2023 TOYOTA BZ4X brake

2645-4. Using the driving support systems
Owners Manual_USA_M42C01_en
●When a detectable vehicle is car-
rying a load which protrudes from
its cargo area
●When a detectable vehicle has lit-
tle exposed metal, such as a vehi-
cle which is parti ally covered with
cloth, etc.
●When a detectabl e vehicle is
irregularly shaped , such as a trac-
tor, sidecar, etc.
●When the distance between the
vehicle and a detectable vehicle
has become extremely short
●When a detectable vehicle is at an
angle
●When snow, mud, etc. is attached
to a detectable vehicle
●When driving on the following
kinds of roads:
• Roads with sharp curves or wind- ing roads
• Roads with chang es in grade,
such as sudden inclines or
declines
• Roads which is slo ped to the left
or right
• Roads with deep ruts
• Roads which are rough and
unmaintained
• Roads which frequently undulate
or are bumpy
●When the steering wheel is being
operated frequently or suddenly
●When the vehicle is not in a con-
stant position within a lane
●When parts related to this system,
the brakes, etc. are cold or
extremely hot, wet, etc.
●When the wheels are misaligned
●When driving on slick road sur- faces, such as when it is covered
with ice, snow, gravel, etc.
●When the course of the vehicle
differs from the
shape of a curve
●When the vehicle speed is exces-
sively high when entering a curve
●When entering/exiting a parking
lot, garage, car elevator, etc.
●When driving in a parking lot
●When driving through an area
where there are obstructions
which may contact your vehicle,
such as tall grass , tree branches,
a curtain, etc.
■Situations in which the lane
may not be detected
●When the lane is extremely wide
or narrow
●Immediately after changing lanes
or passing through an intersection
●When driving in a temporary lane
or lane regulated by construction
●When there are s tructures, pat-
terns, shadows which are similar
to lane lines in the surrounding
●When the lane lines are not clear
or driving on a wet road surface
●When a lane line is on a curb
●When driving on a bright, reflec-
tive road surface, such as con-
crete
■Situations in which some or all
of the functions of the system
cannot operate
●When a malfunction is detected in
this system or a related system,
such as the brakes, steering, etc.
●When the VSC, TRAC, or other
safety related system is operating
●When the VSC, TRAC, or other
safety related system is off
■Changes in brake operation
sound and pedal response
●When the brakes have been oper-
ated, brake operation sounds may
be heard and the brake pedal

2655-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
response may cha nge, but this
does not indicate a malfunction.
●When the system is operating, the
brake pedal may feel stiffer than
expected or sink. In either situa-
tion the brake pedal can be
depressed further. Further
depress the brake pedal as nec-
essary.
■Certification
 P. 6 1 9
PCS (Pre-Collision Sys-
tem)
The pre-collision system
uses sensors to detect
objects ( P.266) in the path
of the vehicle. When the
system determines that the
possibility of a frontal colli-
sion with a detectable
object is high, a warning
operates to urge the driver
to take evasive action and
the potential brake pressure
is increased to help the
driver avoid the collision. If
the system determines that
the possibility of a collision
is extremely high, the
brakes are automatically
applied to help avoid the
collision or help reduce the
impact of the collision.
The pre-collision system can
be disabled/enabled and the
warning timing can be
changed. ( P.275)

2675-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
“Accelerator Pedal is
Pressed”
■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 inter-
section, assistance may not
operate correctly.
 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

2685-4. Using the driving support systems
Owners Manual_USA_M42C01_en
■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 correctly.
■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, EV system
output will be restrained or the
brakes will be applied weakly to
restrict acceleration. During operation, a buzzer will sound
and a warning indicator and
message will be displayed on
the multi-information display.
“Accelerator Pedal is
Pressed”
WARNING
■Pre-collision braking
●When the pre-collision braking
function is operating, a large
amount of braking force will be
applied.
●Pre-collision braking function is
not intended for remain
stopped. If the vehicle is
stopped by pre-collision brak-
ing function, the driver should
operate the brakes as neces-
sary.
●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.

2695-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
WARNING
●If the brake pedal is being
depressed, the system may
determine that the driver is tak-
ing evasive action and possibly
delay the operation timing of the
pre-collision brake control.
■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.

2705-4. Using the driving support systems
Owners Manual_USA_M42C01_en
■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 12-volt battery has been d isconnected and reconnected
●When the shift position 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 canceled.
●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)

2725-4. Using the driving support systems
Owners Manual_USA_M42C01_en• The steering wheel is ope
rated heavily or suddenly
• The brake pedal is depressed
●Intersection collisio n avoidance support (left/right turn)
The intersection collision avoida nce support (for left/right turning vehicles)
will not operate when the turn signal light s are not flashing.
●Intersection collision avoidance support (crossing vehicles)
Detectable
objectsVehicle speedOncoming vehicle speedRelative speed between your
vehicle and object
Oncoming vehi- clesApproximately 3 to 25 mph (5 to 40 km/h)Approximately 3 to 45 mph (5 to 75 km/h)Approximately 7
to 70 mph (10 to 115 km/h)
Pedestrians
Approximately 3 to 20 mph (5 to 30 km/h)
-
Approximately 3 to 25 mph (5 to 40 km/h)
Bicycles
Approximately 3 to 20 mph (5 to 30 km/h)
-
Approximately 3 to 30 mph (5 to 50 km/h)
Oncoming motor- cyclesApproximately 3 to 25 mph (5 to 40 km/h)Approximately 3 to 45 mph (5 to 75 km/h)Approximately 7
to 70 mph (10 to 115 km/h)
Detectable objectsVehicle speedCrossing vehicle speedRelative speed between your
vehicle and object
Vehicles (side)
Approximately 3 to 38 mph (5 to 60 km/h)
Your vehicle
speed or less
 Approximately
25 mph (40
km/h) or less
Approximately 3 to 38 mph (5 to 60 km/h)
Motorcycles (side)Approximately 3 to 38 mph (5 to 60 km/h)
Your vehicle
speed or less
 Approximately
25 mph (40
km/h) or less
Approximately 3 to 38 mph (5 to 60 km/h)

2905-4. Using the driving support systems
Owners Manual_USA_M42C01_en
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 blin k and a buzzer will sound.
Deceleration and follow-up cruising
When a preceding vehicle driving slower than the set vehicle
speed is detected
When a vehicle is detected driving ahead of your vehicle, the v ehicle auto-
matically decelerates and if a greater reduction in vehicle spe ed is neces-
sary, the brakes are applied (the stop lights will come on at t his time). The
vehicle is controlled to maintai n the vehicle-to-vehicle distance set by the
driver, in accordance with changes in the speed of the precedin g vehicle. If
vehicle deceleration is not sufficient and the vehicle approaches the vehicle
ahead, the approach wa rning will sound.
Acceleration
When there are no longer any preceding vehicles driving slower
than the set vehicle speed
The vehicle accelerates until th e set vehicle speed is reached and then
resumes constant speed cruising.
Starting off: If a preceding vehi cle stops, the vehicle will also stop
(controlled stop). After the preceding vehicle starts off, pressing
the “RES” switch or depressing the accelerator pedal will resum e
follow-up cruising (start off operation). If a start off operat ion is not
performed, the controlled stop will continue.
Basic functions