2022 TOYOTA BZ4X Owners Manual (in English)

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5-4. Using the driving support systems
Driving
■Operating conditions of each function of the pre-collision system
The pre-collision system is enabled and the system determines t hat the possibility of a frontal collision with a detected object is high.
However, the system will not operate in the following situation s:
●When the vehicle has not been driven a certain amount after a terminal of the 12-
volt battery has been disconnected and reconnected
●When the shift position is in R
●When the VSC OFF indicator is illuminated (only the pre-collisi on warning function will be operational)
The following are the operational speeds and cancelation condit ions of each func- tion:
●Pre-collision warning
WARNING

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While the pre-collision warning is operating, if the steering w heel is operated heavily
or suddenly, the pre-collision warning may be canceled.
●Pre-collision brake assist
●Pre-collision braking
If either of the following occur while the pre-collision brakin g function is operating, it will be canceled:
Preceding motorcycles,
stopped motorcycles
Approximately 5 to 180
km/h (3 to 110 mph)
Approximately 5 to 80
km/h (3 to 50 mph)
Oncoming motorcyclesApproximately 30 to 180
km/h (20 to 110 mph)
Approximately 30 to 180
km/h (20 to 110 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding vehicles,
stopped vehicles
Approximately 30 to 180
km/h (20 to 110 mph)
Approximately 10 to 180
km/h (7 to 110 mph)
BicyclesApproximately 30 to 80
km/h (20 to 50 mph)
Approximately 30 to 80
km/h (20 to 50 mph)
PedestriansApproximately 30 to 80
km/h (20 to 50 mph)
Approximately 30 to 80
km/h (20 to 50 mph)
Preceding motorcycles,
stopped motorcycles
Approximately 30 to 180
km/h (20 to 110 mph)
Approximately 10 to 80
km/h (7 to 50 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding vehicles,
stopped vehicles
Approximately 5 to 180
km/h (3 to 110 mph)
Approximately 5 to 180
km/h (3 to 110 mph)
Oncoming vehiclesApproximately 30 to 180
km/h (20 to 110 mph)
Approximately 80 to 220
km/h (50 to 130 mph)
BicyclesApproximately 5 to 80
km/h (3 to 50 mph)
Approximately 5 to 80
km/h (3 to 50 mph)
PedestriansApproximately 5 to 80
km/h (3 to 50 mph)
Approximately 5 to 80
km/h (3 to 50 mph)
Preceding motorcycles,
stopped motorcycles
Approximately 5 to 180
km/h (3 to 110 mph)
Approximately 5 to 80
km/h (3 to 50 mph)
Oncoming motorcyclesApproximately 30 to 180
km/h (20 to 110 mph)
Approximately 30 to 180
km/h (20 to 110 mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object

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Driving
• The accelerator pedal is strongly depressed
• The steering wheel is operated heavily or suddenly
●Emergency steering assist
The emergency steering assist will not operate when the turn si gnal lights are flash- ing.
While the emergency steering assist is operating, if any of the following are per-
formed, emergency steering assist operation may be canceled:
• The accelerator pedal is strongly depressed
• The steering wheel is operated heavily or suddenly
• The brake pedal is depressed
●Intersection collision avoidance support (left/right turn)
The intersection collision avoidance support (for left/right tu rning vehicles) will not operate when the turn signal lights are not flashing.
●Intersection collision avoidance support (crossing vehicles)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding vehicles,
stopped vehicles, bicy-
cles, pedestrians, motorcy-
cles
Approximately 40 to 80
km/h (25 to 50 mph)
Approximately 40 to 80
km/h (25 to 50 mph)
Detectable objectsVehicle speedOncoming vehicle
speed
Relative speed
between your vehi-
cle and object
Oncoming vehicles
Approximately 5 to
40 km/h (3 to 25
mph)
Approximately 5 to
75 km/h (3 to 45
mph)
Approximately 10 to
115 km/h (7 to 70
mph)
Pedestrians
Approximately 5 to
30 km/h (3 to 20
mph)
-
Approximately 5 to
40 km/h (3 to 25
mph)
Bicycles
Approximately 5 to
30 km/h (3 to 20
mph)
-
Approximately 5 to
50 km/h (3 to 30
mph)
Oncoming motorcy-
cles
Approximately 5 to
40 km/h (3 to 25
mph)
Approximately 5 to
75 km/h (3 to 45
mph)
Approximately 10 to
115 km/h (7 to 70
mph)

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●Acceleration Suppression at Low Speed
The Acceleration Suppression at Low Speed function will not ope rate when the turn signal lights are flashing.
While the Acceleration Suppression at Low Speed function is ope rating, if any of the following are performed, the low speed sudden acceleration supp ression function operation will be canceled:
• The accelerator pedal is released
• The steering wheel is operated heavily or suddenly
■Detection of detectable objects
Objects are detected based on their size, shape, and movement.Depending
on the ambient brightness, movement, posture and direction of a detectable object, it may not be detected and the
system may not operate properly. The system detects shapes, such as the fol-lowing, as detectable objects.
Detectable objectsVehicle speedCrossing vehicle
speed
Relative speed
between your vehi-
cle and object
Vehicles (side)
Approximately 5 to
60 km/h (3 to 38
mph)
 Your vehicle
speed or less
 Approximately
40 km/h (25 mph)
or less
Approximately 5 to
60 km/h (3 to 38
mph)
Motorcycles (side)
Approximately 5 to
60 km/h (3 to 38
mph)
 Your vehicle
speed or less
 Approximately
40 km/h (25 mph)
or less
Approximately 5 to
60 km/h (3 to 38
mph)
Detectable objectsVehicle speedRelative speed between
your vehicle and object
Preceding vehicles,
stopped vehicles
Approximately 0 to 15
km/h (0 to 9 mph)
Approximately 0 to 15
km/h (0 to 9 mph)
PedestriansApproximately 0 to 15
km/h (0 to 9 mph)
Approximately 0 to 15
km/h (0 to 9 mph)
BicyclesApproximately 0 to 15
km/h (0 to 9 mph)
Approximately 0 to 15
km/h (0 to 9 mph)

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5-4. Using the driving support systems
Driving
■Situations in which the system may
operate even though the possibility of a collision is not high
●In certain situations, such as the fol-lowing, the system may determine that the possibility of a collision is high
and operate: • When passing a detectable object• When changing lanes while overtak-
ing a detectable object • When suddenly approaching a detect-able object
• When approaching a detectable object or other object on the roadside, such as guardrails, utility poles, trees,
walls, etc. • When there is a detectable object or other object by the roadside at the
entrance of a curve
• When there are patterns or a painting
ahead of the vehicle that may be mis- taken for a detectable object• When passing a detectable object that
is changing lanes or turning left/right
• When passing a detectable object
which is stopped to make a left/right turn
• When a detectable object stops imme-
diately before entering the path of the vehicle• When passing through a location with
a structure above the road (traffic sign, billboard, etc.)
• When approaching an electric toll gate barrier, parking lot barrier, or other barrier that opens and closes
• When turning left/right and an oncom- ing vehicle or pedestrian crosses in front of the vehicle
• When attempting to turn left/right in front of an oncoming vehicle or pedes-trian
• When turning left/right and an oncom- ing vehicle or pedestrian stops imme-diately before entering the path of the
vehicle • When turning left/right and an oncom-ing vehicle turns left/right in front of
the vehicle
• When the steering wheel is operated
toward the path of an oncoming vehi-

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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
• When a detectable object is too close
to the vehicle • When there is insufficient space to perform evasive steering maneuvers
or an obstruction exists in the evasion direction• When there is an oncoming vehicle
 The pre-collision system can be
enabled/disabled through a cus-
tomize setting. ( P.568)
The system is enabled each time the
power switch is turned to ON.
 When the system is disabled, the
PCS warning light will illuminate
and a message will be displayed
on the multi-information display.
“Pre-Collision System OFF”
 The pre-collision setting can be
changed on the customize set-
tings. ( P.568)
 When the pre-collision warning
timing is changed, the emer-
gency steering assist (excluding
the active steering function) tim-
ing will also be changed. When
“Later” is selected, the emer-
gency steering assist (excluding
the active steering function) will
not operate in most cases.
 Vehicles with a driver monitor
camera: When the system deter-
mines that the driver is not facing
forward, the pre-collision warning
and emergency steering assist
will operate at the “Earlier” tim-
ing, regardless of the user set-
ting.
 When the dynamic radar cruise
control is operating, the pre-colli-
sion warning will operate at the
“Earlier” timing, regardless of the
user setting.
Changing the pre-collision
setting

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5-4. Using the driving support systems
When driving on a road with
clear lane lines with the dynamic
radar cruise control operating,
lane lines and preceding and
surrounding vehicles are
detected using the front camera
and radar sensor, and the steer-
ing wheel is operated to maintain
the vehicle’s lane position.
Use the this function only on highways
and expressways.
If the dynamic radar cruise control is
not operating, the function will not oper-
ate.
In situations where the lane lines are
difficult to see or are not visible, such as
when in a traffic jam, support will be
provided using the path of preceding
and surrounding vehicles.
If the system determines that the steer-
ing wheel has not been operated 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 function will be temporarily can-
celed.
If the steering wheel is firmly gripped,
the function will begin operating again.
 When the function is operating, if
the vehicle 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.
LTA (Lane Tracing
Assist)
LTA functions