sensor TOYOTA RAV4 PRIME 2021 Service Manual

3555-5. Using the driving support systems
5
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
*
*
: Depending on conditions, detec- tion of a vehicle and/or object may
occur.
■Conditions under which the
RCTA function may not func-
tion correctly
●The RCTA function may not
detect vehicles correctly in the fol-
lowing 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 parking on a steep incline, such as hills, a dip in the road, etc.
• When an accessory (such as a
bicycle carrier) is installed to the
rear of the vehicle
• When backing up on a slope with
a sharp change in grade • When backing out of a shallow
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 towing a trailer
• When the sensors cannot detect a vehicle due to obstructions
●Instances of the RCTA function
unnecessary detecting a vehicle
and/or object may increase in the
following situations:
• When a vehicle passes by the
side of your vehicle
• When the parking space faces a street and vehicles are being

3565-5. Using the driving support systems
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 an accessory (such as a
bicycle carrier) is installed to the
rear of the vehicle
*: 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
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, navigation system
or multimedia system
screen and a buzzer. Always
check the surrounding area
when using this system.
System components
A
B
C
D

3575-5. Using the driving support systems
5
Driving
is shown on the multi-informa-
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 (Audio system
screen)
When the sensors detect an
object, such as a wall, a graphic
is shown on the navigation sys-
tem (if equipped) or multimedia
system (if equipped) screen
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 obstacle 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.
*: A simplified image is displayed on
the upper corner of the screen
when an obstacle is detected
while magnified display is shown.
Except panoramic view
A simplified image is displayed on
the upper corner of the screen
when an obstacle is detected.
A
B
C
D

3585-5. Using the driving support systems
The Intuitive parking assist can
be enabled/disabled on the
screen of the multi-information
display. (P.177)
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
(  P.163) 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 a fter the power
switch has been turned off.
Turning intuitive parking
assist on/off
WARNING
■Intuitive parking assist pre-
cautions
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 use the sensor at
speeds in excess of 6 mph (10
km/h).
●The sensors’ detection areas
and reaction times are limited.
When moving forward or revers-
ing, check the areas surround-
ing the vehicle (especially the
sides of the vehicle) for safety,
and drive slowly, using the
brake to control the vehicle’s
speed.
●Do not install accessories near
the bumpers as those areas are
within the sensors’ detection
areas.
●The area directly under the
bumpers is not detected.
Thin posts or objects lower than
the sensor may not be detected
when approached, even if they
have been detected once.
■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.
●The vehicle is equipped with a
commercial fender pole, wire-
less antenna or fog lights.
●The front or rear bumper or a
sensor receives a strong
impact.
●A non-genuine Toyota suspen-
sion (lowered suspension, etc.)
is installed.
●Towing eyelets (if equipped) are
installed.
●A backlit license plate is
installed.
●When using an automatic car
wash

3595-5. Using the driving support systems
5
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).
●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 co vered 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 warning message is displayed
even if the sensor is clean, there
may be a sensor malfunction. Have
the vehicle inspected by your
Toyota dealer.
■If “Parking Assist Unavailable”
is displayed on the multi-infor-
mation display
Water may be continuously 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 det ection 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
WARNING
■When using the intuitive park-
ing assist
In the following s ituations, the
system may not function correctly
due to a sensor mal function, etc.
Have the vehicle checked by your
Toyota dealer.
●The intuitive parking assist
operation display flashes or
shows continuously, and a
buzzer sounds when no objects
are detected.
●If the area around a sensor col-
lides with something, or is sub-
jected to strong impact.
●If the bumper or grille collides
with something.
●If the display flashes or is dis-
played continuously and a
buzzer does not sound, except
when the mute function has
been turned on.
■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
c los e to th e se ns or s a s do ing so
may cause a sens or to malfunc-
tion.

3605-5. Using the driving support systems
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 possibilit y that the object
will come within 9.8 in. (25 cm)
before the display is shown and
the warning buzzer 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
sound of this system due to the
buzzers of other systems.
■Conditions under which the
function may not function cor-
rectly
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.
●A sensor is covered in any way.
●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.
●The vicinity of the vehicle is noisy
due to vehicle horns, motorcycle
engines, air brakes of large vehi-
cles, or other l oud noises produc-
ing ultrasonic waves.
●There is another vehicle equipped with parking assist
sensors in the
vicinity.
●A sensor is coated with a sheet of
spray or heavy rain.
●If a sensor is hit by a large amount
of water, such as when driving on
a flooded road.
●If the vehicle is significantly tilted.
●The vehicle is approaching a tall
or curved curb.
●If objects draw too close to the
sensor.
■Objects which may not be prop-
erly detected
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.
■Certification (Canada only)
This ISM device complies with
Canadian ICES-001.

3615-5. Using the driving support systems
5
Driving
■Detection range of the sen-
sorsApproximately 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.
■Distance display
When an object is detected by a sensor, the approximate distance to
the object will be displayed on the multi-information display, naviga-
tion system (if equipped) or multimedia system (if equipped) sc reen.
(As the distance to the object becomes short, the distance segm ents
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)
Sensor detection display,
object distanceA
B
C
Multi-information displayNavigation or multimedia system screen

3625-5. Using the driving support systems
Approximate distance to object: 2.0 ft. (60 cm) to 1.5 ft. (45 cm)
 Approximate distance to object: 1.5 ft. (45 cm) to 1.0 ft. (30 cm)
 Approximate distance to object: 1.0 ft. (30 cm) to 0.5 ft. (15 cm)
*: The distance segments will blink slowly.
Approximate distance to object: Less than 0.5 ft. (15 cm)
*: 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
Multi-information displayNavigation or multimedia system screen
Multi-information displayNavigation or multimedia system screen
Multi-information display*Navigation or multimedia system screen
Multi-information display*Navigation or multimedia system screen

3635-5. Using the driving support systems
5
Driving
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 buzzer will be muted in the
following situations:
• The distance betw een 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 of your vehicle.
However, if another object is
detected or the situation changes
while the buzzer is muted, the
buzzer begins sounding again.
●To mute the buzzer sound
The buzzer can be temporarily
muted by pressing of the meter
control switches w hile a suggestion
that says mute is available is shown
on the multi-info rmation display.
●When the mute is canceled
Mute will be automat ically canceled
in the followin g situations.
• When the shift position is changed
• When the vehicle speed has reached or excee ded a certain
speed
• When the Intuitive parking assist is turned off once and turned on
again
• When the power switch is turned off once and tur ned to ON again
■Customization
The buzzer volume can be adjusted
on the multi-inform ation display.
(  P.177)
*: If equipped
■Parking Support Brake
function (static objects)
 P.368
■Parking Support Brake
function (rear-crossing
vehicles)
 P.373
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
collision.
PKSB (Parking Support
Brake) system

3645-5. Using the driving support systems
The Parking Support Brake can
be enabled/disabled on the
screen of the multi-information
display. All of the Parking Sup-
port Brake functions (static
objects and rear-crossing vehi-
cles) are enabled/disabled
simultaneously. (P.177)
When the Parking Support Brake is
disabled, the PKSB OFF indicator
(  P.163) illuminates on the multi-
information display.
To re-enable the system, select
on the multi-information 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 bee n turned off.
WARNING
■Limitations of the Parking
Support Brake 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 su rroundings 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 su rroundings 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. Addition-
ally, even if the system has
stopped the vehicle, it is neces-
sary to depress the brake pedal
immediately as brake control
will be canceled after approxi-
mately 2 seconds.
●Do not attempt to test the oper-
ation of the Parking Support
Brake system yourself such as
intentionally driving to a vehicle
or wall.
Depending on the situations,
the system may not operate
properly, possibly leading to an
accident.
NOTICE
■If “Parking Support Brake
Unavailable” is displayed on
the multi-information display
and the PKSB OFF indicator
illuminates
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-
m a l . ( I f t h e s y s t e m d o e s n o t r e t u r n
to normal after dr iving for a while,
clean the sensors and their sur-
rounding area on the bumpers.)
Enabling/Disabling the
Parking Support Brake