm (4.0 in.) below
the bottom of the front sensor
B: Approximately 20 cm (7.9 in.)
(Approximately 10 cm [4.0 in.] to the
right and left from the center of the
front sensor)
● Do not install or attach anything to the
inner side of the windshield under the
front sensor (shaded area in the illustra-
tion).
A: Approximately 10 cm (4.0 in.) (Start-
ing from the bottom of the front sen-
sor)
B: Approximately 20 cm (7.9 in.)
(Approximately 10 cm [4.0 in.] to the
right and left from the center of the
front sensor)