2012 TOYOTA PRIUS PHV radiator

600
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(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. 534) 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. 552) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
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2 ÉTAPE
STEP 3

5
When trouble arises
601
5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(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.
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STEP 4
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STEP 5
6 ÉTAPE
STEP7

602 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(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

675
Alphabetical index
PRIUS PHV_OM_OM47818U_(U)
Odometer ................................. 257
Oil
Engine oil.............................. 460
Opener Back door ............................. 140
Fuel filler door....................... 174
Hood ..................................... 442
Outside rear view mirrors Adjusting and folding ............ 169
Outside rear view mirror defogger switch .................... 375
Outside temperature
display ................................... 394
Overheating ............................. 600
Parking brake .......................... 255
Parking lights Switch ................................... 292
PCS ........................................... 335
Personal lights Switch ................................... 383
Wattage ................................ 620
Plug-in hybrid system Driving tips.............................. 67
EV driving range ..................... 58
EV mode................................. 35
EV/HV mode selection
switch ................................... 37
Features ................................. 32
How to charge ........................ 80
HV mode ................................ 36
Plug-in Hybrid Applications .... 70
Power outlets........................... 395
Power sources........................... 77
“POWER” switch ..................... 238
Power windows ....................... 171
Pre-collision system ............... 335 Radar cruise control
system ....................................312
Radiator ....................................466
Radio
*
Radio data system*
RDS*
Rear seats
Adjustment ............................149
Folding down .........................150
Rear turn signal lights Replacing light bulbs .............507
Wattage .................................620
Rear view mirror...............166, 169
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ...............................375
Rear window wiper and
washer ....................................304
Remote Air C onditioning
System ....................................371
Replacing
Electronic key battery ............493
Fuses ....................................495
Light bulbs .............................507
Tires ......................................448
Reporting safety defects for U.S. owners ............................650
O
P
R
*: Refer to “Display Audio System Owner’s Manual” or “Navigation System Owner’s Manual”.