2023 TOYOTA COROLLA warning

1924-5. Using the driving support systems
■Pre-collision brake assist
If the system determines that
the possibility of a collision is
high and the brake operation by
the driver is insufficient, the
braking power will be increased.
■Pre-collision brake control
If the system determines that
the possibility of a collision is
extremely high, the brakes are
automatically applied to help
avoid the collision or reduce the
impact of the collision.
■Emergency steering assist
If the system determines that
the following conditions are met,
assistance will be provided to
help enhance vehicle stability
and prevent lane departure.
During assistance, in addition to
the pre-collision warning, the fol-
lowing icon will be displayed on
the multi-information display.
 The possibility of a collision is
high
 There is sufficient space
within the lane to perform
evasive steering maneuvers
 The driver is operating the
steering wheel
During assistance, the pre-colli-
sion warning will operate and a
message will be displayed to
warn the driver.
■Intersection collision avoid-
ance support (left/right
turn)
In situations such as the follow-
ing, if the system determines
that the possibility of a collision
is high, the pre-collision warning
and pre-collision braking will
operate.
Depending on the intersection,
assistance may not operate cor-
rectly.
 When turning left/right at an
intersection and crossing the
path of an oncoming vehicle
 When turning left/right and an
oncoming pedestrian or bicy-
cle is detected

1934-5. Using the driving support systems
4
Driving
■Intersection collision avoid-
ance support (crossing
vehicles)
At an intersection, etc., if the
system determines that the pos-
sibility of a collision with an
approaching vehicle or motorcy-
cle is high, the pre-collision
warning and pre-collision brak-
ing will operate.
Depending on the intersection,
assistance may not operate cor-
rectly.
■Acceleration Suppression
at Low Speed
When driving at a low speed, if
the accelerator pedal is strongly
depressed and the system
determines that there is a possi-
bility of a collision, engine output
will be restrained or the brakes
will be applied weakly to restrict acceleration. During operation,
a buzzer will sound and a warn-
ing indicator and message will
be displayed on the multi-infor-
mation display.
WARNING
■Pre-collision braking
●When the pre-collision braking
function is operating, a large
amount of braking force will be
applied.
●The pre-collision braking func-
tion is not desig
ned to hold the
vehicle stopped. If the vehicle is
stopped by pre-collision brake
control, the dri ver should oper-
ate the brakes immediately as
necessary.
●The pre-collision braking func-
tion may not operate if certain
operations are performed by the
driver. If the accelerator pedal is
being depressed strongly or the
steering wheel is being turned,
the system may determine that
the driver is taking evasive
action and possibly prevent the
pre-collision braking function
from operating.
●If the brake pedal is being
depressed, the system may
determine that t he driver is tak-
ing evasive action and possibly
delay the operation timing of the
pre-collision brake control.

1944-5. Using the driving support systems
WARNING
■Acceleration Suppression at
Low Speed
If the steering wheel is being
turned, the syste m may determine
that the driver is taking evasive
action and possibly prevent the
Acceleration Suppression at Low
Speed function from operating.
■Emergency steering assist
●The emergency steering assist
will be canceled when the sys-
tem determines that lane depar-
ture prevention control has
completed.
●Depending on operations per-
formed by the driver, emer-
gency steering assist may not
operate or operation may be
canceled.
• If the accelerator pedal is depressed strongly, the steering
wheel is turned heavily, the
brake pedal is depressed, or the
turn signal lever is operated, the
system may determine that the
driver is taking evasive action
and the emergency steering
assist may not operate.
• While the emergency steering assist is operating, if the accel-
erator pedal is depressed
strongly, the st eering wheel is
turned heavily, or the brake
pedal is depressed, the system
may determine that the driver is
taking evasive action and emer-
gency steering assist operation
may be canceled.
• While the emergency steering assist is operating, if the steer-
ing wheel is held or turned in the
opposite direction of system
operation, emergency steering
assist operation will be can-
celed.

1954-5. Using the driving support systems
4
Driving
■Operating conditions of each function of the pre-collision system
The pre-collision syst em is enabled and the system determines t hat the pos-
sibility of a frontal c ollision with a detected object is high.
However, the system will not operate in the follo wing situations:
●When the vehicle has not been driven a certain amount after a t erminal of
the battery has been disc onnected and reconnected
●When the shift lever is in R
●When the VSC OFF indicator is illuminated (only the pre-collision warning
function will be operational)
The following are the operational speeds and cancelation condit ions of each
function:
●Pre-collision warning
While the pre-collision warning is operating, if the steering w heel is operated
heavily or suddenly, the pre-co llision warning may be cancelled.
●Pre-collision brake assist
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding vehicles,
stopped vehiclesApproximately 3 to 110
mph (5 to 180 km/h)Approximately 3 to 110
mph (5 to 180 km/h)
Oncoming vehiclesApproximately 20 to 110
mph (30 to 180 km/h)Approximately 50 to 130
mph (80 to 220 km/h)
BicyclesApproximately 3 to 50
mph (5 to 80 km/h)Approximately 3 to 50
mph (5 to 80 km/h)
PedestriansApproximately 3 to 50
mph (5 to 80 km/h)Approximately 3 to 50
mph (5 to 80 km/h)
Preceding motorcycles,
stopped motorcyclesApproximately 3 to 110
mph (5 to 180 km/h)Approximately 3 to 50
mph (5 to 80 km/h)
Oncoming motorcyclesApproximately 20 to 110
mph (30 to 180 km/h)Approximately 20 to 110
mph (30 to 180 km/h)
Detectable objectsVehicle speedRelative speed between your vehicle and object
Preceding vehicles,
stopped vehiclesApproximately 20 to 110
mph (30 to 180 km/h)Approximately 7 to 110
mph (10 to 180 km/h)
BicyclesApproximately 20 to 50
mph (30 to 80 km/h)Approximately 20 to 50
mph (30 to 80 km/h)

2004-5. Using the driving support systems
• If a vehicle ahead is a child sized bicycle, is carrying a large load, is
carrying an extra passenger, or
has an unusual shape (bicycles
equipped with a child seat, tan-
dem bicycles, etc.)
• If a pedestrian or bicycle is shorter than approximately 3.2 ft. (1 m) or
taller than approximately 6.5 ft. (2
m).
• When the silhouette of a pedes- trian or bicycle is unclear (such as
when they are wearing a raincoat,
long skirt, etc.)
• When a pedestrian or bicycle is
bending forward or squatting
• When a pedestrian or bicycle 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
a s w h e n i t i s d i m ( a t d a w n o r d u s k )
or dark (at night or in a tunnel)
• When the vehicle has not been driven for a certain amount of time
after the engine was started
• While turning left /right or a few
seconds after turning left/right
• While driving around a curve and a few seconds after driving around
a curve
• When turning left/right and an oncoming vehicle i s driving in a
lane 3 or more l anes from the
vehicle
• When turning left/right and the direction of the vehicle differs
greatly from the direction traffic
flows in the oncoming lane
• When turning left/right and approaching a pedestrian which
was traveling in the same direc- tion as the vehicle and continues
straight
●In addition to the preceding, in
certain situations, such as the fol-
lowing, the emergency steering
assist may not operate properly:
• When a detectable object is too close to the vehicle
• When there is insufficient space to perform evasive steering maneu-
vers or an obstruction exists in the
evasion direction
• When there is an oncoming vehi- cle
 The pre-collision system can
be enabled/disabled through
a customize setting. ( P.412)
The system is enabled each time
the engine switch is turned to ON.
When the system is disabled,
the PCS warning light will illu-
minate and a message will be
displayed on the multi-infor-
mation display.
Changing the pre-colli-
sion setting

2014-5. Using the driving support systems
4
Driving
The pre-collision setting can
be changed on the customize
settings. ( P.412)
 When the pre-collision warn-
ing timing is changed, the
emergency steering assist
(excluding the active steering
function) timing will also be
changed.
When "Later" is selected, the
emergency steering assist
(excluding the active steering
function) will not operate in
most cases.
 When the dynamic radar
cruise control is operating, the
pre-collision warning will
operate at the “Earlier” timing,
regardless of the user setting. 
When driving on a road with
clear lane lines with the
dynamic radar cruise control
operating, lane lines and pre-
ceding and surrounding vehi-
cles are detected using the
front camera and radar sen-
sor, and the steering wheel is
operated to maintain the vehi-
cle’s lane position.
Use the this function only on high-
ways and expressways.
If the dynamic radar cruise control
is not operating, the function will not
operate.
In situations where the lane lines
are difficult to see or are not visible,
such as when in a traffic jam, sup-
port will be provided using the path
of preceding and surrounding vehi-
cles.
If the system determines that the
steering wheel has not been oper-
ated for a certain amount of time or
the steering wheel is not being
firmly gripped, the driver will be
alerted via a display and this func-
tion will be temporarily canceled.
If the steering wheel is firmly
gripped, the func tion will begin
operating again.
LTA (Lane Tracing
Assist)
LTA functions

2024-5. Using the driving support systems
When the function is operat-
ing, if the vehicl e is likely to
depart from its lane, the driver
will be alerted via a display
and buzzer.
When the buzzer sounds, check
the area around the vehicle and
carefully operate the steering wheel
to move the vehicle back to the
center of the lane.
■Operating conditions of func-
tion
This function is operable when all of
WARNING
■Before using the LTA system
●Do not overly rely on the LTA
system. The LTA 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 drivi ng. 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.
●When not using the LTA system,
turn it off using the LTA switch.

2034-5. Using the driving support systems
4
Driving
the following conditions are met:
●The LTA system detects lane lines
or the path of preceding or sur-
rounding vehicles (except when
the preceding vehicle is small,
such as a motorcycle).
●The dynamic radar cruise control
is operating.
●The lane width is approximately
10 to 13 ft. (3 to 4 m).
●The turn signal le ver is not being
operated.
●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 with a large force.
●The hands off steering wheel
warning ( P.203) is not operat-
ing.
●The vehicle is being driven in the
center of a lane.
■Temporary cancelation 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 func-
tion will automatically be restored.
(  P.202)
●If the operating conditions of a
function are no longer met while
the function is operating, a buzzer
may sound to indicate that the
function has been temporarily
canceled.
●The steering assist operation of
the function can be overridden by
the steering wheel operation of
the driver.
■Lane departure warning func-
tion when the LTA is operating
●Even if the LDA warning method is
changed to vibration of the steer-
ing wheel, if the vehicle deviates from the lane while the LTA is
operating, the warning buzzer will
sound to aler
t the driver.
●If steering wheel operation equiv-
alent to that necessary for a lane
change is detected, the system
will determine the vehicle is not
deviating from the lane and the
warning will not operate.
■Hands off steering wheel warn-
ing operation
In the following si tuations, a mes-
sage urging the driver to grip the
steering wheel and the icon shown
in the illustration will be displayed on
the multi-information display to warn
the driver. If the system detects that
the steering wheel is held, the warn-
ing will be canceled. When using the
system, make sure to grip the steer-
ing wheel firmly, regardless of
whether the warning is operating or
not.
●When the system determines the
driver is not hold ing the steering
wheel while the function is operat-
ing
If no operations are detected for a
certain amount of time, a buzzer will
sound, the warning will operate, and
the function will be temporarily can-
celed. This warnin g may also oper-
ate if the driver only operates
steering wheel a small amount con-
tinuously.
Depending on the condition of the
vehicle, handle control condition
and road surface, t he warning func-
tion may not operate.