2023 TOYOTA PRIUS PRIME display

3145-5. Using the driving support systems
*: Boundary between the asphalt and grass, soil, et c., or structures,
such as a curb, guardrail, etc.
■Break suggestion function
If the vehicle is swaying, a mes-
sage will be displayed and a
buzzer will sound to urge the
driver to take a break.
■Operating conditions of each
function
●Lane departure alert/prevention
function
This function is operable when all of
WARNING
■Before using the LDA system
●Do not overly rely on the LDA
system. The LDA system is not
a system which provides auto-
mated assistance in driving and
it is not a system which reduces
the amount of attention neces-
sary for safe driv ing. The driver
is solely responsible for paying
attention to their surroundings
and operating the steering
wheel as necessary to ensure
safety. Also, the driver is
responsible for taking adequate
breaks when fatigued, such as
when driving for a long time.
●Failure to perform appropriate
driving operations and pay care-
ful attention may lead to an
accident.

3155-5. Using the driving support systems
5
Driving
the following conditions are met:
• The vehicle speed is approxi-mately 30 mph (50 km/h) or more.
Operation may be possible when
the vehicle speed is approximately
25 mph (40 km/h) or more if vehi-
cles, motorcycles, bicycles, or
pedestrians are detected near the
lane.
• The system recognizes a lane or course
*. (When recognized on
only one side, the system will
operate only for the recognized
side.)
• The lane width is approximately
9.8 ft. (3 m) or more.
• The turn signal lever is not being operated.
(Vehicles with BSM: Except when a
vehicle is detected in the direction
that the turn signal lever is oper-
ated.)
• The vehicle is not being driven around a sharp curve.
• The vehicle is not accelerating or
decelerating more than a certain
amount.
• The steering wheel is not being turned sufficiently to perform a
lane change.
• When the VSC or TRAC system is not turned off
*: Boundary between the asphalt
and grass, soil, etc., or structures,
such as a curb, guardrail, etc.
■Temporary cancellation of func-
tions
When the operating conditions are
no longer met, a function may be
temporarily canceled. However,
when the operation conditions are
met again, operation of the function
will automatically be restored.
(  P.314)
■Operation of the lane departure
alert function/lane departure
prevention function
●Depending on the vehicle speed, road conditions, lane departure
angle, etc., operation of the lane
departure prevention function may
not be felt or the function may not
operate.
●Depending on the conditions, the
warning buzzer may operate even
if vibration is selected through a
customize setting.
●If a course* is not clear or straight,
the lane departure alert function or
lane departure prevention function
may not operate.
●The lane departure alert function
or lane departure prevention func-
tion may not operate if the system
judges that the vehicle is inten-
tionally being steered to avoid a
pedestrian or parked vehicle.
●Vehicles with BSM: It may not be
possible for the sys tem to judge if
there is danger of a collision with a
vehicle in an adjacent lane.
●Vehicles with a driver monitor
camera: Depending on the driver
condition, the lane departure alert
function or lane departure preven-
tion function changes the timing of
operation.
●The steering assist operation of
the lane departure prevention
function can be overridden by the
steering wheel operation of the
driver.
*: Boundary between the asphalt
and grass, soil, etc., or structures,
such as a curb, guardrail, etc.
■Hands off steering wheel warn-
ing operation
In the following si tuations, a mes-
sage urging the driver to operate the
steering wheel and an icon will be
displayed and a buzzer will sound to
warn the driver. When using the
system, make sure to grip the steer-
ing wheel firmly, regardless of
whether the warning is operating or
not.

3165-5. Using the driving support systems
●When the system determines that
the driver is not securely holding
the steering wheel, or the steering
wheel is not being operated when
the steering assist operation of the
lane departure prevention function
is operating
Except for Puerto Rico: The length
of time that the warning buzzer
operates will become longer as the
frequency of the steering assist
operating increase s. If the system
judges that the steering wheel has
been operated, the warning buzzer
will stop.
For Puerto Rico: The length of time
that the warning buzzer operates
will become longer as the frequency
of the steering assist operating
increases. Even if the system
judges that the steering wheel has
been operated, the warning buzzer
will sound for a certain amount of
time.
■Break suggestion function
This function is operable when all of
the following conditions are met:
●The vehicle speed is approxi-
mately 40 mph (65 km/h) or
more.
*1
●The vehicle speed is approxi-
mately 32 mph (50 km/h) or
more.
*2
●The lane width is approximately
9.8 ft. (3 m) or more.
Depending on the condition of the
vehicle and road surface, the break suggestion function may not oper-
ate.
Press the meter control switch
to turn off the message.
*1
Unless is pressed, the message
of the break suggestion function will
remain displayed.
*1
*1
: For Puerto Rico
*2: Except for Puerto Rico
 The LDA system can be
enabled/disabled through a
customize setting. ( P.627)
 The settings of the LDA can
be changed on the customize
settings. ( P.627)
Changing LDA settings
WARNING
■Situations in which the sys-
tem may not operate properly
In the following situations, the
system may not operate properly
and the vehicle may depart from
its lane. Do not overly rely on
these functions. The driver is
solely responsible for paying
attention to their surroundings
and operating the steering wheel
as necessary to ensure safety.

3175-5. Using the driving support systems
5
Driving
The operating state of the lane departure alert function and steering
assist operation of the lane departure prevention function are indi-
cated.
Except for Puerto Rico
WARNING
●When the boundary between
the asphalt and grass, soil, etc.,
or structures, such as a curb,
guardrail, etc. is not clear or
straight
●When the vehicle is struck by a
crosswind or the turbulence of
other nearby vehicles
●Situations in which the lane may
not be detected: P.291
●Situations in which the sensors
may not operate properly:
 P.289
●Situations in which some or all
of the functions of the system
cannot operate: P.291
●When it is necessary to disable
the system: P.284
Displays and system operation
IndicatorLane displaySteering iconCondition
Not illuminatedNot illuminatedNot illuminatedSystem disabled
WhiteGray
Not illuminated
Lane lines are not
detected by the system
WhiteWhite
Not illuminated
Lane lines are
detected by the system

3185-5. Using the driving support systems
For Puerto Rico
Yellow
FlashingYellow
FlashingNot illuminated
Lane departure alert function is
operating for the side which the lane display is flashing
GreenGreenGreen
Lane departure
prevention func- tion is operating
for the side which
the lane display is illuminated
Yellow
FlashingYellow
FlashingGreen
Lane departure alert func-
tion/lane depar- ture prevention
function is operat- ing for the side which the lane
display is flashing
IndicatorLane displaySteering iconSituation
Yellow
Illuminated
Not illumi- natedNot illumi- natedSystem disabled
Not illumi-nated
Gray
Not illumi-natedLane lines are not detected by
the system
Not illumi-nated
White
Not illumi-natedLane lines are detected by the
system
Yellow
FlashingYellow
Flashing
Not illumi- natedLane departure alert function
is operating for the side which
the lane display is flashing
IndicatorLane displaySteering iconCondition

3195-5. Using the driving support systems
5
Driving
GreenGreenGreen
Lane departure prevention
function is operating for the
side which the lane display is
illuminated
Yellow
FlashingYellow
FlashingGreen
Lane departure alert func-
tion/lane departure prevention
function is operating for the
side which the lane display is
flashing
IndicatorLane displaySteering iconSituation

3245-5. Using the driving support systems
The proactive driving assist
can be enabled/disabled
through a customize setting.
( P.627)
 The settings of the proactive
driving assist can be changed
through customize settings.
( P.627)
Depending on the situation, the following indicators or icons will be
displayed.
Some icons cannot be displayed unless the display is changed to
the driving safety support function information screen.
WARNING
●When approaching a vehicle
ahead which is perpendicular or
at an angle to the vehicle, or is
facing the vehicle
●If a parked vehicle is perpendic-
ular or at an angle to the vehicle
●When a bicycle is a child sized
bicycle, is carrying a large load,
is carrying an extra passenger,
or has an unusual shape (bicy-
cles equipped with a child seat,
tandem bicycles, etc.)
●When a pedestrian or bicyclist is
shorter than approximately 3.2
ft. (1 m) or taller than approxi-
mately 6.5 ft. (2 m)
●When the silhouette of a pedes-
trian or bicyclist is unclear (such
as when they are wearing a
raincoat, long skirt, etc.)
●When a pedestrian or bicyclist is
bending forward or squatting
●When a pedestrian or bicyclist is
moving at high speed
●When a pedestrian is pushing a
stroller, wheelchair, bicycle or
other vehicle
●When a detectable object
blends in with the surrounding
area, such as when it is dim (at
dawn or dusk) or dark (at night,
in a tunnel, etc.)
●When the lane width is 13.1 ft.
(4 m) or more
●When the lane width is 8.2 ft.
(2.5 m) or less
●When the vehicle has not been
driven for a certain amount of
time after the hybrid system was
started
●While turning left or right or a
few seconds after turning left or
right
●While changing lanes or a few
seconds after changing lanes
●When entering a curve, driving
around a curve and a few sec-
onds after driving around a
curve
Changing proactive driv-
ing assist settings
System operation display

3255-5. Using the driving support systems
5
Driving
■Hands off steering wheel warn-
ing operation
In the following situations, a mes-
sage urging the driver to grip the
steering wheel and the icon shown
in the illustration will be displayed on
the display to warn the driver. If the system detects that the steering
wheel is held, the warning will be
canceled. When using the system,
make sure to grip the steering wheel
firmly, regardless of whether the
warning is operating or not.
IconMeaning

White: Monitoring for detectable
objects
 Green: Detectable object crossing
the road or detectable object on
the side of the road assistance
operating
A pedestrian has been detected as
crossing the road or on the side of
the road and brake or steering assis-
tance is operating
A vehicle has been detected on the
side of the road and brake or steer-
ing operation assistance is being
performed
Steering operation assistance is
being performed to prevent the
vehicle from approaching too close
to a detectable object on the side
of the road
 When the steering assist is operat-
ing
Preceding vehicle deceleration
assistance is being performed
Warning to maintain appropriate
vehicle-to-vehicle distance
Curve deceleration assistance is
being performed