2023 TOYOTA BZ4X lane assist

2765-4. Using the driving support systems
Owners Manual_USA_M42C01_en
“Pre-Collision System OFF”
 The pre-collision setting can
be changed on the customize
settings. ( P.572)
 When the pre-collision warn-
ing timing is changed, the
emergency steering assist
timing will also be changed.
When “Later” is selected, the
emergency steering assist 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

2775-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
 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.

2785-4. Using the driving support systems
Owners Manual_USA_M42C01_enthe following cond
itions 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.278) 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.277)
●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.

2815-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
The LDA system warns the
driver if the vehicle may deviate
from the current lane or course
*,
and also can slightly operate the
steering wheel to help avoid
deviation from the lane or
course
*.
The front camera is used to
detect lane lines or a course
*.
*: Boundary between the asphalt and grass, soil, etc., or structures,
such as a curb, guardrail, etc.
■Lane departure alert func-
tion
When the system determines
that the vehicle might depart
from its lane or course
*, a warn-
ing is displayed on a display,
and either a warning buzzer will
sound or the steering wheel will
vibrate to alert the driver.
Check the area around your vehicle
and carefully operate the steering
wheel to move the vehicle back to
the center of the lane or course
*.
Vehicles with BSM: If the system
determines that the vehicle may
collide with a vehicle in an adjacent
lane, the lane de parture alert will
operate even if the turn signals are
operating.
*: Boundary between the asphalt and grass, soil, etc., or structures, such as a curb,
guardrail, etc.
■Lane departure prevention
function
If the system determines that
the vehicle is likely to depart
from its lane or course
*, it pro-
vides assistance through steer-
ing wheel operations to help
avoid deviation from the lane or
course.
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, a warning message
may be displayed and a warning
buzzer may sound to alert the
driver.
Vehicles with BSM: If the system
determines that the vehicle may
collide with a vehicl e in an adjacent
lane, the lane departure prevention
function will operate even if the turn
signals are operating.
LDA (Lane Depar ture
Alert)
Basic functions

2825-4. Using the driving support systems
Owners Manual_USA_M42C01_en
*: Boundary between the asphalt and grass, soil, etc., or structures,
such as a curb, guardrail, etc.
■Break suggestion function
If the vehicle is swaying, a mes-
sage will be displayed and a
warning buzzer will sound to
urge the driver to take a break.
■Operating conditions of each
function
●Lane departure alert/prevention
function
WARNING
■Before using the LDA system
●Do not overly re ly on the LDA
system. The LDA system is a
system which provides auto-
mated assistance in driving.
However, as it is not a system
which reduces the amount of
attention necessary for safe
driving. The driver is solely
responsible for paying attention
to their surroundings and oper-
ating the steering wheel as nec-
essary to ensure safety. Also,
the driver is responsible for tak-
ing 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.

2835-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
This function is operable when all of
the following cond itions 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) o r more if vehi-
cles, motorcycles, bicycles, or
pedestrians are detected near the
lane.
• The system reco gnizes 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 l ever is not being
operated. (Vehicles with BSM:
Except when a vehicle is detected
in the direction that the turn signal
lever is 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 sufficiently to perform a
lane change.
*: Boundary between the asphalt
and grass, soil, etc., or structures,
such as a curb, guardrail, etc.
●Break suggestion function
This function is operable when all of
the following cond itions are met:
• The vehicle speed is approxi- mately 32 mph (50 km/h) or more.
• The lane width is approximately
9.8 ft. (3 m) or more.
■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 function
will automatically be restored.
(  P.282)
■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 ste ered 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.
●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 sys-
tem, make sure to grip the steering
wheel firmly, rega rdless of whether
the warning is operating or not.

2845-4. Using the driving support systems
Owners Manual_USA_M42C01_en
●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.572)
 The settings of the LDA can be changed through on the
customize settings. (
P.572)
Changing LDA settings
WARNING
■Situations in which the LDA
should not be used
In the following situations, disable
the LDA system. Failure to do so
may lead to an accident.
●When it is necessary to disable
the system: P.259
■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.264
●Situations in which the sensors
may not operate properly:
P.263
●Situations in which some or all
of the functions of the system
cannot operate: P.264

2855-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
The operating state of the lane departure alert function and st eering
assist operation of the lane departure prevention function are indi-
cated.
Displays and system operation
IndicatorLane dis- playSteering iconCondition
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 detec ted 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 prev ention 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