engine overheat TOYOTA COROLLA 2021 Owners Manual (in English)

5TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
COROLLA_U
7-2. Maintenance Maintenance requirements......................................... 457
General maintenance ......... 458
Emission inspection and mainte- nance (I/M) programs....... 461
7-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ................................. 462
Hood .................................. 464
Positioning a floor jack ....... 465
Engine compartment .......... 466
Tires ................................... 475
Tire inflation pressure......... 484
Wheels ............................... 486
Air conditioning filter ........... 487
Wireless remote control/elec- tronic key battery.............. 489
Checking and replacing fuses ......................................... 492
Light bulbs .......................... 495
8-1. Essential information Emergency flashers ........... 502
If your vehicle has to be stopped in an emergency .............. 502
If the vehicle is trapped in rising water ................................ 504
8-2. Steps to take in an emergency If your vehicle needs to be towed......................................... 505
If you think something is wrong ......................................... 509
Fuel pump shut off system ......................................... 510
If a warning light turns on or a warning buzzer sounds .... 511
If a warning message is dis- played .............................. 521If you have a flat tire (vehicles
without spare tire) ............ 523
If you have a flat tire (vehicles with a spare tire) .............. 534
If the engine will not start ... 542
If you lose your keys .......... 544
If the electronic key does not operate properly............... 544
If the vehicle battery is dis- charged ............................ 546
If your vehicle overheats .... 550
If the vehicle becomes stuck ......................................... 553
9-1. Specifications Maintenance data (fuel, oil level, etc.) .................................. 556
Fuel information ................. 568
Tire information .................. 570
9-2. Customization Customizable features ....... 581
9-3. Initialization Items to initialize ................ 589
10-1. For owners Reporting safety defects for U.S. owners ............................. 592
Seat belt instructions for Cana- dian owners (in French) ... 592
SRS airbag instructions for Canadian owners (in French)........ ................................. 59

4
8When trouble arises
9Vehicle specifications
10For owners

14Pictorial index
COROLLA_UFuel filler door ...............................................
..................... P.194
Refueling method ............................................... .................. P.195
Fuel type/fuel tan k capacity ................................... .............. P.558
Tires.......................................................... ........................... P.475
Tire size/inflation pressure ................................... ................ P.564
Winter tires/tire chains ....................................... .................. P.277
Checking/rotation/tire pressure warning system
*2............... P.475
Coping with flat tires......................................... ............ P.523, 534
Hood ........................................................... ......................... P.464
Opening ............................................................................... P.464
Engine oil ..................................................... ........................ P.558
Coping with overheating ...................................................... P.550
Headlights/daytime running lights .............................. ..... P.186
Turn signal lights/parking lights .............................. ......... P.186
Parking lights
*2............................................................... .... P.186
Front side marker lights ....................................... ............. P.186
LED accent lights
*2............................................................ P.1 86
Stop lights/tail lights/rear side marker lights/turn signal lig hts
P. 1 8 6
License plate lights........................................... ................. P.186
Tail lights
*2............................................................... ........... P.186
Back-up lights
Shifting the shift position to R .............................. P .169, 172, 176
*1: Vehicles with a smart key system
*2: If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.495, Watts: P.566)

922-1. Instrument cluster
COROLLA_U
■Outside temperature display
●In the following situations, the cor-
rect outside tempe rature may not
be displayed, or the display may
take longer than normal to
change:
• When stopped, or driving at low
speeds (less than 16 mph [25
km/h])
• When the outside temperature
has changed su ddenly (at the
entrance/exit of a garage, tunnel,
etc.)
●When “--” or “E” is displayed, the
system may be malfunctioning.
Take your vehicle to your Toyota
dealer.
■Liquid crystal display
 P. 1 0 1
■Changing the display
Press the display change button
until the desired item is dis-
played.
■Display items
 Odometer
Displays the total distance the vehi-
cle has been driven.
 Trip meter A/Trip meter B
Displays the distance the vehicle
has been driven since the meter
was last reset. Trip meters A and B
can be used to record and display
WA R N I N G
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before u sing the liquid
crystal informat ion display. At
extremely low temperatures, the
information display monitor may
respond slowly, and display
changes may be delayed.
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the indicator needle
of the tachometer enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.550)
Odometer and trip meter
display

972-1. Instrument cluster
2
Vehicle status information and indicators
COROLLA_Ube displayed, or the display may
take longer than normal to
change:
• When stopped, or driving at low speeds (less than 16 mph [25
km/h])
• When the outside temperature has changed su ddenly (at the
entrance/exit of a garage, tunnel,
etc.)
●When “--” or “E” is displayed, the
system may be malfunctioning.
Take your vehicle to your Toyota
dealer.
■Liquid crystal display
 P. 1 0 1
■Customization
The gauges and met ers can be cus-
tomized in of the multi-informa-
tion display. ( P.104)
■Changing the display
Press the display change button
until the desired item is dis-
played.
■Display items
 Odometer
Displays the total distance the vehi-
cle has been driven.
 Trip meter A/Trip meter B
Displays the distance the vehicle
has been driven since the meter
was last reset. Trip meters A and B
can be used to record and display
WA R N I N G
■The information display at
low temperatures
Allow the interior of the vehicle to
warm up before u sing the liquid
crystal informat ion display. At
extremely low temperatures, the
information display monitor may
respond slowly, and display
changes may be delayed.
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the indicator needle
of the tachometer enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.550)
Odometer and trip meter
display

1554-1. Before driving
4
Driving
COROLLA_U
WA R N I N G
■When the vehicle is stopped
●Do not race the engine.
If the vehicle is in any gear other
than P (continuously variable
transmission) or N, the vehicle
may accelerate suddenly and
unexpectedly, causing an acci-
dent.
●Vehicles with a continuously
variable transmission: In order
to prevent accidents due to the
vehicle rolling away, always
keep depressing the brake
pedal while the engine is run-
ning, and apply the parking
brake as necessary.
●If the vehicle is stopped on an
incline, in order to prevent acci-
dents caused by the vehicle roll-
ing forward or backward, always
depress the brake pedal and
securely apply the parking
brake as needed.
●Avoid revving or racing the
engine.
Running the engine at high
speed while the vehicle is
stopped may cause the exhaust
system to overheat, which could
result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette
lighters, spray cans, or soft
drink cans in the vehicle when it
is in the sun.
Doing so may result in the fol-
lowing:
• Gas may leak from a cigarette lighter or spray can, and may
lead to a fire.
• The temperature inside the vehicle may cause the plastic
lenses and plastic material of
glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray
over the interior of the vehicle,
and may also cause a short cir-
cuit in the vehicl e’s electrical
components.
●Do not leave cigarette lighters in
the vehicle. If a cigarette lighter
is in a place such as the glove
box or on the floor, it may be lit
accidentally when luggage is
loaded or the se at is adjusted,
causing a fire.
●Do not attach adhesive discs to
the windshield or windows. Do
not place containers such as air
fresheners on the instrument
panel or dashboard. Adhesive
discs or containers may act as
lenses, causing a fire in the
vehicle.
●Do not leave a door or window
open if the curved glass is
coated with a metallized film
such as a silver-colored one.
Reflected sunlight may cause
the glass to act a s a lens, caus-
ing a fire.
●Vehicles with a continuously
variable transmission: Always
apply the parking brake, shift
the shift lever to P, stop the
engine and loc k the vehicle.
Do not leave the vehicle unat-
tended while the engine is run-
ning.
If the vehicle is parked with the
shift lever in P but the parking
brake is not set, the vehicle may
start to move, possibly leading
to an accident.
Vehicles with a manual trans-
mission: Always apply the park-
ing brake, stop the engine and
lock the vehicle.
Do not leave the vehicle unat-
tended while the engine is run-
ning.

1564-1. Before driving
COROLLA_U
WA R N I N G
●Do not touch the exhaust pipes
while the engine is running or
immediately after turning the
engine off.
Doing so may cause burns.
■When taking a nap in the vehi-
cle
Always turn the engine off. Other-
wise, if you accidentally move the
shift lever or dep ress the acceler-
ator pedal, this could cause an
accident or fire due to engine
overheating. Additionally, if the
vehicle is parked in a poorly venti-
lated area, exhaust gases may
collect and enter the vehicle, lead-
ing to death or a serious health
hazard.
■When braking
●When the brakes a re wet, drive
more cautiously.
Braking distance increases
when the brakes are wet, and
this may cause one side of the
vehicle to brake differently than
the other side. Also, the parking
brake may not securely hold the
vehicle.
●If the brake booster device does
not operate, do not follow other
vehicles closely and avoid hills
or sharp turns that require brak-
ing.
In this case, braking is still pos-
sible, but the brake pedal
should be depressed more
firmly than usual. Also, the brak-
ing distance will increase. Have
your brakes fixed immediately.
●Do not pump the brake pedal if
the engine stalls.
Each push on the brake pedal
uses up the reserve for the
power-assisted brakes.
●The brake system consists of 2
individual hydraulic systems; if
one of the systems fails, the
other will still ope rate. In this
case, the brake pedal should be
depressed more firmly than
usual and the braking distance
will increase. Have your brakes
fixed immediately.
■If the vehicle becomes stuck
Do not spin the wheels exces-
sively when a driven wheel is up
in the air, or the vehicle is stuck in
sand, mud, etc. This may damage
the driveline components or pro-
pel the vehicle forward or back-
ward, causing an accident.
NOTICE
■When driving the vehicle
(vehicles with a continuously
variable transmission)
●Do not depress the accelerator
and brake pedals at the same
time during driving, as this may
restrain the engine output.
●Do not use the accelerator
pedal or depress the accelera-
tor and brake pedals at the
same time to hold the vehicle on
a hill.
■When driving the vehicle
(vehicles with a manual trans-
mission)
●Do not depress the accelerator
and brake pedals at the same
time during driving, as this may
restrain the engine output.
●Do not shift gea rs unless the
clutch pedal is fully depressed.
After shifting, do not release the
clutch pedal abruptly. Doing so
may damage the clutch, trans-
mission and gears.

1654-2. Driving procedures
4
Driving
COROLLA_UThe engine can be started from any
engine switch mode.
■If the engine does not start
●The engine immobilizer system
may not have been deactivated.
(
 P. 8 0 )
Contact your Toyota dealer.
●If a message related to start-up is
shown on the multi-information
display, read the message and fol-
low the instructions.
■If the battery is discharged
The engine cannot be started using
the smart key system. Refer to
P.546to restart the engine.
■Electronic key battery depletion
 P. 1 1 0
■Conditions affecting operation
 P. 1 2 7
■Notes for the entry function
 P. 1 2 8
■Steering lock function
●After turning the engine switch off
and opening and closing the
doors, the steer ing wheel will be
locked due to the steering lock
function. Operating the engine
switch again automatically can-
cels the steering lock.
●When the steering lock cannot be
released, “Push Engine Switch
while Turning Steering Wheel in
Either Direction” will be displayed
on the multi-information display.
Press the engine switch shortly
and firmly while turning the steer- ing wheel left and right.
●To prevent the steering lock motor
from overheating, operation of the
motor may be suspended if the
engine is turned on and off repeat-
edly in a short period of time. In
this case, refrain from operating
the engine switch.
After about 10
seconds, the steering lock motor
will resume functioning.
■Electronic key battery
 P.489
■Operation of the engine switch
●If the switch is not pressed shortly
and firmly, the engine switch
mode may not change or the
engine may not start.
●If attempting to res tart the engine
immediately after turning the
engine switch off, the engine may
not start in some cases. After turn-
ing the engine switch off, please
wait a few seconds before restart-
ing the engine.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.544.
WA R N I N G
■When starting the engine
Always start the engine while sit-
ting in the driver’s seat. Do not
depress the accelerator pedal
while starting the engine under
any circumstances.
Doing so may cause an accident
resulting in death o r serious injury.

1834-2. Driving procedures
4
Driving
COROLLA_Ureturn after about 1 minute.
■If “Parking Brake Unavailable”
is displayed on the multi-infor-
mation display
Operate the parking brake switch. If
the message does not disappear
after operating the switch several
times, the system may be malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer.
■Parking brake operation sound
When the parking brake operates, a
motor sound (whirring sound) may
be heard. This does not indicate a
malfunction.
■Parking brake operation
●Depending on the engine switch
position/mode, the parking brake
indicator and parking brake light
will turn on and stay on as
described below:
ON: Comes on until the parking
brake is released.
Not in ON: Stays on for approxi-
mately 15 seconds.
●When the engine switch is turned
off with the parking brake set, the
parking brake indicator and park-
ing brake light w ill stay on for
about 15 seconds. This does not
indicate a malfunction.
■When the parking brake switch
malfunctions
Automatic mode (automatic brake
setting and releas ing) will be turned
on automatically.
■Parking the vehicle
 P. 1 5 0
■Parking brake engaged warning
buzzer
A buzzer will sound if the vehicle is
driven with the parking brake
engaged. “Parking Brake ON” is dis-
played on the multi-information dis-
play.
■If the brake system warning
light comes on
 P. 5 1 1
■Usage in winter time
 P.277
WA R N I N G
■When parking the vehicle
Do not leave a child in the vehicle
alone. The parking brake may be
released unintentionally and there
is the danger of the vehicle mov-
ing that may lead to an accident
resulting in death o r serious injury.
■Parking brake switch
Do not set any objects near the
parking brake switch.
Objects may inte rfere with the
switch and may lead the parking
brake to unexpec tedly operate.
NOTICE
■When parking the vehicle
Before you leave the vehicle, set
the parking brake, shift the shift
lever to P (continuously variable
transmission) or N (manual trans-
mission) and make sure that the
vehicle does not move.
■When the system malfunc-
tions
Stop the vehicle in a safe place
and check the warning messages.
■When the parking brake can-
not be released due to a mal-
function
Driving the vehicle with the park-
ing brake set will lead to brake
components overheating, which
may affect braking performance
and increase brake wear.
Have the vehicle inspected by
your Toyota dealer immediately if
this occurs.

1934-3. Operating the lights and wipers
4
Driving
COROLLA_U
■The windshield wiper and
washer can be operated when
The engine switch is in ON.
■If no windshield washer fluid
sprays
Check that the wash er nozzles are
not blocked if there is washer fluid in
the windshield was her fluid reser-
voir.
■When stopping the engine in an
emergency while driving
If the windshield wipers are operat-
ing when the engine is stopped, the
windshield wipers will operate in
high speed operation. After the vehi-
cle is stopped, operation will return
to normal when the engine switch is
turned to ON.
WA R N I N G
■Caution regarding the use of
washer fluid
When it is cold, do not use the
washer fluid until the windshield
becomes warm. The fluid may
freeze on the windshield and
cause low visibility. This may lead
to an accident, resulting in death
or serious injury.
NOTICE
■When the washer fluid tank is
empty
Do not operate the switch continu-
ally as the washer fluid pump may
overheat.
■When a nozzle becomes
blocked
In this case, contact your Toyota
dealer.Do not try to clear it with a
pin or other object. The nozzle will
be damaged.

2744-5. Using the driving support systems
COROLLA_Udepressed
●The parking brake is not engaged
■Automatic system cancelation
of hill-start as
sist control
The hill-start assis t control will turn
off in any of the following situations:
●Vehicles with a continuously vari-
able transmission: The shift lever
is shifted to P or N.
●Vehicles with a manual transmis-
sion: The shift lever is shifted to R
when starting off forward on an
upward incline, or the shift lever is
shifted to other than R when start-
ing off backward on an upward
incline.
●The accelerator pedal is
depressed
●The parking brake is engaged
●2 seconds at maximum elapsed
after the brake pedal is released
■Sounds and vibrations caused
by the ABS, brake assist, VSC,
TRAC and hill-start assist con-
trol systems
●A sound may be heard from the
engine compartment when the
brake pedal is dep ressed repeat-
edly, when the engine is started or
just after the vehicle begins to
move. This sound does not indi-
cate that a malfunction has
occurred in any of these systems.
●Any of the following conditions
may occur when t he above sys-
tems are operating.
None of these indicates that a
malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also
after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down
slightly after the ABS is activated.
■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 reactivation of TRAC
and VSC systems
After turning th e 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 sy stem is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned o ff, 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 attempting 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 o f time. The steer-
ing wheel may f eel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle and turn the engine