2020 TOYOTA COROLLA overheating

2534-5. Using the driving support systems
COROLLA_U
4
Driving
■Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may be generated from
the brake system, but this is not a
malfunction.
■EPS operation sound
When the steering wheel is oper-
ated, a motor sound (whirring
sound) may be heard. This does not
indicate a malfunction.
■Automatic reacti vation of TRAC
and VSC systems
After turning the TRAC and VSC
systems off, the systems will be
automatically re-enabled in the fol-
lowing situations:
●When the engine switch is turned
off
●If only the TRAC system is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned off, automatic
re-enabling will not occur when
vehicle speed increases.
■Operating conditions of Active
Cornering Assist
The system operates when the fol-
lowing occurs.
●TRAC/VSC can operate
●The driver is at tempting to accel-
erate while turning
●The system detects that the vehi-
cle is drifting to the outer side
●The brake pedal is released
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem 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 engine off. The EPS syste
m should return
to normal within 10 minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor detects a collision
while the vehicle is in motion.
However, the system does not oper-
ate in any of the following situations.
●The vehicle speed is below 6 mph
(10 km/h)
●Components are damaged
■Secondary Collision Brake
automatic cancellation
The system is automatically can-
celed in any of the following situa-
tions.
●The vehicle speed drops below
approximately 6 mph (10 km/h)
●A certain amount of 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 vehicle in front of
you, especially in the following sit-
uations:
●When driving on dirt, gravel or
snow-covered roads

3976-1. Using the air conditioning system and defogger
COROLLA_U
6
Interior features
■Heated steering wheel
Turns heated steering wheel
on/off
When the heated steering wheel is
on, the indicator illuminates on the
heated steering wheel switch.
■Seat heaters
Front
Turns seat heaters on/off
1 High temperature
2 Low temperature
When the seat heater is on, the
indicator illuminates on the seat
heater switch.
When not in use, put the switch in
the neutral position. The indicator
will turn off.
Rear
Turns seat heaters on/off
When the seat heater is on, the
indicator illuminates on the seat
heater switch.
■The heated steering wheel and
seat heaters can be used when
The engine switch is in ON.
Operation instructions
WARNING
■To prevent overheating and
minor burn injuries
Observe the following precautions
when using the seat heaters.
●Do not cover the seat with a
blanket or cushion when using
the seat heater.
●Do not use seat heater more
than necessary.

5731-1. What to do if... (Troubleshooting)
COROLLA_U573Alphabetical Index
Types of child restraint system installation method ............... 48
Using an anchor bracket ........ 58
Child safety Airbag precautions ................. 34
Battery precautions ...... 443, 519
Child restraint system............. 48
Heated steering wheel and seat heater precautions ............. 396
How your child should wear the seat belt................................ 26
Moon roof precautions ......... 131
Power window lock switch.... 129
Power window precautions .. 128
Rear door child-protectors.... 107
Removed electronic key battery precautions......................... 460
Seat belt extender precautions ............................................. 26
Seat belt precautions ............. 45
Trunk precautions................. 108
Child-protectors ..................... 107
Cleaning Aluminum wheels ................. 422
Exterior ................................. 422
Interior .................................. 424
Radar sensor........................ 181
Seat belts ............................. 424
Clock ............... 77, 79, 81, 84, 297
Coat hooks .............................. 413
Command list ......................... 339
Condenser .............................. 440
Console box ............................ 402
Consumption screen................ 92
Continuously variable transmis- sion ................................ 153, 155If the shift lever cannot be shifted from P......................... 154, 157
M mode ................................ 158
Paddle shift switches.... 157, 158
Cooling system ...................... 440 Engine overheating .............. 519 Cruise control
Dynamic radar cruise control 223
Dynamic radar cruise control with full-speed range ..........213
Cup holders.............................401
Current fuel consumption........88
Curtain shield airbags ..............29
Customizable features ...........548
D
Daytime running light system170
DCM .................................377, 378
Defogger Outside rear view mirrors ...388, 392
Rear window.................388, 392
Windshield ....................387, 392
Dimensions .............................524
Dinghy towing .........................146
Display Dynamic radar cruise control 223
Dynamic radar cruise control with full-speed range ..........213
LDA (Lane Departure Alert with steering control)..................210
LTA (Lane-Tracing Assist) .....201
Multi-information display.........86
Warning message.................490
Display change button .......78, 83
Do-it-yourself maintenance ...428
Door lock Doors ....................................103
Key .......................................104
Smart key system ................. 111
Wireless remote control..........98
Doors Automatic door locking and unlocking system ................107
Door glasses ........................127
Door lock ..............................103
Open door warning buzzer .105, 107

574Alphabetical Index
COROLLA_U
Outside rear view mirrors ..... 125
Rear door child-protectors.... 107
Side doors ............................ 103
Drive distance ........................... 90
Drive information ..................... 90
Drive-start control .................. 136
Driving Break-in tips ......................... 136
Correct driving posture ........... 23
Driving mode select switch... 249
Procedures ........................... 134
Winter drive tips ................... 255
Driving information display ..... 87
Driving range ............................ 88
Driving support system informa- tion display ............................. 89
Dynamic radar cruise control 223 Warning message ................ 231
Dynamic radar cruise control with full-speed range ........... 213Warning message ................ 222
E
Eco Driving Indicator ............... 88
Eco Driving Indicator Light ..... 88
EDR (Event data recorder)......... 8
Elapsed time ............................. 90
Electric Power Steering (EPS) ............................................... 251Warning light ........................ 484
Electronic key ........................... 96 Battery-saving function......... 112
If the electronic key does not operate properly ................. 513
Replacing the battery ........... 458
Emergency flashers ............... 472
Emergency tire puncture repair kit ........................................... 493
Emergency, in case of If a warning buzzer sounds .. 481
If a warning light turns on ..... 481 If a warning message is dis-
played .................................490
If the battery is discharged ...515
If the electronic key does not operate properly .................513
If the engine will not start...... 511
If the vehicle is trapped in rising water...................................474
If you have a flat tire .....493, 503
If you lose your keys.............513
If you think something is wrong ...........................................479
If your vehicle becomes stuck ...........................................521
If your vehicle has to be stopped in an emergency .................472
If your vehicle ne eds to be towed
...........................................475
If your vehicle overheats ......519
Enform App Suite button (Setup screen) ...................................266
Engine ACCESSORY mode .............151
Compartment........................436
Engine switch ...............147, 148
Fuel pump shut off system ...480
Hood .....................................434
How to start the engine 147, 148
Identification number ............525
If the engine will not start...... 511
If your vehicle has to be stopped in an emergency .................472
Ignition switch (engine switch) ...................................147, 148
Overheating ..........................519
Tachometer.......................77, 81
Engine coolant Capacity ...............................528
Checking ..............................440
Preparing and checking before winter ..................................255

5791-1. What to do if... (Troubleshooting)
COROLLA_U579Alphabetical Index
Overheating ............................ 519
P
Paddle shift switches ..... 157, 158
Panic mode ............................... 99
Parking brake Operation ..................... 163, 164
Parking brake engaged warning buzzer ........................ 163, 166
Warning light ........................ 486
Warning message ........ 163, 166
Parking lights Light switch .......................... 170
Replacing light bulbs ............ 465
Wattage ................................ 533
PCS (Pre-Collision System) Function ............................... 187
Warning light ........................ 486
Personal lights ....................... 398 Wattage ................................ 533
Phone ...................................... 345 About the contacts in the contact list ....................................... 349
Phone screen operation ....... 345
Registering/Connecting a Blue- tooth
® phone ...................... 347
Some basics......................... 346
Troubleshooting.................... 369
Voice command system ....... 349
When selling or disposing of the vehicle ................................ 349
Phone button .......................... 345
Phone button (Menu screen) . 263
Phone button (Setup screen) 266
Phone settings ....................... 360 Contacts/Call history settings362
Message settings ................. 368
Notifications settings ............ 361
Sounds settings.................... 360
Placing a call using the Blue- tooth
® hands-free system ... 350
By call history ....................... 350 By contacts list .....................351
By favorites list .....................350
By home screen ...................352
By keypad.............................352
Power outlet ............................405
Power steering (Electric power steering system) ...................251Warning light.........................484
POWER VOLUME knob ..........303
Power windows Door lock linked window opera-tion......................................128
Jam protection function ........127
Operation..............................127
Window lock switch ..............129
Pre-Collision System (PCS) Function................................187
Warning light.........................486
R
Radar cruise control...............223
Radar cruise control (dynamic radar cruise control with
full-speed range)...................213
Radiator ...................................440
Radio........................................307 Presetting a station ...............307
Radio broadcast data system308
Rear seats ............................... 119 Head restraints .....................121
Rear side marker lights Light switch...........................170
Replacing light bulbs ....465, 466
Wattage ................................533
Rear turn signal lights Replacing light bulbs ....466, 467
Turn signal lever ...................162
Wattage ................................533
Rear view mirror Inside rear view mirror ..........124
Outside rear view mirrors .....125