Long TOYOTA BZ4X 2022 (in English) Service Manual

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5-4. Using the driving support systems
cle
■Situations in which the system may
not operate properly
●In certain situations, such as the fol-
lowing, a detectable object may not be detected by the front sensors, and the system may not operate properly:
• When a detectable object is approaching your vehicle• When your vehicle or a detectable
object is wandering • When a detectable object makes an abrupt maneuver (such as sudden
swerving, acceleration or decelera- tion)• When suddenly approaching a detect-
able object • When the detectable object is near a wall, fence, guardrail, manhole cover,
steel plate on the road surface, or another vehicle• When there is a structure above a
detectable object • When part of a detectable object is hidden by another object (large lug-
gage, umbrella, guardrail, etc.) • When multiple detectable objects are overlapping
• When a bright light, such as the sun, is reflecting off of a detectable object• When a detectable object is white and
looks extremely bright • When the color or brightness of a detectable object causes it to blend in
with its surroundings • When a detectable object cuts in front of or suddenly emerges in front of
your vehicle • When approaching a vehicle which is diagonal
• If a vehicle ahead is a child sized bicy- cle, is carrying a large load, is carrying an extra passenger, or has an unusual
shape (bicycles equipped with a child seat, tandem bicycles, etc.)• If a pedestrian or bicycle is shorter
than approximately 1 m (3.2 ft.) or taller than approximately 2 m (6.5 ft.).• When the silhouette of a pedestrian or
bicycle is unclear (such as when they are wearing a raincoat, long skirt, etc.)• When a pedestrian or bicycle is bend-
ing forward or squatting
• When a pedestrian or bicycle is mov- ing 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 or in a tunnel)
• When the vehicle has not been driven for a certain amount of time after the EV system was started
• While turning left/right or a few sec- onds after turning left/right• While driving around a curve and a
few seconds after driving around a curve• When turning left/right and an oncom-
ing vehicle is driving in a lane 3 or more lanes from the vehicle• When turning left/right and the direc-
tion of the vehicle differs greatly from the direction traffic flows in the oncoming lane
• When turning left/right and approach- ing a pedestrian which was traveling
in the same direction as the vehicle and continues straight
●In addition to the preceding, in certain situations, such as the following, the emergency steering assist may not
operate properly:

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5-4. Using the driving support systems
Driving
■Operating conditions of function
This function is operable when all of the following conditions are met:
●The LTA system detects lane lines or
the path of preceding or surrounding
vehicles (except when the preceding vehicle is small, such as a motorcy-cle).
●The dynamic radar cruise control is operating.
●The lane width is approximately 3 to 4 m (10 to 13 ft.).
●The turn signal lever is not being 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
with a large force.
●The hands off steering wheel warning
( P.296) is not operating.
●The vehicle is being driven in the
center of a lane.
■Temporary cancelation of functions
●When the operating conditions are no
longer met, a function may be tempo- rarily canceled. However, when the operation conditions are met again,
operation of the function will automati- cally be restored. ( P.295)
●If the operating conditions of a func- tion are no longer met while the func-tion 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 function
when the LTA is operating
●Even if the LDA warning method is
changed to vibration of the steering wheel, if the vehicle deviates from the lane while the LTA is operating, the
warning buzzer will sound to alert the driver.
●If steering wheel operation equivalent to that necessary for a lane change is
WARNING
■Before using the LTA system
●Do not overly rely on the LTA sys-tem. The LTA system is not a sys-
tem which provides automated assistance in driving and it is not a system which reduces the amount
of attention necessary for safe driv- ing. The driver is solely responsible for paying attention to their sur-
roundings and operating the steer- ing wheel as necessary to ensure safety. Also, the driver is responsi-
ble for taking adequate breaks when fatigued, such as when driv-ing for a long time.
●Failure to perform appropriate driv-ing operations and pay careful
attention may lead to an accident.
●When not using the LTA system,
turn it off using the LTA switch.

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5-4. Using the driving support systems
■Break suggestion function
If the vehicle is swaying, a mes-
sage will be displayed and a warn-
ing buzzer will sound to urge the
driver to take a break.
■Operating conditions of each func- tion
●Lane departure alert/prevention func-tion
This function is operable when all of the
following conditions are met:
• The vehicle speed is approximately 50 km/h (30 mph) or more. Operation may be possible when the vehicle
speed is approximately 40 km/h (25 mph) or more if vehicles, 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 3 m
(9.8 ft.) or more. • The turn signal lever is not being oper-ated. (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.
WARNING
■Before using the LDA system
●Do not overly rely on the LDA sys-
tem. The LDA system is a system which provides automated assis-tance 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 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 driv-
ing operations and pay careful attention may lead to an accident.

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5-4. Using the driving support systems
Driving
• 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 conditions are met:
• The vehicle speed is approximately 50 km/h (32 mph) or more.• The lane width is approximately 3 m
(9.8 ft.) or more.
■Temporary cancelation of functions
When the operating conditions are no longer met, a function may be temporar-
ily canceled. However, when the opera- tion conditions are met again, operation of the function will automatically be
restored. ( P.300)
■Operation of the lane departure alert function/lane departure pre-vention function
●Depending on the vehicle speed, road conditions, lane departure angle, etc.,
operation of the lane departure pre- vention 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 cus- tomize 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 function may not operate if the system judges
that the vehicle is intentionally being steered to avoid a pedestrian or parked vehicle.
●It may not be possible for the system 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 warning
operation
In the following situations, a message 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 steering wheel firmly, regardless of whether the warning is operating or not.
●When the system determines that the driver is not securely holding the
steering wheel, or the steering wheel is not being operated when the steer-ing assist operation of the lane depar-
ture prevention function is operating
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
If the vehicle is swaying, a message will
be displayed and a warning buzzer will sound to urge the driver to take a break.

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5-4. Using the driving support systems
Driving
Constant speed cruising:
When there are no vehicles ahead
The vehicle drives at the speed set by the driver.
If the set vehicle speed is exceeded while driving down a hill, the set vehicle speed
display will blink and a buzzer will sound.
Deceleration and follow-up cruising
When a preceding vehicle driving slower than the set vehicle sp eed is
detected
When a vehicle is detected driving ahead of your vehicle, the v ehicle automatically
decelerates and if a greater reduction in vehicle speed is nece ssary, the brakes are
applied (the stop lights will come on at this time). The vehicl e is controlled to main-
tain the vehicle-to-vehicle distance set by the driver, in acco rdance with changes in
the speed of the preceding vehicle. If vehicle deceleration is not sufficient and the
vehicle approaches the vehicle ahead, the approach warning will sound.
Acceleration
When there are no longer any preceding vehicles driving slower than the
set vehicle speed
The vehicle accelerates until the set vehicle speed is reached and then resumes
constant speed cruising.
Starting off: If a preceding vehicle stops, the vehicle will al so stop (con-
trolled stop). After the preceding vehicle starts off, pressing the “RES”
switch or depressing the accelerator pedal will resume follow-u p cruising
(start off operation). If a start off operation is not performe d, the con-
Basic functions

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5-4. Using the driving support systems
Driving
■Adjusting the set vehicle
speed using the switches
To change the set vehicle speed,
press the “+” or “-” switch until the
desired speed is displayed.
1 Increase set vehicle speed
2 Decrease set vehicle speed
Short press adjustment: Press the
switch
Long press adjustment: Press and hold
the switch until the desired set vehicle
speed is reached.
The set vehicle speed will increase
or decrease as follows:
Short press adjustment: By 1 km/h (0.6
mph) or 1 mph (1.6 km/h) each time the
switch is pressed
Long press adjustment: Increases or
decreases in 5 km/h (3.1 mph) or 5
mph (8 km/h) increments continuously
while the switch is pressed and held
The set vehicle speed adjustment
increment can be changed through a
customize setting.
■Increasing the set vehicle
speed using the accelerator
pedal
1 Depress the accelerator pedal
to accelerate the vehicle to the
desired vehicle speed.
2 Press the “+” switch.
1 Press the cancel switch or driv-
ing assist switch to cancel con-
trol.
Control will also be canceled if the brake pedal is depressed. (If the vehi-
cle has been stopped by system con- trol, depressing the brake pedal will not cancel control.)
2 Press the “RES” switch to
resume control.
Each time the switch is pressed,
the vehicle-to-vehicle distance set-
ting will change as follows:
If a preceding vehicle is detected, the
preceding vehicle mark will be dis-
played.
Adjusting the set vehicle
speed
Canceling/resuming control
Changing the vehicle-to-
vehicle distance

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5-4. Using the driving support systems
The actual vehicle-to-vehicle distance
varies in accordance with the vehicle
speed. Also, when the vehicle is
stopped by system control, it will be
stopped at a certain distance from the
preceding vehicle, depending on the
situation, regardless of the setting.
■Operating conditions
●D shift position is selected.
●The desired set speed can be set when the vehicle speed is approxi-
mately 30 km/h (20 mph) or more. (If the vehicle speed is set while driving at below approximately 30 km/h [20
mph], the set speed will be set to approximately 30 km/h [20 mph].)
■Accelerating after setting the vehi-cle speed
As with normal driving, acceleration can
be performed by depressing the acceler-
ator pedal. After accelerating, the vehi- cle will return to the set vehicle speed. However, while in vehicle-to-vehicle dis-
tance control mode, the vehicle speed may decrease to below the set vehicle speed in order to maintain the distance
from the preceding vehicle.
■When the vehicle is stopped by system control during follow-up cruising
●When the “RES” switch is pressed while the vehicle is stopped by system
control, if the preceding vehicle starts off within approximately 3 seconds, follow-up cruising will resume.
●If the preceding vehicle starts off within approximately 3 seconds of the
vehicle being stopped by system con- trol, follow-up cruising will resume.
■Automatic cancelation of vehicle-to-vehicle distance control mode
In the following situations, vehicle-to- vehicle distance control mode will be canceled automatically:
●When the brake control or output restriction control of a driving support
system operates (For example: Pre- Collision System, drive-start control)
●When the parking brake has been operated
●When the vehicle is stopped by sys-tem control on a steep incline
●When any of the following are detected while the vehicle is stopped by system control:
• The driver’s seat belt is unfastened • The driver’s door is opened• Approximately 3 minutes have
elapsed since the vehicle was stopped
The parking brake may be actived auto-
matically.
The shift position may automatically change to P. ( P.250)
●Situations in which some or all of the functions of the system cannot oper-
ate: P. 2 8 1
Illustra-
tion
Number
Ve hi cl e -
to-vehi-
cle dis-
tance
Approximate Dis-
tance (Vehicle
Speed: 100 km/h
[60mph])
1Extra
long
Approximately 60
m (200 ft.)
2LongApproximately 45
m (145 ft.)
3MediumApproximately 30
m (100 ft.)
4ShortApproximately 25
m (85 ft.)

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5-4. Using the driving support systems
Driving
The cruise control indicator will illumi-
nate.
2 Using the accelerator pedal,
accelerate to the desired vehicle
speed (approximately 30 km/h
[20 mph] or more), and press
the driving assist switch to set
the set vehicle speed.
The vehicle speed at the moment the
switch is released will be the set vehicle speed.
■Adjusting the set vehicle
speed using the switches
To change the set vehicle speed,
press the “+” or “-” switch until the
desired speed is displayed.
1 Increase set vehicle speed
2 Decrease set vehicle speed
The set vehicle speed will increase
or decrease as follows:
Short press adjustment: By 1 km/h (0.6
mph) or 1 mph (1.6 km/h) each time the
switch is pressed
Long press adjustment: Increases con-
tinuously while the switch is pressed
and held
■Increasing the set vehicle
speed using the accelerator
pedal
1 Depress the accelerator pedal
to accelerate the vehicle to the
desired vehicle speed.
2 Press the “+” switch.
Adjusting the set vehicle
speed
Canceling/resuming control

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5-4. Using the driving support systems
2Decrease set vehicle speed
Short press adjustment: Press the
switch
Long press adjustment: Press and hold
the switch until the desired set vehicle
speed is reached.
The set vehicle speed will increase or
decrease as follows:
Short press adjustment: By 1 km/h (0.6
mph) or 1 mph (1.6 km/h) each time the
switch is pressed
Long press adjustment: Increases or
decreases in 5 km/h (3.1 mph) or 5
mph (8 km/h) increments continuously
while the switch is pressed and held
The set vehicle speed adjustment
increment can be changed through a
customize setting.
1 Press the cancel switch or driv-
ing assist switch to cancel con-
trol.
2 Press the “RES” switch to
resume control.
When control is canceled, the speed
limiter indicator will change from illumi- nated in green to white.
■Exceeding the set speed
In the following situations, if the vehicle
speed exceeds the set vehicle speed, the displayed set vehicle speed will flash:
●When the accelerator pedal is deeply depressed
●When driving down a slope
■Automatic cancellation of the speed limiter
●Situations in which some or all of the functions of the system cannot oper-
ate: P. 2 8 1
■Changes in brake operation sound and pedal response
 P. 4 0 8
When RSA function is enabled and
the speed limiter is operating, if a
speed limit sign is detected, the
detected speed limit will be dis-
played with an up/down arrow. The
set vehicle speed can be
increased/reduced to the detected
speed limit by pressing and holding
the “+” or “-” switch.
■When the set veh icle speed is
lower than the detected speed
limit
Press and hold the “+” switch.
Canceling/resuming control
Speed limiter with Road
Sign Assist

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5-4. Using the driving support systems
■Conditions under which the system
will not detect a vehicle
●Safe Exit Assist does not detect the
following objects, vehicles, and bicy- cles:• Vehicles or bicycles which are
approaching slowly • Vehicles or bicycles which are deter-mined to have a low possibility of col-
liding with a door (other than the back door) when opened• Vehicles or bicycles which are deter-
mined to have a low possibility of col- liding with a door when opened• Vehicles or bicycles which are
approaching from directly behind • Vehicles or bicycles which are approaching from the front
• Guardrails, walls, signs, parked vehi- cles, and other stationary objects• Animals, etc.
●In situations such as the following, Safe Exit Assist will not operate:
• When 3 minutes or more have elapsed since the EV system off (the time which operation is possible may
be extended if a door is opened and closed)• When your vehicle is not completely
stopped
■Conditions under which the system may not function correctly
●Vehicles and bicycles may not be effectively detected in the following situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surrounding area
• When mud, snow, ice, a sticker, etc., is covering the sensor or surrounding area on the rear bumper
• When driving on a road surface that is wet with standing water during bad weather, such as heavy rain, snow, or
fog • When a vehicle or bicycle approaches from behind a nearby parked vehicle
• When an approaching vehicle or bicy- cle suddenly changes direction• Immediately after a vehicle or bicycle
starts moving
• When the back door is open
• When a bicycle carrier, ramp, or other accessory is installed to the back of the vehicle
• When a parked vehicle, wall, sign, person or other stationary object is behind the vehicle
• When the vehicle is stopped at an angle to the road• When a vehicle is traveling near an
approaching vehicle or bicycle • When an approaching vehicle or bicy-cle is traveling along a stationary
object, such a wall or sign • When a vehicle or bicycle is approaching at high speed
• When towing with the vehicle • When stopped on a steep incline• When stopped on a curve or at the
exit of a curve
●Instances of the Safe Exit Assist
unnecessarily detecting a vehicle and/or object may increase in the fol-lowing situations:
• When the sensor is misaligned due to a strong impact to the sensor or its surrounding area
• When a vehicle or bicycle approaches from behind your vehicle at an angle• When the vehicle is stopped at an
angle to the road • When a vehicle or bicycle approaches from behind a parked vehicle at an
angle • When a parked vehicle, wall, sign, person or other stationary object is
behind the vehicle • When an approaching vehicle or bicy-cle suddenly changes direction
• When an approaching vehicle or bicy- cle is traveling along a stationary object, such a wall or sign
• When the back door is open • When a bicycle carrier, ramp, or other accessory is installed to the back of
the vehicle • When a vehicle or bicycle is approaching at high speed
• When towing with the vehicle • When stopped on a steep incline• When stopped on a curve or at the
exit of a curve