2012 TOYOTA PRIUS C radiator

370 4-3. Do-it-yourself maintenance
■Coolant selection
Only use “Toyota Super Long Life Coolant” or a similar high quality ethylene
glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant
with long-life hybrid organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiators, hoses, engine/power control unit coolant reser-
voir caps, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling systems.
CAUTION
■When the hybrid system is hot
Do not remove the engine coolant radiator cap and power control unit cool-
ant reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

371
4-3. Do-it-yourself maintenance
4
Maintenance and care
Radiator and condenser
Check the radiator and condenser and clear away any foreign
objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have y our vehicle inspected by your Toyota dealer.
Brake fluid
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
CAUTION
■When the hybrid system is hot
Do not touch the radiators or condenser as they may be hot and cause seri-
ous injuries, such as burns.

5
When trouble arises
483
5-2. Steps to take in an emergency
■
Overheating
The following symptoms may occur when your vehicle is overheating:
●Hybrid system output decreases.
● Steam comes out from the engine area.
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.
● Check that on the multi-information display and the “READY” indi-
cator are off.
● For vehicles with a hybrid system, there are times when the gasoline
engine automatically starts to run or the cooling fans suddenly start to
operate. Do not touch or approach the rotating parts of the belt or fans.
Doing so may lead to fingers, clothes or tools getting caught, resulting\
in
injury.
● Do not loosen the radiator cap while the hybrid system and radiator are
hot.
Serious injuries, such as burns, may result from hot coolant and steam
released under pressure.

545
Alphabetical index
Luggage compartment light
Wattage ................................ 499
Luggage cover......................... 339
Maintenance Do-it-yourself maintenance ...................... 356
Emission inspection and maintenance (I/M)
programs ............................ 355
General maintenance ........... 351
Maintenance data ................. 490
Maintenance requirements ... 348
Meter Instrument panel light control ................................ 180
Meters .................................. 179
Microphone .............................. 293
Mirrors Inside rear view mirror ............ 94
Outside rear view mirror defogger ............................. 245
Outside rear view mirrors ....... 96
Vanity mirrors ....................... 330
Moon roof................................. 101
MP3 disc................................... 259
Multi-information display ....... 185
Noise from under vehicle ......... 16
Odometer ................................. 187
Oil
Engine oil.............................. 365
Opener Back door ............................... 71
Fuel filler door....................... 105
Hood ..................................... 360
Outside rear view mirrors
Adjusting and folding .............. 96
Defogger............................... 245 Outside temperature
display ....................................331
Overheating, Hybrid system ....................................480
Parking brake ...........................177
Parking lights Replacing light bulbs .............411
Switch....................................202
Wattage .................................499
Personal lights Switch....................................319
Wattage .................................499
Power outlet .............................333
“POWER” switch......................162
Power windows ..........................98
Radiator ....................................371
Radio .........................................252
Rear seat Folding down ...........................77
Rear turn signal lights Replacing light bulbs .............411
Wattage .................................499
Rear window defogger ............245
Rear window wiper ..................212
Reset the maintenance data ...349
Replacing Fuses ....................................400
Key battery ............................397
Light bulbs .............................411
Tires ......................................457
Reporting safety defects
for U.S. owners ......................524
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