sensor TOYOTA HIGHLANDER 2022 Workshop Manual

2944-5. Using the driving support systems
right or left at the rear of the vehicle
is detected, a buzzer will sound.
4.2-inch display
Use the meter control switches
to enable/disable the RCTA
function. ( P.89)
1 Press or to select .
2 Press or to select
“RCTA” and then press .
7-inch display
Use the meter control switches
to enable/disable the RCTA
function. ( P.98)
1 Press or to select .
2 Press or to select
“RCTA” and then press .
When the RCTA function is dis-
abled, the RCTA OFF indicator
( P.78) illuminates on the
multi-information display. (Each
time the engine switch is turned off
then changed to ON, the RCTA
function will be enabled automati-
cally.)■Outside rear vie w mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicator may be difficult
to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises, such as if the
audio system volume is high.
■When “Rear Cross Traffic Alert
Unavailable” is shown on the
multi-information display
Water, ice, snow, mud, etc., may be
attached to the rear bumper around
the sensors. ( P.280) Removing
the water, ice, snow, mud, etc., from
the attached to the rear bumper
around the sensors to return the
function to normal.
Additionally, the function may not
Turning the RCTA func-
tion on/off
WARNING
■Cautions regarding the use of
the function
The driver is solely responsible for
safe driving. Always drive safely,
taking care to observe your sur-
roundings.
The RCTA function is only a sup-
plementary function which alerts
the driver that a vehicle is
approaching from the right or left
at the rear of the vehicle. As the
RCTA function may not function
correctly under certain condi-
tions, the driver’s own visual con-
firmation of safety is necessary.
Over reliance on this function may
lead to an accident resulting
death or serious injury.
NOTICE
■Before using the RCTA func-
tion
Do not place objects near the sen-
sors.

2954-5. Using the driving support systems
4
Driving
operate normally when driving in
extremely hot or cold environments.
■Rear side radar sensors
 P. 2 8 0
■Adjusting the buzzer vol-
ume
The buzzer volume can be
adjusted on the multi-informa-
tion display.
4.2-inch display
Use the meter control switches
to change settings. ( P. 8 9 )
1 Press or to select .
2 Press or to select
“RCTA” and then press and
hold .
3 Select the volume and then
press .
Each time the switch is pressed,
the volume lev el will change
between 1, 2, and 3.
7-inch display
Use the meter control switches
to change settings. ( P. 9 8 )1
Press or to select .
2 Press or to select and
“RCTA” then press and hold
.
3 Select the volume and then
press .
Each time the switch is pressed,
the volume level will change
between 1, 2, and 3.
■Muting a buzzer temporarily
A mute button will be displayed
on the multi-information display
when an object is detected. To
mute the buzzer, press .
Mute will be canceled automati-
cally in the following situations:
 When the shift lever is
changed.
 When the vehicle speed
exceeds a certain speed.
 When the operating function
is temporarily canceled.
 When the operating function
is disabled manually.
 When the engine switch is
turned off.
■Operation of the RCTA function
The RCTA function uses rear side radar sensors to detect vehicles
approaching from the right or left at the rear of the vehicle a nd alerts
the driver of the presence of such vehicles by flashing the out side
rear view mirror indicators and sounding a buzzer.
Setting the buzzer volume
(vehicles with a Intuitive
parking assist)
RCTA function

2974-5. Using the driving support systems
4
Driving
The buzzer can alert the driver
of faster vehicles approaching
from farther away.
Example:
■The RCTA function is opera-
tional when
The RCTA function operates when
all of the followin g conditions are
met:
●The engine swit ch is in ON.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is approxi-
mately 5 mph (8 km/h) or less.
●The approaching vehicle speed is
between approximately 5 mph (8
km/h) and 18 mph (28 km/h).
■Conditions under which the
system will not detect a vehicle
The RCTA function is not designed
to detect the following types of vehi-
cles and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
vehicle
●Vehicles approaching from the
parking spaces nex
t to your vehi-
cle
*
●The distance between the sensor
and approaching vehicle gets too
close
*: Depending on the conditions, detection of a v ehicle and/or
object may occur.
■Situations in which the system
may not operate properly
The RCTA function may not detect
vehicles correctly in the following
situations:
●When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
Approaching
vehicle speed Approximate
alert distance
18 mph (28
km/h) (fast)65 ft. (20 m)
5 mph (8 km/h) (slow)18 ft. (5.5 m)

2984-5. Using the driving support systems
●When mud, snow, ice, a sticker,
etc.,is covering the sensor or sur-
rounding area on the position
above the rear bumper
●When driving on a road surface
that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
●When multiple vehicles are
approaching with only a small gap
between each vehicle
●When a vehicle is approaching at
high speed
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow
●When backing up on a slope with
a sharp change in grade
●When backing out of a sharp
angle parking spot
●When there is a significant differ-
ence in height between your vehi-
cle and the vehicle that enters the detection area
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a
size other than
specified are installed
●If the front of the v ehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle tu rns into the
detection area
■Situations in which the system
may operate even if there is no
possibility of a collision
Instances of the RCTA function
unnecessary detec ting a vehicle
and/or object may increase in the
following situations:
●When the parking space faces a
street and vehicles are being
driven on the street
●When the distance between your
vehicle and metal objects, such as

2994-5. Using the driving support systems
4
Driving
a guardrail, wall, sigh, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow
●When a vehicle passes by the
side of your vehicle
●When a detected vehicle turns
while approaching the vehicle
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward t he rear bumper,
such as from a sprinkler
●Moving objects (flags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distanc e between your vehicle and a guardrail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a
size other than
specified are installed
●If the front of the v ehicle is raised
or lowered due to the carried load

3004-5. Using the driving support systems
*: If equipped
■Parking Support Brake
function (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 back-
ing up. ( P.307)
■Parking Support Brake
function (rear-crossing
vehicles) (if equipped)
Rear radar sensors are used to
detect approaching vehicles in
the detection area behind the
vehicle when backing up.
( P.310)PKSB (Parking Sup-
por t Brake)*
The Parking Support Brake
system consists of the fol-
lowing functions that oper-
ate when driving at a low
speed or backing up, such
as when parking. When the
system determines that the
possibility of a collision
with a detected object is
high, a warning operates to
urge the driver to take eva-
sive action. If the system
determines that the possi-
bility of a collision with a
detected object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the col-
lision.
PKSB (Parking Support
Brake) system
WARNING
■Cautions regarding the use of
the system
Do not overly rely on the system,
as doing so may lead to an acci-
dent.
Always drive while checking the
safety of the surroundings of the
vehicle.
Depending on the vehicle and
road conditions, weather, etc., the
system may n ot operate.
The detection cap abilities of sen-
sors and radars are limited.
Always drive while checking the
safety of the surroundings of the
vehicle.
●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 provide support to
lessen the severity of collisions.
However, it may not operate in
some situations.
●The Parking Support Brake sys-
tem 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 imme-
diately as brake control will be
canceled after approximately 2
seconds.

3014-5. Using the driving support systems
4
Driving
The Parking Support Brake can
be enabled/disabled on the
multi-information display. All of
the Parking Support Brake func-
tions (static objects and
rear-crossing vehicles) are
enabled/disabled simultane-
ously.
Use the meter control switches
to enable/disable the parking
support brake. (P.98)
1 Press or to select .
2 Press or to select
and then press .
When the Parking Support Brake is
disabled, the PKSB OFF indicator
( P.78) illuminates on the instru-
WARNING
●It is extremely dangerous to
check the system operations by
intentionally driving the vehicle
into the direction of a wall, etc.
Never attempt 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 poss ibility 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
●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 automatic car
washing devices
●If the vehicle cannot be driven in
a stable manner, such as when
the vehicle has been in an acci-
dent 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-informa-
tion display and the PKSB
OFF indicator is flashing
If this message is displayed
immediately after the engine
switch is changed to ON, operate
the vehicle carefully, paying atten-
tion to your surroundings. It may
be necessary to drive the vehicle
for a certain amount of time
before the system returns to nor-
mal. (If the system is not return to
normal after driv ing for a while,
clean the sensors and their sur-
rounding area on the bumpers.)
Enabling/Disabling the
Parking Support Brake

3054-5. Using the driving support systems
4
Driving
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 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. 7 8 )
●Turn the PKSB (Parking Support
Brake) on ( P.301)
●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.
■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-
ota 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 retu rn to normal.

3074-5. Using the driving support systems
4
Driving
*: 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

3084-5. Using the driving support systems
■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
WARNING
■To ensure the system can
operate properly
 P. 2 8 6