2023 TOYOTA COROLLA cooling

3877-2. Steps to take in an emergency
7
When trouble arises1Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the engine.
2 If you see steam: Carefully lift
the hood after the steam sub-
sides.
If you do not see steam:
Carefully lift the hood.
3 After the engine has cooled
down sufficiently, inspect the hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4
The coolant level is satisfac-
tory if it is between the “MAX”
and “MIN” lines on the reser-
voir.
Reservoir
“MAX” line
“MIN” line
5 Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is unavail-
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
The engine coolant tem-
perature gauge ( P.86, 89)
is in the red zone or a loss
of engine power is experi-
enced. (For example, the
vehicle speed does not
increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” is shown
on the multi-information dis-
play.
 Steam comes out from
under the hood.
Correction procedures

3887-2. Steps to take in an emergency
able.
6Start the engine and turn the
air conditioning system on to
check that the radiator cool-
ing fan operates and to check
for coolant leaks from the
radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is op erating by check-
ing the fan sound and air flow. If it is
difficult to check these, turn the air
conditioning system on and off
repeatedly. (The fan may not oper-
ate in freezing temperatures.)
7 If the fan is not operating:
Stop the engine immediately
and contact your Toyota
dealer.
If the fan is operating: Have
the vehicle inspected at the
nearest Toyota dealer.
WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions. Failure to do so may result
in serious injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●Keep hands and clothing (espe-
cially a tie, a sca rf or a muffler)
away from the fan and belts.
Failure to do so may cause the
hands or clothing to be caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while the engine and
radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the
engine has cooled down suffi-
ciently. Adding cool coolant to a
hot engine too quickly can cause
damage to the engine.
■To prevent damage to the
cooling system
Observe the following precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust etc.).
●Do not use any coolant additive.

3958-1. Specifications
8
Vehicle specifications
the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered marks is added
to some oil containers to help
you select the oil you should
use.
Cooling system
Capacity (Reference)6.8 qt. (6.4 L, 5.6 Imp. qt.)
Coolant type
Use either o f the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality et hylene glycol-based
non-silicate, non -amine, non-nitrite, and
non-borate coolant with long-life hybrid organic
acid technology
Do not use pla in water alone.
Ignition system (spark plug)
MakeDENSO FC20HR-Q8
Gap0.032 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (battery)
Open voltage at 68°F (20°C):
12.3 V or higher
(Turn the engine switch off and turn on the
high beam headlights for 30 seconds.)
Charging rates5 A max.

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