2015 TOYOTA YARIS HYBRID Owners Manual

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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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2204-5. Toyota Safety Sense
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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.

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WARNING
■ Limitations of the pre-crash safety system
● The driver is solely responsible for safe driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-crash safety sy stem instead of normal braking opera-
tions under any circumstances. This system will not prevent collisions or
lessen damage or injuries in every situation. Do not overly rely on this
system. Failure to do so may lead to an accident, resulting in death or
serious injury.
Although this system is designed to help avoid and reduce the impact of a
collision, its effectiveness may change according to various conditions
( →P. 217). As a result, the system may not always provide the same level
of performance.
● The pre-crash braking function may not operate if certain operations are
performed by the driver. If the accelerator pedal is being depressed
strongly or the steering wheel is bei ng turned, the system may determine
that the driver is taking evasive action and possibly prevent the pre-crash
braking function from operating.
● In some situations, while the pre-crash braking function is operating, oper-
ation of the function may be canceled if the accelerator pedal is depressed
strongly or the steering wheel is turned and the system determines that
the driver is taking evasive action.
● A large amount of braking force is applied while the pre-crash braking
function is operating. Additionally, as the vehicle may creep after the pre-
crash braking function has operated, the driver should depress the brake
pedal as necessary.

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WARNING
■ Cautions regarding the assist functions of the system
By means of warnings and brake control, the pre-crash safety system is
intended to assist the driver in avoiding collisions through the process of
LOOK-JUDGE-ACT. There are limits to the degree of assistance the system
can provide, so keep in mind the following important points.
● Assisting the driver in watching the road
The pre-crash safety system is only able to detect vehicles directly in front
of your vehicle, and only within a limi ted range. It does not allow for care-
less or inattentive driving, and is not a system that can assist the driver in
low-visibility conditions. It is still necessary for the driver to pay close atten-
tion to the vehicle’s surroundings.
● Assisting the driver in making correct judgement
When attempting to estimate the possibility of a collision, the only data
available to the pre-crash safety system is that from vehicles it has
detected directly in front of the vehicle. Therefore, it is absolutely neces-
sary for the driver to remain vigila nt and to determine whether or not there
is a possibility of collision in any given situation.
● Assisting the driver in taking action
The pre-crash brake assist and pre- crash braking functions are designed
to help avoid a collision or reduce the severity of a collision, as such they
only operate when the system has determined that the possibility of a col-
lision is high. This system is not capable of automatically avoiding a colli-
sion or bringing the vehicle to a stop safely, without appropriate operations
being performed by the driver. For this reason, when encountering a dan-
gerous situation the driver must take direct and immediate action in order
to ensure the safety of all involved.
NOTICE
■ To avoid malfunction of the system
In the following situations, disable the pre-crash safety system. The system
may operate even if there is no possibility of a collision.
● When inspecting the vehicle using a drum tester such as a chassis dyna-
mometer or speedometer tester, or when using an on vehicle wheel bal-
ancer
● When transporting the vehicle via boat, truck, or similar means of transpor-
tation
● When the front part of the vehicle is raised or lowered, such as if tires of a
different size than specified are used or if the suspension components are
modified
● When the vehicle is being towed

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4-5. Toyota Safety Sense
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LDA (Lane Depar ture Alert)∗
While driving on a road that has lane markers, this system recognizes
the lane markers using a camera as a sensor to alert the driver when
the vehicle deviates from its lane.
If the system judges that the vehicle has deviated from its lane, it
alerts the driver using a buzzer and indications on the meter.
Front sensor
Press the LDA switch to activate
the system.
The LDA indicator will come on.
Press the switch again to turn the
LDA system off.
The LDA system will remain on or
off even if the power switch is
turned to ON mode.
● When the vehicle speed is approximately 50 km/h (32 mph) or
more
● When the lane width is more than approximately 3 m (9.8 ft.)
● When driving on a straight road or through a curve with a radius of
more than approximately 150 m (492 ft.)
∗: If equipped
Summary of function
Turning the LDA system on
Operating conditions

2244-5. Toyota Safety Sense
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When both of the lane marker
indicators turn green:
Indicates that both right and left
lane markers are recognized.
If the vehicle deviates from the
lane, the lane marker indicators of
the deviated side will flash yellow.
When either of the lane marker
indicators turns green:
Indicates that the lane marker on
the green-marked side is recog-
nized.
If the vehicle deviates from a lane
on the side with the recognized
lane markers, the lane marker indi-
cators will flash in yellow.
When both of the lane marker
indicators turn off:
Indicates that no lane markers are
recognized or the LDA system is
temporarily canceled.
Indication on the meter