2010 TOYOTA YARIS SEDAN radiator cap

234
4-3. Do-it-yourself maintenance
Engine compar tment
Washer fluid tank (→P. 244)
Engine oil filler cap (→ P. 235)
Engine oil level dipstick (→ P. 235)
Radiator cap
Battery ( →P. 242)
Brake fluid reservoir (→ P. 240)Fuse box ( →P. 263)
Condenser ( →P. 240)
Electric cooling fan
Engine coolant reservoir (→ P. 239)
Radiator ( →P. 240)

239
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine coolant
The coolant level is satisfactory if it is between the FULL and LOW
lines on the reservoir when the engine is cold.
Reservoir cap
FULL
LOW
If the level is on or below the
LOW line, add coolant up to the
FULL line.
nIf the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, reservoir cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Toyota dealer pressure test the cap and
check for leaks in the cooling system.
n Coolant selection
Only use “Toyota Super Long Life Coolant” or similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
Except Canada:“Toyota Super Long Life Coolant” is a mixture of 50% cool- ant and 50% deionized water. (Enabled: -31 °F [-35 °C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Enabled: -44 °F [-42 °C])
For more details about engine coolant, contact your Toyota dealer.
CAUTION
n When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing burns or other injuries.

5
When trouble arises
327
5-2. Steps to take in an emergency
n
Overheating
If you observe the following, your vehicle may be overheating.
lThe high engine coolant temperature warning light flashes or comes on
or a loss of power is experienced.
l Steam is coming from under the hood.
CAUTION
nTo prevent an accident or injury when inspecting under the hood of
your vehicle
lIf 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.
l Keep hands and clothing away from the fan and other belts while the
engine is running.
l 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
nWhen 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.

373
Alphabetical index
Tail lights switch ................... 130
Turn signal lights switch ....... 117
Load capacity .......................... 147
Lock steering column ............. 112
Maintenance Do-it-yourself
maintenance ...................... 227
Emission inspection and maintenance (I/M)
programs ............................ 226
General maintenance ........... 223
Maintenance data ................. 332
Maintenance requirements ... 221
Vehicle exterior..................... 216
Vehicle interior...................... 218
Manual transmission Manual transmission ............ 116
Oil ......................................... 339
Meter Instrument panel light control ................................ 125
Meters .................................. 121
Mirrors Inside rear view mirror ............ 52
Side mirror heaters ............... 170
Side mirrors ............................ 53
Vanity mirrors ....................... 207
MP3 disc................................... 187
Noise from under vehicle ......... 18
Odometer ................................. 124
Oil Engine oil.............................. 235
Manual transmission ............ 339
Warning light ................. 298,300
Opener
Fuel door ................................ 58
Fuel filler door......................... 58
Hood ..................................... 231
Trunk ...................................... 33 Outside rear view mirrors
Adjusting .................................53
Defogger ...............................170
Folding ....................................54
Overheating, Engine ................325
Parking brake ...........................118
Parking lights
Replacing light bulbs .............274
Switch....................................130
Wattage .................................342
Personal lights Switch....................................199
Wattage .................................342
Portable ashtray .......................209
Power outlet .............................211
Power windows ..........................56
Radiator ....................................240
Radio .........................................175
Rear seat Folding down ...........................38
Rear side marker lights Replacing light bulbs .............274
Switch....................................130
Wattage .................................342
Rear turn signal lights
Indicator ................................117
Lever .....................................117
Replacing light bulbs .............274
Switch....................................117
Wattage .................................342
Rear window defogger ............170
Replacing
Key battery ............................261
Fuses ....................................263
Light bulbs .............................274
Tires ...............................246,307
Reporting safety defects
for U.S. owners ......................364
M
N
O
P
R