sensor TOYOTA YARIS 2017 Owner's Manual

2384-5. 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 surface
• 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.

2394-5. Toyota Safety Sense
4
Driving
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■ If the PCS warning light flashes or illuminates
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. 314, 324)
• 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 dealer
or repairer, or another duly qualifi ed and equipped professional immediately.
■ If VSC is disabled
● If TRC and VSC are disabled (P. 267), the pre-crash brake assist and pre-
crash braking functions are also disabled. However, the pre-crash warning
function will still operate.
● The PCS warning light illuminates.

2404-5. Toyota Safety Sense
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LDA (Lane Depar ture Aler t)
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 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).
: If equipped
Summary of function
Turning the LDA system on

2424-5. Toyota Safety Sense
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■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 sy stem 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 immediatel y available. When the temperature in
the cabin decreases and the temperature around the front sensor ( P. 240)
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
● 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

245
4
4-5. Toyota Safety Sense
Driving
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Automatic High Beam
Push the lever away from you
with the headlight switch in
or position.
Press the Automatic High
Beam switch.
The Automatic High Beam indica-
tor will come on green when the
headlights are turned on automati-
cally to indicate that the system is
active.
: If equipped
The Automatic High Beam uses an in-vehicle front sensor to
assess the brightness of streetlights, the lights of oncoming and
preceding vehicles, etc., and automatically turns high beam on
or off as necessary.
Activating the Automatic High Beam system
1
2

2474-5. Toyota Safety Sense
4
Driving
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■Switching to high beam
Press the Automatic High
Beam switch.
The Automatic High Beam indi-
cator will turn off and the head-
light high beam indicator will
turn on.
Press the switch to activate the
Automatic High Beam system
again.
■ The Automatic High Beam can be operated when
Vehicles without a smart entry & start system
The engine switch is in the “ON” position.
Vehicles with a smart entry & start system
The engine switch is in IGNITION ON mode.
■ Front sensor detection information
● High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut in front of by another
• When oncoming or preceding vehicles are hidden from sight due to
repeated curves, road divi ders or roadside trees
● High beam may be turned off if an oncoming vehicle that is using fog lights
without using the headlights is detected.
● House lights, street lights, red traffic signals, and illuminated billboards or
signs may cause the high beam to turn off.
● The following factors may affect the amount of time taken to turn high beam
on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and
preceding vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle only has operational lights on one
side
• When a oncoming or preceding vehi cle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface,
etc.)
• The number of passengers and amount of luggage

2484-5. Toyota Safety Sense
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● High beam may be turned on or off when unexpected by the driver.
● In the situations below, the system may not be able to correctly detect the surrounding brightness levels, and may flash or expose nearby pedestrians to the high beam. Therefore, you shoul d consider turning the high beams on or off manually rather than relying on the Automatic High Beam system.
• In bad weather (rain, snow, fog, sandstorms, etc.) • The windshield is obscured by fog, mist, ice, dirt, etc.• The windshield is cracked or damaged.• The front sensor is deformed or dirty. • The front sensor temperature is extremely high. • Surrounding brightness levels are equal to those of headlights, tail lightsor fog lights.• Vehicles ahead have headlights or tail lights that are either switched off,dirty, are changing color, or are not aimed properly.• When driving through an area of intermittently changing brightness anddarkness. • When frequently and repeatedly driving ascending/descending roads, or roads with rough, bumpy or uneven surfaces (such as stone-pavedroads, gravel tracks, etc.).• When frequently and repeatedly taking curves or driving on a windingroad.• There is a highly reflective object ahead of the vehicle, such as a sign or a mirror. • The back of a vehicle ahead is highly reflective, such as a container on atruck.• The vehicle’s headlights are damaged or dirty.• The vehicle is listing or titling, due to a flat tire, a trailer being towed, etc.• The driver believes that the high beam may be causing problems or dis- tress to other drivers or pedestrians nearby.
■ If the Automatic High Beam indicator comes on in yellow
It may indicate a malfunction in the system. Contact any authorized Toyota dealer or repairer, or another duly qualified and equipped professional.
WARNING
■ Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning high beam on or off manually if nec-
essary.
NOTICE
■ Notes when using the Automatic High Beam system
Observe the following to ensure that the Automatic High Beam functions
correctly.
● Do not overload the vehicle.
● Do not modify the vehicle.

3517-1. Maintenance and care
7
Maintenance and care
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■ Aluminum wheels (if equipped)
● Remove any dirt immediately by using a neutral detergent. Do not use hard
brushes or abrasive cleaners. Do not use strong or harsh chemical clean-
ers.
Use the same mild detergent and wax as used on the paint.
● Do not use detergent on the wheels when they are hot, for example after
driving for long distance in the hot weather.
● Wash detergent from the wheels immediately after use.
● To preserve the wheels luster, do not allow hot water, such as from steam
cleaning, to contact them directly.
■ Bumpers
Do not scrub with abrasive cleaners.
WARNING
■ When cleaning the windshield (vehicles with a rain-sensing windshield
wiper)
• When the upper part of the windshield where the raindrop sensor is
located is touched by hand
• When a wet rag or similar is held close to the raindrop sensor
• If something bumps against the windshield
• If you directly touch the raindrop sensor body or if something bumps
into the raindrop sensor
● Installation area of front sensor on windshield:P. 225
■ When washing the vehicle
Do not apply water to the inside of the engine compartment. Doing so may
cause the electrical components etc. to catch fire.
■ Precautions regarding the exhaust pipes
Exhaust gases cause the exhaust pipes to become quite hot.
When washing the vehicle, be careful not to touch the pipes until they have
cooled sufficiently, as touching hot exhaust pipes can cause burns.
● Set the wiper switch to off.
If the wiper switch is in “AUTO”, the
wiper may operate unexpectedly in the
following situations, and may result in
hands being caught or other serious
injuries and cause damage to the wiper
blades.
Off

3557-1. Maintenance and care
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Maintenance and care
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NOTICE
■Cleaning detergents
● Do not use the following types of detergent, as they may discolor the vehi-
cle interior or cause streaks or damage to painted surfaces:
• Non-seat portions: Organic substances such as benzene or gasoline,
alkaline or acidic solutions, dye, and bleach
• Seats: Alkaline or acidic solutions, such as thinner, benzene, and alco-
hol
● Do not use polish wax or polish cleaner. The instrument panel’s or other
interior part’s painted surface may be damaged.
■ Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of
leather surfaces:
● Remove any dust or dirt from leather surfaces immediately.
● Do not expose the vehicle to direct sunlight for extended periods of time.
Park the vehicle in the shade, especially during summer.
● Do not place items made of vinyl, plastic, or containing wax on the uphol-
stery, as they may stick to the leather surface if the vehicle interior heats
up significantly.
■ Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes
into contact with electrical components such as the audio system above or
under the floor of the vehicle. Water may also cause the body to rust.
■ When cleaning the inside of the windshield (vehicles with front sensor)
Be careful not to touch the front sensor ( P. 222).
If the camera is accidentally scratched or hit, PCS, LDA and Automatic High
Beam may not operate properly or may cause a malfunction.
■ Cleaning the inside of the rear window
● Do not use glass cleaner to clean the rear window, as this may cause
damage to the rear window defogger heater wires. Use a cloth dampened
with lukewarm water to gently wipe the window clean. Wipe the window in
strokes running parallel to the heater wires.
● Be careful not to scratch or damage the heater wires.

4418-2. Steps to take in an emergency
8
When trouble arises
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PCS warning light*2
When the warning light flashes (and a buzzer sounds):
Indicates a malfunction in the PCS (Pre-Crash Safety sys-
tem)
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
When the warning light illuminates:
Indicates that the PCS (Pre-Crash Safety system) is tem-
porarily unavailable, possibly due to either of the following:
• The part of the windshield around the front sensor being
dirty, fogged up or covered with condensation, ice, stick-
ers, etc.
 Clear the dirt, fog, condensation, ice, stickers, etc.
( P. 224)
• Front sensor temperature being outside of its opera-
tional range
 Wait for a while until the area around the front sensor
has cooled down sufficiently.
When the warning light is illuminated:
Either the VSC (Vehicle Stability Control) system or PCS
(Pre-Crash Safety system) is disabled or both are dis-
abled.
 To enable the PCS, enable both the VSC system and
PCS. ( P. 224, 267)
Slip indicator*2
Indicates a malfunction in:
• The VSC system;
• The TRC system.
 Have the vehicle inspected by any authorized Toyota
dealer or repairer, or another duly qualified and
equipped professional immediately.
Warning lightWarning light/Details/Actions