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3054-5. Toyota Safety Sense
4
Driving
YARIS_F_OM_Europe_OM52A54E■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
• 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 sensor 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 display (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 become 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. 442, 452)
• 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 sensor 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.
Page 306 of 692
3064-5. Toyota Safety Sense
YARIS_F_OM_Europe_OM52A54E■If VSC is disabled
●If TRC and VSC are disabled (P. 357), 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 unavailable.” is displayed on the multi-
information display.
Page 307 of 692
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4
4-5. Toyota Safety Sense
Driving
YARIS_F_OM_Europe_OM52A54E
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
Page 308 of 692
3084-5. Toyota Safety Sense
YARIS_F_OM_Europe_OM52A54E
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 engine switch is
turned to “ON” position (vehicles
without a smart entry & start sys-
tem) or IGNITION ON mode (vehi-
cles 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
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3094-5. Toyota Safety Sense
4
Driving
YARIS_F_OM_Europe_OM52A54E
Vehicles with monochrome display
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 multi-information display
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3104-5. Toyota Safety Sense
YARIS_F_OM_Europe_OM52A54E
Vehicles with color display
When the inside of both lane lines
turn white:
Indicates that both right and left
lane markers are recognized.
If the vehicle deviates from the
lane, the lane line on the side the
vehicle has deviated from will flash
yellow.
When the inside of either lane line
turns white:
Indicates that the lane marker on
the white-marked side is recog-
nized.
If the vehicle deviates from the side
of a lane with recognized lane
markers, the lane line will flash yel-
low.
When the inside of both lane lines
are black:
Indicates that no lane markers are
recognized or the LDA system is
temporarily canceled.
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3114-5. Toyota Safety Sense
4
Driving
YARIS_F_OM_Europe_OM52A54E
■Temporary cancelation of the LDA system functions
If any of the following occurs, the LDA system functions will be temporarily
canceled. The functions will resume after the necessary operating conditions
have returned.
●The turn signal lever is operated.
●The vehicle speed deviates from the operating range of the LDA system
functions.
●When the lane lines cannot be recognized while driving.
●When the lane departure warning sounds.
The lane departure warning function will not operate again for a several sec-
onds after it has been activated, even if the vehicle leaves the lane again.
■The lane departure warning
Depending on the audio system sound level or air conditioning fan noise
while the audio system or air conditioning system is in use, it may be difficult
to hear the warning sound.
■After the vehicle has been parked in the sun
The LDA system may not be immediately available. When the temperature in
the cabin decreases and the temperature around the front sensor (P. 307)
becomes suitable for its operation, the functions will begin to operate.
■If there are lane markers on only one side of the vehicle
The lane departure warning will not operate for the side on which lane mark-
ers could not be recognized.
■Conditions in which the function may not operate correctly
In the following situations, the front sensor may be unable to recognize lane
markers causing the lane departure warning function to operate incorrectly.
However, this does not indicate a malfunction.
●When driving through an area, such as a tollbooth, a crossing or before a
ticket checkpoint
●When driving on a sharp curve
●When lane markers are extremely narrow or extremely wide
●When the vehicle leans to one side an unusual amount due to a heavy load
or improper tire inflation pressure
●When the following distance between your vehicle and the vehicle ahead is
extremely short
Page 312 of 692

3124-5. Toyota Safety Sense
YARIS_F_OM_Europe_OM52A54E●When the lane markers are yellow (These may be more difficult for the sys-
tem to recognize compared to white markers.)
●When the lane markers are broken, Botts’ dots (raised pavement markers)
or stones
●When the lane markers are on a curb etc.
●When lane markers are obscured or partially obscured by sand, dirt, etc.
●When there are shadows on the road running parallel with lane markers, or
if a shadow covers the lane markers
●When driving on a particularly bright road surface, such as concrete
●When driving on a road surface that is bright due to reflected light
●When driving in a location where the light level changes rapidly, such as the
entrance to or exit from a tunnel
●When sunlight or the headlights of oncoming vehicles are shining directly
into the camera lens
●When driving on roads that are branching or merging
●When driving on a road surface that is wet due to rain, previous rainfall,
standing water, etc.
●When the vehicle experiences strong up-and-down motion such as when
driving on an extremely rough road or on a seam in the pavement
●When headlight brightness at nighttime is reduced due to dirt on the lenses,
or when the headlights are misaligned
●When driving on winding roads or roads that are uneven
●When driving on rough or unpaved roads
●When the windshield is dirty, or if raindrops, condensation or ice are adher-
ing to the windshield
●When the heater is blowing to the feet, the upper part of the windshield may
get fogged up and have a negative effect
●When cleaning the inside of the windshield, touching the lens or getting
glass cleaner on the lens may have a negative effect
■When changing the tires
Depending on the tires used, sufficient performance may not be maintainable.