check engine TOYOTA PRIUS PHV 2012 Owner's Manual

465
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
4
Maintenance and care
■
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% cool- ant and 50% deionized water. (Minimum temperature: -31 F
[-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% cool- ant 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 radiator, 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 system.
CAUTION
■When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.

495
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47818U_(U)
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch off.
Vehicles with Solar Ventilation Sy stem: Turn the Solar Ventilation
System off and make sure not to operate the Remote Air Condi-
tioning System.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
When closing, first hook the lid
onto the two rear tabs.
Left side instrument panelRemove the lid.
After a system failure, see “Fuse layout and amperage rat-
ings” ( P. 498) for details about which fuse to check.
STEP 1
STEP 2
ITO43P127
STEP 3

604 5-2. Steps to take in an emergency
PRIUS PHV_OM_OM47818U_(U)
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 the indicator on the “POWER” switch and the “READY” indica-
tor are off.
● On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fans may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fans, 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.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem 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 commercially available coolant additives

614 6-1. Specifications
PRIUS PHV_OM_OM47818U_(U)
Electric motor (Traction motor)
Hybrid battery (traction battery)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when changing theengine oil. Warm up the engine and turn off the hybrid system, wait more
than 5 minutes, and check the oil level on the dipstick.
Ty p ePermanent magnet motor
Maximum output 60 kW
Maximum torque 153 ft•lbf (207 N•m, 21.1 kgf•m)
Ty p eLithium-ion battery
Voltage 3.7 V/cell
Capacity21.5 Ah
Quantity 56 cells
Overall voltage 207 V
Oil capacity
(Drain and refill 
reference
*)
With filter
Without filter
4.4 qt. (4.2 L, 3.7 Imp.qt.)
4.1 qt. (3.9 L, 3.4 Imp.qt.)

672 Alphabetical index
PRIUS PHV_OM_OM47818U_(U)
EngineAccessory mode.................... 240
Compartment ........................459
Hood......................................442
How to start the hybrid system ................................238
Identification number ............. 611
If the hybrid system will not start .....................................588
Ignition switch........................238
Overheating...........................600
“POWER” switch ...................238
Engine coolant Capacity ................................617
Checking ............................... 464
Preparing and checking before winter ....................... 349
Engine/power control
unit coolant Capacity ................................617
Checking ............................... 464
Preparing and checking before winter ....................... 349
Engine oil Capacity ................................614
Checking ............................... 460
Preparing and checking before winter ....................... 349
Enhanced VSC .........................328
EPS ............................................ 328
EV driving ratio indicator ........ 271
EV driving range ................58, 268
Event data recorder ...................25
EV/HV mode selection switch .......................................37 Floor mats ................................ 401
Fluid
Brake..................................... 619
Washer.................................. 469
Fog lights Replacing light bulbs ............. 507
Switch ................................... 298
Wattage................................. 620
Foot lights ................................ 382
Front fog lights
Replacing light bulbs ............. 507
Switch ................................... 298
Wattage................................. 620
Front passenger occupant classification system ............ 198
Front passenger’s seat belt reminder light ........................ 537
Front seats
Adjustment ............................ 146
Front side marker light Replacing light bulbs ............. 507
Wattage................................. 620
Front turn signal lights Replacing light bulbs ............. 507
Switch ................................... 254
Wattage................................. 620
Fuel Capacity ................................ 613
Fuel gauge ............................ 257
Information ............................ 621
Refueling ............................... 174
Type ...................................... 621
Fuel door .................................. 174
Fuel filler door .......................... 174
Fuses ........................................ 495F