warning lights TOYOTA COROLLA HYBRID 2023 Owner's Guide

3807-2. Steps to take in an emergency
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.387, 398
If none of the tires are punctured:
Turn the power 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 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 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.333)
■The tire pressure warning light
may come on due to natural
causes
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 case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a
spare tire
Vehicles with a compact spare tire:
The compact spare tire is not
equipped with a tire pressure warn-
ing valve and transmitter. 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. Replace 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
 P.329
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 o r 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 assis t 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 fo rce 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.

4127-2. Steps to take in an emergency
■To prevent 12-volt battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at you r Toyota dealer.
●Some systems may require initial-
ization. (P.452)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12-volt battery termi-
nals, contact your Toyota dealer.
■Charging the 1 2-volt battery
The electricity stor ed in the 12-volt
battery will discharge gradually even
when the vehicle is not in use, due
to natural discharge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges aut omatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery (vehicles
with a smart key system)
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the
12-volt battery is discharged. Use
the wireless remote control or the
mechanical key to lock or unlock
the doors.
●The hybrid system may not start
on the first att empt after the 12-volt battery has recharged but
will start normally after the second
attempt. This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the
12-volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the
power switch was in before the
12-volt battery discharged, be
especially careful when recon-
necting the 12-volt battery.
■When replacing t
he 12-volt bat-
tery
●Use a 12-volt battery that con-
forms to European regulations.
●Use a 12-volt battery that the case
size is same as the previous one
(LN1), 20 hour rate capacity
(20HR) is equivalent (45Ah) or
greater, and per formance rating
(CCA) is equivalent (295A) or
greater.
• If the sizes differ, the 12-volt bat-
tery cannot be properly secured.
• If the 20 hour rate capacity is low,
even if the time p eriod where the
vehicle is not used is a short time,
the 12-volt battery may discharge
and the hybrid system may not be
able to start.
●For details, cons ult your Toyota
dealer.
WARNING
■When removing the 12-volt
battery terminals
Always remove the negative (-)
terminal first. If the positive (+) ter-
minal contacts any metal in the
surrounding area when the posi-
tive (+) terminal is removed, a
spark may occur, leading to a fire
in addition to ele ctrical shocks
and death or serious injury.

4478-2. Customization
8
Vehicle specifications
*: If equipped
■Moon roof* ( P.153)
*: If equipped
■Automatic light control system ( P.189)
■Lights ( P.189)
*: Except for Canada
■PCS (Pre-Collision System) ( P.207)
*1: The system is automatically enabled each time the power switch is
turned to ON.
*2: This setting changes in ac cordance with My Settings
FunctionDefault settingCustomized setting
Linked operation of com-
ponents when key is
used (open only)
Slide onlyTilt only——O
Linked operation of com-
ponents when wireless
remote control is used
Slide onlyTilt only——O
FunctionDefault settingCustomized setting
Light sensor sensitivityStandard-2 to 2O—O
Time elapsed before
headlights automatically
turn off after doors are
closed
30 seconds
Off
O—O60 seconds
90 seconds
Windshield wiper linked
headlight illuminationOnOff——O
FunctionDefault settingCustomized setting
Daytime running light
systemOnOff*O—O
FunctionCustomized setting
PCS (Pre-Collision Sys-
tem)
*1On, Off—O—
Warning timing*2Later, Default, Earlier—O—

467Alphabetical Index
Alphabetical Index
A
A/CAir conditioning filter ............. 346
Automatic air conditioning sys-tem ..................................... 278
ABS (Anti-lock Brake System) ............................................... 266Warning light ........................ 374
ACA (Active Cornering Assist) ............................................... 266
Active Cornering Assist (ACA) ............................................... 266
AHB (Automatic High Beam) . 191
Air conditioning filter ............. 346
Air conditioning system Air conditioning filter ............. 346
Automatic air conditioning sys-tem ..................................... 278
Airbags Airbag operating conditions.... 33
Airbag precautions for your child............................................. 36
Correct driving posture ........... 25
Curtain shield airbag operating conditions ............................. 34
Curtain shield airbag precautions ............................................. 36
Front passenger occupant clas- sification system ................... 41
General airbag precautions .... 36
Locations of airbags ............... 31
Modification and disposal of air- bags ..................................... 40
Side airbag operating conditions ............................................. 34
Side airbag precautions ......... 36
Side and curtain shield airbags operating conditions ............. 34
Side and curtain shield airbags precautions........................... 36
SRS airbags ........................... 31 SRS warning light .................374
Alarm Alarm ......................................88
Warning buzzer ....................372
Anchor brackets ... ..............50, 68
Antennas (smart key system)136
Anti-lock Brake System (ABS) ...............................................266Warning light.........................374
Approach warning ..................243
Armrest ......... ......................... ..299
Assist grips .............................299
Audio system-linked display107, 11 3
Automatic air conditioning sys- tem .........................................278
Automatic High Beam ............191
Automatic light control system ...............................................190
Average fuel economy ... 104, 110
Average vehicle speed ... 107, 113
B
Back-up lights Replacing light bulbs ............360
Wattage ................................428
Battery (12-volt battery) Battery checking ...................323
If the 12-volt battery is dis-charged ..............................410
Preparing and checking before winter ..................................273
Warning light.........................373
Battery (traction battery)..........82
Blind Spot Monitor (BSM) ......249
Bottle holders .........................289
Brake Brake hold ............................187
Fluid..............................322, 425
Parking brake .......................183
Regenerative braking .............78
Warning light.........................372

470Alphabetical Index
How to start the hybrid system................................... 170, 172
Identification number ............ 421
If the hybrid sy stem will not start
........................................... 406
If your vehicle has to be stopped in an emergency................. 363
Ignition switch (power switch) ................................... 170, 172
Overheating.......................... 414
Power switch ................ 170, 172
Tachometer ............................ 96
Engine coolant Capacity ............................... 423
Checking .............................. 320
Preparing and c hecking before
winter.................................. 273
Engine coolant temperature gauge................................. 96, 99
Engine oil Capacity ............................... 422
Checking .............................. 318
Preparing and c hecking before
winter.................................. 273
Warning light ........................ 373
Engine switch (power switch) ....................................... 170, 172If your vehicle has to be stopped in an emergency................. 363
Enhanced VSC ........................ 266
EPS (Electric Power Steering) ............................................... 266Warning light ........................ 375
EV drive mode ........................ 178
EV Driving Ratio ............. 106, 112
EV indicator .............................. 78
EV Ratio .......................... 106, 112
Event data recorder (EDR)......... 8F
Flat tire Tire pressure w arning system
...........................................328
Vehicles with a spare tire......398
Vehicles with an emergency tire puncture repair ki t...............387
Floor mats .................................24
Fluid Brake ....................................425
Hybrid transmission ..............424
Washer .................................324
Front passenger occupant clas- sification system ....................41
Front seats Adjustment ...........................141
Cleaning ...............................305
Correct driving posture ...........25
Head restraints .....................144
Seat heaters ....... ..................284
Front side marker lights Light switch...........................189
Wattage ................................428
Front turn signal lights Replacing light bulbs ............357
Turn signal lever ...................182
Fuel Capacity ...............................421
Fuel gauge .......................96, 99
Information ......... ..................429
Refueling ..............................196
Type......................................421
Warning light.........................375
Fuel consumption Average fuel economy .. 104, 110
Current fuel consumption ...104, 11 0
Fuel economy ................. 104, 110
Fuel filler door Refueling ..............................196
Fuel gauge...........................96, 99

471Alphabetical Index
Fuses ....................................... 354
G
Gauges ................................ 96, 99
Glove box ................................ 289
Glove box light ....................... 289
H
Head restraints ....................... 144
HeadlightsAHB (Automatic High Beam) 191
Light switch .......................... 189
Headlights/daytime running lightsReplacing light bulbs ............ 357
Heated steering wheel ........... 284
Heaters Automatic air conditioning sys-tem ..................................... 278
Heated steering wheel ......... 284
Outside rear view mirrors ..... 280
Seat heaters ......................... 284
High mounted stoplight Replacing light bulbs ............ 357
High-voltage components ....... 82
Hill-start assist control .......... 266
Hood Open .................................... 316
Hooks Coat hooks ........................... 299
Retaining hooks (floor mat) .... 24
Horn ......................................... 146
Hybrid battery (tr action battery)
Location.................................. 82
Specification ......................... 422
Warning message .................. 86
Hybrid battery (traction battery) air intake vent ....................... 347
Hybrid battery (traction battery) air vents .................................. 85 Hybrid system ....
.......................77
Emergency shut off system ....86
Energy monitor/consumption screen................................. 116
EV drive mode ......................178
High voltage components .......82
Hybrid system precautions .....82
If the hybrid sys tem will not start
...........................................406
Overheating ..........................415
Power (ignition) switch .170, 172
Predictive efficient drive .........80
Regenerative braking .............78
Starting the hybrid system ..170, 172
Hybrid System Indicator ........104
Hybrid transmissio n ...............180
Hybrid vehicle dri ving tips.....271
I
I/M test .....................................312
Identification
Engine ..................................421
Vehicle ..................................420
Ignition switch (power switch) .......................................170, 172Auto power off fun ction .........176
Changing the power switch modes.................................176
If your vehicle has to be stopped in an emergency .................363
Illuminated entry system .......287
Immobilizer system ..................87
Indicators ..................................94
Initialization Items to initialize ...................452
Maintenance .........................309
Power windows ....................150
Inside rear view m irror ...........147
Instrument panel light control98, 101

472Alphabetical Index
Interior lights .......................... 286Front interior light ................. 286
Rear interior light .................. 286
Wattage ................................ 428
J
JackPositioning a floor jack ......... 317
Vehicle-equipped jack .. 388, 399
Jack handle ..................... 388, 399
Jam protection function Moon roof ............................. 153
Power windows .................... 150
K
Keyless entrySmart key system................. 136
Wireless remote control ....... 124
Keys Battery-saving function......... 137
Electronic key ....................... 122
If the electronic key does not operate properly ................. 408
If you lose your keys ............ 407
Key number plate ................. 122
Keyless entry................ 127, 136
Mechanical key .................... 122
Power switch ................ 170, 172
Replacing the battery ........... 350
Warning buzzer .................... 136
Wireless remote control ....... 124
Knee airbags ............................. 31
L
Lane Departure A lert (LDA) ... 223
Lane Tracing Assist (LTA)...... 218 Operation ............................. 218
Language (multi-information dis- play) ............................... 108, 114
LATCH anchors ........................ 64 LDA (Lane Departure Alert) ...223
Operation..............................223
LED accent lights Light switch...........................189
Replacing light bulbs ............357
Lever Auxiliary catch lever .............316
Hood lock release lever ........316
Internal trunk rele ase lever ...135
Shift lever .............................180
Turn signal lever ...................182
Wiper lever ...........................194
License plate lights Light switch...........................189
Replacing light bulbs ............357
Wattage ................................428
Light bulbs Replacing .............................356
Lights AHB (Automatic High Beam) 191
Front interior lights................286
Headlight switch ...................189
Interior lights .........................286
Interior lights list ...................286
Personal lights ......................287
Rear interior lights ................286
Replacing light bulbs ............357
Trunk light .............................135
Turn signal lever ...................182
Vanity lights ..........................298
Wattage ................................428
Lock steering column ............170
LTA (Lane Tracing Assist) ......218 Operation..............................218
LTA (Lane Tracing Assist) switch ...............................................221
M
Maintenance Do-it-yourself maintenance ..314
General maintenance ...........310
Maintenance data .................420

473Alphabetical Index
Maintenance requirements... 308
Malfunction indicator lamp.... 373
Menu icons ..................... 102, 109
Meter Clock ................................ 96, 99
Indicators................................ 94
Instrument panel light control98, 101
Meter control switches . 103, 110
Meter light control ................. 101
Meters .............................. 96, 99
Multi-information display .... 102, 109
Settings ........................ 108, 114
Warning lights....................... 372
Warning message ................ 382
Mirrors Inside rear view mirror.......... 147
Outside rear view mirror defog-gers .................................... 280
Outside rear view mirrors ..... 148
Vanity mirrors ....................... 298
Moon roof Door lock linked moon roof oper-ation ................................... 153
Jam protection function ........ 153
Operation ............................. 153
Multi-information display Audio system-linked display107, 11 3
Clock .............................. 98, 102
Cruise control ....................... 245
Driving informatio n display . 103,
11 0
Driving support system informa- tion display ................. 107, 113
Dynamic radar cruise control 239
ECO Accelerator Guidance 104, 111
Eco score ..................... 104, 111
Energy monitor ..................... 116
EV Driving Ratio ........... 106, 112 EV Ratio ....................... 106, 112
Fuel economy ............... 104, 110
Hybrid System Indicator .......104
Menu icons ...................102, 109
Meter control switches.. 103, 110
Navigation system-linked display
................................... 107, 113
Settings ........................ 108, 114
Tire pressure ...... ..................328
Vehicle information display .107, 11 3
Warning message.................382
N
Navigation system-linked display ....................................... 107, 113
Noise from under ve hicle...........5
O
Odometer...........................97, 101
Odometer and trip meter display
Display change button ....97, 101
Display items ..................98, 101
Oil Engine oil..............................422
Rear differential oil................424
Open tray .................................290
Opener Fuel filler door.......................196
Hood .....................................316
Trunk ....................................134
Outside rear view mirrors Adjustment ...........................148
BSM (Blind Spot M onitor) .....249
Folding..................................149
Outside rear view mirror defog- gers ....................................280
RCTA function.......................254
Safe Exit Assist.....................260
Outside temperatur e ..........96, 99
Overheating.............................414

474Alphabetical Index
P
Panic mode ............................. 124
Parking brakeOperation ............................. 183
Parking brake engaged warning buzzer ................................ 185
Warning light ........................ 379
Warning message ................ 185
Parking lights Light switch .......................... 189
Replacing light bulbs ............ 357
PCS (Pre-Collision System)... 207 Function ............................... 208
Warning light ........................ 377
PDA (Proactive driving assist) [PDA (Proactive driving assist)]............................................... 228
Personal lights ....................... 286 Wattage ................................ 428
Power control unit .................... 82
Power control unit coolant Capacity ............................... 423
Checking .............................. 320
Preparing and c hecking before
winter.................................. 273
Power outlet ............................ 292
Power steering (Electric power steering system)................... 266Warning light ........................ 375
Power switch .................. 170, 172 Auto power off function ........ 176
Changing the power switch modes ................................ 176
Power switch ( engine switch)
If your vehicle has to be stopped in an emergency................. 363
Power windows Door lock linked window opera-tion ..................................... 151
Jam protection function ........ 150
Operation ............................. 150 Window lock switch ..............152
Pre-Collision System (PCS) ...207 Function................................208
Warning light.........................377
Predictive efficient drive .........80
R
Radiator ...................................321
RCTA Function................................254
RCTA function .........................255
Rear Cross Traffic Alert (RCTA) ...............................................254
Rear seats ...............................142 Head restraints .....................144
Rear side marker lights Light switch...........................189
Replacing light bulbs ............357
Wattage ................................428
Rear turn signal lights Replacing light bulbs ....357, 358
Turn signal lever ...................182
Wattage ................................428
Rear view mirror Inside rear view mirror ..........147
Outside rear view mirrors .....148
Rear window defogger ...........280
Refueling Capacity ...............................421
Fuel types .............................421
Opening the fuel tank cap ....196
Regenerative braking ...............78
Replacing Electronic key battery ...........350
Fuses....................................354
Light bulbs ............................356
Tires......................................398
Wireless remote control battery...........................................350
Reporting safety defects for Canadian owners ..................454

475Alphabetical Index
Reporting safety defects for U.S. owners................................... 454
Resetting the message indicat- ing maintenance is required 309
Road Sign Assist (RSA) ......... 234
RSA (Road Sign Assist) ......... 234
S
Safe Exit Assist ...................... 260
Safety Connect ......................... 72
Seat belt reminder light . 375, 376
Seat belts .................................. 27 Adjusting the seat belt ............ 29
Automatic Locking Retractor .. 29
Child restraint system installation ............................................. 50
Cleaning and maintaining the seat belt.............................. 305
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 . 375, 376
Seat belt extender .................. 28
Seat belt pretensioners .......... 30
SRS warning light................. 374
Seat heaters ............................ 284
Seating capacity ............. 168, 420
Seats Adjustment ........................... 141
Adjustment precautions........ 141
Child seats/child restraint system installation ............................ 48
Cleaning ............................... 305
Head restraints ..................... 144
Properly sitting in the seat ...... 25
Seat heaters ......................... 284
Secondary Collision Brake .... 267 Sensor
AHB (Automatic High Beam) 191
Automatic headlight system .190
BSM (Blind Spot M onitor) .....249
Radar sensor ................250, 261
RCTA ....................................255
Service plug ..............................82
Service reminder message ....309
Shift lever Hybrid transmission ..............180
If th e s hif t le ver ca n no t b e s hif te d from P .................................181
Shift lock system ....................181
Side airbags ..............................31
Side marker lights Light switch...........................189
Replacing light bulbs ............357
Wattage ................................428
Side mirrors Adjustment ...........................148
BSM (Blind Spot M onitor) .....249
Folding..................................149
RCTA function.......................254
Side turn signal lights Replacing light bulbs ............357
Turn signal lever ...................182
Side windows ..........................150
Smart key system Antenna location...................136
Entry functions......................127
Starting the hybrid system ....172
Snow tires ...............................273
Spare tire .................................398 Inflation pressure ..................426
Storage location ...................399
Spark plug ...............................424
Specifications .........................420
Speedometer .......................96, 99
Steering lock Column lock releas e .............170