2021 TOYOTA YARIS CROSS parking brake

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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

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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. 9 2 )
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 power switch off and then to ON.
If the hybrid system output restric-
tion control or brake control oper-
ates, a buzzer will sound and a
message will be displayed on the
multi-information display and head-
up display (if equipped) to alert the
driver.
Depending on the situation, hybrid sys-
tem output restriction control will oper-
ate to either limit acceleration or restrict
output as much as possible.
 Hybrid system output restriction
control is operating (accelera-
tion restriction)
Acceleration greater than a certain
amount is restricted by the system.
Multi-information display: “Object
Detected Ahead Speed Reduced”
Head-up display (if equipped): No
warning displayed
PKSB OFF indicator: Not illuminated
Buzzer: Does not sound
 Hybrid system 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
 Brake 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
 Vehicle 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
hybrid system output will be
restricted to restrain any increase in
the vehicle speed. (Hybrid system
output restriction control: See figure
2.)
Additionally, if the accelerator pedal
Display and buzzer for
hybrid system output
restriction control and brake
control
System overview

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4-5. Using the driving support systems
continues to be depressed, the
brakes will be applied automatically
to reduce the vehicle speed. (Brake
control: See figure 3.)
 Figure 1: When the PKSB (Park-
ing Support Brake) is not operat-
ing
Hybrid system output
Braking force
Time
 Figure 2: When hybrid system
output restriction control oper-
ates
Hybrid system output
Braking force
Time
Hybrid system output restriction
control begins operating (Sys-
tem determines that possibility
of collision with detected object
is high)
 Figure 3: When hybrid system
output restriction control and
brake control operates
Hybrid system output
Braking force
Time
Hybrid system output restriction
control begins operating (Sys-
tem determines 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-

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4-5. Using the driving support systems
Driving
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.292), or
turn the power switch off and then back 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.

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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 colli sion
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 position being selected, or
while parking or traveling at low speeds, the system will opera te to
lessen the impact with the detected static object and reduce th e
resulting damage.
Examples of function operation

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4-5. Using the driving support systems
Driving
■When the accelerator pedal is depressed excessively
■When the vehicle moves in the unintended direction due to the
wrong shift position being selected
 P. 2 7 5
Types of sensors
WARNING
■To ensure the system can oper- ate properly
 P. 2 7 7
■If the Parking Support Brake function (static objects) oper-
ates unnecessarily, such as at a railroad crossing
 P. 2 9 4
■Notes when washing the vehicle
 P. 2 7 7

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4-5. Using the driving support systems
■The Parking Support Brake func- tion (static object) will operate
when
The function will operate when the PKSB OFF indicator is not illuminated or
flashing ( P.92, 445) and all of the fol- lowing conditions are met:
●Hybrid system output restriction con-trol• The Parking Support Brake is
enabled. • The vehicle speed is approximately 15 km/h (9 mph) or less.
• There is a static object in the traveling direction of the vehicle and approxi-mately 2 to 4 m (6 to 13 ft.) away.
• The Parking Support Brake deter- mines that a stronger-than-normal brake operation is necessary to avoid
a collision.
●Brake control
• Hybrid system output restriction con- trol is operating.• The Parking Support Brake deter-
mines that an immediate brake opera- tion is necessary to avoid a collision.
■The Parking Support Brake func-tion (static objects) will stop oper-
ating when
The function will stop operating if any of the following conditions are met:
●Hybrid system output restriction con-
trol • The Parking Support Brake is dis-abled.
• The system determines that the colli- sion has become avoidable with nor-mal brake operation.
• The static object is no longer approxi- mately 2 to 4 m (6 to 13 ft.) away from the vehicle or in the traveling direction
of the vehicle.
●Brake control
• The Parking Support Brake is dis- abled.• Approximately 2 seconds have
elapsed since the vehicle was stopped by brake control.• The brake pedal is depressed after
the vehicle is stopped by brake con-
trol. • The static object is no longer approxi-mately 2 to 4 m (6 to 13 ft.) away from
the vehicle or in the traveling direction of the vehicle.
■Re-enabling the Parking Support Brake function (static objects)
 P. 2 9 5
■Detection range of the Parking Sup- port Brake function (static objects)
The detection range of the Parking Sup-
port Brake function (static objects) dif- fers from the detection range of the Toyota parking assist-sensor. ( P.280)
Therefore, even if the Toyota parking assist-sensor detects an object and pro-vides a warning, the Parking Support
Brake function (static objects) may not start operating.
■Objects which the system may not be properly detected
 P. 2 7 8
■Toyota parking assist-sensor buzzer
Regardless of whether the Toyota park-
ing assist-sensor function is enabled or not ( P.276), if the Parking Support Brake function (static objects) is enabled
( P.292), the front or rear sensors detect an object and brake control and hybrid system output restriction control
are performed, the Toyota parking assist-sensor buzzer will sound to notify the driver of the approximate distance to
the object.
■Situations in which the system may not operate properly
 P. 2 7 8
■Situations in which the system may
operate even if there is no possibil- ity of a collision
 P. 2 7 9

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4-5. Using the driving support systems
Driving
*: If equipped
This function will operate in situations such as the following if a vehicle is
detected in the traveling direction of the vehicle.
■When reversing, a vehicle is approaching and the brake pedal is not
depressed, or is depressed late
 P. 2 7 1
■The Parking Support Brake func- tion (rear-crossing vehicles) will
operate when
The function will operate when the PKSB OFF indicator is not illuminated or
flashing ( P.92, 445) and all of the fol- lowing conditions are met:
●Hybrid system output restriction con-trol• The Parking Support Brake is
Parking Support Brake function (rear-crossing vehi-
cles)*
If a rear radar sensor detects a vehicle approaching from the r ight
or left at the rear of the vehicle and the system determines th at the
possibility of a collision is h igh, this function will perform brake
control to reduce the likelihood of an impact with the approach ing
vehicle.
Examples of function operation
Types of sensors
WARNING
■To ensure the system can oper- ate properly
 P. 2 7 1