auxiliary battery TOYOTA PRIUS PHV 2013 Owners Manual

40 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47787U_(U)
■Refilling fuel
Plug-in hybrid vehicles can be driven using electricity charged from an exter-
nal power source, however the gasoline engine that is provided on board as
an auxiliary power source and as a power source for driving in HV mode
needs to be filled with fuel. Check the fuel amount and refill immediately
when the fuel level becomes low. ( P. 174)
■ Gasoline engine operation in EV mode
Even if there is a sufficient amount of electricity remaining in the hybrid bat-
tery (traction battery) and EV driving range ( P. 58, 268) is being displayed,
the gasoline engine may operate automatically in the following circum-
stances (EV driving will be returned to automatically after EV driving
becomes possible again):
● When the heater etc. is in use.
● When the temperature of the hybrid system is high.
The vehicle has been left in the sun, driven on a hill, driven at high
speeds, etc.
● When the temperature of the hybrid system is low.
The vehicle has been left in temperatures lower than about 32 °F (0 °C)
for a long period of time etc.
● When power is needed temporarily, for example when accelerating sud-
denly.
● When vehicle speed is more than approximately 62 mph (100 km/h).
● When the accelerator pedal is depressed firmly or the vehicle is on a hill
etc.
● When the outside temperature is low (less than 14 °F [-10 °C])
The gasoline engine may also operate in circumstances other than those
listed above, depending on conditions.

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47787U_(U)
4
Maintenance and care
12-volt batter y
■Location
The 12-volt battery is located
in the right-hand side of lug-
gage compartment.
■ Removing the 12-volt battery cover
Open the center deck board. ( P. 403)
Remove the side deck board.
Remove the auxiliary box.
STEP 1
STEP 2
STEP 3