2023 TOYOTA COROLLA coolant temperature

3567-2. Steps to take in an emergency
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■High coolant temperature warning light* (warning buzzer)
*: This light illuminat es on the multi-information display.
If a war ning light tur ns on or a war ning buzzer
sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunction
in the system. However, if this continues to occur, have the
vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(Red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. Continuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction i n the parking brake system
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the engine c oolant temperature is exces-
sively high
 Immediately stop the vehicle in a safe place.
Handling method ( P.387)

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.

442Alphabetical Index
If your vehicle has to be stopped in an emergency................. 348
Ignition switch (engine switch) ................................... 154, 155
Overheating.......................... 387
Tachometer ............................ 86
Engine coolant Capacity ............................... 395
Checking .............................. 306
Preparing and c hecking before
winter.................................. 253
Engine coolant temperature gauge................................. 86, 89
Engine immobilizer system ..... 77
Engine oil Capacity ............................... 394
Checking .............................. 304
Preparing and c hecking before
winter.................................. 253
Warning light ........................ 357
Engine switch ................. 154, 155 Auto power off function ........ 159
Changing the engine switch modes ................................ 158
If your vehicle has to be stopped in an emergency................. 348
Enhanced VSC ........................ 249
EPS (Electric Power Steering) ............................................... 249Warning light ........................ 358
Event data recorder (EDR)......... 8
F
Flat tire Tire pressure warning system........................................... 313
Vehicles with a spare tire ..... 370
Floor mats ................................. 24
Fluid Brake .................................... 396
Continuously variable transmis-sion..................................... 396 Washer .................................310
Front passenger occupant clas- sification system ....................41
Front seats Adjustment ...........................125
Cleaning ...............................291
Correct driving posture ...........25
Head restraints .....................128
Seat heaters ....... ..................269
Front side marker lights Light switch...........................173
Replacing light bulbs ............342
Wattage ................................398
Front turn signal lights Replacing light bulbs ............341
Turn signal lever ...................167
Wattage ................................398
Front turn signal/parking lights Replacing light bulbs ............341
Fuel Capacity ...............................393
Fuel gauge .......................86, 89
Fuel pump shut off system ...355
Information ......... ..................399
Refueling ..............................180
Type......................................393
Warning light.........................359
Fuel consumption Average fuel economy ......93, 98
Current fuel consumption .93, 98
Fuel economy .....................93, 98
Fuel filler door Refueling ..............................180
Fuel gauge...........................86, 89
Fuel pump shut off system ....355
Fuses .......................................336
G
Gauges ................................86, 89
Glove box ................................274
Glove box light........................274

449Alphabetical Index
U
USB charging port.................. 277
V
Vanity lights ............................ 284Wattage ................................ 398
Vanity mirrors ......................... 284
Vehicle data recording ............... 6
Vehicle identifi cation number392
Vehicle information display ... 95, 100
Vehicle Stability Control (VSC) ............................................... 248
VSC (Vehicle Stability Control) ............................................... 248
W
Warning buzzers ABS ...................................... 358
Airbags ................................. 357
Approach warning ................ 226
Brake hold ............................ 363
Brake Override System ........ 358
Brake system ....................... 356
Charging system .................. 357
Downshifting......................... 166
Drive-Start Control ............... 358
Electric power steering ......... 358
Engine .................................. 357
High coolant temperature ..... 356
Key reminder ........................ 155
LDA (Lane Departure Alert) 206, 361
Low engine oil pressure ....... 357
LTA (Lane Tracing Assist) ... 201, 361
Open door .................... 113, 116
PDA (Proactive Driving Assist) ........................................... 361
Seat belt ....................... 359, 360 Warning lights .........................356
ABS ......................................358
Brake hold operated indicator...........................................363
Brake Override System ........358
Brake system ........................356
Charging system ..................357
Cruise control indicator.........362
Drive-Start Control ................358
Driving assist information indica- tor .......................................362
Dynamic radar cruise control indicator ..............................361
Electric power steering .........358
High coolant temperature .....356
LDA indicator ........................361
Low engine oil pressure .......357
Low fuel level........................359
LTA indicator .........................361
Malfunction indica tor lamp ....357
Parking brake indicator.........363
PDA indicator........................361
Pre-collision syst em .............361
Seat belt reminder light 359, 360
Slip indicator .........................362
SRS ......................................357
Tire pressure ...... ..................360
Warning messages .................366
Washer Checking ..............................310
Preparing and checking before winter ..................................253
Switch ...................................178
Washing and waxing ..............288
Weight Cargo capacity .....................152
Load limits ............................152
Wheels .....................................330 Replacing .............................330
Size ......................................397
Window lock switch ...............136