TOYOTA HIGHLANDER 2021 Owners Manual (in English)
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Engine output
Braking force
Time
Engine output restriction control begins operating
System determines that possibility of collision with detected 
object is high
Engine output reduced
Example: Multi-information display: “BRAKE!”
 Figure 3 When brake control operates
Engine output
Braking force
Time 
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Engine output restriction control begins operating
System determines that possibility of collision with detected 
object is high
Engine output reduced
System determines that possibility of collision with detected 
object is extremely high
Brake control begins operating
Brake control strength increased
Example: Multi-information 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 Parking Support Brake, 
the Parking Support 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. 7 8 )
●Turn the PKSB (Parking Support 
Brake) on ( P.298)
●The shift lever is in P.
●Drive with no operation targets in 
the traveling direction of the vehi-
cle
●Change the traveling direction of 
the vehicle
■If “PKSB Unavailable” is dis-
played on the mu lti-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 battery terminal 
was disconnected and recon-
nected. Initialize the system. 
(  P.303)
If this message co ntinues to be 
displayed even afte r initialization, 
have the vehicle inspected by 
your Toyota dealer.
■If “PKSB Unavailable” and 
“Parking Support Brake 
Unavailable Remove 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 is shown even 
after removing dirt from the sen-
sor, or shown when the sensor 
was not dirty to begin with, have 
the vehicle inspected by your Toy- 
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●A sensor may be frozen. Once the 
ice melts, the system 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 return to normal.
■If a battery terminal has been 
disconnected 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 
22 mph (35 km/h) or more. 
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*: 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 trav-
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 
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■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 
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WARNING
■To ensure the Parking Sup-
port Brake can operate prop-
erly
Observe the following precautions 
regarding the sensors (
P.284). 
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 Support Brake as the 
system may operate 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 
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■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.77, 78) and all 
of the following conditions are met:
●Engine 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
• Engine 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 stop operating if 
any of the following conditions are  met:
●Engine 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.302
■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.289) 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 
materials that are poor reflectors 
of ultrasonic waves
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 
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●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 extremely 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 the shift lever in 
N.
■Intuitive parking assist buzzer
Regardless of whether the intuitive 
parking assist system is enabled or 
not ( P.285), if the Parking Support 
Brake function (static objects) is 
enabled ( P.298), the front or rear 
sensors detect an object and brake 
control is performed, the intuitive 
parking assist buzzer will sound to 
notify the driver of the approximate 
distance to the object.
■Situations in which the Parking 
Support Brake function (static 
objects) may operate 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 other vehicles or  
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HIGHLANDER_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 installed 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 to  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 other 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 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 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 ar e installed
• If a sensor has been painted or 
covered with a sticker, etc. 
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*: If equipped
This function will operate in situation such as the following if a vehi-
cle 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.280
Parking Suppor t Brake function (rear-crossing 
vehicles)*
If a rear radar sensor detects a vehicle approaching from the 
right or left at the rear of the vehicle and the system deter-
mines that the possibility of a collision is high, this function 
will perform brake control to reduce the likelihood of an 
impact with the approaching vehicle.
Example of function operation
Types of sensorsWARNING
■To ensure the Parking Sup-
port Brake function 
(rear-crossing vehicles) can 
operate properly
Observe the following precautions 
regarding the rear radar sensors 
(  P.280). Failure to do so may 
cause a sensor to not operate 
properly, and may cause an acci-
dent.