2023 TOYOTA COROLLA Owners Manual

2094-5. Using the driving support systems
4
Driving
●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
The length of time that the warning
buzzer operates will become longer
as the frequency o f the steering
assist operating i ncreases. Even if
the system judges that the steering
wheel has been operated, the warn-
ing buzzer will sound for a certain
amount of time.
■Break suggestion function
If the vehicle is swaying, a message
will be displayed and a warning
buzzer will sound to u rge the driver
to take a break.
Depending on the condition of the
vehicle and road surface, the break
suggestion functi on may not oper-
ate.
 The LDA system can be
enabled/disabled through a
customize setting. ( P.412)
 The settings of the LDA can
be changed on the customize
settings. ( P.412)
Changing LDA settings
WARNING
■Situations in which the sys-
tem may not ope rate 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.
●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.189
●Situations in which the sensors
may not operate properly:
P.188
●Situations in which some or all
of the functions of the system
cannot operate: P.189
●When it is necessary to disable
the system: P.184

2104-5. Using the driving support systems
The operating state of the lane departure alert function and steering
assist operation of the lane departure prevention function are indi-
cated.
Displays and system operation
IndicatorLane dis- playSteering iconSituation
Not illumi- natedNot illumi-natedNot illumi-natedSystem disabled
WhiteGray
Not illumi-natedLane lines are not detected by the
system
WhiteWhite
Not illumi-natedLane lines are det ected by the sys-
tem
Orange
FlashingOrange
Flashing
Not illumi- natedLane departure alert function is
operating for the side which the lane
display is flashing
GreenGreenGreen
Lane departure prevention function
is operating for th e side which the
lane display is illuminated
Orange
FlashingOrange
FlashingGreen
Lane departure alert function/lane
departure prevention function is
operating for the side which the lane
display is flashing

2114-5. Using the driving support systems
4
Driving
PDA (Proactive driv-
ing assist)
When a detectable object
(P.212) is detected, the
proactive driving assist
operates the brakes and
steering wheel to help pre-
vent the vehicle from
approaching too close to
the object.
WARNING
■For safe use
Driving safely is solely the respon-
sibility of the driver.
●The proactive driving assist is
designed to provide some
assistance for regular braking
and steering operations, as well
as helping to prevent the vehicle
from approaching too close to a
detectable object. However, the
scope of this assistance is lim-
ited.
The driver should perform brake
and steering operations as neces-
sary. Read the following items
carefully. Do not overly rely on the
proactive driving assist and
always drive carefully.( P.213)
●The proactive driving assist is
not a system which reduces the
amount of attention necessary
for safe driving. Even if the sys-
tem is operating correctly, the
surrounding conditions as rec-
ognized by the driver and
detected by the system may dif-
fer. It is necessary for the driver
to pay attention, assess risks,
and ensure safety. Over-reli-
ance on this system to drive the
vehicle safely may lead to an
accident resulting in death or
serious injury.
●Proactive driving assist is not a
system which allows for inatten-
tive driving and is not a system
which assists in poor visibility
conditions. The driver is solely
responsible for paying attention
to their surroundings and driving
safely.
■When turning proactive driv-
ing assist off
●Situations in which the sensors
may not operate properly
:  P. 1 8 8
●When it is necessary to disable
the system : P.184

2124-5. Using the driving support systems
According to the driving conditions, the operation and detectable
objects of the proactive driving assist will change as follows.
System operating conditi ons and detectable objects
FunctionConditionsOperationDetectable
objects
Obstacle
Anticipation
Assist
A detectable
object is detected
crossing the road
Assistance with
some brake opera-
tions is provided in
order to reduce the
possibility of a colli-
sion.
Pedestrians
 Bicyclists
A detectable
object is detected
on the side of the
road
Assistance with
some brake and
steering wheel oper-
ations are provided
according to the sur-
rounding conditions
to help prevent the
vehicle from
approaching too
close to a detected
object.
Assistance with
steering wheel oper-
ations is provided
within a range that
the vehicle will not
deviate from its cur-
rent lane.
Pedestrians
 Bicyclists
 Parked vehi-
cles
Deceleration
Assist
A preceding or
adjacent vehicle
is detected as cut-
ting in front of the
vehicleThe vehicle is gently
decelerated so that
the vehicle-to-vehi-
cle distance is
excessively short.
Preceding vehi-
cles
 Motorcycles
A curve is
detected ahead of
the vehicle
The vehicle is gently
decelerated if the
vehicle speed is
determined to be too
high for the curve
ahead.
None

2134-5. Using the driving support systems
4
Driving
■Vehicle speeds at which the
system can operate
●Detectable object crossing the
road assistance
Approximately 20 to 35 mph (30 to
60 km/h)
●Detectable object on the side of
the road assistance
Approximately 20 to 35 mph (30 to
60 km/h)
●Preceding vehicle deceleration
assistance
Approximately 15 mph (20 km/h) or
more
●Curve decelerati on assistance
Approximately 15 mph (20 km/h) or
more
■System operation will be can-
celed when
●In the following si tuations, system
operation will be canceled :
• When the dynamic radar cruise control is operating
• When the PCS is off
• Situations in whi ch some or all of
the functions of the system cannot
operate : P. 1 8 8
• When the P, R or N shift position is selected
When the vehicle speed falls below
approximately 9.3 mph (15 km/h)
Or when a certain vehicle speed
has been reached, as judged by the
system, according to the surround-
ing conditions
●In the following si tuations, system
operation may be canceled :
• When the brake control or output restriction control of a driving sup-
port system operates
(For example: PCS, drive-start
control)
• When the system determines that a detected object has moved
away from the vehicle
●In the following situations, system
assistance may be canceled :
• When lane lines can no longer be
detected
• When the brake pedal has been
depressed
• When the accelerator pedal has been depressed
• When the steering wheel has
been operated wi th more than a
certain amount of force
• When the turn signal lever is oper-
ated to the left/right turn position
WARNING
■Situations in which the sys-
tem may not ope rate properly
●Situations in which the lane may
not be detected :
P.189
●When a detectable object stops
immediately before entering the
path of the vehicle
●When passing extremely close
to a detectable object behind a
guardrail, fence, etc.
●When changing lanes while
overtaking a detectable objec
●When passing a detectable
object that is changing lanes or
turning left/right
●When there are objects (guard-
rails, power poles, trees, walls,
fences, poles, traffic cones,
mailboxes, etc.) in the surround-
ing area
●When there are patterns or a
painting ahead of the vehicle
that may be mistaken for a
detectable object
●When passing through a place
with a low structure above the
road (tunnel with a low ceiling,
traffic sign, signboard, etc.)
●When driving on snowy, icy, or
rutted roads

2144-5. Using the driving support systems
WARNING
●When a detectable object is
approaching your vehicle
●When your vehicle or a detect-
able object is wandering
●When the movement of a
detectable object changes
(change in direction, sudden
acceleration or deceleration,
etc.)
●When suddenly approaching a
detectable object
●When a preceding vehicle or
motorcycle is not directly in front
of your vehicle
●When there is a structure above
a detectable object
●When part of a detectable
object is hidden by another
object (large luggage, umbrella,
guardrail, etc.)
●When multiple detectable
objects are overlapping
●When a bright light, such as the
sun or headlights of another
vehicle, is reflecting off of the
detectable object
●When the detectable object is
white and looks extremely bright
●When the color or brightness of
the detectable object causes it
to blend in with its surroundings
●When a detectable object cuts
in front of or emerges from
beside a vehicle
●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 app roximately 3.2
ft. (1 m) or talle r 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 engine 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

2154-5. Using the driving support systems
4
Driving
The proactive driving assist
can be enabled/disabled
through a customize setting. (
P.412)
 The following settings of the
proactive driving assist can be
changed through customize
settings.( P.412)
Depending on the situation, the following indicators or icons w ill be
displayed.
Some icons cannot be displayed unless the display is changed to
the driving safety support function information screen.
Changing proactive driv-
ing assist settings
System operation display
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 bra ke or steering assistance is
operating
A vehicle has been detected on the side of the road and
brake or steering operation assistance is being performed
Steering operation assistance is being performed to pre-
vent the vehicle from approaching too close to a detectable
object on the side of the road
Preceding vehicle deceleration assistance is being per-
formed

2164-5. Using the driving support systems
■Hands off steering wheel warn-
ing operation
In the following situations, a mes-
sage urging the dr iver 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.
●When the system determines the
driver is not holding the steering
wheel while the lane centering
function is operating
If no operations are detected for a
certain amount of time, a buzzer will
sound, the warnin g will operate.
This warning may also operate if the
driver only operates steering wheel
a small amount continuously.
■Warning operation after preced-
ing vehicle deceleration assis-
tance has ended
After preceding vehicle decelera-
tion assistance has ended, if the
driver does not operate the brake
pedal or accelerator pedal and the vehicle approaches the preceding
vehicle, the displa
y will flash and a
buzzer will sound to urge the driver
to decelerate. If the system deter-
mines that the driver is operating the
brake pedal or accelerator pedal,
the warning will be canceled.
Warning to maintain appropriate vehicle-to-vehicle dis-
tance
Curve deceleration assistance is being performed
IconMeaning