TOYOTA YARIS 2018 Owners Manual

2714-5. Toyota Safety Sense
4
Driving
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• When driving on a narrow path surrounded by a structure, such as in a
tunnel or on an iron bridge
• When passing extremely close to a
vehicle or structural object
• When there is a vehicle or object by
the roadside at the entrance of a
curve
• When there is a reflective object
(manhole cover, steel plate, etc.),
steps, dip, or a protrusion on the road
surface or roadside
• When passing through a place with a
low structure above the road (low ceil-
ing, traffic sign, etc.)
• When there is a structural object
(overpass, traffic sign, billboard,
street light, etc.) at the top of an uphill
road

2724-5. Toyota Safety Sense
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• When using an automatic car wash
• When there are patterns or paint on the road or a wall that may be mis-
taken for a vehicle
• When rapidly closing on an electric
toll gate barrier, parking area barrier,
or other barrier that opens and closes
• When approaching a low hanging
object that may contact the vehicle,
such as a banner, tree branches or
thick grass
• When the vehicle is hit by water,
snow, dust, etc. from a vehicle ahead
• When driving through steam or
smoke

2734-5. Toyota Safety Sense
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Driving
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• 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 the vehicle is being parked in a
place where there is a low hanging
object at the height of the front sensor
• When the windshield is covered with
raindrops, etc.

2744-5. Toyota Safety Sense
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■ Situations in which the system may not operate properly
● In some situations such as the following, a vehicle may not be detected by
the front sensor, preventing the system from operating properly:
• If an oncoming vehicle is approaching your vehicle
• When approaching the side or front of a vehicle
• If a preceding vehicle has a small rear end, such as an unloaded truck
• If a vehicle ahead is carrying a load which protrudes past its rear bumper
• If a vehicle ahead is irregularly shaped, such as a tractor or side car
• If the sun or other light is shining directly on a vehicle ahead
• If a vehicle ahead makes an abrupt maneuver (such as sudden swerving,
acceleration or deceleration)
• When suddenly cutting behind a preceding vehicle
• If a preceding vehicle has a low rear
end, such as a low bed trailer
• If a vehicle ahead has extremely high
ground clearance
• If a vehicle cuts in front of your vehicle
or emerges from beside a vehicle

2754-5. Toyota Safety Sense
4
Driving
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• When the vehicle is hit by water, snow, dust, etc. from a vehicle ahead
• When driving through steam or smoke that may obscure vehicles ahead
• When driving in a place where the surrounding brightness changes sud-
denly, such as at the entrance or exit of a tunnel
• While driving on a curve and for a certain amount of time after driving on
a curve
• When a vehicle ahead is not directly
in front of your vehicle
• When driving in inclement weather
such as heavy rain, fog, snow or a
sand storm
• When a very bright light, such as the
sun or the headlights of oncoming
traffic, shines directly into the front
sensor
• When the surrounding area is dim,
such as at dawn or dusk, or while at
night or in a tunnel

2764-5. Toyota Safety Sense
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• If the wheels are misaligned
• If a wiper blade is blocking the front sensor
• The vehicle is wobbling.
• The vehicle is being driven at extremely high speeds.
• When driving on roads with sharp bends or uneven surfaces
• When a preceding vehicle is a poor reflector of laser
● In some situations such as the following, sufficient braking force may not be
obtained, preventing the system from performing properly:
• If the braking functions cannot operate to their full extent, such as when
the brake parts are extremely cold, extremely hot, or wet
• If the vehicle is not properly maintained (brakes or tires are excessively
worn, improper tire inflation pressure, etc.)
• When the vehicle is being driven on a gravel road or other slippery sur-
face
• If your vehicle is skidding
• 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.

2774-5. Toyota Safety Sense
4
Driving
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■ If the PCS warning light flashes or illuminates (vehicles with mono-
chrome display)
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
( P. 390)
• When driving in conditions where the front sensor cannot detect an
object, such as in the dark (at night on a road without street lights or other
lights, etc.), when bright light is shining into the sensor, or in snow or fog.
• When the front sensor or the area around either sensor is cold, such as in
an extremely cold environment
• 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 or illuminate, the system may be
malfunctioning. Have the vehicle inspected by any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer immediately.
■ If the PCS warning light flashes or illuminates and a warning message is
displayed on the multi-information di splay (vehicles with color display)
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 turn off, the message will
disappear and the system will beco me operational when normal operating
conditions return:
• When the area around the front sensor is hot, such as in the sun
• When the windshield is fogged up or covered with condensation or ice
( P. 390)
• When driving in conditions where the front sensor cannot detect an
object, such as in the dark (at night on a road without street lights or other
lights, etc.), when bright light is shining into the sensor, or in snow or fog.
• When the front sensor or the area around either sensor is cold, such as in
an extremely cold environment
• 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 or illuminate or the warning mes-
sage does not disappear, the system may be malfunctioning. Have the vehi-
cle inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately.

2784-5. Toyota Safety Sense
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■ If VSC is disabled
● If TRC and VSC are disabled (P. 305), the pre-crash brake assist and pre-
crash braking functions are also disabled. However, the pre-crash warning
function will still operate.
● Vehicles with monochrome display: The PCS warning light illuminates.
● Vehicles with color display: The PCS warning light illuminates and “VSC
turned off. Pre-crash brake system unav ailable.” is displayed on the multi-
information display.

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4
4-5. Toyota Safety Sense
Driving
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LDA (Lane Departure 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 multi-informa-
tion display.
Front sensor
: If equipped
Summary of function

2804-5. Toyota Safety Sense
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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 the “ON” position (vehi-
cles without a smart entry & start
system) or ON mode (vehicles with
a smart entry & start system).
● 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.)
Turning the LDA system on
Operating conditions