2016 TOYOTA PRIUS V hybrid cooling

5448-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
The coolant level is satisfactory if it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
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 immedi-
ately 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 con-
ditioning system on and off repeatedly. (The fans may not operate in
freezing temperatures.)
If the fans are not operating:
Stop the hybrid system immediately and contact your Toyota
dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Toyota dealer.
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5458-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
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When trouble arises
■If the hybrid system overheat warning light comes on or the
warning message indicating overheat is shown on the multi-
information 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” line
“L” line
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
If water was added in an emer-
gency, have the vehicle
inspected at your Toyota dealer
as soon as possible.
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5468-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system and check for the instrument clus-
ter or multi-information display.
If the hybrid system overheat warning light does not turn off or
the message does not disappear:
Stop the hybrid system and contact your Toyota dealer.
If the hybrid system overheat warning light does not come on or
the message is not displayed:
The hybrid system temperature has dropped and the vehicle may
be driven normally.
However, if the warning light comes on again frequently or the message
appears again frequently, contact your Toyota dealer.
WARNING
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
●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.
●After the hybrid system has been turned off, check that the indicator on the
power switch and the “READY” indicator are off.
When the hybrid system is operating, the gasoline engine may automati-
cally start, or the cooling fan may suddenly operate even if the gasoline
engine stops. Do not touch or approach rotating parts such as the fan,
which may lead to fingers or clothing (especially a tie, a scarf or a muffler)
getting caught, resulting in serious injury.
●Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
High temperature steam or coolant could spray out.
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5478-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
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When trouble arises
NOTICE
■When adding engine/power control unit coolant
Add coolant slowly after the hybrid system has cooled down sufficiently.
Adding cool coolant to a hot hybrid system too quickly can cause damage to
the hybrid system.
■To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
●Do not use any coolant additive.

PRIUS v_OM_OM47B12U_(U)
5579-1. Specifications
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Vehicle specifications
Cooling system
Capacity
Gasoline
engine7.3 qt. (6.9 L, 6.1 Imp.qt.)
Power
control unit2.9 qt. (2.7 L, 2.4 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-
based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system (spark plug)
MakeDENSO SC20HR11 or SC16HR11
Gap0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system
12-volt battery
Open voltage at 68F (20C):
12.0 V or higher
If the voltage is lower than the standard
value, charge the battery.
(Voltage is checked 30 seconds after the
hybrid system and all lights are turned off.)
Charging rates4.2 A max.

606Alphabetical index
PRIUS v_OM_OM47B12U_(U)
Child-protectors....................... 123
Cleaning
Aluminum wheels.................. 407
Exterior ................................. 406
Interior................................... 410
Panoramic roof ..................... 409
Radar sensor ................ 226, 258
Seat belts .............................. 411
Climate remote control ........... 371
Clock ................................... 92, 386
Condenser ................................ 433
Console box ............................. 377
Coolant
Capacity ................................ 557
Checking ............................... 431
Preparing and checking
before winter....................... 263
Cooling system ........................ 431
Hybrid system overheating ... 543
Consumption screen ............... 108
Cruise control
Cruise control........................ 210
Dynamic radar cruise
control................................. 214
Warning messages ............... 506
Cup holders.............................. 378
Curtain shield airbags ............... 41
Customizable features ............ 575Daytime running light
system.................................... 192
Defogger
Outside rear view mirrors ..... 366
Rear window ......................... 366
Windshield ............................ 366
Dimension ................................ 552
Dinghy towing.......................... 173
Display
Drive information .................. 102
Dynamic radar cruise
control ................................ 214
Energy monitor ............. 102, 108
LDA (Lane Departure
Alert)................................... 227
Multi-information display ....... 100
Trip information....................... 94
Warning messages ............... 503
Do-it-yourself maintenance .... 419
Door courtesy lights ............... 373
Location ................................ 373
Wattage ................................ 560D