2023 TOYOTA PRIUS PRIME Owners Manual

3855-5. Using the driving support systems
5
Driving
mation display. (P.167)
When the PKSB (Parking Support
Brake) is disabled, the driving
assist information indicator
( P.152) illuminates, and a mes-
sage is displayed on the multi-infor-
mation display.
If the system switches to OFF (dis-
abled) and the PKSB (Parking Sup-
port Brake) is st opped, the PKSB
(Parking Support Br ake) will not be
re-enabled until ON (enabled) is
selected again on the multi-infor-
mation display and the system
operates.
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 to OFF.
If the hybrid system output
restriction control or brake con-
trol operates, a buzzer will
sound and a message will be
displayed on the Multimedia
Display and multi-information
display, to alert the driver.
Depending on the situation, hybrid
system output rest riction control will
operate to either limit acceleration
or restrict output as much as possi-
ble.
 Hybrid system output restric-
tion control is operating
(acceleration restriction)
Acceleration greater than a certain amount is restricted by the system.
Multimedia Display (vehicles with
panoramic view monitor): No warn-
ing displayed
Multi-information
display: “Object
Detected Acceleration Reduced”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Does not sound
 Hybrid system output restric-
tion control is operating (out-
put restricted as much as
possible)
The system has determined that
stronger-than-normal brake opera-
tion is necessary.
Multimedia Display (vehicles with
panoramic view monitor): “BRAKE!”
Multi-information display: “BRAKE!”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Short beep
 Brake control is operating
The system determined that emer-
gency braking is necessary.
Multimedia Display (vehicles with
panoramic view monitor): “BRAKE!”
Multi-information display: “BRAKE!”
Driving assist info rmation indicator:
Not illuminated
Buzzer: Short beep
 Vehicle stopped by system
operation
The vehicle has been stopped by
brake control operation.
Multimedia Display (vehicles with
panoramic view monitor): “Press
Brake Pedal”
Display and buzzer for
hybrid system output
restriction control and
brake control

3865-5. Using the driving support systems
Multi-information display: “Acceler-
ator Pedal is Pressed Press Brake
Pedal” (If the accelerator pedal is
not depressed, “Press Brake Pedal”
will be displayed.)
Driving assist info rmation indicator:
Illuminated
Buzzer: Sounds repeatedly
If the Parking Support Brake
determines that a collision with a
detected object or pedestrian (if
equipped) is possible, the hybrid
system output will be restricted
to restrain any increase in the
vehicle speed. (Hybrid system
output restriction control: See
figure 2.)
Additionally, if the accelerator
pedal continues to be
depressed, the brakes will be
applied automatically to reduce
the vehicle speed. (Brake con-
trol: See figure 3.)
 Figure 1: When the PKSB
(Parking Support Brake) is not
operating
Hybrid system output
Braking force Time
 Figure 2: When hybrid system
output restriction control oper-
ates
Hybrid system output
Braking force
Time
Hybrid system output restric-
tion control begins operating
(System determines that pos-
sibility of collision with
detected object is high)
 Figure 3: When hybrid system
output restriction control and
brake control operates
Hybrid system output
Braking force
Time
Hybrid system output restric-
System overview
A
B
C
A
B
C
D
A
B
C
D

3875-5. Using the driving support systems
5
Driving
tion control begins operating
(System determines that pos-
sibility 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 Parking Support Brake,
the Parking Support Brake will be
disabled and the driving assist infor-
mation indicator will illuminate. In
addition, even when the PKSB
(Parking Support Brake) operates,
the brake control is canceled after
approximately 2 seco nds to start off.
Furthermore, the brake control also
can be canceled by depressing the
brake pedal. Depressing the accel-
erator pedal again after that allows
the vehicle to start off.
■Re-enabling the Parking Sup-
port Brake
To re-enable the Parking Support
Brake when it is disabled due to
operation of the PKSB (Parking
Support Brake), either enable the
system again, or turn the power
switch off and then back to ON.
Additionally, if any of the following
conditions are met, the system will
be re-enabled automatically and the
driving assist info rmation indicator
will turn off ( P.152):
●The P shift position is selected
●Drive with no operation targets in
the traveling direction of the vehi-
cle
●Change the traveling direction of
the vehicle
■Buzzer
Regardless of whether the intuitive
parking assist is enabled or not
(  P.364), if the PKSB (Parking
Support Brake) system is enabled
(  P.384), the buzzer will sound to
notify the driver of the approximate
distance to the object when the
brake control and the hybrid system
output restriction control are oper-
ated.
E

3885-5. Using the driving support systems
*: If equipped
This function will operate in situ-
ations such as the following if an
object is detected in the travel-
ing direction of the vehicle.
■When traveling at a low
speed and the brake pedal
is not depressed, or is
depressed late
■When the accelerator pedal
is depressed excessively
Parking Support Brake
function (static
objects to the front
and rear/static objects
around the vehicle)
*
If the sensors detect a static
object, such as a wall, in the
traveling direction of the
vehicle and the system
determines that a collision
may occur due to the vehi-
cle suddenly moving for-
ward due to an accidental
accelerator pedal opera-
tion, 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 (static objects
to the front and rear)

3895-5. Using the driving support systems
5
Driving
■When the vehicle moves
forward due to the incorrect
shift position being
selected
The system will operate in the
following situations when a sta-
tionary object is detected in the
surrounding area.■When moving forward and a
collision with a stationary
object on the inner side of a
turn is likely
■When reversing and a colli-
sion with a stationary
object on the outer side of a
turn is likely
 P.363Examples of function
operation (static objects
around the vehicle) (vehi-
cles with Advanced Park)
Types of sensors

3905-5. Using the driving support systems
■The Parking Support Brake
function (static objects to the
front and rear) will operate
when
The function will operate when the
driving assist information indicator is
not illuminated ( P.150, 152) and
all of the followin g conditions are
met:
●Hybrid system output restriction
control
• The Parking Support Brake is enabled.
• The vehicle speed is approxi-
mately 9 mph (15 km/h) or less.
• There is a static object in the trav-
eling direction of the vehicle and
approximately 6 to 13 ft. (2 to 4 m)
away.
• The Parking Support Brake deter-
mines that a stronger-than-nor-
mal brake operation is necessary
to avoid a collision.
●Brake control
• Hybrid system output restriction
control is operating
• The Parking Support Brake deter- mines that an immediate brake
operation is necessary to avoid a
collision.
■The Parking Support Brake
function (static objects around
the vehicle)
* will operate when*: Vehicles with Advanced Park
This function is operable when any
of the following conditions are met in
addition to the operating conditions
for stationary objects in around the
vehicle.
●After the hybrid system has been
started, the vehicle has moved
approximately 23.0 ft. (7 m) or
less
●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
■The Parking Support Brake
function (static objects to the
front and rear/static objects
around the vehicle
*) will stop
operating when
*: Vehicles with Advanced Park
The function will st op operating if
any of the following conditions are
met:
●Hybrid system output restriction
control
• The Parking Support Brake is dis- abled.
• The system determines that the collision has become avoidable
with normal brake operation.
• The static object is no longer
approximately 6 to 13 ft. (2 to 4 m)
away from the vehicle or in the
traveling direction of the vehicle.
●Brake control
• The Parking Support Brake is dis- abled.
• Approximately 2 seconds have
elapsed since the vehicle was
stopped by brake control.
• The brake pedal is depressed
after the vehicle is stopped by
brake control.
• The static object is no longer
approximately 6 to 13 ft. (2 to 4 m)
WARNING
■To ensure the system can
operate properly
 P.364
■If the PKSB (Parking Support
Brake) operates unnecessar-
ily, such as at a railroad
crossing
 P.387
■Notes when washing the vehi-
cle
 P.365

3915-5. Using the driving support systems
5
Driving
away from the vehicle or in the
traveling direction of the vehicle.
■Detection range of the Parking
Support Brake function (static
objects to the front and
rear/static objects around the
vehicle
*)*: Vehicles with Advanced Park
The detection range of the Parking
Support Brake function (static
objects to the front and rear/static
objects around the vehicle) differs
from the detection range of the intui-
tive parking assist ( P.363). There-
fore, even if the intuitive parking
assist detects an object and pro-
vides a warning, the Parking Sup-
port Brake function (static objects to
the front and rear/static objects
around the vehicle) may not start
operating.
■Situations in which the system
may not operate properly
 P.366
■Situations in which the system
may operate even if there is no
possibility of a collision
 P.367
■Situations in which the system
may operate even though there
is no possibility of a collision
(static objects around the vehi-
cle) (vehicles with Advanced
Park)
In addition to the situations in which
stationary objects front and rear
(  P.390) may not be detected,
objects may not be detected by the
sensors in the following situations:
●When moving sideways, such as
when parallel parking ( P.408)
■Detection of objects along the
sides of the vehicle (static
objects around the vehicle)
(vehicles with Advanced Park)
●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.

3925-5. Using the driving support systems
*: If equipped
This function will operate in situ-
ations such as the following if a
vehicle is detected in the travel-
ing direction of the vehicle.
■When reversing, a vehicle is
approaching and the brake
pedal is not depressed, or
is depressed late
P.355
■The Parking Support Brake
function (rear-crossing vehi-
cles) will operate when
The function will operate when the
driving assist information indicator is
not illuminated ( P.150, 152) and
all of the following conditions are
met:
●Hybrid system output restriction
control
• The Parking Support Brake is enabled.
• The vehicle speed is approxi- mately 9 mph (15 km/h) or less.
• Vehicles are approaching from the
right or left at the rear of the vehi-
cle at a traveling speed of approx-
imately 5 mph (8 km/h) or more.
• The shift position is in R.
• The Parking Support Brake deter- mines that a stronger than normal
brake operation is necessary to
avoid a collision wit h an approach-
ing vehicle.
●Brake control
• Hybrid system output restriction
control is operating
• The Parking Support Brake deter- mines that an emergency brake
operation is necessary to avoid a
collision with an approaching vehi-
cle.
■The Parking Support Brake
function (rear-crossing vehi-
cles) will stop operating when
The function will st op operating if
any of the following conditions are
met:
●Hybrid system output restriction
Parking Support Brake
function (rear-crossing
vehicles)
*
If a rear radar sensor
detects a vehicle approach-
ing from the right or left at
the rear of the vehicle and
the system determines that
the possibility of a collision
is high, this function will
perform brake control to
reduce the likelihood of an
impact with the approach-
ing vehicle.
Examples of function
operation
Types of sensors
WARNING
■To ensure the system can
operate properly
 P.355