2022 TOYOTA C-HR brake sensor

4264-5. Using the driving support systems
C-HR_HV_OM_Europe_OM10720E
■ Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake peda l (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahea d, the system
may not operate properly.
● When the vehicle ahead of you decelerates suddenly
● When driving on a road surrounded by a structure, such as in a tunnel or on
a bridge
● While the vehicle speed is decreasing to the set speed after the vehicle
accelerates by depressing the accelerator pedal
● When the road curves or when the lanes
are narrow
● When steering wheel operation or your
position in the lane is unstable

4644-5. Using the driving support systems
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● On an extremely bumpy road, on an incline, on gravel, or on grass.
● When vehicle horns, vehicle detectors, 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.
● When a pedestrian is wearing clothing that does not reflect ultrasonic waves
(ex. skirts with gathers or frills).
● When objects that are not perpendicular to the ground, not perpendicular to
the vehicle traveling direction, uneven, or waving are in the d etection 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, motorcycle, 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 sensor is installed, such as a towing
eyelet, bumper protector (an additional trim strip, etc.), bicy cle 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
● When a sensor or the area around a
sensor is extremely hot or cold.

4654-5. Using the driving support systems
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Driving
C-HR_HV_OM_Europe_OM10720E
■ Situations in which the system may operate even if there is no possibil-
ity of a collision
In some situations, such as the following, the system may opera te even
though there is no possibility of a collision.
● When driving toward a banner, flag, low-hanging branch or boom barrier
(such as those used at railroad crossings, toll gates and parki ng lots)
● When there is a rut or hole in the surface of the road
● When driving on a metal cover (grating), 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 vehicle horns, vehicle detectors, 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
● When driving on a narrow road
●When strong winds are blowing

477
4
4-5. Using the driving support systems
Driving
C-HR_HV_OM_Europe_OM10720E
PKSB (Parking Suppor t Brake)
■Parking Support Brake function (static objects)
Ultrasonic sensors are used to detect static objects, such as a wall,
in the detection area when driving at a low speed or backing up .
( P. 485)
■Parking Support Brake function (rear-crossing vehicles) (if
equipped)
Rear radar sensors are used to detect approaching vehicles in t he
detection area behind the vehicle when backing up. ( P. 4 8 9 )
: If equipped
The Parking Support Brake system consists of the following
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 determine s
that the possibility of a collision with a detected object is
extremely high, the brakes are automatically applied to help
avoid the collision or help reduce the impact of the collision.
PKSB (Parking Support Brake) system

4834-5. Using the driving support systems
4
Driving
C-HR_HV_OM_Europe_OM10720E
■If the Parking Support Brake has operated
If the vehicle is stopped due to operation of the Parking Suppo rt Brake, the
Parking Support Brake will be disabled and the PKSB OFF indicat or will illu-
minate. If the Parking Support Brake operates unnecessarily, br ake control
can be canceled by depressing the brake pedal or waiting for ap proximately 2
seconds for it to automatically be canceled. Then, the vehicle can be oper-
ated by depressing the accelerator pedal.
■ Re-enabling the Parking Support Brake
To re-enable the Parking Support Brake when it has been disabled due to oper-
ation of the Parking Support Brake, either enable the system ag ain (P. 478),
or turn the engine switch off and then back to ON.
Additionally, if any of the following conditions are met, the s ystem will be re-
enabled automatically and the PKSB OFF indicator will turn off:
● The P shift position is selected
● The object is no longer detected in the traveling direction of the vehicle
● The traveling direction of the vehicle changes
■ If “Parking Support Brake Unavailable” and “Parking assist unavailable.
Clean parking assist sensor” is displayed on the multi-informat ion dis-
play and the PKSB OFF indicator is flashing
● A sensor may be covered with ice, snow, dirt, etc. Remove any ice, snow,
dirt, etc., from the sensor to return the system to normal.
If this message continues to be displayed even after cleaning t he sensor, or
is displayed even though the sensor is clean, have the vehicle inspected
any authorized Toyota retailer, Toyota authorized repairer, or any reliable
repairer.
● It is possible the sensor may be frozen.
Once the ice melts, the system will return to normal.
● Water may be continuously flowing over the surface of the sensor.
When the system judges there is no problem, the system will ret urn to nor-
mal.
■ If a 12-volt battery terminal has been disconnected and reconnected
The system needs to be initialized. To initialize the system, d rive the vehicle
straight ahead for 5 seconds or more at a speed of approximatel y 35 km/h
(22 mph) or more. Additionally, fo r vehicles with the Parking Support Brake
function, turn the steering wheel fully to the left and right w ith the vehicle
stopped.

4844-5. Using the driving support systems
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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 ac cident.
Always drive while checking the safety of the surroundings of t he vehicle.
Depending on the vehicle and road conditions, weather, etc., th e system
may not operate.
The detection capabilities of sensors and radars are limited. A lways drive
while checking the safety of the surroundings of the vehicle.
● The driver is solely responsible for safe driving. Always drive carefully, tak-
ing care to observe your surroundings. The Parking Support Brak e system
is designed to provide support to lessen the severity of collis ions. How-
ever, 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 ve hicle, it is
necessary to depress the brake pedal immediately as brake contr ol will be
canceled after approximately 2 seconds.
● It is extremely dangerous to check the system operations by intentionally
driving the vehicle into the direction of a wall, etc. Never at tempt such
actions.
■ When to disable the Parking Support 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 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 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 using automatic car washing devices
● If the vehicle cannot be driven in a stable manner, such as when the vehi-
cle 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

485
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4-5. Using the driving support systems
Driving
C-HR_HV_OM_Europe_OM10720E
Parking Support Brake function (static
objects)
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
: If equipped
If the sensors detect a static object, such as a wall, in the t ravel-
ing direction of the vehicle and the system determines that a c ol-
lision may occur due to the vehicle suddenly moving forward
due to an accidental accelerator pedal operation, the vehicle
moving the unintended direction due to the wrong shift lever
being selected, or while parking or traveling at low speeds, th e
system will operate to lessen the impact with the detected stat ic
object and reduce the resulting damage.
Examples of function operation

4874-5. Using the driving support systems
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Driving
C-HR_HV_OM_Europe_OM10720E
■The Parking Support Brake function (static objects) will operate when
The function will operate when the PKSB OFF indicator is not il luminated or
flashing (P. 159, 161) and all of the following conditions are met:
● Hybrid system output restriction control
• 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 veh icle and approx-
imately 2 to 4 m (6 to 13 ft.) away.
• The Parking Support Brake determines that a stronger-than-norm al brake
operation is necessary to avoid a collision.
● Brake control
• Hybrid system output restriction control is operating
• The Parking Support Brake determines that an immediate brake o pera-
tion is necessary to avoid a collision.
■ The Parking Support Brake function (static objects) will stop operating
when
The function will stop operating if any of the following condit ions are met:
● Hybrid system output restriction control
• The Parking Support Brake is disabled.
• The system determines that the collision has become avoidable with nor-
mal brake operation.
• The static object is no longer approximately 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 disabled.
• Approximately 2 seconds have elapsed since the vehicle was sto pped by
brake control.
• The brake pedal is depressed after the vehicle is stopped by b rake con-
trol.
• The static object is no longer approximately 2 to 4 m (6 to 13 ft.) away
from the vehicle or in the traveling direction of the vehicle.
■ Detection range of the Parking Support Brake function (static objects)
The detection range of the Parking Support Brake function (stat ic objects) dif-
fers from the detection range of the Toyota parking assist-sens or. (P. 461)
Therefore, even if the Toyota parking assist-sensor detects an object and pro-
vides a warning, the Parking Support Brake function (static obj ects) may not
start operating.
■ Situations in which the system may not operate properly
P. 463
■ Situations in which the system may operate even if there is no possibil-
ity of a collision
P. 465