2023 TOYOTA COROLLA overheating

14Pictorial index
Fuel filler door .................................................................... P.180
Refueling method ............................................... .................. P.181
Fuel type/fuel tan k capacity ................................... .............. P.393
Tires..................................................................................... P.311
Tire size/inflation pressure ................................... ................ P.397
Winter tires/tire chains ....................................... .................. P.253
Checking/rotation/tire pressure warning system
*2............... P.311
Coping with flat tires......................................... .................... P.370
Hood ........................................................... ......................... P.302
Opening ............................................................................... P.302
Engine oil ..................................................... ........................ P.394
Coping with overheating ...................................................... P.387
Headlights/daytime running lights .............................. ..... P.173
Turn signal lights/parking lights .............................. ......... P.173
Front side marker lights ....................................... ............. P.173
LED accent lights
*2............................................................ P.1 73
Stop lights/tail lights/rear side marker lights/turn signal lig hts
P. 1 7 3
License plate lights........................................... ................. P.173
Tail lights
*2............................................................... ........... P.173
Back-up lights
Shifting the shift position to R ............................... ....... P.160, 162
Side turn signal lights
*2..................................................... P.167
*1: Vehicles with a smart key system
*2: If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.340, Watts: P.398)

872-1. Instrument cluster
2
Vehicle status information and indicators
■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 12 mph [20
km/h])
• When the outside temperature
has changed suddenly (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. 9 2
■Customization
The gauges and meters can be cus-
tomized in of the multi-informa-
tion display. ( P.412)■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
WARNING
■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.387)
Odometer and trip meter
display

902-1. Instrument cluster
Display change button (P.90)
■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 12 mph [20
km/h])
• When the outside temperature
has changed suddenly (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. 9 7
■Customization
The gauges and meters can be cus-
tomized in of the multi-informa-
tion display. ( P.412)■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
WARNING
■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.387)
Odometer and trip meter
display

1474-1. Before driving
4
Driving
WARNING
●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 seat 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 as a lens, caus-
ing a fire.
●Always apply the parking brake,
shift the shift lever to P, stop the
engine and lock 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.
●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 depress 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 are wet, drive
more cautiously.
Braking distance increases
when the brakes are wet, and
this may cause one side of the
vehicle to brake d ifferently 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 t hat 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 operate. In this
case, the brake pedal should be
depressed more firmly than
usual and the braking distance
will increase. Have your brakes
fixed immediately.

1704-2. Driving procedures
position/mode, the parking brake
indicator 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 light will
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 4 3
■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 (with the vehicle reaching a
speed of 3 mph [5 km/h]).
■If the brake system warning
light comes on
 P. 3 5 6
■Usage in winter time
 P. 2 5 3
WARNING
■When parking the vehicle
Do not leave a child in the vehicle
alone. The parking brake may be
released unintentionally by a child
and there is the danger of the
vehicle moving that may lead to
an accident resulting in death or
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 unexpectedly operate.
■Parking brake automatic lock
function
Never use the automatic parking
brake engagement function in
place of normal parking brake
operation. This function is
designed to reduce the risk of a
collision due to the driver forget-
ting to engage the parking brake.
Over-reliance on this function to
park the vehicle safely may lead
to an accident resulting in death
or serious injury.
NOTICE
■When parking the vehicle
Before you leave the vehicle, shift
the shift lever to P, set the parking
brake and make s ure 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 vehicle battery is
discharged
The parking brake system cannot
be activated. ( P.383)
■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.

2514-5. Using the driving support systems
4
Driving
the brake system, but this is not a
malfunction.
■Automatic reactivation 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 syst em 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 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 below
approximately 0 mph (0 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 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

2705-1. Using the air conditioning system and defogger
When the seat heater is on, the
indicator illumina tes on the seat
heater switch.
■The heated steering wheel and
seat heaters can be used when
The engine switch is in ON.
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.

440Alphabetical Index
Parking brake ....................... 168
Warning light ........................ 356
Brake assist ............................ 248
Break-in tips ........ ................... 144
Brightness control Instrument panel light control88, 91
Meter light control ................... 90
BSM (Blind Spot Monitor) ...... 232
C
Care Exterior ................................. 288
Interior .................................. 291
Seat belts ............................. 291
Wheels and wheel ornaments........................................... 288
Cargo capacity ....................... 152
Chains ..................................... 254
Child restraint system Fixed with a LATCH system ... 64
Fixed with a seat belt ............. 60
Front passenger occupant clas-sification system ................... 41
Points to remember ................ 48
Riding with children ................ 47
Types of child restraint system installation met hod ............... 50
Using an anchor bracket ........ 68
Child safety Airbag precautions ................. 36
Battery precautions ...... 309, 386
Child restraint system............. 50
Heated steering wheel and seat
heater precautions ............. 269
How your child should wear the seat belt................................ 28
Moon roof precau tions ......... 138
Power window lock switch.... 136
Power window precautions .. 135
Rear door child-protectors.... 116 Seat belt extender precautions
.............................................28
Seat belt precautions..............47
Trunk precautions ................. 117
Child-protectors...................... 116
Cleaning Exterior .................................288
Interior ..................................291
Seat belts .............................291
Wheels and wheel ornaments...........................................288
Clock ................... .....86, 88, 89, 91
Coat hooks ..............................285
Condenser ............. ..................307
Console box ............................275
Consumption screen ..............102
Continuously variable transmis- sion ................................160, 162If th e s hif t le ver ca n no t b e s hif te d from P .........................161, 164
M mode ................................165
Paddle shift switches ....164, 165
Cooling system .......................306 Engine overheating ..............387
Cruise control .........................227
Cup holders.............................274
Current fuel consumption..93, 98
Curtain shield airbags ..............31
Customizable featu res ...........412
D
Daytime running light system173
Defogger
Outside rear view mirrors ...260, 265
Rear window.................260, 265
Windshield ....................259, 264
Dimensions .............................392
Dinghy towing .........................153
Display Cruise control .......................228
Dynamic radar cruise control 222