TOYOTA PRIUS PRIME 2023 Owners Manual

3615-5. Using the driving support systems
5
Driving
tor, buzzer, multi-information display, and voice notification.Vehicle or bicycle which has a high possibility of colliding with a
door (other than the back door) when opened
■The safe exit assist detection areas
The areas that vehicles can be detected in are outlined below.
Approximately 145 ft. (45 m) rearward from the front door
*
*: The faster a vehicle or bicycle is approaching, the distance at which an
outside rear view mirror indicato r will illuminate or blink will become fur-
ther.
■The safe exit assist is opera-
tional when
The safe exit assist is operational
when all of the following conditions
are met:
●When the power switch is ON,
less than 3 minutes have elapsed
since the hybrid system was off, or
less than 3 minutes have elapsed
since a door was opened and
someone has entered the vehicle
(the time which operation is possi-
ble may be extended if a door is
opened and closed)
●Safe exit assist is on
●The vehicle is stopped.
●The shift position is in a position
other than R.
■The safe exit assist will detect a
vehicle when
The safe exit assist will detect a
vehicle present in the detection area
in the following situations:
●When the vehicle is stopped and a
vehicle or bicycle, which is travel-
ing parallel to the vehicle, is
approaching within the area that a
door opens (other than the back
A
A

3625-5. Using the driving support systems
door)
■Conditions under which the
system will not detect a vehicle
●Safe exit assist does not detect
the following objects, vehicles,
and bicycles:
• Vehicles or bicycles which are
approaching slowly
*
• Vehicles or bicycles which are determined to have a low possibil-
ity of colliding with a door (other
than the back door) when opened
*
• Vehicles or bicycles which are
approaching from directly behind*
• Vehicles or bicycles which are approaching from the front*
• Guardrails, walls , signs, parked
vehicles, and other stationary
objects
*
• Pedestrians, animals, etc.*
*
: Depending on the conditions, detection of a vehicle and/or
object may occur.
●In situations such as the following,
safe exit assist will not operate:
• When 3 minutes or more have elapsed since the hybrid system
off (the time which operation is
possible may be extended if a
door is opened and closed)
• When your vehicle is not com- pletely stopped
■Conditions under which the
system may not function cor-
rectly
●The safe exit assist 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 a vehicle or bicycle approaches from behind a nearby
parked vehicle
• When an approaching vehicle or
bicycle suddenly changes direc-
tion
• Immediately after a vehicle or
bicycle starts moving
• When the back door is open
• When a bicycle carrier, ramp, or other accessory is installed to the
back of the vehicle
• When a parked vehicle, wall, sign,
person or other stationary object
is behind the vehicle
• When the vehicle is stopped at an
angle to the road
• When a vehicle is traveling near an approaching vehicle or bicycle
• When an approaching vehicle or bicycle is traveling along a station-
ary object, such a wall or sign
• When a vehicle or bicycle is approaching at high speed
• When towing with the vehicle
• When stopped on a steep slope
• When stopped on a curve or at the exit of a curve
●Instances of the safe exit assist
unnecessarily detecting a vehicle
and/or object may increase in the
following situations:
• When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
• When a vehicle or bicycle
approaches from behind your
vehicle at an angle
• When the vehicle is stopped at an
angle to the road
• When a vehicle or bicycle approaches from behind a parked
vehicle at an angle
• When a parked vehicle, wall, sign, person or other stationary object
is behind the vehicle
• When an approaching vehicle or bicycle suddenly changes direc-
tion
• When an approaching vehicle or bicycle is traveling along a station-
ary object, such a wall or sign
• When the back door is open
• When a bicycle carrier, ramp, or other accessory is installed to the

3635-5. Using the driving support systems
5
Driving
back of the vehicle
• When a vehicle or bicycle is approaching at high speed
• When towing with the vehicle
• When stopped on a steep slope
• When stopped on a curve or at the exit of a curve
■Types of sensors
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
Front side sensors
*
Rear side sensors*
*: Vehicles with Advanced Park
■Display
When the sensors detect an
object, such as a wall, a graphic
is shown on the Multimedia Dis-
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 Multimedia Display
and a buzzer. Always check
the surrounding area when
using this system.
System components
A
B
C
D
E
F

3645-5. Using the driving support systems
play depending on the position
and distance to the object.
Display example:Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
Front side sensor detection
*
Rear side sensor detection*
*: Vehicles with Advanced Park
The intuitive parking assist can
be enabled/disabled on of
the multi-information display.
( P.166)
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
( P.152) illuminates.
To re-enable the system, select on the multi-information dis-
play, select the intuitive parking
assist and turn it on. If the sys-
tem is disabled, it will remain off even if the power switch is
turned to ON after the power
switch has been turned off.
Turning the intuitive park-
ing assist on/off
A
B
C
D
E
F
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 overly 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
Make sure to observe the follow-
ing precautions. The system may
not operate properly and may
lead to an unexpected accident.
When these precautions cannot
be observed, turn the system off.
●Do not damage the sensors,
and always keep them clean.
●Do not attach a st icker or install
an electronic component, such
as a backlit license plate (espe-
cially fluorescent type), fog
lights, fender pole 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.

3655-5. Using the driving support systems
5
Driving
■The system can be operated
when
●The power switch is in ON.
●The intuitive parking assist func-
tion is on.
●The vehicle speed is less than
about 6 mph (10 km/h).
●The shift position is in a position
other than P.
■If “Parking Assist Unavailable
Sensor Blocked” is displayed
on the multi-information 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 an abnormality is displayed even
though there are no water droplets,
ice, snow or dirt, the sensor may be
operating abnormally. Have the
vehicle inspected by your Toyota
dealer.
■If “System Stopped See
Owner’s Manual” is displayed
on the multi-information display
Water may be continuously flowing
over the sensor surf ace, such as in
a heavy rain. When the system
determines that it is normal, the sys-
tem will return to normal.
■If “System Malfunction Visit
Your Dealer” is displayed on
the multi-info rmation display
There may be a sensor or voltage
malfunction. Have the vehicle
inspected by your Toyota dealer.
■Sensor detection information
●The sensor’s detection areas are
limited to the areas around the
vehicle’s front and rear bumpers.
●Certain vehicle conditions and the
surrounding environment may
affect the ability of a sensor to cor-
rectly detect an object.
●Objects may not be detected if
they are too close to the sensor.
●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 detection
areas before the display is shown
and the warning beep 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.
●If the meter malfunctions, the
buzzer may not sound.
WARNING
●Keep your tires properly
inflated.
●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 ma y 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.

3665-5. Using the driving support systems
■Objects which the system may
not properly detect
The shape of the object may pre-
vent the sensor from detecting it.
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.
■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 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 ground, not perpen-
dicular to the vehicle traveling
direction, uneven, or waving are in
the detection range.
●When strong winds are 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 such as a towing
eyelet, transport hook, bumper
protector, bumper trim, bicycle
carrier or snow-removal device
(snow plow) is installed near the
sensor.
●If the front of the vehicle 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 repair kit are used.

3675-5. Using the driving support systems
5
Driving
■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 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 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, 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 repair kit are used.

3685-5. Using the driving support systems
■Detection range of the sen-
sors
Vehicles without Advanced
ParkApproximately 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 close to the vehicle.
The range of the sensors may
change depending on the shape of
the object, etc.
Vehicles with Advanced Park
Approximately 6.6 ft. (200
cm)
The diagram shows the detection
range of the sensors. Note that the
sensors cannot detect objects that
are extremely close to the vehicle.
The range of the sensors may
change depending on the shape of
the object etc.
■The distance and buzzer
Vehicles without Advanced Park
Sensor detection display,
object distance
A
B
C
A
Approximate distance to obstacleBuzzer
Front center sensor:
Approximately 3.3 ft. (100 cm) to 2.0 ft. (60 cm)
*
Rear center sensor:
Approximately 4.9 ft. (150 cm) to 2.0 ft. (60 cm)
*
Slow
Approximately 2.0 ft. (60 cm) to 1.5 ft. (45 cm)*Medium

3695-5. Using the driving support systems
5
Driving
*: Automatic buzzer mute function is enabled. (P.370)
Vehicles with Advanced Park
Approximately 1.5 ft. (45 cm) to 1.0 ft. (30 cm)*Fast
Approximately 1.0 ft. (30 cm) to 0.5 ft. (15 cm)ContinuousLess than approximately 0.5 ft. (15 cm)
Approximate distance to obstacleBuzzer
Front center sensor:
Approximately 6.6 ft. (200 cm) to 3.3 ft. (100 cm)
Rear center sensor:
Approximately 6.6 ft. (200 cm) to 4.9 ft. (150 cm)
Corner sensor:
Approximately 6.6 ft. (200 cm) to 2.0 ft. (60 cm)
Side sensor:
Approximately 6.6 ft. (200 cm) to 5.4 ft. (165 cm)
Does not sound
(Display only)
Front center sensor:
Approximately 3.3 ft. (100 cm) to 2.0 ft. (60 cm)
*
Rear center sensor:
Approximately 4.9 ft. (150 cm) to 2.0 ft. (60 cm)
*
Side sensor:
Approximately 5.4 ft. (165 cm) to 2.0 ft. (60 cm)
*
Slow
Except side sensor:
Approximately 2.0 ft. (60 cm) to 1.5 ft. (45 cm)
*
Side sensor:
Approximately 2.0 ft. (60 cm) to 1.3 ft. (40 cm)
*
Medium
Except side sensor:
Approximately 1.5 ft. (45 cm) to 1.0 ft. (30 cm)
*
Side sensor:
Approximately 1.3 ft. (40 cm) to 1.0 ft. (30 cm)
*
Fast
Approximate distance to obstacleBuzzer

3705-5. Using the driving support systems
*: Automatic buzzer mute function is enabled. (P.370)
■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 a
static object. When the vehi-
cle comes within the approxi-
mately 1.0 ft. (30 cm) of the
static object, the buzzer will
sound continuously.
 When 2 or more sensors
simultaneously detect a static
object, the buzzer sounds for
the nearest object.
 After a buzzer begins sound-
ing, if the distance between
the vehicle and the detected a
static object does not become
shorter, the buzzer will be
muted automatically. (auto-
matic buzzer mute function)
■Adjusting the buzzer vol-
ume
The buzzer volume of the intui-
tive parking assist, RCTA (if
equipped), and RCD (if
equipped) can be adjusted all
together on of the multi-infor-
mation display. ( P.618)
■Muting a buzzer temporarily
●When an object is detected, the
temporary mute switch is dis-
played on the Multimedia Display.
Select the switch to mute a buzzer
of the intuitive parking assist,
RCTA (if equipped), and RCD (if
equipped) all together.
●Mute will be automatically can-
celed 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.
The object warning function
informs the driver of the exis-
tence of objects along the side
of the vehicle, using a display
and buzzer, if the objects are
within the estimated path of the
vehicle.
Approximately 1.0 ft. (30 cm) to 0.5 ft. (15 cm)ContinuousLess than approximately 0.5 ft. (15 cm)
Approximate distance to obstacleBuzzer
Intuitive parking assist
object warning function
(vehicles with Advanced
Park)