2022 TOYOTA COROLLA HATCHBACK brake sensor

2584-5. Using the driving support systems
■When the vehicle stops while fol-
low-up cruising
●Pressing the “+RES” switch while the
vehicle ahead stops will resume fol- low-up cruising if the vehicle ahead
starts off within approximately 3 sec-
onds after the switch is pressed.
●If the vehicle ahead starts off within 3
seconds after your vehicle stops, fol- low-up cruising will be resumed.
■Automatic cancelation of vehi-
cle-to-vehicle distance control
mode
Vehicle-to-vehicle distance control mode
is automatically canceled in the follow-
ing situations.
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●The sensor cannot detect correctly because it is covered in some way.
●Pre-collision braking is activated.
●The parking brake is operated.
●The vehicle is stopped by system con-
trol on a steep incline.
●The following are detected when the
vehicle has been st opped by system
control: • The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for about 3 minutes
If vehicle-to-vehicle distance control
mode is automatically canceled for any reasons other than the above, there
may be a malfunction in the system.
Contact any authorized Toyota retailer
or Toyota authorized repairer, or any reli- able repairer.
■Automatic cancelation of constant
speed control mode
Constant speed control mode is auto- matically canceled in the following situa-
tions:
●Actual vehicle speed is more than
approximately 16 km/h (10 mph)
below the set vehicle speed.
●Actual vehicle speed falls below
approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●Pre-collision braking is activated.
If constant speed control mode is auto-
matically canceled for any reasons other
than the above, there may be a malfunc- tion in the system. Contact any author-
ized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■The Dynamic Radar Cruise Control with Road Sign Assist may not
operate properly when
As the Dynamic Radar Cruise Control with Road Sign Assist may not operate
properly in conditions in which RSA may
not operate or detect correctly ( P.279), when using this function,
make sure to check the speed limit sign
displayed.
In the following situations, the set speed
may not be changed to the recognized
speed limit by pressing and holding the “+RES”/“-SET” switch.
●If speed limit information is not availa-ble
●When the recognized speed limit is the same as the set speed
●When the recognized speed limit is outside of the speed range that the
dynamic radar cruise control system
can operate
■Brake operation
A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.
■Warning messages and buzzers for
dynamic radar cruise control with full-speed range
Warning messages and buzzers are
used to indicate a system malfunction or

259
4
4-5. Using the driving support systems
Driving
to inform the driver of the need for cau-
tion while driving. If a warning message is shown on the multi-information dis-
play, read the message and follow the
instructions. ( P.222, 520)
■When the sensor may not be cor- rectly detecting the vehicle ahead
In the case of the following and depend-
ing on the conditions, operate the brake pedal when deceleration of the system
is insufficient or operate the accelerator
pedal when acceleration is required.
As the sensor may not be able to cor-
rectly detect these types of vehicles, the
approach warning ( P.255) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in
the luggage compartment, etc.)
●Preceding vehicle has an extremely
high ground clearance
■Conditions under which the vehi-
cle-to-vehicle distance control
mode may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator
pedal, depending on the situation) as necessary.
As the sensor may not be able to cor-
rectly detect vehicl es ahead, the system may not operate properly.
●When the road curves or when the lanes are narrow
●When steering wheel operation or your position in the lane is unstable
●When the vehicle ahead of you decel-erates 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

269
4
4-5. Using the driving support systems
Driving
■Automatic cancelation of constant
speed control mode
Constant speed control mode is auto-
matically canceled in the following situa-
tions:
●Actual vehicle speed is more than
approximately 16 km/h (10 mph) below the set vehicle speed.
●Actual vehicle speed falls below approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is
turned off.
●Pre-collision braking is activated.
●When the shift lever is in N or the clutch pedal is depressed for a certain
amount of time or more.
If constant speed control mode is auto- matically canceled for any reasons other
than the above, there may be a malfunc-
tion in the system. Contact any author- ized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■The Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly when
As the Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly in conditions in which RSA may
not operate or detect correctly
( P.279), when using this function, make sure to check the speed limit sign
displayed.
In the following situations, the set speed may not be changed to the recognized
speed limit by pressing and holding the
“+RES”/“-SET” switch.
●If speed limit information is not availa-
ble
●When the recognized speed limit is
the same as the set speed
●When the recognized speed limit is
outside of the speed range that the
dynamic radar cruise control system can operate
■Brake operation
A brake operation sound may be heard and the brake pedal response may
change, but these are not malfunctions.
■Warning messages and buzzers for
dynamic radar cruise control
Warning messages and buzzers are
used to indicate a system malfunction or
to inform the driver of the need for cau- tion while driving. If a warning message
is shown on the multi-information dis-
play, read the message and follow the instructions. ( P.222, 520)
■When the sensor may not be cor-
rectly detecting the vehicle ahead
In the case of the following and depend- ing on the conditions, operate the brake
pedal when deceleration of the system
is insufficient or operate the accelerator pedal when acceleration is required.
As the sensor may not be able to cor-
rectly detect these types of vehicles, the approach warning ( P.266) may not be
activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load in
the luggage compartment, etc.)

2704-5. Using the driving support systems
●Preceding vehicle has an extremely
high ground clearance
■Conditions under which the vehi-
cle-to-vehicle distance control mode may not function correctly
In the case of the following conditions,
operate the brake pedal (or accelerator pedal, depending on the situation) as
necessary.
As the sensor may not be able to cor- rectly detect vehicles ahead, the system
may not operate properly.
●When the road curves or when the
lanes are narrow
●When steering wheel operation or
your position in the lane is unstable
●When the vehicle ahead of you decel-
erates 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 depr essing the accel-
erator pedal

307
4
4-5. Using the driving support systems
Driving
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.
■Situations in which the system may not operate properly
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 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.
●When vehicle horns, vehicle detec-
tors, 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 ga thers or frills).
●When objects that are not perpendicu-
lar to the ground, not perpendicular to
the vehicle traveling direction, une- ven, or waving are in the detection
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, motor-
cycle, 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 addi- tional trim strip, et c.), bicycle 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
■Situations in which the system may
operate even if there is no possibil-
ity of a collision
In some situations, such as the follow-
ing, the system may operate even
though there is no possibility of a colli- sion.

3084-5. Using the driving support systems
●When driving on a narrow road
●When driving toward a banner,
flag,low-hanging branch or boom bar-
rier(such as those used at railroad crossings, toll gates and parking lots)
●When there is a rut or hole in the sur-face of the road
●When driving on a metal cover (grat-ing),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
iceon 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 strong winds are blowing
●When vehicle horns, vehicle detec-
tors, 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
●The vehicle is approaching a tall or
curved curb
●Driving close to columns (H-shaped
steel beams, etc.) in multistory park- ing garages, construction sites, etc.
●If the vehicle cannot be driven in a stable manner, such as when the
vehicle has been in an accident or is
malfunctioning
●On an extremely bumpy road, on an
incline, on gravel, or on grass
●When a tire chains, compact spare tire
or an emergency tire puncture repair kit is used
■Detection range of the sensors
Sensor detection display,
object distance

317
4
4-5. Using the driving support systems
Driving
●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
*: If equipped
■Parking Support Brake func-
tion (static objects) (if
equipped)
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. 3 2 4 )
■Parking Support Brake func-
tion (rear-crossing vehicles) (if
equipped)
Rear radar sensors are used to
detect approaching vehicles in the
PKSB (Parking Suppor t
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

3184-5. Using the driving support systems
detection area behind the vehicle
when backing up. ( P.327)
The Parking Support Brake can be
enabled/disabled on the multi-infor-
mation display. All of the Parking
WA R N I N G
■Cautions regarding the use of
the system
Do not overly rely on the system, as
doing so may lead to an accident.
●The driver is solely responsible for safe driving. Always drive carefully,
taking care to observe your
surroundings. 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 operatio ns 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 Br ake 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 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 “Parking Support Brake Una- vailable” is displayed on the
multi-information display and the
PKSB OFF indicator is flashing
If this message is displayed immedi-
ately after the engine switch is
changed to ON, operate the vehicle carefully, paying attention to your
surroundings. 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