2021 TOYOTA YARIS sensor

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-3. Operating the lights and wipers
Driving
• When the windshield is obscured by
fog, mist, ice, dirt, etc. • When the windshield is cracked or damaged
• When the camera sensor is deformed or dirty• When the temperature of the camera
sensor is extremely high • When the surrounding brightness level is equal to that of headlights, tail
lights or fog lights • When headlights or tail lights of vehi-cles ahead are turned off, dirty, chang-
ing color, or not aimed properly • When the vehicle is hit by water, snow, dust, etc., from a preceding
vehicle • When driving through an area of inter-mittently changing brightness and
darkness • When frequently and repeatedly driv-ing ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads, gravel roads, etc.)
• When frequently and repeatedly tak- ing curves or driving on a winding road
• When there is a highly reflective object ahead of the vehicle, such as a sign or mirror
• When the back of a preceding vehicle is highly reflective, such as a con-tainer on a truck
• When the vehicle’s headlights are damaged or dirty, or are not aimed properly
• When the vehicle is listing or titling due to a flat tire, a trailer being towed, etc.
• When the headlights are changed between the high beams and low beams repeatedly in an abnormal
manner • When the driver believes that the high beams may be flashing or dazzling
pedestrians or other drivers
■Switching to the high beams
Push the lever away from you.
The Automatic High Beam indicator will
turn off and the high beam indicator will
turn on.
Pull the lever to its original position to
activate the Automatic High Beam sys-
tem again.
■Switching to the low beams
Press the Automatic High Beam
switch.
The Automatic High Beam indicator will
turn off.
Press the switch to activate the Auto-
matic High Beam system again.
■Temporarily switching to the
low beams
Pull the lever toward you and then
Turning the high beams
on/off manually

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4-3. Operating the lights and wipers
wiper operation
4 Temporary operation
Wiper intervals can be adjusted
when intermittent operation is
selected.
5 Increases the intermittent wind-
shield wiper frequency
6 Decreases the intermittent wind-
shield wiper frequency
7 Washer/wiper dual oper-
ation
Pulling the lever operates the wipers
and washer.
Wipers will automatically operate a cou-
ple of times after the washer squirts.
Rain-sensing windshield wipers
1 Rain-sensing windshield
wiper operation
2 Low speed windshield wiper
operation
3 High speed windshield
wiper operation
4 Temporary operation
When “AUTO” is selected, the wipers
will operate automatically when the
sensor detects falling rain. The system
automatically adjusts wiper timing in
accordance with rain volume and vehi-
cle speed.
When “AUTO” is selected, the sen-
sor sensitivity can be adjusted as
follows by turning the switch ring.

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4-3. Operating the lights and wipers
Driving
5Increases the rain-sensing wind-
shield wiper sensitivity
6 Decreases the rain-sensing
windshield wiper sensitivity
7 Washer/wiper dual oper-
ation
Pulling the lever operates the wipers
and washer.
Wipers will automatically operate a cou-
ple of times after the washer squirts.
■The windshield wiper and washer can be operated when
The engine switch is in ON.
■Effects of vehicle speed on wiper operation (vehicles with rain-sens-ing windshield wipers)
Vehicle speed affects the Intermittent wiper interval.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●The raindrop sensor judges the amount of raindrops.
An optical sensor is adopted. It may
not operate properly when sunlight from the rising or setting of the sun intermittently strikes the windshield, or
if bugs etc. are present on the wind- shield.
●If the wiper is turned to AUTO mode while the engine switch is in ON, the wipers will operate once to show that
AUTO mode is activated.
●If the temperature of the raindrop sen-
sor is 85°C (185°F) or higher, or -15°C (5°F) or lower, automatic operation may not occur. In this case, operate
the wipers in any mode other than AUTO mode.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the windshield washer fluid reservoir.
WARNING
■Caution regarding the use of windshield wipers in AUTO mode (vehicles with rain-sensing wind-
shield wipers)
The windshield wipers may operate unexpectedly if the sensor is touched
or the windshield is subject to vibra- tion in AUTO mode. Take care that your fingers or anything else do not
become caught in the windshield wip- ers.

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4-5. Using the driving support systems
4-5.Using the d riving s upport sy ste ms
*: If equipped
■PCS (Pre-Collision System)
→ P. 1 9 3
■LTA (Lane Tracing Assist)
→ P. 2 0 3
■AHB (Automatic High Beam)
→ P. 1 7 7
■RSA (Road Sign Assist) (if
equipped)
→ P. 2 2 6
■Dynamic radar cruise control
→ P. 2 1 3
Two types of sensors, located
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist
systems.
Radar sensor
Front camera
Toyota Safety Sense*
The Toyota Safety Sense con-
sists of the following drive
assist systems and contrib-
utes to a safe and comfortable
driving experience:
Driving assist system
WARNING
■Toyota Safety Sense
The Toyota Safety Sense is designed to operate under the assumption that the driver will drive safely, and is
designed to help reduce the impact to the occupants and the vehicle in the case of a collision or assist the driver
in normal driving conditions. As there is a limit to the degree of rec-ognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The driver is always responsible for paying
attention to the vehicle’s surroundings and driving safely.
Sensors
WARNING
■To avoid malfunction of the radar sensor
Observe the following precautions.
Otherwise, the radar sensor may not operate properly, possibly leading to an accident resulting in death or seri-
ous injury.

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4-5. Using the driving support systems
Driving
WARNING
●Keep the radar sensor and the radar sensor cover clean at all
times.
Radar sensor
Radar sensor cover
If the front of the radar sensor or the
front or back of the radar sensor
cover is dirty or covered with water
droplets, snow, etc., clean it.
Clean the radar sensor and radar
sensor cover with a soft cloth to avoid
damaging them.
●Do not attach accessories, stickers
(including transparent stickers) or other items to the radar sensor, radar sensor cover or surrounding
area.
●Do not subject the radar sensor or
its surrounding area to a strong impact.If the radar sensor, front grille, or
front bumper has been subjected to a strong impact, have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
●Do not disassemble the radar sen-sor.
●Do not modify or paint the radar sensor or radar sensor cover.
●In the following cases, the radar sensor must be recalibrated. Con-tact any authorized Toyota retailer
or Toyota authorized repairer, or any reliable repairer for details.
• When the radar sensor or front
grille are removed and installed, or replaced
• When the front bumper is replaced
■To avoid malfunction of the front camera
Observe the following precautions. Otherwise, the front camera may not operate properly, possibly leading to
an accident resulting in death or seri- ous injury.
●Keep the windshield clean at all times.
• If the windshield is dirty or covered with an oily film, water droplets, snow, etc., clean the windshield.
• If a glass coating agent is applied to the windshield, it will still be neces-
sary to use the windshield wipers to remove water droplets, etc., from the area of the windshield in front of
the front camera.
• If the inner side of the windshield
where the front camera is installed is dirty, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.

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4-5. Using the driving support systems
driven for some time) and the normal operating conditions are detected, the mes-
sage will disappear and the system will become operational.
If the message does not disappear, contact any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
• When the temperature around the radar sensor is outside of the operational range,
such as when the vehicle is in the sun or in an extremely cold environment
• When the front camera cannot detect objects in front of the vehicle, such as when
driving in the dark, snow, or fog, or when bright lights are shining into the front
camera
• Depending on the conditions in the vicinity of the vehicle, the radar may judge the
surrounding environment can not be properly recognized. In that case, “Pre-Colli-
sion System Unavailable See Owner’s Manual” is displayed.

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4-5. Using the driving support systems
Driving
*: If equipped
The system can detect the follow-
ing (The detectable objects differs
depending on the function.):
zVehicles
zBicyclists
zPedestrians
■Pre-collision warning
When the system determines that
the possibility of a frontal collision is
high, a buzzer will sound and a
warning message will be displayed
on the multi-information display to
urge the driver to take evasive
action.
■Pre-collision brake assist
When the system determines that
the possibility of a frontal collision is
high, the system applies greater
braking force in relation to how
strongly the brake pedal is
depressed.
■Pre-collision braking
If the system determines that the
possibility of a frontal collision is
extremely high, the brakes are
automatically applied to help avoid
the collision or reduce the impact of
the collision.
■Emergency steering assist
If the system determines that the
possibility of a collision with a
pedestrian is high and the driver
has begun evasive maneuver or
PCS (Pre-Collision Sys-
tem)
*
The pre-collision system uses
a radar sensor and front cam-
era to detect objects (→P.193)
in front of the vehicle. When
the system determines that the
possibility of a frontal collision
with an object is high, a warn-
ing operates to urge the driver
to take evasive action and the
potential brake pressure is
increased to help the driver
avoid the collision. If the sys-
tem determines that the possi-
bility of a frontal collision with
an object is extremely high, the
brakes are automatically
applied to help avoid the colli-
sion or help reduce the impact
of the collision.
The pre-collision system can
be disabled/enabled and the
warning timing can be
changed. (→P.196)
Detectable objects
System functions

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4-5. Using the driving support systems
■Enabling/disabling the pre-col-
lision system
The pre-collision system can be
enabled/disabled on ( →P.422)
of the multi-information display.
The system is automatically enabled
each time the engine switch is turned to
ON.
If the system is disabled, the PCS
warning light will turn on and a
message will be displayed on the
multi-information display.
■Changing the pre-collision
warning timing
The pre-collision warning timing
can be changed on ( →P.422) of
the multi-information display.
The warning timing setting is retained
when the engine switch is turned off.
However, if the pre-collision system is
disabled and re-enabled, the operation
timing will return to the default setting
(middle).
WARNING
●When transporting the vehicle via truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift
with the engine running and the tires are allowed to rotate freely
●When inspecting the vehicle using a drum tester such as a chassis dynamometer or speedometer tes-
ter, or when using an on vehicle wheel balancer
●When a strong impact is applied to the front bumper or front grille, due to an accident or other reasons
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●When the vehicle is driven in a sporty manner or off-road
●When the tires are not properly inflated
●When the tires are very worn
●When tires of a size other than
specified are installed
●When tire chains are installed
●When a compact spare tire or an emergency tire puncture repair kit is
used
●If equipment (snow plow, etc.) that
may obstruct the radar sensor or front camera is temporarily installed to the vehicle
Changing settings of the
pre-collision system