sensor TOYOTA HIGHLANDER HYBRID 2023 Workshop Manual

2914-5. Using the driving support systems
4
Driving
tone, followed by fast beeps.
 Automatic buzzer mute func-
tion: After a buzzer begins
sounding, if the distance
between the vehicle and the
detected object does not
become shorter, the buzzer
will be muted automatically.
(However, if the distance
between the vehicle and
object is 1.0 ft. (30 cm) or
less, this function will not
operate.)
The buzzer sounds volume can
be adjusted. (P.288)RCTA (Rear Cross Traf-
fic Alert) function
The RCTA function uses the
BSM rear side radar sensors
installed behind the rear
bumper. This function is
intended to assist the driver
in checking areas that are
not easily visible when
backing up.
WARNING
■Cautions regarding the use of
the system
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
conditions, the driver’s own visual
confirmation of safety is neces-
sary.
Over reliance on this function may
lead to an accident resulting
death or serious injury.
System components

2924-5. Using the driving support systems
Meter control switches
Turning the RCTA function on/off.
When the RCTA function is dis-
abled, the RCTA OFF indicator illu-
minates.
Outside rear view mirror indi-
cators
If a vehicle is detected as
approaching from the left or right
behind the vehicle, both outside
rear view mirror indicators will blink
and a buzzer will sound.
Center Display
If a vehicle approaching from the
right or left at the rear of the vehicle
is detected, the RCTA icon
(  P.293) for the det ected side will
be displayed on the Center Display.
This illustration shows an example
of a vehicle approaching from both
sides of the vehicle.
The RCTA can be enabled/dis-
abled on of the multi-infor-
mation display. ( P.510)
When the RCTA function is dis-
abled, the RCTA OFF indicator (
 P.84) illuminates. (Each time the
power switch is turned off then
changed to ON, t he RCTA function
will be enabled a utomatically.)
■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
Ice, snow, mud, etc., may be
attached to the rear bumper around
the sensors. ( P.279) Removing
the ice, snow, mud, etc., from the
attached to the rear bumper around
the sensors to normal.
Additionally, the function may not
function normally when used in
extremely hot or cold environments.
■When “Rear Cross Traffic Alert
Malfunction Visit Your Dealer”
is shown on the multi-informa-
tion display
There may be a sensor malfunction
or misaligned. Have the vehicle
inspected at a Toyota dealer.
■Rear side radar sensors
 P.279
■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.
Turning the RCTA func-
tion on/off
RCTA function

2944-5. Using the driving support systems
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 power switch is in ON.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than
approximately 9 mph (15 km/h).
●The approaching vehicle speed is
between approximately 5 mph (8
km/h) and 34 mph (56 km/h).
■Setting the buzzer volume
(vehicles with In tuitive parking
assist)
The buzzer volume can be adjusted
on the multi-information display.
The volume of the RCTA buzzer can
be adjusted on of the multi-infor-
mation display.( P.510)
■Muting a buzzer temporarily
(vehicles with Intuitive parking
assist)
A mute button will be displayed on
the multi-informatio n display when a
vehicle or an object is detected. To
mute the buzzer, press .
The buzzers for the RCTA function
and Intuitive parking assist will be
muted simultaneously.
Mute will be cancele d automatically
in the following situations:
●When the shift lever is changed.
●When the vehicle speed exceeds
a certain speed.
●When there is a malfunction in a
sensor or the system is temporar-
ily unavailable.
●When the operati ng function is
disabled manually.
●When the power switch is turned
off.
■Conditions under which the
system will not detect a vehicle
The RCTA function is not designed
to detect the follo wing 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
Approaching
vehicle speed Approximate
alert distance
34 mph (56
km/h) (fast)131 ft. (40 m)
5 mph (8 km/h) (slow)18 ft. (5.5 m)

2954-5. Using the driving support systems
4
Driving
●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 next to your vehi-
cle
*
●The distance between the sensor
and approaching vehicle gets too
close
*: Depending on the conditions, detection of a vehicle 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
●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 car
rier, or snow plow
●When backing up on a slope with
a sharp change in grade
●When backing out of a sharp
angle parking spot
●Immediately after the RCTA func-
tion is turned on
●Immediately after the hybrid sys-
tem is started with the RCTA func-
tion on
●When the sensors cannot detect a
vehicle due to obstructions
●When towing a trailer
●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

2964-5. Using the driving support systems
specified are installed
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle turns 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 distanc e between your
vehicle and metal objects, such as
a guardrail, wall, sign, 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 car rier, 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 the rear bumper,
such as from a sprinkler
●Moving objects (f lags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distance between your
vehicle and a guardrail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters

2974-5. Using the driving support systems
4
Driving
●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 vehicle is raised
or lowered due to the carried load
*: If equipped
■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 back-
ing up. ( P.304)
■Parking Support Brake
function (rear-crossing
vehicles) (if equipped)
Rear radar sensors are used to
PKSB (Parking Sup-
port 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

2984-5. Using the driving support systems
detect approaching vehicles in
the detection area behind the
vehicle when backing up.
(P.307)
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 not operate.
The detection capa bilities 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.
●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 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
●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
●When your vehicle is towing a
trailer or during emergency tow-
ing

2994-5. 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.112)
1 Select of the multi-infor-
mation display and then
press .
2 Press or to select
and then press .
When the Parking Support Brake is
disabled, the PKSB OFF indicator
( P.84) illuminates on the instru-
ment cluster.
To re-enable the system when it was disabled, select on the
multi-information
display, select
and turn it on. If the system is dis-
abled, it will remain off even if the
power switch is turned to ON after
the power switch has been turned
off.
If the hybrid system output restric-
tion control or brake control oper-
ates, a buzzer will sound and a
message will be displayed on the
audio system screen and
multi-information display, to alert
the driver.
Depending on the situation, hybrid
system output restriction control will
operate to either limit acceleration
or restrict output as much as possi-
ble.
 Hybrid system output restric-
tion control is operating
(acceleration restriction)
Acceleration greater than a certain
amount is restric ted by the system.
Audio system screen (Panoramic
view monitor) (if equipped): No
warning displayed
Multi-information display: “Object
Detected Acceleration Reduced”
PKSB OFF indicator: Not illumi-
nated
Buzzer: Does not sound
 Hybrid system output restric-
tion control is operating (out-
put restricted as much as
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 power
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 driving for a while,
clean the sensors and their sur-
rounding area on the bumpers.)
Enabling/Disabling the
Parking Support Brake
Displays and buzzers for
hybrid system output
restriction control and
brake control

3034-5. Using the driving support systems
4
Driving
Brake) on (P.299)
●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 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-
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 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.

3044-5. Using the driving support systems
*: 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