sensor TOYOTA RAV4 PRIME 2023 Service Manual

3855-5. Using the driving support systems
5
Driving
●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
The buzzer volume can be adjusted
on the multi-inform ation display.
(  P.191, 203)
■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 next to your vehi-
cle
*
●The distance between the sensor
and approaching vehicle gets too
close
*: Depending on conditions, detec- tion 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 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 c arrier, or snow
plow.
●When backing up on a slope with
a sharp change in grade.
●When backing out of a sharp
angle parking spot.

3865-5. Using the driving support systems
●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
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
unnecessarily 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
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 c
arrier, or snow
plow.
●When a vehicle passes by the
side of your vehicle.
●When a detected vehicle turns
while approaching the vehicle.

3875-5. Using the driving support systems
5
Driving
●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 (flags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.).
●When the distanc e between your
vehicle and a guardr ail, 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 vehicle is raised
or lowered due to the carried load.
*: If equipped
■Location and types of sen-
sors
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
■Display (Multi-information
display)
When the sensors detect an
object, such as a wall, a graphic
is shown on the multi-informa-
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 or Multimedia Dis-
play and a buzzer. Always
check the surrounding area
when using this system.
System components
A
B
C
D

3885-5. Using the driving support systems
tion display depending on the
position and distance to the
object.Front corner sensor detection
Front center sensor detec-
tion
*1
Rear corner sensor detec-
tion
*2
Rear center sensor detec-
tion
*2
*1: Displayed when the shift lever is in a driving position
*2: Displayed when the shift lever is in R
■Display (Multimedia Dis-
play)
When the sensors detect an
object, such as a wall, a graphic
is shown on the Multimedia Dis-
play depending on the position
and distance to the object.
 When the Toyota parking
assist monitor (if equipped) is
displayed
A simplified image is displayed on
the upper corner of the screen
when an obstacl e is detected.
When the panoramic view
monitor (if equipped) is dis-
played
Panoramic view
A graphic is shown when the pan-
oramic view monitor is displayed.
Except panoramic view
A simplified image is displayed on
the upper corner of the screen
when an obstacle is detected.
A
B
C
D

3895-5. Using the driving support systems
5
Driving
The Intuitive parking assist can
be enabled/disabled on the
screen of the multi-information
display. (P.191, 203)
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
(  P.170) illuminate s on the multi-
information display.
To re-enable the system, select
on the multi-inform ation display,
select and turn it on.
If the system is disabled, 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 to the degree of
recognition accuracy and control
performance that this system can
provide, do not ov erly rely on this
system. The driver is always
responsible for paying attention to
the vehicle’s 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.
■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.

3905-5. Using the driving support systems
■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).
●The shift lever is in a position
other than P.
■If “Clean Parking Assist Sen-
sor” is displayed on the multi-
information display
A sensor may be covered with ice,
snow, dirt, etc. R emove 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 warning message is displayed
even if the sensor is clean, there
may be a sensor malfunction. Have
the vehicle insp ected by your
Toyota dealer.
■If “Parking Assi st Unavailable”
is displayed on the multi-infor-
mation display
Water may be con tinuously flowing over the sensor surface, such as in
a heavy rain. When the system
determines that it is normal, the sys-
tem will return to normal.
■Sensor detection information
●The sensor’s detection areas are
limited to the areas around the
vehicle’s front and rear bumpers.
●The following situations may occur
during use.
• Depending on the shape of the
object and other factors, the
detection distance may shorten,
or detection may be impossible.
• Detection may be impossible if static objects draw too close to the
sensor.
• There will be a short delay between static object detection
and display (warning buzzer
sounds). Even at low speeds,
there is a possibility that the object
will come within 9.8 in. (25 cm)
before the display is shown and
the warning buzzer sounds.
• It might be diffic ult to hear the
buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be diffi cult to hear the
sound of this sys tem due to the
buzzers of other systems.
■Objects which the system may
not properly detect
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular atte ntion to the fol-
lowing 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.
WARNING
●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.

3915-5. Using the driving support systems
5
Driving
■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 or ice on a sen-
sor. (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 abnor-
mally, 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 other 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 gr ound, not perpen-
dicular to the v ehicle 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 c arrier, or snow
plow.
●If the front of the v ehicle is raised
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 tire chains, a compact
spare tire or an emergency tire
puncture repai r kit are 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 towa rd a banner,
flag, low-hanging branch or boom
barrier (such as those used at rail-
road crossings, toll gates and

3925-5. Using the driving support systems
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 other vehicles or
other devices which produce ultra-
sonic waves are near the vehicle.
●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.
●The vehicle is approaching a tall
or curved curb.
●Driving close to columns (H-
shaped steel beams, etc.) in multi-
story parking garages, construc-
tion 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 tire chains, a compact
spare tire or an emergency tire
puncture repai
r kit are used.
■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
Sensor detection display,
object distance
A
B
C

3935-5. Using the driving support systems
5
Driving
are extremely close to the vehicle.
The range of the sensors may change depending on the shape of
the object, etc.
■Distance display
When an object is detected by a sensor, the approximate distance to
the object will be displayed on the multi-information display o r Multi-
media Display. (As the distance to the object becomes short, th e dis-
tance segments may blink.)
The images may differ from that shown in the illustrations.
 Approximate distance to object
• Front center sensor: 3.3 ft . (100 cm) to 2.0 ft. (60 cm)
• Rear center sensor : 4.9 ft. (150 cm) to 2.0 ft. (60 cm)
*1: Vehicles with 7-inch mu lti-information display
*2: Vehicles with 12.3-inch m ulti-information display
Approximate distance to object: 2.0 ft. (60 cm) to 1.5 ft. (45 cm)
*1: Vehicles with 7-inch multi-information display
*2: Vehicles with 12.3-inch m ulti-information display
Approximate distance to object: 1.5 ft. (45 cm) to 1.0 ft. (30 cm)
*1: Vehicles with 7-inch multi-information display
*2: Vehicles with 12.3-inch m ulti-information display
Multi-information displayMultimedia Display
*1*2
Multi-information displayMultimedia Display
*1*2
Multi-information displayMultimedia Display
*1*2

3945-5. Using the driving support systems
Approximate distance to object: 1.0 ft. (30 cm) to 0.5 ft. (15 cm)
*1: Vehicles with 7-inch multi-information display
*2: Vehicles with 12.3-inch m ulti-information display
*3: The distance segments will blink slowly.
Approximate distance to object: Less than 0.5 ft. (15 cm)
*1: Vehicles with 7-inch mu lti-information display
*2: Vehicles with 12.3-inch m ulti-information display
*3: The distance segments will blink rapidly.
■Buzzer operation and dis-
tance to an object
A buzzer sounds when the sen-
sors are operating.
 The buzzer beeps faster as
the vehicle approaches an
object.
When the vehicle comes
within approximately 1.0 ft.
(30 cm) of the object, the
buzzer sounds continuously.
 When 2 or more sensors
simultaneously detect a static
object, the buzzer sounds for
the nearest object.
 Even when the sensors are
operating, the buzzer will be muted in some situations.
(automatic buzzer mute func-
tion)
■Muting the buzzer sound
●Automatic buzzer mute function
Even when the sensors are operat-
ing, the buzz er will be muted in the
following situations:
• The distance between the vehicle and the detected object does not
become shorter (except when the
distance between the vehicle and
object is 1.0 ft. [30 cm] or less).
• Your vehicle is moving away from
the object.
• There are no detectable objects entering the path o f your vehicle.
However, if another object is
detected or the situation changes
while the buzzer is muted, the
Multi-information display*3Multimedia Display
*1*2
Multi-information display*3Multimedia Display
*1*2