2015 TOYOTA PRIUS PLUG-IN HYBRID radiator

471
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(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
607
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(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. 538) 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. 557) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
1 ÉTAPE
2 ÉTAPE
STEP 3

608 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(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
6 ÉTAPE
STEP7

5
When trouble arises
609
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47A11U_(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

683
Alphabetical index
PRIUS PHV_OM_OM47A11U_(U)
Odometer ................................. 278
Oil
Engine oil.............................. 465
Opener Back door ............................. 144
Fuel filler door....................... 178
Hood ..................................... 448
Outside rear view mirrors Adjusting and folding ............ 173
Outside rear view mirror defogger switch .................... 381
Outside temperature
display ................................... 400
Overheating ............................. 607
Parking brake .......................... 260
Parking lights Switch ................................... 297
PCS ........................................... 340
Personal lights Switch ................................... 389
Wattage ................................ 628
Plug-in hybrid system Driving tips.............................. 68
EV driving range ..................... 58
EV mode................................. 35
EV/HV mode selection
switch ................................... 37
Features ................................. 32
How to charge ........................ 85
HV mode ................................ 36
Plug-in Hybrid Applications .... 75
Power outlets........................... 401
Power sources........................... 82
“POWER” switch ..................... 242
Power windows ....................... 175
Pre-collision system ............... 340 Radar cruise control
system ....................................317
Radiator ....................................471
Radio
*
Radio data system*
RDS*
Rear seats
Adjustment ............................153
Folding down .........................154
Rear turn signal lights Replacing light bulbs .............511
Wattage .................................628
Rear view mirror...............170, 173
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ...............................381
Rear window wiper and
washer ....................................309
Remote Air C onditioning
System ....................................377
Replacing
Electronic key battery ............497
Fuses ....................................499
Light bulbs .............................511
Tires ......................................454
Reporting safety defects for U.S. owners ............................658
Resetting the message indicating maintenance is
required ..................................437
O
P
R
*: Refer to “DISPLAY AUDI O SYSTEM OWNER’S MANUAL”
or “NAVIGATION SYSTEM OWNER’S MANUAL”.