sensor TOYOTA HIGHLANDER HYBRID 2023 Service Manual

2794-5. Using the driving support systems
4
Driving
etc. from the rear bumper. Addition-
ally, the sensors may not operate
normally when driving in extremely
hot or cold environments.
■When “Blind Spot Monitor Mal-
function Visit Your Dealer” is
shown on the multi-information
display
There may be a sensor malfunction
of misaligned. Have the vehicle
inspected by your Toyota dealer.
■Customization
Some functions can be customized.
(  P.510)
WARNING
■To ensure the system can
operate properly
Blind Spot Monitor sensors are
installed behind the left and right
sides of the rear bumper respec-
tively. Observe the following to
ensure the Blind Spot Monitor can
operate correctly.
●Keep the sensors and the sur-
rounding areas on the rear
bumper clean at all times.
If a sensor or its surrounding area
on the rear bumper is dirty or cov-
ered with snow, the Blind Spot
Monitor may not operate and a
warning message (
P.278) will
be displayed. In this situation,
clear off the dirt or snow and drive
the vehicle with the operation con-
ditions of the BSM function
(
P.281) satisfied for approxi-
mately 10 minutes. If the warning
message does not disappear,
have the vehicle inspected by
your Toyota dealer.
●Do not attach a ccessories,
stickers (including transparent
stickers), aluminum tape, etc. to
a sensor or its surrounding area
on the rear bumper.
●Do not subject a sensor or its
surrounding area on the rear
bumper to a strong impact.
If a sensor is moved even
slightly off position, the system
may malfunction and vehicles
may not be detected correctly.
In the following si tuations, have
your vehicle inspected by your
Toyota dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sen- sor is scratched or dented, or
part of them h as become dis-
connected.

2804-5. Using the driving support systems
The Blind Spot Monitor can
be enabled/disabled on of
the multi-information dis-
play.(P.510)
When the BSM function is dis-
abled, the BSM OFF indicator
illuminates. (Each time the
power switch is turned off then
changed to ON, the Blind Spot
Monitor will be enabled auto-
matically.)
■Objects that can be detected while driving
The Blind Spot Monitor uses rear side radar sensors to detect the fol-
lowing vehicles traveling in adjacent lanes and advises the driver of
the presence of such vehicles via the indicators on the outside rear
view mirrors.
Vehicles that are traveling in areas that are not visible using the
outside rear view mirrors (the blind spots)
Vehicles that are approaching r apidly from behind in areas that
are not visible using the outside rear view mirrors (the blind spots)
■Detection range while driving
The areas that vehicles can be detected in are outlined below.
WARNING
●Do not disassemble the sensor.
●Do not modify the sensor or sur-
rounding area on the rear
bumper.
●If a sensor or th e rear bumper
needs to be removed/installed
or replaced, contact your Toyota
dealer.
●Do not paint the rear bumper
any color other than an official
Toyota color.
Turning the Blind Spot
Monitor on/off
Blind Spot Monitor operation

2824-5. Using the driving support systems
from your vehicle*
●Vehicles which are being over-
taken rapidly by your vehicle*
*
: Depending on the conditions, detection of a vehicle and/or
object may occur.
■Conditions under which the
system may not function cor-
rectly
●In the following situations, vehi-
cles may not be detected correctly
(while driving):
• 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 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 the distanc e between your
vehicle and a following vehicle is
short
• When there is a significant differ- ence in speed between your vehi-
cle and the vehicle that enters the
detection area
• When the difference in speed between your vehicle and another
vehicle is changing
• When a vehicle enters a detection area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection
area
• When driving up and down con- secutive steep inclines, such as
hills, dips in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or
uneven surfaces
• When vehicle lanes are wide, or when driving on the edge of a
lane, and the vehicle in an adja-
cent lane is far away from your vehicle
• When an accessory (such as a bicycle carrier) is installed to the
rear of the vehicle
• When there is a significant differ- ence in height between your vehi-
cle and the vehicle that enters the
detection area
• Immediately after the Blind Spot
Monitor is turned on
• When towing with the vehicle●Instances of unnecessary detec-
tion may increase in situations
such as the following (while driv-
ing):
• When the sensor is misaligned due to a strong impact to the sen-
sor or its surrounding area
• When the distance between your vehicle and a guardrail, wall, etc.
that enters the detection area is
short
• When driving up and down con-
secutive steep inclines, such as
hills, dips in the road, etc.
• When vehicle lanes are narrow, or
when driving on the edge of a
lane, and a vehicle traveling in a
lane other than the adjacent lanes
enters the detection area
• When driving on r oads with sharp
bends, consecutive curves, or
uneven surfaces
• When the tires are slipping or spinning
• When the distance between your vehicle and a following vehicle is
short
• When an accessory (such as a bicycle carrier) is installed to the
rear of the vehicle
• When towing with the vehicle

2834-5. Using the driving support systems
4
Driving
*: If equipped
■Types of sensorsFront corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
■Display
When the sensors detect an
object, such as a wall, a graphic
is shown on the multi-informa-
tion display, head-up display (if equipped) and audio system
screen depending on the posi-
tion and distance to the object.

Multi-information display and
head-up display
Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
 Audio system screen (vehi-
cles with a Toyota parking
assist monitor)
When the R shift le ver is selected,
a simplified image is displayed on
the audio system screen.
 Audio system screen (vehi-
cles with a Panoramic view
monitor)
A graphic will be di splayed on the
audio system screen.
Intuitive parking
assist*
The distance from your
vehicle to objects, such as a
wall, when parallel parking
or maneuvering into a
garage is measured by the
sensors and communicated
via the multi-information
display, head-up display (if
equipped), audio system
screen and a buzzer. Always
check the surrounding area
when using this system.
System components

2844-5. Using the driving support systems
Use the meter control switches
to enable/disable the intuitive
parking assist. (P.112)
1 Select of the multi-infor-
mation display and then
press .
2 Press or to select
and then press .
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
( P.84) illuminates.
To re-enable the system, select on the multi-information dis-
play, select and turn it on. If
the system is di sabled, it will
remain off even if the power
switch is turned to ON after the
power switch has been turned
off.
Turning intuitive parking
assist on/off
WARNING
■Cautions regarding the use of
the system
There is a limit t o the degree of
recognition accuracy and control
performance that this system can
provide, do not overly rely on this
system. The driver is always
responsible for paying attention to
the vehicle’ surroundings and
driving safely.
■To ensure the system can
operate properly
Observe the following precau-
tions.
Failing to do so may result in the
vehicle being unable to be driven
safely and possibly cause an acci-
dent.
●Do not damage the sensors,
and always keep them clean.
●Do not attach a sticker or install
an electronic component, such
as a backlit licen se plate (espe-
cially fluorescent type), fog
lights, fender po le or wireless
antenna near a radar sensor.
●Do not subject the surrounding
area of the sensor to a strong
impact. If subjected to an
impact, have the vehicle
inspected by your Toyota
dealer. If the front or rear
bumper needs to be
removed/installed or replaced,
contact your Toyota dealer.
●Do not modify, disassemble or
paint the sensors.
●Do not attach a license plate
cover.
●Keep your tires properly
inflated.

2854-5. Using the driving support systems
4
Driving
■The system can be operated
when
●The power switch is in ON.
●Intuitive parking assist function is
on.
●The vehicle speed is less than
about 6 mph (10 km/h).
●A shift lever other than P.
■If “Parking Assist Unavailable”
is displayed on the multi-infor-
mation display
●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.
●Initialization may not have been
performed after a battery terminal
was disconnected and recon-
nected. Initialize the system.
( P.285) If this message contin-
ues to be displayed even after ini-
tialization, have the vehicle
inspected by your Toyota dealer.
■If “Parking Assist Unavailable
Clean Parking Assist Sensor” is
displayed on the multi-informa-
tion display
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.
Also, due to ice forming on a sensor
at low temperatures, a warning
message may be displayed or the
sensor may not be able to detect an
object. Once the ice melts, the sys-
tem will return 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.
■Sensor detection information
●The following situations may occur
during use.
• The sensor's detec tion areas are
limited to the areas around the
vehicle front and rear bumpers.
• Depending on the shape of the object and other factors, the
detection distance may shorten, or
detection may be impossible.
• If an object is extremely close to a sensor, it may not be detected.
• There will be a short delay
between object detection and dis-
play. Even at low speeds, there is
a possibility that the object will
come within the sensor’s detec-
tion areas before the display is
shown and the warning beep
WARNING
■When to disable the function
In the following situations, disable
the function as it may operate
even though there is no possibility
of a collision.
●Failing to observe the warnings
above.
●A non-genuine Toyota suspen-
sion (lowered suspension, etc.)
is installed.
■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 sens or to malfunc-
tion.

2864-5. Using the driving support systems
sounds.
• It might be difficult to hear the buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be difficult to hear the
buzzer if buzzers for other sys-
tems are sounding.
■Objects which the system may
not be properly detected
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular attention to the follow-
ing objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials
that absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections
projecting outwards in the direc-
tion of your vehicle
People may not be detected if they
are wearing certain types of cloth-
ing.
■Situations in which the system
may not operate properly
Certain vehicle conditions and the
surrounding 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, water drops 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 dis-
play may be displayed abnormally,
or objects, such as a wall, may not
be detected.
●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
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.
●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 ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the vehicle traveling
direction, uneven, 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,
motorcycle, 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 pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow.
●If the front of the v ehicle is raised

2874-5. Using the driving support systems
4
Driving
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
possibility of a collision
In some situations, such as the fol-
lowing, the system may operate
even though there is no possibility of
a collision.
●When driving on a narrow road.
●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 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 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
ice on 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
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 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.
●The vehicle is approaching a tall
or curved curb.
●Driving close to columns
(H-shaped steel beams, etc.) in
multi-story parking garages, con-
struction 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.

2884-5. Using the driving support systems
■Adjusting the buzzer vol-
ume
The buzzer volume can be
adjusted on the multi-informa-
tion display.
Use the meter control switches
to change settings. ( P. 1 1 2 )
1 Select of the multi-infor-
mation display and then
press .
2 Press or to select
and 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 there is malfunction in
a sensor or the system is tem-
porarily unavailable.
 When the operating function
is disabled manually. 
When the power switch is
turned off.
■Detection range of the sen-
sors
Approximately 3.3 ft. (100
cm)
Approximately 4.9 ft. (150
cm)
Approximately 2.0 ft. (60 cm)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect objects that
are extremely clos e to the vehicle.
The range of the sensors may
change depending on the shape of
the object, etc.
Setting the buzzer volume
Sensor detection display,
object distance

2894-5. Using the driving support systems
4
Driving
■Multi-information display, head-up display (if equipped) and
audio system screen
When an object is detected by a sensor, the approximate distanc e to
the object will be displayed on th e multi-information display, audio
system screen, and head-up display (if equipped). (As the dista nce
to the object becomes short, the distance segments may blink.)
 Approximate distance to object: 4.9 ft. (150 cm) to 2.0 ft. (60
cm)
*(Rear center sensor)
*: Automatic buzzer mute function is enabled. ( P.290)
 Approximate distance to object: 3.3 ft. (100 cm) to 2.0 ft. (60 cm)*
(Front center sensor)
*: Automatic buzzer mute function is enabled. ( P.290)
 Approximate distance to object: 2.0 ft. (60 cm) to 1.5 ft. (45 cm)*
*: Automatic buzzer mute function is enabled. (P.290)
Multi-information dis-
playAudio system screenHead-up display
Multi-information dis-playAudio system screenHead-up display
Multi-information dis-playAudio system screenHead-up display