2023 TOYOTA PRIUS PRIME brake

4175-5. Using the driving support systems
5
Driving
■When multiple parking spaces
are registered
Select the desired parking space,
and then select “Start” button.
■When the brakes have been
operated
 P.406
NOTICE
■When using the memory
function ( P.406, 411)
●The memory function is a func-
tion which provides assistance
in parking in a previously regis-
tered parking space. If the con-
dition of the road surface,
vehicle, or surrounding area dif-
fers from when registration was
performed, the parking space
may not be able to be detected
correctly or assistance may not
be provided to the point that the
vehicle is fully parked.
●Do not register a parking space
in situations such as the follow-
ing, as the set parking space
may not be able to be registered
or assistance may not be possi-
ble later.
• When a camera lens is dirty or covered with water droplets
• When it is raining or snowing
• When the surrounding area is dark (at night, etc.)
●In situations such as the follow-
ing, it may not be possible to
register a parking space.
• When there is insufficient space between the road and parking
space
• When the road surface around the parking space does not
have any differences the sys-
tem can recognize
●If a parking space has been reg-
istered in situations such as the
following, assistance may not
be able to be started later or
assistance to the registered
position may not be possible.
• When shadows are cast on the parking space (there is a carport
over the parking space, etc.)
• When there are leaves, gar- bage, or other objects which will
likely move, in the parking
space
• When the road surface around the parking space has the same
repeating pattern (brick, etc.)

4195-5. Using the driving support systems
5
Driving
■Assistance will be can-
celed when
In situations such as the follow-
ing, Advanced Park operation
will be canceled. Firmly hold the
steering wheel and depress the
brake pedal to stop the vehicle.
As system operation has been
canceled, begin the operation
again or continue parking manu-
ally, using the steering wheel.
 The Advanced Park main
switch is pushed
 The shift position has been
changed to P
 The parking brake is engaged
 A door or the back door is
opened
 The driver’s seat belt is unfas-
tened
 The outside rear view mirrors
are folded
 The TRAC or VSC is turned
off
 The TRAC, VSC or ABS oper-
ates
 The power switch is pressed
 The system determines assis-
tance cannot be continued in
the current parking environ-
ment
 The system malfunctions
 While the vehicle was stopped, “Cancel” was
selected on the Multimedia
Display■Assistance will be sus-
pended when
In situations such as the follow-
ing, Advanced Park operation
will be suspended.
Assistance can be started again
by following the directions dis-
played on the Multimedia Dis-
play.
Also, when assistance is sus-
pended, if the shift position is
changed twice with the brake
pedal depressed, assistance will
be canceled in that shift posi-
tion. However, if assistance is
suspended by changing the shift
position, assistance will be can-
celed if the shift position is
changed once.
 The steering wheel is oper-
ated
 The accelerator pedal is
depressed
 The shift position has been
changed
 A moving object or stationary
object that may collide with
your vehicle has been
detected, resulting in the
operation of the hybrid system
output control/braking control.
 Camera switch is pressed
Advanced Park cancel-
ation/suspension

4215-5. Using the driving support systems
5
Driving
adjusted.
■“Park position adjustment
(forward)”
The position at which perpendic-
ular parking (forward) is com-
pleted can be adjusted. (Except
when using the memory func-
tion.)
■“Park position adjustment
(reverse)”
The position at which perpendic-
ular parking (reverse) is com-
pleted can be adjusted. (Except
when using the memory func-
tion.)
■“Rear accessory setting”
If an accessory, such as a trailer
hitch, has been installed to the
rear of the vehicle, the length of
the rear of the vehicle can be
adjusted to help avoid colliding
with objects to the rear of the
vehicle.
■“Clear registered parking
space”
The parking spaces registered
to the memory function can be
deleted. Parking space informa-
tion cannot be deleted when
assistance is being performed
or when registering parking
space information to the mem-
ory function. The operating state, assistance
operation, etc. of the Advanced
Park is displayed on the Multi-
media Display. If a message is
displayed, respond according to
the content displayed.
■If “No available parking space”
is displayed
Move the vehicle to a location where
a parking space or parking lines can
be detected.
■If “Unavailable in current condi-
tion” is displayed
Move the vehicle to another location
and use the system.
■If “Not enough space to exit” is
displayed
The parallel parking exit function
cannot be used due to a situation
such as the distance between your
vehicle and vehicles parked in front
of and behind your vehicle being
short, the existence of an object in
the exit direction, etc.
Check the conditions of the area
NOTICE
●Take care when using the park
position adjustment (forward) or
park position adjustment
(reverse) for adjusting because
the vehicle may collide with
parking blocks, curb stones, or
other low objects.
●If it is likely that your vehicle will
collide with a nearby vehi-
cle/object, parking block, curb
stone, etc., depress the brake
pedal to stop the vehicle and
press the Advanced Park main
switch to disable the system.
Advanced Park displayed
messages

4245-5. Using the driving support systems
■ECB (Electronically Con-
trolled Brake System)
The electronically controlled
system generates braking force
corresponding to the brake
operation
■ABS (Anti-lock Brake Sys-
tem)
Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface
■Brake assist
Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation
■VSC (Vehicle Stability Con-
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces.
■Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
■TRAC (Traction Control)
Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads
■Active Cornering Assist
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steer-
ing)
Employs an electric motor to
reduce the amount of effort
needed to turn the steering
Driving assist systems
To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.
Summary of the driving
assist systems

4255-5. Using the driving support systems
5
Driving
wheel.
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the TRAC/VSC/ABS sys-
tems are operating
The slip indicator light will flash
while the TRAC/VSC/ABS systems
are operating.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the hybrid sys-
tem to the wheels.
Pressing to turn the system off
may make it easier for you to rock
the vehicle in order to free it.
To turn the TRAC system off,
quickly press and release . The “Traction Control Turned OFF”
will be shown on the multi-informa-
tion display.
Press again to turn the system
back on.
■Turning off both TRAC and VSC
systems
To turn the TRAC and VSC systems
off, press and hold for more than
3 seconds while the vehicle is
stopped.
The VSC OFF indicator light will
come on and the “Traction Control
Turned OFF” will be shown on the
multi-informat ion display.
*
Press again to turn the systems
back on.
*: PCS (Pre-Collision System) will
also be disabled (only pre-collision
warning is available). The PCS
warning light will come on and a
message will be disp layed on the
multi-information display.
(  P.298)
■When the message is dis-
played on the mu lti-information
display showing that TRAC has
been disabled even if has
not been pressed
TRAC is temporary deactivated. If
the information continues to show,
contact your Toyota dealer.
■Operating conditions of hill-
start assist control
When all of the following conditions
are met, the hill-start assist control
will operate:
●The shift position is in a position
other than P or N (when starting
off forward/backward on an
upward incline)
●The vehicle is stopped

4265-5. Using the driving support systems
●The accelerator pedal is not
depressed
●The parking brake is not engaged
●The power switch is in ON
■Automatic system cancelation
of hill-start assist control
The hill-start assist control will turn
off in any of the following situations:
●Shift the shift position to P or N.
●The accelerator pedal is
depressed
●The brake pedal is depressed and
the parking brake is engaged
●A maximum of 2 seconds have
elapsed after the brake pedal is
released
●The power switch is turned to OFF
■Sounds and vibrations caused
by the ABS, brake assist, VSC,
TRAC and hill-start assist con-
trol systems
●A sound may be heard from the
engine compartment when the
brake pedal is depressed repeat-
edly, when the hybrid system is
started or just after the vehicle
begins to move. This sound does
not indicate that a malfunction has
occurred in any of these systems.
●Any of the following conditions
may occur when the above sys-
tems are operating. None of these
indicates that a malfunction has
occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also
after the vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard
in the following cases, but it does
not indicate that a malfunction has
occurred.
●Operating sound heard from the
engine compartment when the
brake pedal is operated.
●Operating sound heard from the engine compartment when one or
two minutes passed after the stop
of the hybrid system.
■Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may be generated from
the brake system, but this is not a
malfunction.
■Automatic reactivation of TRAC
and VSC systems
After turning the TRAC and VSC
systems off, the systems will be
automatically re-enabled in the fol-
lowing situations:
●When the power switch is turned
off
●If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic re-
enabling will not occur when vehi-
cle speed increases.
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is attempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the
EPS system
The effectivenes s of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the hybrid
system off. The EPS system should
return to normal within 10 minutes.

4275-5. Using the driving support systems
5
Driving
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion.
However, the system does not oper-
ate when the components are dam-
aged.
■Secondary Collision Brake
automatic cancellation
The system is automatically can-
celed in any of the following situa-
tions.
●The vehicle speed drops to
approximately 0 mph (0 km/h).
●A certain amount of time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow-covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the vehicle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where stability and power
may be lost.
■Active Cornering Assist does
not operate effectively when
●Do not overly rely on Active
Cornering Assist. Active Corner-
ing Assist may not operate
effectively when accelerating
down slopes or driving on slip-
pery road surfaces.
●When Active Cornering Assist
frequently operates, Active Cor-
nering Assist may temporarily
stop operating to ensure proper
operation of the brakes, TRAC
and VSC.
■Hill-start assist control does
not operate effectively when
●Do not overly rely on hill-start
assist control. Hill-start assist
control may not operate effec-
tively on steep inclines and
roads covered with ice.
●Unlike the parking brake, hill-
start assist control is not
intended to hold the vehicle sta-
tionary for an extended period
of time. Do not attempt to use
hill-start assist control to hold
the vehicle on an incline, as
doing so may lead to an acci-
dent.

4285-5. Using the driving support systems
WARNING
■When the TRAC/ABS/VSC is
activated
The slip indicator light flashes.
Always drive care fully. Reckless
driving may cause an accident.
Exercise particular care when the
indicator light flashes.
■When the TRAC/VSC systems
are turned off
Be especially careful and drive at
a speed appropriate to the road
conditions. As these are the sys-
tems to help ensure vehicle stabil-
ity and driving force, do not turn
the TRAC/VSC systems off
unless necessary.
■Replacing tires
Make sure that all tires are of the
specified size, brand, tread pat-
tern and total load capacity. In
addition, make sure that the tires
are inflated to the recommended
tire inflation pressure level.
The ABS, TRAC and VSC sys-
tems will not function correctly if
different tires are installed on the
vehicle.
Contact your Toyota dealer for
further information when replacing
tires or wheels.
■Handling of tires and the sus-
pension
Using tires with any kind of prob-
lem or modifying the suspension
will affect the driv ing assist sys-
tems, and may cause a system to
malfunction.
■Secondary Collision Brake
Do not rely solely upon the Sec-
ondary Collision Brake. This sys-
tem is designed to help reduce
the possibility of further damage
due to a secondary collision, how-
ever, that effect changes accord-
ing to various conditions. Overly
relying on the system may result
in death or serious injury.