warning light TOYOTA BZ4X 2023 Workshop Manual

2625-4. Using the driving support systems
Owners Manual_USA_M42C01_en
WARNING
●Always keep the windshield
clean.
• If the windshield is dirty or cov- ered with an o ily film, water
droplets, snow, etc., clean the
windshield.
• Even if a glass coating agent is applied to the windshield, it will
still be necessary to use the
windshield wipers to remove
water droplets, etc. from the
area of the windshield in front of
the front camera.
• If the inner side of the wind- shield where the front camera is
installed is dirty, contact your
Toyota dealer
●Do not attach stickers (including
transparent stickers) or other
items to the area of the wind-
shield in front o f the front cam-
era (shaded area in the
illustration).
Approximately 1.6 in. (4 cm)
Approximately 1.6 in. (4 cm)
●If the part of the windshield in
front of the front camera is
fogged up or covered with con-
densation or ice, use the wind-
shield defogger to remove the
fog, condensation, or ice.
●If water droplets cannot be
properly removed from the area
of the windshield in front of the
front camera by the windshield
wipers, replace the wiper insert
or wiper blade.
●Do not attach window tint to the
windshield.
●Replace the windshield if it is
damaged or cracked. If the
windshield has been replaced,
recalibration of the front camera
will be necessary. For details,
contact your Toyota dealer.
●Do not allow liquids to contact
the front camera.
●Do not allow bright lights to
shine into the front camera.
●Do not damage th e lens of the
front camera o r allow it to
become dirty. When cleaning
the inside of the windshield, do
not allow glass cleaner to con-
tact the lens of the front camera.
Do not touch the lens of the
front camera. If the lens of the
front camera is dirty or dam-
aged, contact your Toyota
dealer.
●Do not subject the front camera
to a strong impact.
●Do not change the position or
orientation of the front camera
or remove it.
●Do not disassemble the front
camera.
●Do not modify any parts around
the front camera , such as the
inside rear view mirror or ceil-
ing.
●Do not attach accessories
which may obstruct the front
camera to the hood, front grille,
or front bumper. For details,
contact your Toyota dealer.
●If a surfboard or other long
object is to be mounted on the
roof, make sure that it will not
obstruct the front camera.

2635-4. Using the driving support systems
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5
Driving
■Situations in which the sensors
may not operate properly
●When the height or inclination of
the vehicle has been changed due
to modifications
●When the windshield is dirty,
fogged up, cracked or damaged
●When the ambient temperature is
high or low
●When mud, water, snow, dead
insects, foreign matter, etc., is
attached to the fr ont of the sensor
●When in inclement weather such
as heavy rain, fog, snow, or a
sandstorm
●When water, snow, dust, etc. is
thrown up in front of the vehicle, or
when driving through mist or
smoke
●When the headlig hts are not illu-
minated while driving in the dark,
such as at night o r when in a tun-
nel
●When the lens of a headlight is
dirty and illumination is weak
●When the headlights are mis-
aligned
●When a headlight is malfunction-
ing
●When a the headlights of another vehicle, sunlight, or reflected light
shines directly into the front cam-
era
●When the brightness of the sur-
rounding area changes suddenly
●When driving near a TV tower,
broadcasting station, electric
power plant, radar equipped vehi-
cles, etc., or other location where
strong radio waves or electrical
noise may be present
●When a wiper blade is blocking
the front camera
●When in a location or near objects
which strongly reflect radio waves,
such as the following:
• Tunnels
• Truss bridges
• Gravel roads
• Rutted, snow-covered roads
• Walls
• Large trucks
• Manhole covers
• Guardrail
• Metal plates
●When near a step or protrusion
●When a detectable vehicle is nar-
row, such as a small mobility vehi-
cle
●When a detectable vehicle has a
small front or rear end, such as an
unloaded truck
●When a detectable vehicle has a
low front or rear end, such as a
low bed trailer
●When a detectable vehicle has
extremely high ground clearance
WARNING
●Do not modify or change the
headlights and other lights.
■Front camera installation area
on the windshield
If the system determines that the
windshield may be fogged up, it
will automatically operate the
heater to defog the part of the
windshield around the front cam-
era. When cleaning, etc., be care-
ful not to touch the area around
the front camera until the wind-
shield has cooled sufficiently, as
touching it may cause burns.

2755-4. Using the driving support systems
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5
Driving
• 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 EV syst em 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.572)
The system is enabled each time
the power 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

2815-4. Using the driving support systems
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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

3005-4. Using the driving support systems
Owners Manual_USA_M42C01_en
Operation of this system is sep-
arated into 4 control states.
Through control state “warning
phase 1” and “warning phase 2”,
the system determines if the
driver is aware and responsive
while outputting a warning and
controlling the vehicle speed. If
the system determines the
driver is not responsive, it will
operate in control state “deceler-
ation stop phase” and “stop hold
phase” and decelerate and stop
the vehicle. It will then operate
continuously in “stop hold
phase”.
■Operating conditions
This system operates when all of
the following conditions are met:
●When the LTA is on
●When the vehicle speed is
approximately 30 mph (50 km/h)
or more
■Operation cancelation condi-
tions
In the following si tuations, system
operation will be canceled:
●When LTA control has been can-
celed (the LTA switch has been
pressed, etc.)
●When the dynamic radar cruise
control has been canceled
●When driver operations are
detected (the steering wheel is
held, the brake pedal, accelerator
pedal, parking brake, hazard light
switch, or turn signal lever is oper-
ated)
●When the driving assist switch is
pressed while in the stop and hold
phase
●When the power switch has been
turned from ON to OFF
●Situations in which some or all of
the functions of the system cannot
operate: P. 2 6 4
■LTA control when operation is
canceled
When emergency driving stop sys-
tem operation is canceled, LTA con-
trol may also be canceled.
If driving operations are not
detected after the hands off
steering wheel warning oper-
ates, a buzzer will sound inter-
mittently and a message will be
displayed to warn the driver, and
the system will judge if the driver
is responsive or not. If driving
operations, such as holding the
steering wheel, are not per-
WARNING
●After this system operates, pas-
sengers should attend to the
driver as necessary and take
appropriate hazard prevention
measures, such as moving to a
place where safety can be
ensured, such as the shoulder
of the road or b ehind a guard-
rail.
●This system detects the condi-
tion of the driver through the
operation of the steering wheel.
This system may operate if the
driver is aware but intentionally
and continuously does not oper-
ate the vehicle. Also, the system
may not operate if it cannot
determine that the driver is not
responsive, such as if they are
leaning on the steering wheel.
Summary of the system
Warning phase 1

3015-4. Using the driving support systems
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5
Driving
formed within a certain amount
of time, the system will enter
warning phase 2.
After entering warning phase 2,
a buzzer will sound in short
intervals and a message will be
displayed to warn the driver, and
the vehicle will slowly deceler-
ate. If driving operations, such
as holding the steering wheel,
are not performed within a cer-
tain amount of time, the system
will determine that the driver is
not responsive and enter the
deceleration stop phase.
The audio system will be muted
until the driver becomes respon-
sive.
When the vehicle is decelerating,
the brake lights may illuminate,
depending on the road conditions,
etc.
After entering the deceleration
stop phase, a buzzer will sound
continuously and a message will
be displayed to warn the driver,
and the vehicle will slowly decel-
erate and stop. After the vehicle
stops, the system will enter the
stop and hold phase.
After the vehicle is stopped, the
parking brake will be applied automatically. After entering the
stop and hold phase, the buzzer
will continue sounding continu-
ously and the emergency flash-
ers (hazard lights) will flash to
warn other drivers of the emer-
gency.
Warning phase 2
Deceleration stop phase
Stop hold phase

3025-4. Using the driving support systems
Owners Manual_USA_M42C01_en
*: If equipped
Meter control switches
Turning the Blind Spot Monitor
on/off.
Outside rear view mirror indi-
cators
When a vehicle is detected in a
blind spot of the outside rear view
mirrors or approaching rapidly from
behind into a blind spot, the outside
rear view mirror indicator on the
detected side will illuminate. If the
turn signal lever is operated toward
the detected side, the outside rear
view mirror indicator flashes.
Driving assist information
indicator
Illuminates when the Blind Spot
Monitor is turned off. At this time,
“Blind Spot Monitor OFF” will be
displayed on the multi-information
display.
■Outside rear view mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicator may be difficult
to see.
■Customization
Some functions can be customized.
(  P.573)
BSM (Blind Spot Moni-
tor)*
The Blind Spot Monitor is a
system that uses rear side
radar sensors installed on
the inner side of the rear
bumper on the left and right
side to assist the driver in
confirming safety when
changing lanes.
WARNING
■Cautions regarding the use of
the system
●The driver is solely responsible
for safe driving. Always drive
safely, taking care to observe
your surroundings.
●The Blind Spot Monitor is a sup-
plementary function which alerts
the driver that a vehicle is in a
blind spot of the outside rear
view mirrors or is approaching
rapidly from behind into a blind
spot. Do not overly rely on the
Blind Spot Monitor. As the func-
tion cannot judge if it is safe to
change lanes, over reliance
could lead to an accident result-
ing in death or serious injury.
As the system may not function
correctly under certain condi-
tions, the driver’s own visual con-
firmation of safety is necessary.
System components

3035-4. Using the driving support systems
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5
Driving
■Certification
 P. 6 2 1
The blind spot monitor can be
enabled/disabled on of the
multi-information display.
( P.156)
When the Blind Spot Monitor is
off, the driving assist information
indicator ( P.149) will illumi-
nate. At this time, “Blind Spot
Monitor OFF” will be displayed
on the multi-information display.
WARNING
■To ensure the system can
operate properly
Blind Spot Monitor sensors are
installed behind the left and right
sides of the rear bumper respec-
tively. Observe the following to
ensure the Blind Spot Monitor can
operate correctly.
●Keep the sensors and the sur-
rounding areas on the rear
bumper clean at all times.
If a sensor or its surrounding area
on the rear bumper is dirty or cov-
ered with snow, the Blind Spot
Monitor may not operate and a
warning message ( P.523) will
be displayed. In this situation,
clear off the dirt or snow and drive
the vehicle with the operation con-
ditions of the BSM function
(  P.305) satisfied for approxi-
mately 10 minutes. If the warning
message does not disappear,
have the vehicle inspected by
your Toyota dealer.
●Do not attach accessories,
stickers (including transparent
stickers), aluminum tape, etc.,
to a sensor or its surrounding
area on the rear bumper.
●Do not subject a sensor or its
surrounding area on the rear
bumper to a strong impact.
If a sensor is moved even
slightly off position, the system
may malfunction and vehicles
may not be detected correctly.
In the following si tuations, have
your vehicle inspected by your
Toyota dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sen- sor is scratched or dented, or
part of them h as become dis-
connected.
●Do not disassemble the sensor.
●Do not modify the sensor or sur-
rounding area on the rear
bumper.
●If a sensor or the rear bumper
needs to be removed/installed
or replaced, contact your Toyota
dealer.
●Do not paint the rear bumper
any color other t han an official
Toyota color.
Turning the Blind Spot
Monitor on/off

3075-4. Using the driving support systems
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5
Driving
*: If equipped
Multi-information display
Turning the Safe Exit Assist on/off
When the system determines that
the possibility of a collision with a
door is high, the target door is dis-
played on the multi-information dis-
play. Also, if the door is opened
when the outside r ear view mirror
indicator is illuminated, a buzzer
will sound as a warning.
Outside rear view mirror indi-
cators
When a vehicle or bicycle which
may collide with a door (other than
the back door) when opened is
detected, the outside rear view mir-
ror indicator on the detected side
will illuminate. If the door on the
detected side is open, the outside
rear view mirror indicator will blink.
■Outside rear vie w mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicator may be difficult
to see.
■Buzzer
If the volume setting of the audio
system is high or the surrounding
area is loud, it may be difficult to
hear the buzzer.
SEA (Safe Exit Assist)*
The Safe Exit Assist is a
system that uses radar sen-
sors installed on the inner
side of the rear bumper to
help occupants judge if an
approaching vehicle or
bicycle may collide with a
door to reduce the possibil-
ity of a collision.
WARNING
■Cautions regarding the use of
the system
●The driver is solely responsible
for safe driving. Always drive
safely, taking care to observe
your surroundings.
●Safe Exit Assist is a supplemen-
tary system that, when the vehi-
cle is stopped, informs
occupants of the existence of
approaching vehicles and bicy-
cles. As this system alone can-
not be used to judge safety,
over-reliance on this system
may lead to an accident result-
ing in death or serious injury.
As the system may not function
correctly under certain condi-
tions, visual confirmation of
safety with the passengers’ own
eyes and mirrors is necessary.
System components

3085-4. Using the driving support systems
Owners Manual_USA_M42C01_en
■Customization
Some functions can be customized.
(  P.574)
The Safe Exit Assist can be
enabled/disabled on of the
multi-information display.
( P.156)
When the Safe Exit Assist is off,
the driving assist information
indicator ( P.149) will illumi-
nate. At this time, “Safe Exit
Assist OFF” will be displayed on
the multi-information display.
WARNING
■To ensure the system can
operate properly
Safe Exit Assist sensors are
installed behind the left and right
sides of the rear bumper respec-
tively. Observe the following to
ensure the Safe Exit Assist can
operate correctly.
●Keep the sensors and the sur-
rounding areas on the rear
bumper clean at all times.
If a sensor or its surrounding
area on the rear bumper is dirty
or covered with snow, the Safe
Exit Assist may not operate and
a warning message will be dis-
played. In this situation, clear off
the dirt or snow and drive the
vehicle with the operation condi-
tions of the SEA function satis-
fied for appro ximately 10
minutes. If the warning mes-
sage does not disappear, have
the vehicle insp ected by your
Toyota dealer.
●Do not attach accessories,
stickers (including transparent
stickers), aluminum tape, etc.,
to a sensor or its surrounding
area on the rear bumper.
●Do not subject a sensor or its
surrounding area on the rear
bumper to a strong impact.
If a sensor is moved even
slightly off position, the system
may malfunction and vehicles
may not be detected correctly.
In the following si tuations, have
the vehicle insp ected by your
Toyota dealer.
• A sensor or its surrounding area is subject to a strong impact.
• If the surrounding area of a sen- sor is scratched or dented, or
part of them h as become dis-
connected.
●Do not disassemble the sensor.
●Do not modify the sensor or sur-
rounding area on the rear
bumper.
●If a sensor or the rear bumper
needs to be removed/installed
or replaced, contact your Toyota
dealer.
●Do not paint the rear bumper
any color other t han an official
Toyota color.
Turning the Safe Exit
Assist system on/off