2023 TOYOTA BZ4X warning light

5158-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■Electric power steering system warning light (warning
buzzer)
■Traction battery charge warning light
■Driver’s and front passenger’s seat belt reminder light (warn-
ing buzzer*)
*: Driver’s and front passenger’s seat belt warning buzzer:
The driver’s and front passenger’s seat belt warning buzzer sou nds to alert
the driver and front passenger that his or her seat belt is not fastened. If the
seat belt is unfastened, the buz zer sounds intermittently for a certain period
of time after the vehicle reaches a certain speed.
Warning lightDetails/Actions
(Red)
or
(Yellow)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the remaining charge of the traction battery is
low and charging is required
When the outside temperature is low, this light may turn on
earlier than usual to urge the driver to charge the traction
battery early.
 Charge the traction battery. ( P.98)
Warning lightDetails/Actions
Warns the driver and/or front passenger to fasten their seat
belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.

5168-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
■Rear passengers’ seat belt reminder lights (warning buzzer*)
*: Rear passengers’ seat belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert t he rear pas-
senger that his or he r seat belt is not fastened. If the seat b elt is unfas-
tened, the buzzer sounds intermittently for a certain period of time after the
vehicle reaches a certain speed.
■Tire pressure warning light
■LDA indicator (warning buzzer)
■LTA indicator (warning buzzer)
Warning lightDetails/Actions
Warns the rear passengers to fasten their seat belts
 Fasten the seat belt.
Warning lightDetails/Actions
When the light comes on after b linking for approximately 1
minute (a buzzer does not sounds):
Malfunction in the tire pressure warning system
 Have the system checked by your Toyota dealer.
When the light comes on (a buzzer sounds):
Low tire inflation pressu re from natural causes
 After the temperature of the tires has lowered suffi-
ciently, check the inflation pressure of each tire and
adjust them to the specified level.( P.513)
Low tire inflation pres sure from flat tire
 Immediately stop the vehic le in a safe place and per-
form the necessary actions ( P.519)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LDA (Lane Departure Alert).
 Follow the instructions dis played on the multi-infor-
mation display.
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in t he LTA (Lane Tracing Assist)
 Follow the instructions dis played on the multi-infor-
mation display.

5178-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■Driving assist information indicator
■Intuitive parking assist OFF indicator (warning buzzer)
■Cruise control indicator (warning buzzer)
Warning lightDetails/Actions
Indicates of the following systems is malfunctioning.
 PCS (Pre-Collis ion System)
 LDA (Lane Departure Alert)
 Follow the instructions dis played on the multi-infor-
mation display.
Indicates one of the following systems is malfunctioning or
disabled.
 PKSB (Parking Support Brake) (if equipped)
 RCD (Rear Camera Det ection) (if equipped)
 BSM (Blind Spot Monitor) (if equipped)
 SEA (Safe Exit Assist) (if equipped)
 RCTA (Rear Cross Traffic Alert) (if equipped)
 Follow the instructions dis played on the multi-infor-
mation display.
Warning lightDetails/Actions
(Flashes)
(if equipped)
Indicates a malfunction in the Intuitive parking assist func-
tion
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Indicates that the system is te mporarily unavailable, possi-
bly due to a sensor being dirt y or covered with ice, etc.
 Follow the instructions dis played on the multi-infor-
mation display.
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in t he cruise control system.
 Follow the instructions dis played on the multi-infor-
mation display.

5188-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
■Dynamic radar cruise control indicator (warning buzzer)
■PCS warning light (warning buzzer)
■Slip indicator
■Parking brake indicator
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the dynamic radar cruise control
system.
 Follow the instructions dis played on the multi-infor-
mation display.
Warning lightDetails/Actions
(Flashes or illu- minates)
Indicates a malfunction in the PCS (Pre-Collision System).
Follow the instructio ns displayed on the multi-information
display.
 Illuminates when the PCS (Pre-Collision System) or
VSC (Vehicle Stability Cont rol) system is disabled.
Warning lightDetails/Actions
Indicates a malfunction in:
The VSC system;
 The TRAC system; or
 The hill-start assist control system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Warning lightDetails/Actions
(U.S.A.)
(Flashes) or
(Canada)
(Flashes)It is possible that the parking brake is not fully engaged or
released
 Operate the parking br ake switch once again.
This light comes on when the parking brake is not released.
If the light turns of f after the parking brake is fully released,
the system is operating normally.

5198-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■Brake hold operated indicator
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
passenger is not sitting in the
seat.
●If a cushion is placed on the seat,
the sensor may n ot detect a pas-
senger, and the warning light may
not operate properly.
■SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front door), side impact sensors
(front), side impact sensors (rear),
driver’s seat position sensor,
driver’s seat belt buckle switch, front
passenger occupant classification
system sensors, “AIR BAG ON”
indicator light, “AIR BAG OFF” indi-
cator light, front passenger’s seat
belt buckle switch, seat belt preten-
sioners, airbags, interconnecting
wiring and power sources. ( P.44)
■Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficien t or the voltage
temporarily drops, the electric power
steering system warning light may
come on and the warning buzzer
may sound.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P. 5 2 7
If none of the tires are punctured:
Turn the power switch off then turn it
to ON. Check if th e tire pressure
warning light com es on or blinks.
If the tire pressure warning light
blinks for approximately 1 minute
then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your Toyota
dealer immediately.
If the tire pressur e warning light
comes on
1 After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.
2 If the warning light does not turn
off even after several minutes
have elapsed, check that the
inflation pressure of each tire is
at the specified level and perform
the tire inflation pressure setting
procedure. ( P.483)
If the warning light d oes not turn off
even after several minutes have
elapsed since performing the tire
inflation pressure setting proce-
dure, have the vehicle inspected by
your Toyota dealer as soon as pos-
sible.
■The tire pressure warning light
may come on due to natural
causes
The tire pressure warning light may
Warning lightDetails/Actions
(Flashes)
Indicates a malfunction in the brake hold system
 Have the vehicle inspecte d by your Toyota dealer
immediately.

5208-2. Steps to take in an emergency
Owners Manual_USA_M42C01_encome on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■Conditions that the tire pres-
sure warning system may not
function properly
 P. 4 7 4
WARNING
■If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death or serious injury.
■When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
When steering wheel operations
are heavier than usual, grip the
steering wheel firmly and operate
it using more force than usual.
■If the tire pressure warning
light comes on
Be sure to observe the following
precautions.
Failure to do so could cause a
loss of vehicle control and result
in death or serious injury.
●Stop your vehicle in a safe place
as soon as possible. Adjust the
tire inflation pressure immedi-
ately.
●If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Check the tires. If a tire is
flat, repair the flat tire by using
emergency tire puncture repair
kit.
●Avoid abrupt maneuvering and
braking.
If the vehicle tires deteriorate,
you could lose control of the
steering wheel or the brakes.
■If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■Maintenance of the tires
Each tire, includi ng the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire
inflation pressure label (tire and
load information label). (If your
vehicle has tires of a different size
than the size indicated on the
vehicle placard or tire inflation
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)

5218-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
WARNING
As an added safe ty feature, your
vehicle has been equipped with a
tire pressure m onitoring system
(TPMS-tire pressure warning sys-
tem) that illuminates a low tire
pressure telltale (tire pressure
warning light) when one or more
of your tires is significantly under-
inflated. Accordingly, when the
low tire pressure telltale (tire pres-
sure warning light) illuminates,
you should stop and check your
tires as soon as possible, and
inflate them to the proper pres-
sure. Driving on a significantly
under-inflated tire causes the tire
to overheat and can lead to tire
failure. Under-inflation also
reduces fuel efficiency and tire
tread life, and may affect the vehi-
cle’s handling and stopping ability.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for pro per tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reach ed the level to
trigger illumination of the TPMS
low tire pressure telltale (tire pres-
sure warning light).
Your vehicle has also been
equipped with a TPMS (tire pres-
sure warning system) malfunc-
tion indicator to indicate when the
system is not operating properly.
The TPMS (tire pressure warning
system) malfunction indicator is
combined with the low tire pres-
sure telltale (tire pressure warning
light). When the system detects a
malfunction, the te lltale will flash
for approximately one minute and
then remain continuously illumi-
nated. This sequence will con-
tinue upon subsequent vehicle
start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illuminated, the sys-
tem may not be ab le to detect or
signal low tire pressure as
intended.
TPMS (tire pressure warning sys-
tem) malfunctions may occur for a
variety of reasons, including the
installation of replacement or
alternate tires or wheels on the
vehicle that prevent the TPMS
(tire pressure warning system)
from functioning properly. Always
check the TPMS (tire pressure
warning system) malfunction tell-
tale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow
the TPMS (tire pressure warning
system) to continue to function
properly.
NOTICE
■To ensure the tire pressure
warning system operates
properly
Do not install tires with different
specifications or makers, as the
tire pressure warning system may
not operate properly.

5228-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■Warning buzzer
In some cases, the buzzer may not
be heard due to being in a noisy
location or audio sound.
■If “EV system stopped Steering
power low” is displayed
This message is displayed if the EV
system is stopped while driving. When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and
operate it using
more force than usual.
■If “EV system overheated Out-
put power reduced” is dis-
played
This message may be displayed
when driving under severe operat-
ing conditions. (For example, when
driving up a l ong steep hill.)
Handling method: P. 5 4 5
■If “Shift System Malfunction
Shifting Unavailable Drive to a
Safe Place and Stop” or “Shift
System Malfunction Driving
Unavailable” is displayed
There is a malfunc tion in the shift
control system. Have the vehicle
inspected by your Toyota dealer
immediately.
■If “Shift is in N Release acceler-
ator before shifting” is dis-
played
The accelerator pedal has been
depressed when the shift position is
in N.
Release the accelerator pedal and
shift the shift position to D or R.
■If “Press brake when vehicle is
stopped EV system may over-
heat” is displayed
The message may be displayed
when the accelerator pedal is
depressed to hold the vehicle while
the vehicle is stopped on an incline,
etc. The EV system may overheat.
Release the accelerator pedal and
depress the brake pedal.
■If “Auto Power Off To Conserve
Battery” is displayed
Power was turned off due to the
automatic power off function. Next
time when starting the EV system,
operate the EV system for approxi-
mately 5 minutes t o recharge the
12-volt battery.
If a war ning message
is displayed
The multi-information dis-
play shows warnings of
system malfunctions, incor-
rectly performed opera-
tions, and messages that
indicate a need for mainte-
nance. When a message is
shown, perform the correc-
tion procedure appropriate
to the message.
If a warning message is dis-
played again after the
appropriate actions have
been performed, contact
your Toyota dealer.
Additionally, if a warning
light comes on or flashes at
the same time that a warn-
ing message is displayed,
take the appropriate correc-
tive action for the warning
light. ( P.513)