2012 TOYOTA AYGO engine overheat

5
313 5-2. Steps to take in an emergency
When trouble arises
AYGO_WE_99E96E
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low.
High engine coolant temperature warning light
Indicates that the engine is almost overheating. (P. 336)
(Flashes)“STOP” warning light
Indicates a malfunction in:
• Engine oil pressure is too low; or
• Engine is almost overheating.

5
315 5-2. Steps to take in an emergency
When trouble arises
AYGO_WE_99E96E
Have the vehicle inspected immediately.
Failure to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional immedi-
ately.
To prevent the clutch from overheating
Do not use the accelerator pedal or starting assist system to hold the
vehicle on a hill.
On an uphill incline, observe the following whenever possible:
• Maintain a safe distance from the vehicle ahead and avoid unneces-
sary starting off and stopping.
• Avoid using E mode on an uphill slope. This will help to avoid unneces-
sary gear changes.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic multi-mode manual transmission control
system (if equipped); or
• The emission control system.
(Flashes)SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system (vehicles with VSC system).
Electric power steering warning light (if equipped)
Indicates a malfunction in the EPS system.

336
5-2. Steps to take in an emergency
AYGO_WE_99E96E
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the high engine coolant temperature warning light
goes off and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Toyota
dealer or repairer, or another duly qualified and equipped
professional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.

5
337 5-2. Steps to take in an emergency
When trouble arises
AYGO_WE_99E96E
Overheating
If you observe the following, your vehicle may be overheating:
The high engine coolant temperature warning light comes on or a loss of
power is experienced.
Steam comes out from under the hood.
CAUTION
To prevent an accident or injury when inspecting under the hood of
your vehicle
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, caus-
ing serious injuries such as burns.
Keep hands and clothing away from the fan and drive belt while the engine
is running.
Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
(P. 350)
Have the vehicle inspected at the nearest authorized Toyota dealer
or repairer, or another duly qualified and equipped professional as
soon as possible.

360 Alphabetical index
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Care
Exterior.................................. 242
Interior ................................... 245
Seat belts .............................. 246
CD player .......................... 185, 200
Chains ....................................... 163
Child-protectors ......................... 46
Child restraint system
Baby seats, definition .............. 95
Baby seats, installation ......... 106
Child seats, definition .............. 95
Child seats, installation ......... 106
Installing CRS with ISOFIX
rigid anchor ......................... 110
Installing CRS with seat
belts .................................... 107
Installing CRS with top
straps .................................. 110
Junior seats, definition ............ 95
Junior seats, installation........ 106
Child safety
Airbag precautions .................. 88
Battery precautions ....... 268, 334
Child-protectors....................... 46
Child restraint system ............. 95
How your child should wear
the seat belt .......................... 60
Installing child restraints........ 106
Power window precautions ..... 66
Removed key battery
precautions ......................... 281
Seat belt precautions .............. 61
Cleaning
Exterior.................................. 242
Interior ................................... 245
Seat belts .............................. 246
Clock ......................................... 234
Condenser ................................ 266
Cooling system
Engine overheating ............... 336
Cup holders .............................. 231Curtain shield airbags ............... 82
Daytime running light
system .................................... 150
Defogger
Rear window ......................... 178
Dimension ................................ 344
Do-it-yourself maintenance .... 251
Doors
Back door................................ 48
Door glasses ........................... 66
Door lock........................... 36, 44
Door windows ......................... 66
Rear door child protector ........ 46
Side doors............................... 44
Side mirrors ............................ 65
Driver’s seat belt reminder
light......................................... 316
Driving
Break-in tips .......................... 121
Correct posture ....................... 80
Procedures ........................... 118
Winter driving tips ................. 163
Electric power steering ........... 158
Emergency flashers
Switch ................................... 304
Emergency, in case of
If the engine will not start ...... 329
If the shift lever cannot be
shifted ................................. 330
If the vehicle battery is
discharged .......................... 332
If the warning buzzer
sounds ................................ 312
If the warning light
turns on .............................. 312
If you have a flat tire ............ 318
If you lose your keys ............. 331
If you think something is
wrong.................................. 310C
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361 Alphabetical index
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If your vehicle becomes
stuck ................................... 339
If your vehicle has to be
stopped in an emergency ... 341
If your vehicle needs to be
towed .................................. 305
If your vehicle overheats ....... 336
Engine
Compartment ........................ 260
Engine switch ........................ 130
Hood ..................................... 254
How to start the
engine ................................. 130
Identification number............. 344
If the engine will not start ...... 329
Ignition switch ....................... 130
Overheating .......................... 336
Engine coolant
Capacity ................................ 350
Checking ............................... 264
Preparing and checking
before winter ....................... 163
Engine immobilizer system ...... 73
Engine oil
Capacity ................................ 347
Checking ............................... 261
Preparing and checking
before winter ....................... 163
Engine switch........................... 130
EPS............................................ 158
Floor mat .................................. 238
Fluid
Washer.................................. 269
Fog lights
Replacing light bulbs ............. 292
Switch ................................... 152
Wattage................................. 354
Front fog lights
Replacing light bulbs ............. 292
Switch ................................... 153Wattage ................................ 354
Front passenger’s seat belt
reminder light ........................ 316
Front position lights
Replacing light bulbs............. 292
Switch ................................... 148
Wattage ................................ 354
Front seats
Adjustment .............................. 52
Front turn signal lights
Replacing light bulbs............. 292
Switch ................................... 140
Wattage ................................ 354
Fuel
Capacity ................................ 347
Fuel gauge ............................ 143
Fuel pump shut off system.... 311
Gas station information ......... 368
Information ............................ 355
Refueling................................. 69
Type ...................................... 347
Fuel door .................................... 69
Fuel filler door............................ 69
Fuel pump shut off system ..... 311
Fuses ........................................ 282
Gas station information .......... 368
Gauges ..................................... 143
Hands-free phone system....... 214
Hazard lights
Switch ................................... 304
Head restraints
Adjusting ................................ 57
Headlights
Replacing light bulbs............. 292
Switch ................................... 148
Wattage ................................ 354
Hood ......................................... 254
Horn .......................................... 142
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362 Alphabetical index
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Identification
Engine ................................... 345
Vehicle .................................. 344
Ignition switch.......................... 130
Indicator lights ......................... 145
Inside rear view mirror .............. 64
Interior light
Interior light ........................... 229
Switch ................................... 229
Wattage................................. 354
iPod ........................................... 206
Jack
Positioning a floor jack .......... 257
Vehicle-equipped
jack ..................................... 318
Jack handle .............................. 318
Keys
Engine switch ........................ 130
If you lose your keys ............. 331
Ignition switch ....................... 130
Key number............................. 34
Keys ........................................ 34
Wireless remote control key.... 36
License plate lights
Replacing light bulbs ............. 292
Wattage................................. 354
Light bulbs
Replacing .............................. 292
Wattage................................. 354
Lights
Emergency flasher switch ..... 304
Fog light switch ..................... 152
Hazard light switch ................ 304
Headlights switch .................. 148
Interior light switch ................ 229
Replacing light bulbs ............. 292
Turn signal lever ................... 140
Wattage................................. 354Lock steering column ............. 131
Maintenance
Do-it-yourself maintenance ... 251
Maintenance data ................. 344
Maintenance requirements ... 248
Manual air conditioning
system .................................... 170
Manual headlight leveling
dial .......................................... 149
Manual transmission ............... 138
Meter ......................................... 143
Mirrors
Inside rear view mirror ............ 64
Side mirrors ............................ 65
Vanity mirrors........................ 233
MP3 disc ................................... 200
Multi-mode manual
transmission .......................... 133
Odometer.................................. 143
Oil
Engine oil .............................. 261
Opener
Back door................................ 48
Hood ..................................... 254
Outside rear view mirrors
Adjusting and folding .............. 65
Overheating, Engine................ 336
Parking brake ........................... 141
Power outlets ........................... 237
Power windows.......................... 66I
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366
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What to do if...
What to do if...
A tire puncturesP. 318If you have a flat tire
The engine does not start
P. 329If the engine will not start
P. 7 3Engine immobilizer system
P. 332If the vehicle battery is discharged
The shift lever cannot be
moved outP. 330If the shift lever cannot be shifted
The high engine coolant temperature
warning light flashes or comes on
Steam can be seen coming
from under the hood
P. 336If your vehicle overheats
The key is lostP. 331If you lose your keys
The battery runs outP. 332If the vehicle battery is discharged
The doors cannot be lockedP. 4 4Side doors
P. 4 8Back door
The vehicle is stuck in
mud or sandP. 339If the vehicle becomes stuck
A warning light or indicator light
comes onP. 312If a warning light turns on or a
warning buzzer sounds...