2015 TOYOTA PRIUS radiator

435
4-3. Do-it-yourself maintenance
PRIUS_OM_OM47A17U_DVD_(U)
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.
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.
CAUTION
■When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause seri-
ous injuries, such as burns.

5
When trouble arises
561
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
If your vehicle overheats
Correction procedures■ If the high coolant temperatur e warning light comes on or
flashes
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The following may indicate that your vehicle is overheating.
●The high coolant temperature warning light ( P. 504) comes on
or flashes, or a loss of hybrid system power is experienced. (For
example, the vehicle s peed does not increase.)
● “HYBRID SYSTEM OVERHEAT” ( P. 525) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
STEP 1
STEP 2
STEP 3

562 5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.Reservoir
“FULL”
“LOW”
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system
on to check that the radiator cooling fans operate and to
check for coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Confirm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating: Stop the hybrid system im mediately and contact your
Toyota dealer.
If the fans are operating: Have the vehicle inspected at the nearest Toyota dealer.
ITO43P111
STEP 4
ITO52P130
STEP 5
STEP 6
STEP7

5
When trouble arises
563
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
■
If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The coolant level is satisfactory if
it is between the “F” and “L” lines
on the reservoir.Reservoir
“F”
“L”
STEP 1
STEP 2
STEP 3
STEP 4

636 Alphabetical index
PRIUS_OM_OM47A17U_DVD_(U)
MaintenanceDo-it-yourself maintenance ....................... 419
General maintenance ............ 414
Maintenance data.................. 572
Maintenance requirements.... 411
Maintenance data ..................... 412
Meter Instrument panel light
control ................................. 220
Meters ................................... 217
Speed unit select button........ 219
Trip information display ......... 232
Micro dust and pollen filter ..... 336
Microphone
*............................ 395
Mirrors Inside rear view mirror........... 119
Side mirror heater ................. 352
Side mirrors ........................... 123
Vanity mirrors ........................ 371
MP3 disc
*
Multi-information display ........ 226
Navigation system (refer to “NAVIGATION
SYSTEM OWNER’S MANUAL”)
Noise from under vehicle ..........22
Odometer .................................. 231
Oil
Engine oil .............................. 429
Opener
Back door ................................94
Fuel filler door ....................... 133
Hood...................................... 422
Outside rear view mirrors Adjusting and folding ............. 123
Outside rear view mirror
defogger switch ..................... 352 Outside temperature
display .................................... 372
Overheating .............................. 561
Parking brake ........................... 215
Parking lights
Switch ................................... 253
PCS ........................................... 308
Personal lights
Switch ................................... 361
Wattage................................. 582
Power outlets ........................... 373
“POWER” switch ..................... 195
Power windows ........................ 125
Pre-collision system ................ 308
Radar cruise control system .................................... 273
Radiator .................................... 435
Radio
*
Radio data system*
RDS*
Rear seats Adjustment ............................ 103
Folding down......................... 104
Rear turn signal lights
Replacing light bulbs ............. 478
Wattage................................. 582
Rear view mirror .............. 119, 123
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ............................... 352
Rear window wiper and washer .................................... 265
Remote Air C onditioning
System.................................... 348
M
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