sensor TOYOTA YARIS CROSS 2022 Workshop Manual

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4-5. Using the driving support systems
●The following situations may occur
during use. • Depending on the shape of the object and other factors, the detection dis-
tance may shorten, or detection may be impossible.• Detection may be impossible if static
objects draw too close to the sensor. • There will be a short delay between static object detection and display
(warning buzzer sounds). Even at low speeds, there is a possibility that the object will come within 30 cm (1.0 ft.)
before the display is shown and the warning buzzer sounds.• It might be difficult to hear the buzzer
due to the volume of the audio system or air flow noise of the air conditioning system.
• It may be difficult to hear the sound of this system due to the buzzers of other systems.
■Objects which the system may not
be properly detected
The shape of the object may prevent the sensor from detecting it. Pay particular
attention to the following objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials that absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections pro-
jecting outwards in the direction of your vehicle
■Situations in which the system may not operate properly
Certain vehicle conditions and the sur- rounding environment may affect the ability of a sensor to correctly detect
objects. Particular instances where this may occur are listed below.
●There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors will resolve this problem.)
●A sensor is frozen. (Thawing the area will resolve this problem.)
In especially cold weather, if a sensor
is frozen the sensor display may be
displayed abnormally, or objects, such as a wall, may not be detected.
●When a sensor or the area around a sensor is extremely hot or cold.
●On an extremely bumpy road, on an incline, on gravel, or on grass.
●When vehicle horns, vehicle detec-tors, motorcycle engines, air brakes of large vehicles, the clearance sonar of
other vehicles or other devices which produce ultrasonic waves are near the vehicle
●A sensor is coated with a sheet of spray or heavy rain.
●If objects draw too close to the sensor.
●Pedestrians that are hard to reflect ultrasonic waves (ex. skirts with gath-ers or frills).
●When objects that are not perpendicu-lar to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the detection range.
●Strong wind is blowing
●When driving in inclement weather such as fog, snow or a sandstorm
●When an object that cannot be detected is between the vehicle and a detected object
●If an object such as a vehicle, motor-cycle, bicycle or pedestrian cuts in
front of the vehicle or runs out from the side of the vehicle
●If the orientation of a sensor has been changed due to a collision or other impact
●When equipment that may obstruct a

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sensor is installed, such as a towing
eyelet, bumper protector (an addi- tional trim strip, etc.), bicycle carrier, or snow plow
●If the front of the vehicle is raised or lowered due to the carried load
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●When a tire chains, compact spare tire or an emergency tire puncture repair kit is used
■Situations in which the system may
operate even if there is no possibil- ity of a collision
In some situations, such as the follow-
ing, the system may operate even though there is no possibility of a colli-sion.
●When driving on a narrow road
●When driving toward a banner, flag, low-hanging branch or boom barrier (such as those used at railroad cross-
ings, toll gates and parking lots)
●When there is a rut or hole in the sur-
face of the road
●When driving on a metal cover (grat-
ing), such as those used for drainage ditches
●When driving up or down a steep slope
●If a sensor is hit by a large amount of water, such as when driving on a flooded road
●There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors
will resolve this problem.)
●A sensor is coated with a sheet of
spray or heavy rain
●When driving in inclement weather
such as fog, snow or a sandstorm
●When strong winds are blowing
●When vehicle horns, vehicle detec- tors, motorcycle engines, air brakes of
large vehicles, the clearance sonar of other vehicles or other devices which produce ultrasonic waves are near the
vehicle
●If the front of the vehicle is raised or
lowered due to the carried load
●If the orientation of a sensor has been
changed due to a collision or other impact
●The vehicle is approaching a tall or curved curb
●Driving close to columns (H-shaped steel beams, etc.) in multi-story park-ing garages, construction sites, etc.
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is malfunctioning
●On an extremely bumpy road, on an incline, on gravel, or on grass
●When a tire chains, compact spare tire or an emergency tire puncture repair kit is used

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■Detection range of the sensors
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 60 cm (2.0 ft.)
The diagram shows the detection range
of the sensors. Note that the sensors
cannot detect objects that are
extremely close to the vehicle.
The range of the sensors may change
depending on the shape of the object,
etc.
■The distance and buzzer
*: Automatic buzzer mute function is enabled. ( P.282)
■Buzzer operation and dis-
tance to an object
A buzzer sounds when the sensors
are operating.
 The buzzer beeps faster as the
vehicle approaches an object.
When the vehicle comes within
approximately 30 cm (1.0 ft.) of
the object, the buzzer sounds
continuously.
 When 2 or more sensors simulta-
neously detect a static object,
the buzzer sounds for the near-
est object.
Sensor detection display,
object distance
Approximate distance to obstacleBuzzer
Front sensor:
100 cm to 60 cm (3.3 ft. to 2.0 ft.)*
Rear sensor:
150 cm to 60 cm (4.9 ft. to 2.0 ft.)*
Slow
60 cm to 45 cm (2.0 ft. to 1.5 ft.)*Medium
45 cm to 30 cm (1.5 ft. to 1.0 ft.)*Fast
30 cm to 15 cm (1.0 ft. to 0.5 ft.)ContinuousLess than 15 cm (0.5 ft.)

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Even when the sensors are oper-
ating, the buzzer will be muted in
some situations. (automatic
buzzer mute function)
■Adjusting the buzzer volume
The buzzer volume can be adjusted
on the multi-information display.
Use the meter control switches to
change settings. ( P.95, 101)
1 Press / (4.2-inch display)
or / (7-inch display) of
the meter control switch to
select .
2 Press / (4.2-inch display)
or / (7-inch display) of
the meter control switch to
select and then press and
hold .
3 Select the volume and then
press .
Each time the switch is pressed, the volume level will change between 1, 2, and 3.
■Muting a buzzer
A mute button will be displayed on
the multi-information display when
an object is detected. To mute the
buzzer, press .
The buzzers for the Toyota parking
assist-sensor and RCTA function (if
equipped) will be muted simultane-
ously.
Mute will be canceled automatically
in the following situations:
 When the shift lever is changed.
 When the vehicle speed exceeds
a certain speed.
 When there is a malfunction in a
sensor or the system is tempo-
rarily unavailable.
 When the operating function is
disabled manually.
 When the engine switch is turned
off.

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4-5. Using the driving support systems
*: If equipped
Meter control switches
Turn the RCTA function on/off.
Outside rear view mirror indica-
tors
When a vehicle approaching from the
right or left at the rear of the vehicle is
detected, both outside rear view mirror
indicators will flash.
Navigation/multimedia system
display (if equipped)
If a vehicle approaching from the right
or left at the rear of the vehicle is
detected, the RCTA icon ( P.285) for
the detected side will be displayed.
RCTA buzzer
If a vehicle approaching from the right
or left at the rear of the vehicle is
detected, a buzzer will sound.
Use the meter control switches to
RCTA (Rear Crossing
Traffic Alert)*
The RCTA function uses the
BSM radar sensors installed
on the inner side of the posi-
tion above the rear bumper.
This function is intended to
assist the driver in checking
areas that are not easily visible
when backing up.
WARNING
■Cautions regarding the use of the system
There is a limit to the degree of recog- nition 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. ( P.272)
■To ensure the system can oper-
ate properly
 P. 2 7 3
System components
Turning the RCTA function
on/off

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Driving
turn on/off the function. (P.95,
101)
1 Press / (4.2-inch display)
or / (7-inch display) of
the meter control switch to
select .
2 Press / (4.2-inch display)
or / (7-inch display) of
the meter control switch to
select “RCTA” and then press
.
When the RCTA function is disabled, the RCTA OFF indicator ( P.82) illumi-
nates. (Each time the engine switch is turned off then changed to ON, the RCTA function will be enabled automat-
ically.)
■Outside rear view mirror indicator visibility
When under strong sunlight, the outside
rear view mirror indicator may be difficult to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises, such as high audio volume.
■When “RCTA Unavailable See Owner’s Manual” is shown on the
multi-information display
The sensor voltage has become abnor- mal, or water, snow, mud, etc., may be
built up in the vicinity of the sensor area of the position above the rear bumper. ( P.273)
Removing the water, snow, mud, etc., from the vicinity of the sensor area should return it to normal. Also, the sen-
sor may not function normally when used in extremely hot or cold weather.
■When “RCTA Malfunction Visit Your
Dealer” is shown on the multi-infor- mation display
There may be a sensor malfunction or
misaligned. Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer.
■Radar sensors
 P. 2 7 3
■Operation of the RCTA func-
tion
The RCTA function uses radar sen-
sors to detect vehicles approaching
from the right or left at the rear of
the vehicle and alerts the driver of
the presence of such vehicles by
flashing the outside rear view mirror
indicators and sounding a buzzer.
Approaching vehicles
Detection areas
■RCTA icon display (vehicles
with navigation/multimedia
system)
When a vehicle approaching from
the right or left at the rear of the
vehicle is detected, the following
will be displayed on the naviga-
RCTA function

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Driving
Toyota parking assist-sensor will be
muted simultaneously.
Mute will be canceled automatically in
the following situations:
●When the shift lever is changed.
●When the vehicle speed exceeds a certain speed.
●When there is a malfunction in a sen-sor or the system is temporarily
unavailable.
●When the operating function is dis-
abled manually.
●When the engine switch is turned off.
■Conditions under which the system
will not detect a vehicle
The RCTA function is not designed to detect the following types of vehicles
and/or objects.
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking
space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
●Guardrails, walls, signs, parked vehi-
cles and similar stationary objects*
●Small motorcycles, bicycles, pedestri-
ans, etc.*
●Vehicles moving away from your vehi- cle
●Vehicles approaching from the park-
ing spaces next to your vehicle*
●The distance between the sensor and approaching vehicle gets too close*: Depending on conditions, detection of
a vehicle and/or object may occur.
■Situations in which the system may
not operate properly
The RCTA function may not detect vehi- cles correctly in the following situations:
●When the sensor is misaligned due to a strong impact to the sensor or its
surrounding area
●When mud, snow, ice, a sticker, etc.,
is covering the sensor or surrounding area on the position above the rear bumper
●When driving on a road surface that is wet with standing water during bad
weather, such as heavy rain, snow, or fog
●When multiple vehicles are approach-ing with only a small gap between each vehicle
●When a vehicle is approaching at high speed
●When equipment that may obstruct a sensor is installed, such as a towing
eyelet, bumper protector (an addi- tional trim strip, etc.), bicycle carrier, or snow plow
●When backing up on a slope with a sharp change in grade
●When backing out of a sharp angle parking spot

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●When towing a trailer
●When there is a significant difference in height between your vehicle and
the vehicle that enters the detection area
●When a sensor or the area around a sensor is extremely hot or cold
●If the suspension has been modified or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the detec-tion area
■Situations in which the system may operate even if there is no possibil-ity of a collision
Instances of the RCTA function unnec- essary detecting a vehicle and/or object may increase in the following situations:
●When the parking space faces a street
and vehicles are being driven on the street
●When the distance between your vehi-cle and metal objects, such as a guardrail, wall, sigh, or parked vehicle,
which may reflect electrical waves toward the rear of the vehicle, is short
●When equipment that may obstruct a sensor is installed, such as a towing eyelet, bumper protector (an addi-
tional trim strip, etc.), bicycle carrier, or snow plow
●When a vehicle passes by the side of your vehicle
●When a detected vehicle turns while approaching the vehicle

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●When there are spinning objects near
your vehicle such as the fan of an air conditioning unit
●When water is splashed or sprayed toward the rear bumper, such as from a sprinkler
●Moving objects (flags, exhaust fumes, large rain droplets or snowflakes, rain
water on the road surface, etc.)
●When the distance between your vehi-
cle and a guardrail, wall, etc., that enters the detection area is short
●Gratings and gutters
●When a sensor or the area around a
sensor is extremely hot or cold
●If the suspension has been modified
or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
*: If equipped
■Parking Support Brake func-
tion (static objects)
 P. 2 9 4
■Parking Support Brake func-
tion (rear-crossing vehicles)
 P. 2 9 7
PKSB (Parking Support
Brake)*
The Parking Support Brake
system consists of the follow-
ing functions that operate
when driving at a low speed or
backing up, such as when
parking. When the system
determines that the possibility
of a collision with a detected
object is high, a warning oper-
ates to urge the driver to take
evasive action. If the system
determines that the possibility
of a collision with a detected
object is extremely high, the
brakes are automatically
applied to help avoid the colli-
sion or help reduce the impact
of the collision.
PKSB (Parking Support
Brake) system

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WARNING
■Cautions regarding the use of the system
Do not overly rely on the system, as doing so may lead to an accident.
Always drive while checking the
safety of the surroundings of the vehi- cle.
Depending on the vehicle and road
conditions, weather, etc., the system may not operate.
The detection capabilities of sensors
and radars are limited. Always drive while checking the safety of the sur-roundings of the vehicle.
●The driver is solely responsible for safe driving. Always drive carefully,
taking care to observe your sur- roundings. The Parking Support Brake system is designed to pro-
vide support to lessen the severity of collisions. However, it may not operate in some situations.
●The Parking Support Brake system is not designed to stop the vehicle
completely. Additionally, even if the system has stopped the vehicle, it is necessary to depress the brake
pedal immediately as brake control will be canceled after approximately 2 seconds.
●It is extremely dangerous to check the system operations by intention-
ally driving the vehicle into the direction of a wall, etc. Never attempt such actions.
■When to disable the Parking Sup-port Brake
In the following situations, disable the Parking Support Brake as the system may operate even though there is no
possibility of a collision.
●When inspecting the vehicle using
a chassis roller, chassis dynamo or free roller
●When loading the vehicle onto a boat, truck or other transport vessel
●If the suspension has been modi-fied or tires of a size other than specified are installed
●If the front of the vehicle is raised or lowered due to the carried load
●When equipment that may obstruct a sensor is installed, such as a tow-
ing eyelet, bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow
●When using automatic car washing devices
●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 a tire chains, compact spare
tire or an emergency tire puncture repair kit is used
NOTICE
■If “PKSB Unavailable” is dis-
played on the multi-information display and the PKSB OFF indi-cator is on
If this message is displayed immedi- ately after the engine switch is changed to ON, operate the vehicle
carefully, paying attention to your sur- roundings. It may be necessary to drive the vehicle for a certain amount
of time before the system returns to normal. (If the system is not return to normal after driving for a while, clean
the sensors and their surrounding area on the bumpers.)