brake sensor TOYOTA COROLLA 2021 (in English) User Guide

5188-2. Steps to take in an emergency
COROLLA_Uis closed.
■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 (ECU and sensors), “AIR
BAG ON” indicator light, “AIR BAG
OFF” indicator light, seat belt pre-
tensioners, airbags, interconnecting
wiring and power sources. ( P.32)
■Electric power steering system
warning light (warning buzzer)
When the battery charge becomes
insufficient or the voltage temporar-
ily 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 (vehicles with a
tire pressure warning system)
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P.523, 534
If none of the tires are punctured:
Turn the engine switch off then turn
it to ON. Check if the tire pressure
warning light comes on or blinks.
If the tire pressure warning light
blinks for approxi mately 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 pressure 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
initialization. ( P.481)
■The tire pressure warning light
may come on due to natural
causes (vehicles with a tire
pressure warning system)
The tire pressure warning light may
come on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this ca se, adjusting the
tire inflation pressure will turn off the
warning ligh t (after a few minutes).
■When a tire is replaced with a
spare tire (vehicles with a tire
pressure warning system)
Vehicles with a co mpact spare tire:
The compact spare tire is not
equipped with a tire pressure warn-
ing valve and tran smitter. If a tire
goes flat, the tire pressure warning
light will not turn off even though the
flat tire has been replaced with the
spare tire. Replac e the spare tire
with the repaired tire and adjust the
tire inflation pressure. The tire pres-
sure warning light will go off after a
few minutes.
■Conditions that the tire pres-
sure warning system may not
function properly (vehicles with
a tire pressure warning system)
 P.478
WA R N I N G
■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 o r serious injury.

606What to do if... (Troubleshooting)
COROLLA_U
The seat belt reminder light is
flashing
Are the driver and the passenger
wearing the seat belts? ( P.514)
 The parking brake indicator is
on
Is the parking brake released?
( P.180
, 181)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.511, 521)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 8 2 )
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors.
 Turn the engine switch to
ACC or ON, or start the
engine. (The alarm will be
deactivated or stopped after a
few seconds.)
 Is the electronic key left inside
the vehicle?
Check the message on the
multi-information display. ( P.521)
 When a warning light turns on
or a warning message is dis-
played, refer to P.511, 521.
 Vehicles with an emergency
tire puncture repair kit: Stop
the vehicle in a safe place and
repair the flat tire temporarily
with the emergency tire punc-
ture repair kit. ( P.523)
 Vehicles with a spare tire:
Stop the vehicle in a safe
place and replace the flat tire
with the spare tire. ( P.534)
 Try the procedure for when
the vehicle becomes stuck in
mud, dirt, or snow. ( P.553)
An alarm is activated and
the horn sounds (vehicles
with an alarm)
A warning buzzer sounds
when leaving the vehicle
( v e h i c l e s w i t h a s m a r t k e y
system)
A warning light turns on
or a warning message is
displayed
When a problem has
occurred
If you have a flat tire
The vehicle becomes
stuck

616Alphabetical Index
COROLLA_URear Cross Traffic Alert (RCTA)
............................................... 258
Rear seats ............................... 134 Head restraints ..................... 136
Rear side marker lights Light switch .......................... 186
Replacing light bulbs .... 496, 497
Wattage ................................ 566
Rear turn signal lights Replacing light bulbs .... 497, 498
Turn signal lever ................... 179
Wattage ................................ 566
Rear view mirror Inside rear view mirror.......... 139
Outside rear view mirrors ..... 140
Rear view monitor system ..... 263 If you notice any symptoms.. 268
Rear window defogger ... 418, 422
Receiving a call using the Blue- tooth
® hands-free system ... 381
Refueling Capacity ............................... 558
Fuel types............................. 558
Opening the fuel tank cap .... 194
Registering/Connecting a Blue- tooth
® device ........................ 298
Profiles ................................. 301
Registering a Bluetooth
® audio
player for the first time........ 301
Registering a Bluetooth
® phone
for the first time .................. 298
Replacing Electronic key battery ........... 489
Fuses ................................... 492
Light bulbs ............................ 495
Tires ..................................... 534
Wireless remote control battery........................................... 489
Reporting safety defects for U.S. owners................................... 592
Resetting the message indicat- ing maintenance is required 458 Road Sign Assist ....................250
RSA (Road Sign Assist) .........250
S
Safety Connect .........................73
Screen adjustment .
................296
Seat belt reminder light..514, 515
Seat belts...................................27 Adjusting the seat belt ............29
Automatic Locking Retractor ..29
Child restraint sys tem installation
.............................................50
Cleaning and maintaining the seat belt ..............................454
Emergency Locking Retractor 29
How to wear your seat belt .....28
How your child should wear the seat belt ................................28
Pregnant women, proper seat belt use .................................27
Reminder light and buzzer .514, 515
Seat belt extender ..................28
Seat belt pretensioners ..........30
SRS warning light .................512
Seat heaters ............................426
Seating capacity .............161, 556
Seats Adjustment ...........................133
Adjustment precautions ........133
Child seats/child restraint system installation ............................48
Cleaning ...............................454
Head restraints .....................136
Properly sitting in the seat ......25
Seat heaters ....... ..................426
Secondary Collision Brake ....272
Sensor Automatic headlight system .187
Automatic High Beam system...........................................189
BSM (Blind Spot M onitor) .....253

617Alphabetical Index
COROLLA_UInside rear view mirror.......... 140
LDA (Lane Departure Alert with
steering control) ................. 221
LTA (Lane Tracing Assist) ..... 211
Radar sensor................ 196, 255
RCTA .................................... 259
Service Connect ..................... 407
Service reminder message .... 458
Setup button (Menu screen) 285, 288
Setup screen ........................... 288
Shift lever Continuously variable transmis-sion............................. 169, 172
If the shift lever cannot be shifted from P......................... 171, 173
Manual transmission ............ 176
Shift lock system............ 171, 173
Side airbags .............................. 31
Side marker lights Light switch .......................... 186
Replacing light bulbs ............ 497
Wattage ................................ 566
Side mirrors Adjustment ........................... 140
BSM (Blind Spot Monitor)..... 253
Folding ................................. 141
RCTA function ...................... 258
Side turn signal lights Replacing light bulbs ............ 496
Turn signal lever ................... 179
Side windows ...... ................... 142
SiriusXM (SXM) ....................... 333
Smart key system Antenna location .................. 125
Entry functions ..................... 117
Starting the engine ............... 164
Snow tires ............................... 277
Spare tire ................................. 534 Inflation pressure.................. 564
Storage location ................... 535
Spark plug ............................... 561 Specifications .........................556
Speedometer .......................91, 95
Status icon ..............................286
Status icon explanation ........286
Steering lock Column lock release .....163, 165
Steering lock system warning message .............................165
Steering switch ...............349, 364 Audio switch .........................349
Talk switch ............................364
Steering wheel Adjustment ...........................138
Heated steering wheel..........426
Meter control switches..........101
Stop lights Replacing light bulbs ............496
Storage features ... ..................430
Stuck If the vehicle becomes stuck 553
Sun visors ...............................442
Sunshade Roof ......................................145
Switches Automatic High Beam system...........................................189
Brake Hold switch .................184
Display change button ......92, 97
Door lock switches ...............120
Driving mode select switch ...271
Dynamic radar cruise control switch .................................240
Dynamic radar cruise control with full-speed range switch230
Emergency flashers switch...502
Engine switch ...............163, 164
Garage door opener switches ...........................................444
Heated steering wheel switch ...........................................426
Ignition switch ...............163, 164