2021 TOYOTA YARIS Owners Manual

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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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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

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4-5. Using the driving support systems
Driving
When the Parking Support Brake is dis-
abled, the PKSB OFF indicator (→P. 8 4 )
illuminates.
To re-enable the system when it was
disabled, select on the multi-infor-
mation display, select and then
On. If disabled using this method, the
system will not be re-enabled by turning
the engine switch off and then to ON.
If the engine output restriction con-
trol or brake control operates, a
buzzer will sound and a message
will be displayed on the multi-infor-
mation display and head-up display
(if equipped) to alert the driver.
Depending on the situation, engine out-
put restriction control will operate to
either limit acceleration or restrict out-
put as much as possible.
zEngine output restriction control
is operating (acceleration restric-
tion)
Acceleration greater than a certain
amount is restricted by the system.
Multi-information display: “Object
Detected Acceleration Reduced”
Head-up display (if equipped): No
warning displayed
PKSB OFF indicator: Not illuminated
Buzzer: Does not sound
zEngine output restriction control
is operating (output restricted as
much as possible)
The system has determined that stron-ger-than-normal brake operation is nec-
essary.
Multi-information display and head-up
display (if equipped): “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep
zBrake control is operating
The system determined that emer-
gency braking is necessary.
Multi-information display and head-up
display (if equipped): “BRAKE!”
PKSB OFF indicator: Not illuminated
Buzzer: Short beep
zVehicle stopped by system oper-
ation
The vehicle has been stopped by brake
control operation.
Multi-information display and head-up
display (if equipped): “Switch to Brake”
(If the accelerator pedal is not
depressed, “Press Brake Pedal” will be
displayed.)
PKSB OFF indicator: Illuminated
Buzzer: Short beep
If the Parking Support Brake deter-
mines that a collision with a
detected object is possible, the
engine output will be restricted to
restrain any increase in the vehicle
speed. (Engine output restriction
control: See figure 2.)
Additionally, if the accelerator pedal
continues to be depressed, the
brakes will be applied automatically
to reduce the vehicle speed. (Brake
control: See figure 3.)
Displays and buzzers for
engine output restriction
control and brake control
System overview

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zFigure 1: When the PKSB (Park-
ing Support Brake) is disabled
Engine output
Braking force
Time
z Figure 2: When engine output
restriction control operates
Engine output
Braking force
Time
Engine output restriction control
begins operating (System deter-
mines that possibility of collision
with detected object is high)
z Figure 3: When brake control
operates
Engine output
Braking force
Time
Engine output restriction control
begins operating (System deter-
mines that possibility of collision
with detected object is high)
Brake control begins operating
(System determines that possi-
bility of collision with detected
object is extremely high)
■If the Parking Support Brake has operated
If the vehicle is stopped due to operation
of the Parking Support Brake, the Park- ing Support Brake will be disabled and the PKSB OFF indicator will illuminate. If
the Parking Support Brake operates unnecessarily, brake control can be can-celed by depressing the brake pedal or
waiting for approximately 2 seconds for it to automatically be canceled. Then, the vehicle can be operated by depress-
ing the accelerator pedal.
■Re-enabling the Parking Support Brake
To re-enable the Parking Support Brake
when it is disabled due to operation of the Parking Support Brake, either enable the system again ( →P.252), or
turn the engine switch off and then back

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4-5. Using the driving support systems
Driving
to ON. Additionally, if the object
becomes no longer in the traveling
direction of the vehicle or if the traveling
direction of the vehicle changes (such
as changing from moving forward to
backing up, or from backing up to mov-
ing forward), the system will be re-
enabled automatically.
■If “PKSB Unavailable” is displayed
on the multi-information display
and the PKSB OFF indicator is on
If the vehicle is stopped due to operation
of the Parking Support Brake, the Park-
ing Support Brake will be disabled and
the PKSB OFF indicator will illuminate.
●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.
●If this message is displayed, a sensor
on the front or rear bumper may be
dirty. Clean the sensors and their sur-
rounding area on the bumpers.
●If this message continues to be dis-
played even after cleaning the sensor,
or is displayed even though the sen-
sor is clean, have the vehicle
inspected by any authorized Toyota
retailer or Toyota authorized repairer,
or any reliable repairer.
●Initialization may not have been per-
formed after a battery terminal was
disconnected and reconnected. Initial-
ize the system. (→P.255)
If this message continues to be dis-
played even after initialization, have
the vehicle inspected by any autho-
rized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
■If a battery terminal has been dis-
connected and reconnected
The system needs to be initialized. To initialize the system, drive the vehicle
straight ahead for 5 seconds or more at
a speed of approximately 35 km/h (22
mph) or more.

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4-5. Using the driving support systems
*: If equipped
This function will operate in situations such as the following if an object is
detected in the traveling direction of the vehicle.
■When traveling at a low speed and the brake pedal is not
depressed, or is depressed late
Parking Support Brake function (static objects)*
If the sensors detect a static object, such as a wall, in the traveling
direction of the vehicle and the system determines that a collision
may occur due to the vehicle suddenly moving forward due to an
accidental accelerator pedal operation, the vehicle moving the unin-
tended direction due to the wrong shift lever being selected, or
while parking or traveling at low speeds, the system will operate to
lessen the impact with the detected static object and reduce the
resulting damage.
Examples of function operation