TOYOTA PRIUS PRIME 2023 Owners Manual

3715-5. Using the driving support systems
5
Driving
Object
Calculated vehicle route
When the vehicle is moving, the side sensors or side cameras can
detect objects. While the vehicle is moving, if a detected object can
no longer be detected by the side sensors or side cameras, the loca-
tion of the object relative to the vehicle is estimated. If the object is
determined to be in the estimated path of the vehicle, the object
warning function will operate.
Object detected by side sensors or side cameras
1 The vehicle is stopped and objects along the sides of the vehicle
are not detected.
2 Objects are detected as the vehicle is moving.
3 Even though the objects are outsi de of the detection area of the
side sensors or side cameras, a warning is displayed and a
buzzer sounds.
■The intuitive parking assist
object warning function is oper-
ational when
●The vehicle moves about 23.0 ft.
(7 m) after the hybrid system is
started.
●The R shift position is selected.
●After the shift position has been
changed from R to D, the vehicle has moved approximately 23.0 ft.
(7 m) or less
● switch has been pressed and
the Multimedia Display is dis-
played.
●The front or rear sensor detects a
stationary object.
A
B
A

3725-5. Using the driving support systems
■Detection of objects along the
sides of the vehicle
●Objects along the sides of the
vehicle are not instantaneously
detected. The location of objects
in relation to the vehicle is esti-
mated after they are first detected
by the front or rear side sensors,
or side cameras. Therefore, after
the power switch is changed to
ON, even if an object is along the
side of the vehicle, it may not be
detected until the vehicle has
been driven a small amount and
the side sensors or side cameras
completely scan the areas along
the sides of the vehicle.
●If a vehicle, person, animal, etc., is
detected by a side sensors or side
cameras, but then leaves the
detection area of the side sensors
or side cameras, the system will
assume the object has not moved.
WARNING
■Side sensors and side cam-
eras
In situations such as the following,
the function may not operate cor-
rectly, possibly leading to an acci-
dent. Proceed carefully.
●When starting off shortly after
the power switch is turned to
ON and a small vehicle or other
object which cannot be detected
by a front side sensor is next to
the vehicle.
In the situation shown in the fol-
lowing illustration, even if the
vehicle starts off, the vehicle on
the left will not be detected and
the object warning function will
not operate.
●When an object or person is in a
position which cannot be
detected by the side sensors or
side cameras.
●When, after the side sensors
have completed scanning the
areas along the sides of the
vehicle, a vehicle, person, or
other object approaches the
side of the vehicle and cannot
be detected.
●When the outside rear view mir-
ror is closed, the side sensors
or side cameras cannot detect
objects.
●If the 12-volt battery was dis-
charged or has been removed
and installed, fold and extend
the outside rear view mirrors.

3735-5. Using the driving support systems
5
Driving
*: If equipped
Meter control switches
Operate the meter control switches
to enable/disable the RCTA func-
tion on the multi-information dis-
play.
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
( P.152) will blink and a buzzer
will sound.
Multimedia Display
If a vehicle approaching from the
right or left at the rear of the vehicle
is detected, the RCTA icon
(  P.374) for the detected side will
be displayed on the Multimedia Dis-
play. This illustration
* shows an
example of a vehicle approaching
from both sides of the vehicle.
*: Depending on the vehicle grade and equipped options, the actual
screen may be different from this
illustration.
Driving assist information
indicator
Illuminates when the RCTA is
turned off. At this time, a message
RCTA (Rear Cross
Traffic 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.
■To ensure the system can
operate properly
 P.355
System components
A
B
C
D

3745-5. Using the driving support systems
will be displayed on the multi-infor-
mation display.
The RCTA can be enabled/dis-
abled through a customize set-
ting. (P.618)
When the RCTA function is off,
the driving assist information
indicator ( P.152) will illumi-
nate and a message will be dis-
played on the multi-information
display. Each time the power
switch is turned to ON, the
RCTA function is enabled.
■Outside rear view 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.
■Rear side radar sensors
 P.355
■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 and alerts the driver of
the presence of such vehicles
by flashing the outside rear view mirror indicators and sounding a
buzzer.
Approaching vehicles
Detection areas of approach-
ing vehicles
■RCTA icon display
When a vehicle approaching
from the right or left at the rear
of the vehicle is detected, the
following will be displayed on
the Multimedia Display.
• Example (Panoramic view monitor): Vehicles are
approaching from both sides
of the vehicle
■RCTA function detection
areas
The areas that vehicles can be
detected in are outlined below.
Turning the RCTA func-
tion on/off
RCTA function
A
B

3755-5. Using the driving support systems
5
Driving
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 position 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 of the RCTA,
intuitive parking assist, and RCD (if
equipped) can be adjusted all
together through a customize set-
ting. ( P.618)
■Muting a buzzer temporarily
When an object is detected, the temporary mute switch is displayed
on the Multimedia Display.
Select the switch to
mute the buzzer
of the intuitive parking assist, RCTA,
and RCD (if equipped) all together.
Mute will be canceled automatically
in the following situations:
●When the shift position 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 operating 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 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-
Approaching
vehicle speed Approximate
alert distance
34 mph (56
km/h) (fast)98 ft. (30 m)
5 mph (8 km/h) (slow)13 ft. (4 m)
A

3765-5. Using the driving support systems
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 carrier, 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 with the vehicle
●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 ar e installed
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up

3775-5. Using the driving support systems
5
Driving
●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 detecting 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 carrier, 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 (flags, 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

3785-5. Using the driving support systems
●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 towing with the vehicle
*: If equipped
RCD (Rear Camera
Detection) function*
When the vehicle is back-
ing up, the rear camera
detection function can
detect pedestrians in the
detection area behind the
vehicle. If a pedestrian is
detected, a buzzer will
sound and an icon will be
displayed on the Multimedia
Display to inform the driver
of the pedestrian.
WARNING
■Cautions regarding the use of
the system
The recognition and control capa-
bilities for this system are limited.
The driver should always drive
safely by always being responsi-
ble without over relying on the
system and have a understanding
of the surrounding situations.
■To ensure the system can
operate properly
Observe the following, otherwise
there is the danger that could lead
to an accident.
●Always clean the camera with-
out damaging it.
●Do not install market electronic
parts (such as Illuminated
license plate, fog lamps, etc.) in
the camera vicinity.

3795-5. Using the driving support systems
5
Driving
■Location of the rear cameraPedestrian detection icon
Displayed automatically when a
pedestrian is detected behind the
vehicle.
The RCD function can be
enabled/disabled on of the
multi-information display.
(
P.618)
When the RCD function is disabled,
the driving assist information indi-
cator ( P.152) illumina tes, and a
message is displayed on the multi-
information display.
Each time the power switch is
turned off then changed to ON, the
RCD function will be enabled auto-
matically.
If a pedestrian is in the area
behind the vehicle or if the rear
camera detected that a pedes-
trian is approaching the vehicle
from behind, the system urges
WARNING
●Do not subject the camera vicin-
ity to strong impacts. If the vicin-
ity is subjected to a strong
impact, have the vehicle
inspected by your Toyota
dealer.
●Do not disassemble, remodel or
paint the camera.
●Do not attach accessories or
stickers to the camera.
●Do not install market protection
parts (bumper trim, etc.) to the
rear bumper.
●Maintain suitable tire air pres-
sure.
●Make sure the back door is
completely closed.
■RCD function is turned off
In the following situations the sys-
tem turns off. The RCD function
may not operate properly and
thus there is the danger that an
accident may occur.
●The contents mentioned above
are not observed.
●Suspensions other than genu-
ine parts are installed.
System components
RCD display
Turning the RCD function
on/off
When a pedestrian is
detected
A

3805-5. Using the driving support systems
caution from the driver by
sounding the buzzer and dis-
playing the detection of a pedes-
trian on the Multimedia Display
as follows:If a pedestrian is detected in
area
Buzzer: Sounds repeatedly
Pedestrian detection icon:
Blinks
If a pedestrian is detected in
area
Buzzer (When the vehicle is
stationary): Sounds 3 times
Buzzer (When the vehicle is
backing up, when a pedes-
trian approaches the rear of
the vehicle): Sounds repeat-
edly
Pedestrian detection icon:
Blinks
If the system determines that
your vehicle may collide with
a pedestrian in area
Buzzer: Sounds repeatedly Pedestrian detection icon:
Blinks
■The rear camera detection func-
tion is operational when
●The power switch is in ON.
●RCD function is on.
●The shift position is in R.
●Advanced Park is not operating
(vehicles with Advanced Park)
■Setting the buzzer volume
The buzzer volume of the intuitive
parking assist, RCTA, and RCD can
be adjusted all together on of
the multi-information display.
(  P.618)
■Muting a buzzer temporarily
When an object is detected, the
temporary mute switch is displayed
on the Multimedia Display.
Select the switch to mute a buzzer
of the intuitive parking assist, RCTA,
and RCD all together.
Mute will be automatically canceled
in the following situations:
●When the shift position 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 operating function is
disabled manually.
●When the power switch is turned
off.
■Situations in which the system
may not operate properly
●Some pedestrians, such as the
following, may not be detected by
the rear camera detection func-
tion, preventing the function from
operating properly:
• Pedestrians who are bending for-
A
A
B
B
C
C