2021 TOYOTA AYGO coolant temperature

4508-2. Steps to take in an emergency
AYGO_OM_Europe_OM9A012E
(Flashes or comes on)
High engine coolant temperature warning light
Indicates that the engine is overheating.
As the coolant temperature rise, it changes from flashing
to comes on.
 P. 504
(Flashes)
“STOP” warning light
Indicates a malfunction in:
• Engine oil pressure is too low; or
• Engine is almost overheating.
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
(Comes on)
Multi-mode manual transmissi on warning light (vehicles
with a multi-mode manual transmission)
Indicates a malfunction in the multi-mode manual trans-
mission system.
 Have the system checked by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
Multi-mode manual transmission warning light (warning
buzzer) (vehicles with a multi-mode manual transmis-
sion)
Indicates a malfunction in the multi-mode manual trans-
mission system and that the clutch has become hot due to
excessive load.
 Pull over and shift the shift lever to N. Wait for about
15 minutes for the clutch to cool down. Have the sys-
tem checked by any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
(Flashes)
Heat clutch warning light (warning buzzer) (vehicles
with a multi-mode manual transmission)
Indicates that the clutch has become hot, but does not
indicate a malfunction in the multi-mode manual transmis-
sion system.
 Pull over and shift the shift lever to N. Wait for about
15 minutes for the clutch to cool down.
Warning lightWarning light/Details/Actions

5048-2. Steps to take in an emergency
AYGO_OM_Europe_OM9A012E
If your vehicle overheats
●The high engine coolant temperature warning light (P. 450) comes
on or flashes, or a loss of engine power is experienced. (For exam-
ple, the vehicle speed does not increase.)
● Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact any
authorized Toyota retailer or
Toyota authorized repairer, or
any reliable repairer.
The following may indicate that your vehicle is overheating.
Correction procedures
1
2

5068-2. Steps to take in an emergency
AYGO_OM_Europe_OM9A012E
If the fan is not operating:
Stop the engine immediately and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
If the fan is operating:
Have the vehicle inspected at the nearest any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
■ When inspecting under the hood of your vehicle
Observe the following precautions.
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 subsided. The engine compartment may be very hot.
● Keep hands and clothing (especially a tie, a scarf 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 radiator 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 sufficiently. 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 precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust,
etc.).
● Do not use any coolant additives.

533Alphabetical index
AYGO_OM_Europe_OM9A012E
Electric Power Steering
(EPS) ....................................... 279
Function ................................ 279
Warning light ......................... 451
Electronic key .......................... 112
Battery-saving function ......... 146
If the electronic key does not
operate properly ................. 497
Replacing the battery ............ 415
Emergency, in case of
If the electronic key does not
operate properly ................. 497
If the engine will not start ...... 494
If the shift lever cannot be
shifted ................................. 496
If the vehicle has discharged
battery................................. 500
If the vehicle is trapped in
rising water ......................... 441
If the warning buzzer
sounds ................................ 449
If the warning light
turns on............................... 449
If you have a flat tire...... 459, 481
If you lose your keys ............. 114
If you think something is
wrong .................................. 447
If your vehicle becomes
stuck ................................... 507
If your vehicle needs to be
towed .................................. 442
If your vehicle overheats ....... 504
Emergency brake signal ......... 279
Emergency flashers................. 438
Emergency tire puncture
repair kit ................................. 459Engine
“ACC” position ...................... 214
Accessory mode ................... 219
Compartment ........................ 393
Engine switch................ 214, 217
Hood ..................................... 390
How to start
the engine................... 214, 217
If the engine will not start ...... 494
Ignition switch
(engine switch) ........... 214, 217
Overheating .......................... 504
Engine coolant ......................... 397
Capacity ................................ 515
Checking ............................... 397
Preparing and checking
before winter....................... 285
Engine coolant
temperature
warning light .......................... 450
Engine immobilizer system ...... 75
Engine oil ................................. 394
Capacity ................................ 512
Checking ............................... 394
Preparing and checking
before winter....................... 285
Engine switch
(ignition switch)............. 214, 217
EPS (Electronic Power
Steering)................................. 279
Function ................................ 279
Warning light ......................... 451
E

542Alphabetical index
AYGO_OM_Europe_OM9A012E
Warning lights .......................... 449
ABS ....................................... 451
Brake system ........................ 449
Charging system ................... 449
Electric power steering.......... 451
High engine coolant
temperature ........................ 450
LDA
(Lane Departure Alert) ....... 453
Low engine oil pressure ........ 449
Low fuel level ........................ 454
Malfunction indicator lamp .... 451
Multi-mode manual
transmission warning
light ..................................... 450
Open door ............................. 453
PCS (Pre-Collision
system) .............................. 452
Seat belt reminder light ......... 453
Slip indicator light .................. 453
Smart entry & start
system ........................ 453, 457
Speed limiter ......................... 452
SRS....................................... 451
“STOP” warning light............. 450
Stop & Start cancel
indicator .............................. 452
Tire pressure ......................... 454Washer.............................. 237, 239
Checking ............................... 402
Preparing and checking
before winter....................... 285
Switch ........................... 237, 239
Washing and waxing ............... 378
Weights..................................... 510
Wheels ...................................... 412
Replacing wheels.................. 412
Size ....................................... 518
Window glasses....................... 194
Windows ................................... 194
Power windows ..................... 194
Rear window
defogger ..................... 354, 360
Windshield wipers ................... 237
Winter driving tips ................... 285
Wireless remote control key... 112
Locking/Unlocking......... 133, 137
Replacing the battery ............ 415