2010 TOYOTA YARIS engine overheat

When trouble arises5
303
5-1. Essential information
Emergency flashers ......... 304
If your vehicle needs to
be towed ........................ 305
If you think something is
wrong ............................. 311
Fuel pump shut off
system ........................... 312
Event data recorder ......... 3135-2. Steps to take in an
emergency
If a warning light turns on
or a warning buzzer
sounds... ........................ 315
If you have a flat tire......... 325
If the engine will not
start ................................ 337
If the shift lever cannot
be shifted from P............ 339
If you lose your keys ........ 340
If the vehicle battery is
discharged ..................... 341
If your vehicle
overheats ....................... 345
If the vehicle becomes
stuck .............................. 348
If your vehicle has to be
stopped in an
emergency ..................... 350

316 5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
*: The light may come on when the oil level is extremely low. It is not designed
to indicate low oil level, and the oil level must be checked using the engine
oil level dipstick.
Have the vehicle inspected immediately.
Failing 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 your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging sys-
tem.
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low*.
High engine coolant temperature warning light
Indicate a engine is almost overheating.(P. 345)
Warning lightWarning light/Details
(except Canada)
(Canada)Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-
tem; or
• Emission control system.

5
When trouble arises
345
5-2. Steps to take in an emergency
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
subsides 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 your local Toyota
dealer.

5
When trouble arises
347 5-2. Steps to take in an emergency
■Overheating
If you observe the following, your vehicle may be overheating.
●The high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
●Steam is coming 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 injury such as burns.
●Keep hands and clothing away from the fan and other belts 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.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too
quickly can cause damage to the engine.

391 Alphabetical index
If the warning light turns
on ....................................... 315
If you have a flat tire ............ 325
If you lose your keys............. 340
If you think something is
wrong ................................. 311
If the vehicle becomes
stuck................................... 348
If your vehicle has to be
stopped in an emergency... 350
If your vehicle needs to be
towed ................................. 305
If your vehicle overheats ...... 345
Engine
Compartment........................ 253
Engine switch ....................... 129
Hood ..................................... 250
How to start the engine ........ 129
Identification number ............ 353
If the engine will not start...... 337
Ignition switch ....................... 129
Immobilizer system................. 78
Overheating .......................... 345
Specifications ....................... 354
Warning light ........................ 316
Engine coolant
Capacity ............................... 356
Checking .............................. 258
Indicator................................ 145
Preparing and checking
before winter ...................... 169
Type ..................................... 356
Warning light ........................ 316
Engine immobilizer system ...... 78
Engine oil
Capacity ............................... 355
Checking .............................. 254
Grade ................................... 355
Initializing the maintenance
data .................................... 256
Preparing and checking
before winter ...................... 169
Warning light ................ 316, 318Engine switch ...........................129
Engine oil maintenance
data .........................................256
EPS
EPS .......................................160
Warning light .........................316
Event data recorder .................313
Floor mat...................................232
Fluid
Automatic transmission .........357
Brake .....................................260
Clutch ....................................358
Warning light .................315, 318
Washer ..................................264
Fog lights
Indicator ................................151
Replacing light bulbs .............294
Switch....................................151
Wattage .................................360
Front fog lights
Indicator ................................151
Replacing light bulbs .............294
Switch....................................151
Wattage .................................360
Front passenger's seat belt
reminder light.........................318
Front seats
Adjustment ..............................40
Front side marker lights
Replacing light bulbs .............294
Switch....................................149
Wattage .................................360
Front turn signal lights
Indicator ................................135
Lever .....................................135
Replacing light bulbs .............294
Switch....................................135
Wattage .................................360
Fuel
Capacity ................................354
Fuel pump shut off system ....312
Gas station information .........400
F

393 Alphabetical index
Luggage compartment features
Auxiliary boxes ..................... 233
Luggage cover...................... 234
Luggage compartment light
Wattage ................................ 360
Maintenance
Do-it-yourself
maintenance ...................... 247
Emission inspection and
maintenance (I/M)
programs ............................ 246
General maintenance ........... 243
Maintenance data ................. 352
Maintenance requirements ... 241
Vehicle exterior..................... 236
Vehicle interior...................... 238
Manual transmission
Manual transmission ............ 134
Oil ......................................... 358
Meter
Instrument panel light
control ................................ 143
Meters .................................. 139
Mirrors
Inside rear view mirror ............ 67
Side mirror heaters ............... 193
Side mirrors ............................ 68
Vanity mirrors ....................... 228
MP3 disc................................... 208
Noise from under vehicle ......... 20
Odometer ................................. 142
Oil
Engine oil.............................. 254
Manual transmission ............ 358
Warning light ................ 316, 318
Opener
Fuel door ................................ 74
Fuel filler door......................... 74
Hood ..................................... 250Outside rear view mirrors
Adjusting .................................68
Folding ....................................69
Overheating, Engine ................345
Parking brake ...........................136
Parking lights
Replacing light bulbs .............294
Switch....................................149
Wattage .................................360
Personal lights
Switch....................................219
Wattage .................................360
Power outlet .............................231
Power windows ..........................71
Radiator ....................................259
Radio .........................................197
Rear seat
Folding down ...........................45
Rear side marker lights
Replacing light bulbs .............294
Switch....................................149
Wattage .................................360
Rear turn signal lights
Indicator ................................135
Lever .....................................135
Replacing light bulbs .............294
Switch....................................135
Wattage .................................360
Rear window defogger ............193
Rear window wiper ..................155
Replacing
Key battery ............................281
Fuses ....................................283
Light bulbs .............................294
Tires ..............................266, 325
Reporting safety defects
for U.S. owners ......................382
M
N
O
P
R

397
What to do if...
What to do if...
A tire puncturesP. 325If you have a flat tire
The engine does not start
P. 337If the engine will not start
P. 7 8Engine immobilizer system
P. 341If the vehicle battery is discharged
The shift lever cannot be
moved outP. 339If the shift lever cannot be shifted
from P
The engine coolant temperature
warning light flashes or comes on
Steam can be seen coming
from under the hood
P. 345If your vehicle overheats
The key is lostP. 340If you lose your keys
The battery runs outP. 341If the vehicle battery is discharged
The doors cannot be lockedP. 3 1Side doors
The horn begins to soundP. 8 0Alarm
The vehicle is stuck in
mud or sandP. 348If the vehicle becomes stuck