TOYOTA YARIS HYBRID 2015 Owners Manual

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4-5. Toyota Safety Sense
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Toyota Safety Sense∗
◆PCS (Pre-Crash Safety system)
→ P. 2 1 5
◆LDA (Lane Departure Alert)
→ P. 2 2 3
◆Automatic High Beam
→ P. 2 2 8
∗: If equipped
The Toyota Safety Sense system consists of the following drive
assist systems and contributes to a safe and comfortable driv-
ing experience.

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The pre-crash safety system is equipped with a sophisticated com-
puter that will record certain data, such as:
• How far (if at all) the driver was depressing the accelerator and/or
brake pedal
• Vehicle speed
• Operation status of the pre-crash safety system functions
• Information (such as the distance and relative speed between your
vehicle and the vehicle ahead or another object)
The pre-crash safety system does not record conversations, sounds
or pictures.
● Data usage
Toyota may use the data recorded in these computers to diagnose
malfunctions, conduct research and development, and improve
quality.
Toyota will not disclose the recorded data to a third party except:
• With the consent of the vehicle owner or with the consent of the
lessee if the vehicle is leased
• In response to an official request by the police, a court of law or a
government agency
• For use by Toyota in a lawsuit
• For research purposes where the data is not tied to a specific
vehicle or vehicle owner
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
Vehicle data recordings
Front sensor
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WARNING
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 harm-
ful to the naked eye. However, it is necessary to observe the following precau-
tions.
Failure to do so may result in the loss of eyesight or severe visual impairment.
● 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.
● 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°

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NOTICE
■ Front sensor
Observe the following to ensure that the sensor operates correctly:
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 attach window tinting to the windshield.
● If the part of the windshield in front of the front sensor is fogged up or cov- ered with condensation or ice, use the windshield defogger to remove thefog, condensation or ice.
● Keep the windshield clean at all times. The pre-crash safety system may not function properly if the windshield isdirty or covered with an oily film, water droplets, snow, etc. If the inner side of the windshield where the front sensor is installed is dirty,do not attempt to remove the front sensor. Contact any authorized Toyotadealer or repairer, or another dul y qualified and equipped professional.
● If the windshield needs to be replaced, contact any authorized Toyota dealer or repairer, or another dul y qualified and equipped professional.
● Do not install an antenna in front of the sensor.
● Do not spill liquid onto the sensor.
● Do not allow bright lights to shine into the sensor.
●Do not damage or let the lenses of the front sensor get dirty. When cleaning the inner side of the windshield, do not let glass cleaner con-tact the lenses. Also, do not touch the lenses. For proper care of the lenses of the front sensor, contact any authorizedToyota dealer or repairer, or another duly qualified and equipped profes-sional.
●Do not change the installation position or direction of the sensor or remove it.The direction of the sensor is precisely adjusted.
●Do not subject the sensor to strong impact or disassemble it.
●Do not install an electronic device or device that emits strong electric wavesnear the front sensor.
●Do not place reflective objects on top of the instrument panel.
● Do not attach stickers, including trans- parent stickers, or other items to theouter side of the windshield in front ofthe 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
● Do not install or attach anything to the inner side of the windshield under thefront sensor (shaded area in the illustra-tion).
A: Approximately 10 cm (4.0 in.) (Starting from the bottom of the front sensor)
B: Approximately 20 cm (7.9 in.) (Approx- imately 10 cm (4.0 in.) to the right and leftfrom the center of the front sensor)

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PCS (Pre-Crash Safety system)∗
◆Pre-crash warning
When the system determines
that the possibility of a frontal
collision with a vehicle is high, a
buzzer will sound and the PCS
activation indicator will flash to
urge the driver to take evasive
action.
◆Pre-crash brake assist
When the system determines that the possibility of a frontal colli-
sion with a vehicle is high, the system applies greater braking force
in relation to how strongly the brake pedal is depressed.
◆Pre-crash braking
When the system determines that the possibility of a frontal colli-
sion with a vehicle is high, the system warns the driver. If the sys-
tem determines that the possibility of a collision is extremely high,
the brakes are automatically applied to help avoid the collision or
reduce the collision speed.
∗: If equipped
The pre-crash safety system uses the front sensor to detect
vehicles in front of your vehicle. When the system determines
that the possibility of a frontal collision with a vehicle is high,
pre-crash warning urges the driver to take evasive action and
the potential brake pressure will be increased to help the driver
avoid the collision.
If the system determines that the possibility of a frontal collision
with a vehicle is extremely high, the brakes are automatically
applied to help avoid the collision or help reduce the impact to
the vehicle occupants and the vehicle in the collision.
The pre-crash warning timing can be changed or the system can be
enabled/disabled, as necessary, by operating the switch. ( →P. 216)

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■Changing the pre-crash warning timing
Each time the PCS switch is
pressed, the warning timing
changes as follows:
Far (operation starts earlier)
Middle (default setting)
Near (operation starts later)
When the PCS switch is
pressed to turn the system on,
the PCS activation indicator will
turn on and the current warning
timing will be displayed on the
multi-information display.
■Disabling the pre-crash safety system
Press the PCS switch for 3 sec-
onds or more.
The PCS warning light will turn
on and a message will be dis-
played on the multi-information
display.
To enable the system, press the
PCS switch again.
Vehicles without a smart entry &
start system: The system is
enabled each time the power
switch is turned to the “ON”
position.
Vehicles with a smart entry &
start system: The system is
enabled each time the power
switch is turned to IGNITION
ON mode.
Changing the pre-crash safety system
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■Operational conditions
The pre-crash safety system is enabled and determines that the possibility of
a frontal collision with a vehicle (e xcept motorcycles and bicycles) is high.
● Pre-crash warning:
• Vehicle speed is approximately 15 to 140 km/h (10 to 86 mph).
• The relative speed between your vehicle and the vehicle ahead is greater
than approximately 15 km/h (10 mph).
● Pre-crash brake assist:
• Vehicle speed is approximately 30 to 80 km/h (19 to 49 mph).
• The relative speed between your vehicle and the vehicle ahead is greater
than approximately 30 km/h (19 mph).
● Pre-crash braking:
• Vehicle speed is approximately 10 to 80 km/h (7 to 49 mph).
• The relative speed between your vehicle and the vehicle ahead is greater
than approximately 10 km/h (7 mph).
The system may not operate in the following situations:
● If a battery terminal has been disconnected and reconnected and then the
vehicle has not been driven for a certain amount of time
● If VSC is disabled (only the pre-crash warning function will be operational)
● If the PCS warning light is flashing or illuminated
■ Cancelation of the pre-crash braking
● If either of the following situations occur while the pre-crash braking function
is operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
● If the vehicle is stopped by the operation of the pre-crash braking function,
the operation of the pre-crash braking function will be canceled after the
vehicle has been stopped for approximately 2 seconds.

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■ Conditions under which the system may operate even if there is no pos-
sibility of a collision
In the following situations the sensor may detect an object and cause the sys-
tem to determine that there is a possibility of a frontal collision and operate.
When there is an object (traffic sign, guard rail, etc.) by the roadside at
the entrance of a curve
When passing an oncoming vehicle on a curve
When passing an oncoming vehicle while making a left or right turn
When rapidly closing on a preceding vehicle
When rapidly closing on an electric toll gate barrier, parking area barrier,
or other barrier that opens and closes
When approaching an overpass, traffic sign, billboard, etc.
When the front part of the vehicle is raised or lowered
When the sensor is misaligned due to a strong impact being applied to
the sensor, etc.
When there is a structural object (billboard, street light, etc.) at the top of
an uphill road
When there is a metal object (manhole cover, steel plate, etc.) at the bot-
tom of a downhill road
When approaching a low hanging object that may contact the vehicle,
such as a banner or tree branches
When driving through dense fog or smoke
When the vehicle is hit by water or snow from a preceding vehicle, etc.
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When there is a reflective object, bump, protrusion, etc. on the road sur-
face
When the vehicle is being parked in a place where there is a low hanging
object at the height of the front sensor
When passing extremely close to an object (stopped vehicle, guardrail,
etc.)
■ Situations in which the pre-crash safety system may not function prop-
erly
The system may not function properly in the following situations:
When driving on roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of your vehicle, such as at an inter-
section
If a vehicle suddenly cuts in front of your vehicle
If your vehicle is skidding
When the front part of the vehicle is raised or lowered
When the windshield is dirty or cover ed with raindrops, condensation, ice,
snow, etc.
When the sensor is misaligned due to a strong impact being applied to
the sensor, etc.
When a preceding vehicle is a poor reflector of laser (the rear part of the
vehicle lowered, very dirty, etc.)
When a very bright light, such as the sun or the headlights of oncoming
traffic, shines directly into the front sensor
When driving in inclement weather such as heavy rain, fog, snow or a
sand storm
When the surrounding area is dark, such as while in a tunnel or during
nighttime
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■ If the PCS warning light flashes
The pre-crash safety system may be temporarily unavailable or there may be
a malfunction in the system.
● In the following situations, the warning light will be cleared and the system
will become operational when normal operating conditions return:
• When the area around the front sensor is hot, such as after the vehicle
has been parked in the sun
• When the windshield is fogged up or covered with condensation or ice
• If the area in front of the front sens or is obstructed, such as when the
hood is open
● If the PCS warning light continues to flash, the system may be malfunction-
ing. Have the vehicle inspected by any authorized Toyota dealer or repairer,
or another duly qualified and equi pped professional immediately.
■ If the TRC and VSC are disabled
● If the TRC and VSC are disabled (→P. 239), pre-crash brake assist and pre-
crash braking are also disabled. However, the pre-crash warning function
will still operate.
● The PCS warning light illuminates.