2021 TOYOTA HIGHLANDER HYBRID sensor

3104-5. Using the driving support systems
HIGHLANDER HV_U
Hybrid system output restriction control begins operating
System determines that possibility of collision with detected
object is high
Hybrid system output reduced
System determines that possibility of collision with detected
object is extremely high
Brake control begins operating
Brake control strength increased
Example: Multi-informa tion display: “BRAKE!”
Example: Multi-information display: “Switch to Brake”
■If the Parking Support Brake
has operated
If the vehicle is stopped due to oper-
ation of the Parki ng Support Brake,
the Parking Suppor t Brake will be
disabled and the PKSB OFF indica-
tor will illuminate. If the Parking Sup-
port Brake operates unnecessarily,
brake control can be canceled by
depressing the brake pedal or wait-
ing for approximately 2 seconds for
it to automatically be canceled.
Then, the vehicle can be operated
by depressing the accelerator pedal.
■Re-enabling the Parking Sup-
port Brake
To re-enable the Parking Support
Brake when it has been disabled
due to system operation perform
any of the following operations.
At this time, the PKSB OFF indicator
will turn off. ( P. 8 6 )
●Turn the PKSB (Parking Support
Brake) on ( P.306)
●The shift lever is in P.
●Drive with no opera tion targets in
the traveling direction of the vehi-
cle
●Change the traveling direction of
the vehicle
■If “PKSB Unavailable” is dis-
played on the multi-information
display and the PKSB OFF indi-
cator is flashing
●If this message is displayed only
when the shift lever is in any posi-
tion other than R, a sensor on the
front or rear bumper may be dirty.
Clean the sensors and their sur-
rounding area on the bumpers.
●Initialization may not have been
performed after a 12-volt battery
terminal was disconnected and
reconnected. Initialize the sys-
tem. ( P.311)
If this message continues to be
displayed even afte r initialization,
have the vehicle inspected by
your Toyota dealer.
■If “PKSB Unavailable” and
“Parking Support Brake
Unavailable Remo ve the Dirt of
Rear Camera” is displayed on
the multi-information display
and the PKSB OFF indicator is
flashing
●A sensor may be covered with ice,
snow, dirt, etc. Remove the ice,
snow, dirt, etc., from the sensor to
return the system to normal.
If this message i s shown even
after removing d irt from the sen-
sor, or shown when the sensor
was not dirty to begin with, have
the vehicle inspected by your Toy-

3114-5. Using the driving support systems
4
Driving
HIGHLANDER HV_Uota dealer.
●A sensor may be frozen. Once the
ice melts, the sys
tem will return to
normal.
●Water may be continuously flow-
ing over the sensor surface, such
as in a heavy rain. When the sys-
tem determines that it is normal,
the system will re turn to normal.
■If a 12-volt battery terminal has
been disconnected and recon-
nected
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
22 mph (35 km/h) or more.

3124-5. Using the driving support systems
HIGHLANDER HV_U
*: 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 Suppor t Brake function (static objects)*
If the sensors detect a static object, such as a wall, in the t rav-
elling direction of the vehicle and the system determines that
a collision may occur due to the vehicle suddenly moving for-
ward due to an accidental accelerator pedal operation, the
vehicle moving the unintended direction due to the wrong
shift lever position, 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

3134-5. Using the driving support systems
4
Driving
HIGHLANDER HV_U
■When the accelerator pedal is depressed excessively
■When the vehicle moves in the unintended direction due to
the wrong shift lever positionFront corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Types of sensors

3144-5. Using the driving support systems
HIGHLANDER HV_U
WARNING
■To ensure the Parking Sup-
port Brake can operate prop-
erly
Observe the following precautions
regarding the sensors (
P.292).
Failure to do so may cause a sen-
sor to not operate properly, and
may cause an accident.
●Do not modify, disassemble or
paint the sensors.
●Do not replace a sensor with a
part other than a genuine part.
●Do not subject a sensor or its
surrounding area to a strong
impact.
●Do not damage the sensors,
and always keep them clean.
●If the area around a radar sen-
sor is subjected to an impact,
the system may not operate
properly due to a sensor mal-
function. Have the vehicle
inspected by your Toyota
dealer.
■Handling the suspension
Do not modify the suspension, as
changes to the height or inclina-
tion of the vehicle may prevent
the sensors from detecting
objects correctly or cause the sys-
tem to not operate or operate
unnecessarily.
■If the Parking Support Brake
function (static objects) oper-
ates unnecessarily, such as
at a railroad crossing
In the event that the Parking Sup-
port Brake function (static objects)
operates unnecessarily, such as
at a railroad crossing, brake con-
trol will be canceled after approxi-
mately 2 seconds, allowing you to
proceed forward and leave the
area, brake control can also be
canceled by depressing the brake
pedal. Depressing the accelera-
tor pedal after brake control is
canceled will allow you to proceed
forward and leave the area.
■Notes when washing the vehi-
cle
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 malfunction.
●When using steam to clean the
vehicle, do not direct steam too
close to the sensors as doing so
may cause a sensor to malfunc-
tion.
■When to disable the Parking
Support Brake
In the following situations, disable
the Parking Suppor t Brake as the
system may opera te even though
there is no possibility of a colli-
sion.
●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

3154-5. Using the driving support systems
4
Driving
HIGHLANDER HV_U
■The Parking Support Brake
function (static object) will
operate when
The function will operate when the
PKSB OFF indicator is not illumi-
nated or flashing ( P.85, 86) and all
of the following conditions are met:
●Hybrid system output restriction
control
• The Parking Support Brake is
enabled.
• The vehicle speed is 9 mph (15 km/h) or less.
• There is a static object in the trav- eling direction of the vehicle and 6
to 13 ft. (2 to 4 m) away.
• The Parking Support Brake deter- mines that a stronger-than-nor-
mal brake operation is necessary
to avoid a collision.
●Brake control
• Hybrid system output restriction control is operating.
• The Parking Support Brake deter-
mines that an immediate brake
operation is necessary to avoid a
collision.
■The Parking Support Brake
function (static objects) will
stop operating when
The function will st op operating if any of the following conditions are
met:
●Hybrid system output restriction
control
• The Parking Support Brake is dis-
abled.
• The system determines that the collision has become avoidable
with normal brake operation.
• The static object is no longer 6 to 13 ft. (2 to 4 m) 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 control.
• The static object is no longer 6 to 13 ft. (2 to 4 m) away from the
vehicle or in the traveling direction
of the vehicle.
■Re-enabling the Parking Sup-
port Brake function (static
objects)
 P.310
■Detection range of the Parking
Support Brake function (static
objects)
The detection range of the Parking
Support Brake function (static
objects) differs from the detection
range of the intuitive parking assist.
(  P.297) Therefore, even if the intu-
itive parking assist detects an object
and provides a warning, the Parking
Support Brake function (static
objects) may not start operating.
■Objects that the Parking Sup-
port Brake function (static
objects) may not detect
The sensors may not be able to
detect certain objects, such as the
following:
●Pedestrian
●Cotton cloth, snow, and other
WARNING
●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 additional trim
strip, etc.), bicycle carrier, or
snow plow
●When using an automatic car
wash

3164-5. Using the driving support systems
HIGHLANDER HV_Umaterials that are poor reflectors
of ultrasonic waves
●Objects which are not perpendicu-
lar to the ground, are not perpen-
dicular to the traveling direction of
the vehicle, are uneven or are
waving
●Low objects
●Thin objects such as wires,
fences, ropes and signposts
●Objects that are e
xtremely close
to the bumper
●Sharply-angled objects
●Tall objects with upper sections
projecting outwards in the direc-
tion of your vehicle
■Situation in which the Parking
Support Brake function (static
objects) may not operate
When driving with th e shift lever in
N.
■Intuitive parking assist buzzer
Regardless of whether the intuitive
parking assist syste m is enabled or
not ( P.293), if the Parking Support
Brake function (static objects) is
enabled ( P.306), the fr ont or rear
sensors detect an object and brake
control is perform ed, the intuitive
parking assist buzze r will sound to
notify the driver of the approximate
distance to the object.
■Situations in which the Parking
Support Brake function (static
objects) may op erate even if
there is no possibility of a colli-
sion
In some situations, such as the fol-
lowing, the Parking Support Brake
function (static objects) may operate
even though there is no possibility of
a collision.
●Vehicle surroundings
• When driving on a narrow road • When driving on a gravel road or
in an area with tall grass
• When driving toward a banner, flag, low-hanging branch or boom
barrier (such as those used at rail-
road crossings, toll gates and
parking lots)
• When driving on a narrow path
surrounded by a structure, such
as in a tunnel or on an iron bridge
• When parallel parking
• 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 on a steep slope
• If a sensor is hit by a large amount
of water, such as when driving on
a flooded road
●Weather
• If a sensor is covered with ice,
snow, dirt, etc. (when cleared, the
system will return to normal)
• If heavy rain or water strikes a
sensor
• When driving in inclement weather such as fog, snow or a sandstorm
• When strong winds are blowing
●Other ultrasonic wave sources
• When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or

3174-5. Using the driving support systems
4
Driving
HIGHLANDER HV_Uother devices which produce ultra-
sonic waves are near the vehicle
• If a sticker or an electronic compo-
nent, such as a backlit license
plate (especially fluorescent type),
fog lights, fender pole or wireless
antenna is insta lled near a sensor
●Changes in the vehicle posture
• If the vehicle is significantly tilted
• 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 t o a collision or
other impact
• If a sensor has been painted or covered with a sticker, etc.
■Situations in which the Parking
Support Brake function (static
objects) may not operate prop-
erly
In some situations, such as the fol-
lowing, this function may not oper-
ate properly.
●Weather
• When a sensor or the area around
a sensor is extremely hot or cold
• When strong winds are blowing
• If a sensor is covered with ice, snow, dirt, etc. (when cleared, the
system will return to normal)
• If heavy rain or water strikes a sensor
• When driving in inclement weather such as fog, snow or a sandstorm
• When the sensor is frozen (Once the sensor thaws, the system will
return to normal)
●Vehicle surroundings
• 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
• The vehicle is approaching a tall or curved curb.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• If objects draw too close to the
sensor.
●Other ultrasonic waves sources
• When vehicle horns, vehicle detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle
• If a sticker or an electronic compo- nent, such as a backlit license
plate (especially fluorescent type),
fog lights, fender pole or wireless
antenna is installed near a sensor
●Changes in the v ehicle posture
• If the vehicle is significantly tilted
• If the front of the v ehicle 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 equipment that may obstruct a sensor is installed, such
as a bumper protector (an addi-
tional trim strip, etc.), bicycle car-
rier, or snow plow
• If the suspension has been modi- fied or tires of a size other than
specified are installed
• If a sensor has been painted or
covered with a sticker, etc.