sensor TOYOTA RAV4 2021 (in English) Service Manual

2754-5. Using the driving support systems
4
Driving
Except panoramic view
A simplified image is displayed
on the upper corner of the
screen when an obstacle is
detected.
The Intuitive parking assist can
be enabled/disabled on the
screen of the multi-information
display. ( P.94)
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
(  P.79) illuminates 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 t he engine switch
is turned to ON after the engine
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.

2764-5. Using the driving support systems
■The system can be operated
when
●The engine 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 “Parking Assist Unavailable
Clean Parking Assist Sensor” is
displayed on the multi-informa-
tion 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.
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.
●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 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
close to the sensors as doing so
may cause a sensor to malfunc-
tion.

2774-5. Using the driving support systems
4
Driving
■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 re turn to normal.
●Initialization may not have been
performed after a battery terminal
was disconnected and recon-
nected. Initialize the system.
(  P.277)
If this message continues to be
displayed even after initialization,
have the vehicle inspected by
your Toyota dealer.
■If a battery terminal has been
disconnected and reconnected
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 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 possibilit y that the object
will come within 11. 9 in. (30 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. Part icular instances
where this may occur are listed
below.
●There is dirt, snow or ice on a sen-
sor. (Cleaning th e sensors will
resolve this problem.)
●A sensor is froz en. (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 cove red 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 lou d 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.

2784-5. Using the driving support systems
Pay particular attention 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.
■Detection range of the sen-
sors
Approximately 3.3 ft. (100
cm)
Approximately 4.9 ft. (150
cm)
Approximately 2.1 ft. (63 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.
Sensor detection display,
object distance
A
B
C

2794-5. Using the driving support systems
4
Driving
Approximate distance to object
• Front center sensor: 3.3 ft . (100 cm) to 2.1 ft. (63 cm)
• Rear center sensor : 4.9 ft. (150 cm) to 2.1 ft. (63 cm)
Approximate distance to object: 2.1 ft. (63 cm) to 1.6 ft. (48 cm)
 Approximate distance to object: 1.6 ft. (48 cm) to 1.1 ft. (34 cm)
 Approximate distance to object: 1.1 ft. (34 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.
Multi-information displayNavigation or multimedia system screen
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

2804-5. Using the driving support systems
■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 1.1 ft.
(34 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 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 1.1 ft. [34 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 while a suggestion
that says mute is available is shown
on the multi-information display.
●When the mute is canceled
Mute will be automat ically canceled
in the following situations.
• When the shift position is changed
• When the vehicle speed has reached or exceeded a certain
speed
• When the Intuitive parking assist is turned off on ce and turned on
again
• When the engine switch is turned off once and turned to ON again
■Customization
The buzzer volume can be adjusted
on the multi-information display.
(  P.94)

2824-5. 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.94)
When the Parking Support Brake is
disabled, the PKSB OFF indicator
( P.79) illuminates 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 t he engine switch
is turned to ON after the engine
switch has been turned off.
If the engine output restriction
control or brake control oper-
ates, a buzzer will sound and a
message will be displayed on
the multi-information display,
navigation system (if equipped)
or multimedia system (if
equipped) screen, to alert the
driver.
Depending on the situation, engine
output restriction control will oper-
ate to either limit acceleration or
restrict output as much as possible.
 Engine output restriction con-
trol is operating (acceleration
restriction)
Acceleration greater than a certain
amount is restric ted by the system.
Navigation system (if equipped) or
multimedia system (if equipped)
screen: No warning displayed
Multi-information display: “Object
Detected Acceleration Reduced”
PKSB OFF indicator: Not illumi-
nated
Buzzer: Does not sound
 Engine output restriction con-
trol is operating (output
restricted as much as possi-
ble)
The system has determined that
stronger-than-normal brake opera-
tion is necessary.
Navigation system (if equipped) or
multimedia system (if equipped)
NOTICE
■If “Parking Support Brake
Unavailable” is displayed on
the multi-information 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 does not return
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
Display and buzzer for
engine output restriction
control and brake control

2844-5. Using the driving support systems
trol begins operating (System
determines that possibility of
collision with detected object
is high)
 Figure 3: When engine out-
put restriction control and
brake control operates
Engine output
Braking force
Time
Engine output restriction con-
trol begins operating (System
determines that possibility of
collision with detected object
is high)
Brake control begins operat-
ing (System determines that
possibility of collision with
detected object is extremely
high)
■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 approximate
ly 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 is disabled due to
operation of the Parking Support
Brake, either enable the system
again ( P.282), or turn the engine
switch to OFF and then back to ON.
Additionally, if the object becomes
no longer in the traveling direction of
the vehicle or if the traveling direc-
tion of the vehicle changes (such as
changing from moving forward to
backing up, or from backing up to
moving forward), t he system will be
re-enabled automatically.
■If “Parking Support Brake
Unavailable” is displayed on
the multi-information display
and the PKSB OFF indicator is
flashing
●If this message i s displayed, a
sensor on the front or rear bumper
may be dirty. Clean the sensors
and their surrounding area on the
bumpers.
●Initialization may not have been
performed after a battery terminal
was disconnected and recon-
nected. Initialize the system.
(  P.285)
If this message continues to be
displayed even afte r initialization,
have the vehicle inspected by
your Toyota dealer.
■If “Parking Support Brake
Unavailable” and “Parking
Assist Unavailab le Clean Park-
ing Assist Sensor” are dis-
played on the multi-information
display and the PKSB OFF indi-
cator is flashing
●A sensor may be covered with ice,
snow, dirt, etc. In this case,
remove the ice, snow, dirt, etc.,
from the sensor t o return the sys-
tem to normal. If this message is
A
B
C
D
E

2854-5. Using the driving support systems
4
Driving
shown even after removing dirt
from the sensor, or shown when
the sensor was not dirty to begin
with, have the vehicle inspected at
your Toyota 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 battery terminal has been
disconnected and reconnected
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.

2864-5. 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 Support Brake fu nction (static objects)*
If the sensors detect a static object, such as a wall, in the t rav-
eling 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 position being selected, 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