brake sensor TOYOTA BZ4X 2023 Owner's Manual

3885-4. Using the driving support systems
Owners Manual_USA_M42C01_en
■The Secondary Collision
Brake
When the SRS airbag sensor
detects a collision and the sys-
tem operates, the brakes and
brake lights are automatically
controlled to reduce the vehicle
speed and help reduce the pos-
sibility of further damage due to
a secondary collision.
■When the
TRAC/VSC/ABS/Trailer Sway
Control systems are operating
The slip indicator light will flash
while the TRAC/VSC/ABS/Trailer
Sway Control systems are operat-
ing.
■Disabling the TRAC system
If the vehicle gets stuck in mud, dirt
or snow, the TRAC system may
reduce power from the EV system to
the wheels.
Pressing to turn the system off
may make it easier for you to rock
the vehicle in order to free it.
To turn the TRAC system off, quickly
press and release .
The “Traction Control Turned OFF”
will be shown on the multi-informa-
tion display.
Press again to t urn the system
back on.
■Turning off both TRAC, VSC
and Trailer Sway Control sys-
tems
To turn the TRAC/VSC/Trailer Sway
Control systems off, press and hold for more than 3 seconds while
the vehicle is stopped.
The VSC OFF indicator light will
come on and the “Traction Control
Turned OFF” will be shown on the
multi-information display.
*
Press again to turn the systems
back on.
*: PCS (Pre-Collision System) will also be disabled (only pre-collision
warning is available). The PCS
warning light will come on and a
message will be disp layed on the
multi-information display.
(  P.270)
■When the message is dis-
played on the multi-information
display showing that TRAC has
been disabled even if has
not been pressed
TRAC is temporary deactivated. If
the information continues to show,
contact your Toyota dealer.
■Operating conditions of hill-
start assist control
When all of the fo llowing conditions
are met, the hill-star t assist control
will operate:
●The shift position is in a position
other than P or N (when starting
off forward/backward on an

3905-4. Using the driving support systems
Owners Manual_USA_M42C01_entem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period of time. The steer-
ing wheel may feel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the EV
system off. The E
PS system should
return to normal wit hin 10 minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion. How-
ever, the system does not operate
when the components are dam-
aged.
■Secondary Collision Brake
automatic cancellation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed drops to
approximately 0 mph (0 km/h)
●A certain amount o f time elapses
during operation
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the veh icle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where stability and power
may be lost.
■Active Cornering Assist does
not operate effectively when
●Do not overly rely on Active
Cornering Assist. Active Corner-
ing Assist may not operate
effectively when accelerating
down slopes or driving on slip-
pery road surfaces.
●When Active Corn ering Assist
frequently operates, Active Cor-
nering Assist may temporarily
stop operating to ensure proper
operation of the brakes, TRAC
and VSC.
■Hill-start assist control does
not operate effectively when
●Do not overly rely on hill-start
assist control. Hill-start assist
control may not operate effec-
tively on steep inclines and
roads covered with ice.

4497-1. Maintenance and care
Owners Manual_USA_M42C01_en
7
Maintenance and care
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
buzzer may sound outside the
vehicle and “Key Detected In
Vehicle” may be shown on the
multi-information display. To turn
off the alarm, lock all the doors.
■Wheels and wheel ornaments
●Remove any dirt immediately by
using a neutral detergent.
●Wash detergent off with water
immediately after use.
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidi c, alkaline or
abrasive detergent
• Do not use hard brushes
• Do not use det ergent on the
wheels when they are hot, such
as after driving or parking in hot
weather
■Painted brake calipers (if
equipped)
●When using detergent, use neu-
tral detergent. Do not use hard
brushes or abrasive cleaners, as
they will damage the paint.
●Do not use detergent on the brake
calipers when th ey are hot.
●Wash detergent off immediately
after use.
■Brake pads and calipers
Rust may form if the vehicle is
parked with wet brake pads or disc
rotors, causing them to stick. Before
parking the vehicle after it is
washed, drive slow ly and apply the
brakes several times to dry the
parts.
■Bumpers
Do not scrub with abrasive cleaners.
■Plated portions
If dirt cannot be removed, clean the
parts as follows:
●Use a soft cloth dampened with an approximately 5% solution of neu-
tral detergent and water to clean
the dirt off.
●Wipe the surface with a dry, soft
cloth to remove any remaining
moisture.
●To remove oily deposits, use alco-
hol wet wipes or a similar product.
WARNING
■When washing the vehicle
Do not apply water to the inside of
the motor compartment. Doing so
may cause the electrical compo-
nents, etc. to catch fire.
■When cleaning the windshield
(vehicles with rain-sensing
windshield wipers)
Set the wiper switch to off.
If the wiper switch is in “AUTO”,
the wipers may operate unexpect-
edly in the following situations,
and may result in hands being
caught or other serious injuries
and cause damage to the wiper
blades.
Off
“AUTO”
●When the upper part of the
windshield where the raindrop
sensor is located is touched by
hand
●When a wet rag or similar is
held close to the raindrop sen-
sor

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.

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.

5258-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• The temperature of the radar sen- sor is outside of the operating
range. Wait for the temperature to
become appropriate.
■If “System Stopped Front Radar
In Self Calibration See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collis ion System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.261)
• The radar sensor may be mis- aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.
■If “Cruise Control Unavailable
See Owner’s Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist s witch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If a message that indicates the
need for visiting your Toyota
dealer is displayed
The system or part shown on the
multi-information di splay is malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer immediately.
■If a message that indicates the
need for the rotary shifter oper-
ation is displayed
To prevent the rota ry shifter from
being operated incorrectly or the
vehicle from moving unexpectedly, a
message that requires shifting the
shift position may be displayed on
the multi-informatio n display. In that
case, follow the in struction of the
message and shift the shift position.
■If a message that indicates the
need for referring to Owner’s
Manual is displayed
●If any of the following messages
are shown on the multi-informa-
tion display, follow the instruc-
tions.
• “Battery Low” ( P.541)
• “Check Charging System Close Charging Port Lid” ( P.140)
• “Charging system malfunction”
( P.140)
• “Charging stopped High energy use” ( P.140)
●If any of the following messages
are shown on the multi-informa-
tion display, it may indicate a mal-
function. Have the vehicle
inspected by your Toyota dealer
immediately.
• “Entry & Start System Malfunction”
• “Traction battery system malfunc- tion”
• “Accelerator system malfunction”
• “Plug-in Charging System Mal- function”
• “EV system malfunction”
• “Shift System Mal function Apply
Parking Brake Securely When
Parking See Owner’s Manual”
• “Shift System M alfunction See
Owner’s Manual”
• “Shift System Malfunction Stop in

Owners Manual_USA_M42C01_en
595What to do if... (Troubleshooting)
Is the 12-volt battery dis-
charged? ( P.541)
 Is the window lock switch
pressed?
The power window except for
the one at the driver’s seat
cannot be operated if the win-
dow lock switch is pressed.
( P.214)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the EV
system is not operating) for a
period of time. ( P.235)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? ( P. 5 1 5
,
516)
 The parking brake indicator is
on
Is the parking brake released?
( P.245)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.513, 522)
Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the
alarm sounds. ( P.69)
To stop the alarm, turn the power
switch to ON or start the EV sys-
tem.
Is the message displayed on
the multi-information display?
Check the message on the
multi-information display.
( P.522)
 When a warning light turns on
or a warning message is dis-
played, refer to P.513, 522.
 Stop the vehicle in a safe
place and replace the flat tire
with the spare tire. ( P.527)
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (if
equipped)
A warning buzzer sounds
when leaving the vehicle
A warning light turns on
or a warning message is
displayed
When a problem has
occurred
If you have a flat tire

Owners Manual_USA_M42C01_en
Alphabetical Index599
Charging ......................... 105, 113AC charging ......................... 105
AC charging cable .................. 87
Charging components ............ 85
Charging indicator .................. 90
Charging methods .................. 98
Charging procedure ..... 105, 113
Charging schedule function.. 118
Charging time may increase 104
Charging tips ........................ 100
DC charging ......................... 113
Display . 101, 121, 129, 131, 140
Information related to charging display 101, 121 , 129, 131, 140
Locking and unlocking the AC charging connector............... 93
My Room Mode .................... 129
Opening and closing the charging port lid s .................. 85
Power sources precautions .... 97
Power sources th at can be used
............................................. 96
Safety functions.............. 89, 102
Things to know before charging ........................................... 102
Warning messages............... 140
When AC charging cannot be performed ........................... 133
When charging schedule func- tion cannot be performed ... 138
When DC charging cannot be performed ........................... 135
Charging equipment ................ 85
Charging methods.................... 98 AC charging ......................... 105
DC charging ......................... 113
Charging ports Charging port lid ..................... 85
Locking and unlocking the AC charging connector............... 93
Opening and closing .............. 85
Charging schedule function .. 118 Setting ..................................121
Charging tips ..........................100
Charging-linked functions My Room Mode ......................98
Traction battery cooler ............99
Traction battery heater ...........99
Traction battery warming control.............................................99
Child restraint system ..............50 Fixed with a LATCH system ...59
Fixed with a seat belt..............54
Front passenger occupant clas-sification system ...................44
Points to remember ................50
Riding with children ................49
Types of child restraint system installation method ...............52
Using an anchor bracket ........61
Child safety ...............................49 12-volt battery precautions ...544
Airbag precautions .................39
Back door precautions..........172
Child restraint system .............52
Electronic sunshade .............427
How your child should wear the seat belt ................................30
Power window lock switch ....214
Power window precautions...213
Rear door child-protectors ....171
Seat belt extender precautions .............................................30
Seat belt precautions........29, 49
Child-protector........................171
Cleaning ..........................448, 451 Aluminum wheels .................449
Brake calipers.......................449
Digital Rear-view Mirror ........206
Exterior .................................448
Interior ..................................451
Radar sensor ........................261
Seat belts .............................451
Clock ................................152, 154

Owners Manual_USA_M42C01_en
Alphabetical Index607
ReplacingElectronic key battery ........... 497
Fuses ................................... 499
Light bulbs ............................ 502
Tires ..................................... 485
Replacing the tire ................... 485
Reporting safety defects for Canadian owners ................. 581
Reporting safety defects for U.S. owners................................... 580
Road Sign Assist (RSA) ......... 286
Roof luggage carri er .............. 225
RSA (Road Sign Assist) ......... 286
S
Safe Exit Assist (SEA) Enabling/disabling the system........................................... 308
Safety Connect ......................... 64
SEA (Safe Exit Assist) ............ 307 Enabling/disabling the system........................................... 308
Seat belt reminder light . 515, 516
Seat belts .................................. 29 Adjusting the seat belt shoulder anchor height ....................... 31
Automatic Locking Retractor (ALR) .................................... 31
Child restraint system installation ............................................. 54
Cleaning and maintaining the seat belt.............................. 451
Emergency Locking Retractor (ELR) .................................... 31
How to wear your seat belt..... 30
How your child should wear the seat belt................................ 30
Pregnant women, proper seat belt use................................. 29
Reminder light and buzzer . 515, 516
Seat belt extender .................. 30 Seat belt instructions for Cana-
dian owners ........................581
Seat belt pretensioners ..........32
SRS warning light .................514
Seat heaters ............................ 411
Seat ventilators .. ..................... 411
Seating capacity .............228, 550
Seats ................................192, 193 Adjustment ...................192, 193
Adjustment precautions ........193
Child seats/child restraint system installation ............................50
Cleaning ...............................451
Folding down the rear seatbacks ...........................................194
Head restraints .....................196
Properly sitting in the seat ......27
Seat heaters ......................... 411
Seat ventilators..................... 411
Secondary Collision Brake ....388
Sécurité de l’enfant Précautions avec les coussins gonflables ...........................585
Sensor Automatic headlight system .248
Automatic High Beam (AHB) 250
BSM (Blind Spot Monitor) ...303, 308
Digital Rear-view Mirror ........205
Dynamic radar cruise control 260
Inside rear view mirror ..........201
Intuitive parking assist .......... 311
LDA (Lane Departure Alert) ..281
LTA (Lane Tracing Assist) .....276
Moving Vehicle Rear of the Vehi- cle ...............................303, 308
Parking Support Brake function (static objects) .................... 311
PCS (Pre-Collisio n System) .260
Radar sensor ........................260
Rain-sensing windshield wipers ...........................................255