2021 TOYOTA YARIS engine

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-5. Using the driving support systems
■The system can be operated when
●The engine switch is in ON.
●Toyota parking assist-sensor function
is on.
●The vehicle speed is less than about
10 km/h (6 mph).
●A shift lever other than P is selected.
●Steering wheel is turned approxi- mately 90° or more (Front side sen-
sors, rear side sensors) (if equipped)
■If “Clean Parking Assist Sensor” is displayed on the multi-information display
A sensor may be covered with water drops, ice, snow, dirt, etc. Remove the water drops, ice, snow, dirt, etc., from
the sensor to return the system to nor- mal.
Also, due to ice forming on a sensor at
low temperatures, a warning message may be displayed or the sensor may not
be able to detect an object. Once the ice melts, the system will return to normal.
■Sensor detection information
The following situations may occur
during use.
●The sensors may be able to only
detect objects near the front and rear bumpers.
●Depending on the shape of the object and other factors, the detection dis-tance may shorten, or detection may
be impossible.
●If an object is extremely close to a
sensor, it may not be detected.
WARNING
●The front or rear bumper or a sen- sor receives a strong impact.
●A non-genuine Toyota suspension (lowered suspension, etc.) is
installed.
●Towing eyelets are installed.
●A backlit license plate is installed.
■When using Toyota parking assist-sensor
In the following situations, the system
may not function correctly due to a sensor malfunction, etc. Have the vehicle checked by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●The Toyota parking assist-sensor operation display flashes or shows continuously, and a beep sounds
when no objects are detected.
●If the area around a sensor collides
with something, or is subjected to strong impact.
●If the bumper or grille collides with something.
●If the display flashes or is displayed continuously and a buzzer does not sound, except when the mute func-
tion has been turned on.
●If a display error occurs, first check
the sensor. If the error occurs even when there is no ice, snow or mud on the sen-
sor, it is likely that the sensor is mal- functioning.
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.
●When using a high pressure washer to wash the vehicle, do not spray the sensors directly, as doing
so may cause a sensor to malfunc- tion.
●When using steam to clean the vehicle, do not direct steam too close to the sensors as doing so
may cause a sensor to malfunction.

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4-5. Using the driving support systems
Driving
●There will be a short delay between
object detection and display. Even at low speeds, there is a possibility that the object will come within the sen-
sor’s detection areas before the dis- play is shown and the warning beep 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 buzzer if buzzers for other systems are sound-ing.
■Conditions under which the func-
tion may not function correctly
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.
●A sensor is covered in any way.
●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.
●The vicinity of the vehicle is noisy due
to vehicle horns, motorcycle engines, air brakes of large vehicles, or other loud noises producing ultrasonic
waves.
●There is another vehicle equipped
with parking assist sensors in the vicinity.
●A sensor is coated with a sheet of spray or heavy rain.
●If a sensor is hit by a large amount of water, such as when driving on a
flooded road.
●If the vehicle is significantly tilted.
●The vehicle is approaching a tall or curved curb.
●If objects draw too close to the sensor.
■Objects which 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
People may not be detected if they are wearing certain types of clothing.
■Detection range of the sensors
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Sensor detection display,
object distance

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4-5. Using the driving support systems
Driving
3Select 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:
z When the shift lever is changed.
z When the vehicle speed exceeds
a certain speed.
z When there is a malfunction in a
sensor or the system is tempo-
rarily unavailable.
z When the operating function is
disabled manually.
z When the engine switch is turned
off.
*: If equipped
RCTA (Rear Crossing
Traffic Alert)*
The RCTA function uses the
BSM rear side radar sensors
installed behind 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 function
The driver is solely responsible for safe driving. Always drive safely, tak-ing care to observe your surround-
ings.
The RCTA function is only a supple- mentary function which alerts the
driver that a vehicle is approaching from the right or left at the rear of the vehicle. As the RCTA function may
not function correctly under certain conditions, the driver’s own visual confirmation of safety is necessary.
Over reliance on this function may lead to an accident resulting death or serious injury.
System components

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4-5. Using the driving support systems
Meter control switches
Turning 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.
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.94,
100)
1Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select .
2Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select “RCTA” and then press
.
When the RCTA function is disabled,
the RCTA OFF indicator (→P.84) 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 if the
audio system volume is high.
■When “Rear Cross Traffic Alert
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.238)
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 “Rear Cross Traffic Alert Mal-
function Visit Your Dealer” is
shown on the multi-information
display
There may be a sensor malfunction of
misaligned. Have the vehicle inspected
by any authorized Toyota retailer or
Toyota authorized repairer, or any reli-
able repairer.
■Rear side radar sensors
→P. 2 3 8
■Operation of the RCTA func-
tion
The RCTA function uses rear side
radar sensors to detect vehicles
approaching from the right or left at
the rear of the vehicle and alerts
the driver of the presence of such
Turning the RCTA function
on/off
RCTA function

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YARIS(HB) Owner's Manual_Europe_MK0001_en
4-5. Using the driving support systems
Driving
vehicles by flashing the outside
rear view mirror indicators and
sounding a buzzer.
Approaching vehicles
Detection areas of approaching
vehicles
■RCTA function detection areas
The areas that vehicles can be
detected in are outlined below.
The buzzer can alert the driver of
faster vehicles approaching from
farther away.
Example:
■The RCTA function is operational
when
The RCTA function operates when all of the following conditions are met:
●The engine switch is in ON.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than approximately 8 km/h (5 mph).
●The approaching vehicle speed is between approximately 8 km/h (5
mph) and 28 km/h (18 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.94, 100)
1 Press / (vertical display) or
/ (horizontal display) of the
meter control switch to select .
2 Press / (vertical display) or
/ (horizontal display) of the
meter control switch to select
“RCTA” and then press and hold
.
3 Select the volume and then press
.
Each time the switch is pressed, the vol- ume level will change between 1, 2 and
Approaching vehi-
cle speed
Approximate
alert distance
28 km/h (18 mph)
(fast)20 m (65 ft.)
8 km/h (5 mph)
(slow)5.5 m (18 ft.)

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4-5. Using the driving support systems
3.
■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 Toyota parking
assist-sensor and RCTA function 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 RCTA function 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*
*: Depending on the conditions, detec-
tion of a vehicle and/or object may
occur.
■Conditions under which the RCTA function may not function correctly
●The RCTA function may not detect vehicles correctly in the following situ-ations:
• When a sensor is misaligned due to a strong impact to the sensor or its sur-rounding area
• When mud, snow, ice, a sticker, etc., is covering a sensor or its surrounding area on 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 • If a vehicle is approaching the rear of your vehicle rapidly
• When a towing eyelet is installed to the rear of the vehicle.• When backing up on a slope with a
sharp change in grade
• When backing out of a shallow angle
parking spot

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4-5. Using the driving support systems
Driving
• Immediately after the RCTA function
is turned on • Immediately after the engine is started with the RCTA function on
• When the sensors cannot detect a vehicle due to obstructions
●Instances of the RCTA function unnecessarily detecting a vehicle and/or object may increase in the fol-
lowing situations: • When a vehicle passes by the side of your vehicle
• 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, sign, or parked vehicle, which may reflect electrical waves toward the rear of the vehicle, is short
• When a towing eyelet is installed to the rear of the vehicle
*: If equipped
■Parking Support Brake func-
tion (static objects)
→ P. 2 5 6
■Parking Support Brake func-
tion (rear-crossing vehicles)
→ P. 2 6 2
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 a collision
with a detected object is high,
a warning operates 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 automati-
cally applied to help avoid the
collision or help reduce the
impact of the collision.
PKSB (Parking Support
Brake) system

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YARIS(HB) Owner's Manual_Europe_MK0001_en
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.94, 100)
1 Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select .
2 Press / (vertical display)
or / (horizontal display)
of the meter control switch to
select and then press .
WARNING
■Limitations of the Parking Sup- port Brake 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.
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 does not return to normal after driving for a while, clean the sensors and their surround-
ing area on the bumpers.)
Enabling/Disabling the Park-
ing Support Brake