sensor TOYOTA YARIS CROSS 2021 Workshop Manual

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4-5. Using the driving support systems
Vehicles with panoramic view monitor
*: 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.
 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.107, 113)
Approximate distance to obstacleBuzzer
Front center sensor:
200 cm to100 cm (6.6 ft. to 3.3 ft.)
Rear center sensor:
200 cm to 150 cm (6.6 ft. to 4.9 ft.)
Side sensor:
200 cm to 115 cm (6.6 ft. to 3.8 ft.)
Corner sensor:
200 cm to 60 cm (6.6 ft. to 2.0 ft.)
Does not sound (Display only)
Front center sensor:
100 cm to 60cm (3.3 ft. to 2.0 ft.)*
Rear center sensor:
150 cm to 60cm (4.9 ft. to 2.0 ft.)*
Side sensor:
115 cm to 60 cm (3.8 ft. to 2.0ft.)*
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 15cm (1.0 ft to 0.5 ft.)ContinuousLess than 15cm (0.5 ft.)

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4-5. Using the driving support systems
Driving
1Press / (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 power switch is turned
off.
The object warning function informs
the driver of the existence of
objects along the side of the vehi-
cle, using a display and buzzer, if
the objects are within the estimated
path of the vehicle.
Object
Calculated vehicle route
When the vehicle is moving, the side sensors or side cameras ca n detect
objects. While the vehicle is moving, if a detected object can no longer be
detected by the side sensors or side cameras, the location of t he object rel-
ative to the vehicle is estimated. If the object is determined to be in the esti-
mated path of the vehicle, the object warning function will ope rate.
Object warning function
(vehicles with panoramic
view monitor)

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4-5. Using the driving support systems
Object detected by side sensors or side cameras
1 The vehicle is stopped and objects along the sides of the vehicle are not
detected.
2 Objects are detected as the vehicle is moving.
3 Even though the objects are outside of the detection area of the side
sensors or side cameras, a warning is displayed and a buzzer so unds.
■Object warning function operating
conditions
●The Advanced Park is operating.
●The vehicle moves about 7 m (23.0 ft.) after the hybrid system is started.
●The R shift position is selected.
●After the D shift position has been selected, the vehicle has moved 7 m (23.0 ft.) or less.
●Camera switch has been pressed and the panoramic view monitor screen is
displayed.
●The front or rear sensor detects a sta-
tionary object.
■Detection of objects along the sides of the vehicle
●Objects along the sides of the vehicle are not instantaneously detected. The location of objects in relation to the
vehicle is estimated after they are first detected by the front or rear side sen-sors, or side cameras. Therefore, after
the power switch is changed to ON, even if an object is along the side of the vehicle, it may not be detected
until the vehicle has been driven a small amount and the side sensors or
side cameras completely scan the
areas along the sides of the vehicle.
●If a vehicle, person, animal, etc., is
detected by a side sensors or side cameras, but then leaves the detec-tion area of the side sensors or side
cameras, the system will assume the object has not moved.
WARNING
■Object warning function
In situations such as the following, the function may not operate correctly,
possibly leading to an accident. Pro- ceed carefully.

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4-5. Using the driving support systems
Driving
*: If equipped
WARNING
●When starting off shortly after the power switch is turned to ON and a
small vehicle or other object which cannot be detected by a front side sensor is next to the vehicle.
In the situation shown in the following
illustration, even if the vehicle starts
off, the vehicle on the left will not be
detected and the object warning func-
tion will not operate.
●When an object or person is in a position which cannot be detected
by the side sensors or side cam- eras.
●When, after the side sensors have completed scanning the areas along the sides of the vehicle, a
vehicle, person, or other object approaches the side of the vehicle and cannot be detected.
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.270)
■To ensure the system can oper- ate properly
 P. 2 7 1
System components

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4-5. Using the driving support systems
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.287) 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
turn on/off the function. ( P.107,
11 3 )
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.92) illumi- nates. (Each time the power 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.271)
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 1
Turning the RCTA function
on/off

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4-5. Using the driving support systems
●The vehicle speed is less than
approximately 15 km/h (9 mph).
●The approaching vehicle speed is
between approximately 8 km/h (5 mph) and 56 km/h (34 mph).
■Adjusting the buzzer volume
The buzzer volume can be adjusted on
the multi-information display.
Use the meter control switches to change settings. ( P.107, 113)
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 and hold
.
3 Press to select the volume.
Each time the switch is pressed, the vol-
ume level will change between 1, 2, and 3.
When the buzzer volume adjustment is
completed, press to return to the
previous screen.
■Muting a buzzer temporarily
A mute button will be displayed on the
multi-information display when a vehi-
cles or an object is detected. To mute
the buzzer, press .
The buzzers for the RCTA function and
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 power 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

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4-5. Using the driving support systems
Driving
●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
●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

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4-5. Using the driving support systems
●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
●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

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4-5. Using the driving support systems
Driving
*: If equipped
■Parking Support Brake func-
tion (static objects)
 P. 2 9 6
■Parking Support Brake func-
tion (rear-crossing vehicles)
 P. 2 9 9
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
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

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4-5. Using the driving support systems
The Parking Support Brake can be
enabled/disabled on the multi-infor-
mation display. All of the Parking
Support Brake functions (static
objects and rear-crossing vehicles)
are enabled/disabled simultane-
ously.
Use the meter control switches to
enable/disable the parking support
brake. ( P.107, 113)
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 .
WARNING
●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 power 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.)
Enabling/Disabling the Park-
ing Support Brake