Toyota Prius, Manual

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1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47831E_(EE)

Regenerative braking
In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the recharging of the
hybrid battery (traction battery).

The accelerator pedal is released while driving with the shift position in D
or B.

The brake pedal is depressed while driving with the shift position in D or
B.
 EV driving range
 The EV driving range is displayed on the energy monitor and the Hybrid
System Indicator. (

P. 73, 308)
 The EV driving range changes in accordance with the charge status of
the hybrid battery (traction battery), the speed of the vehicle, etc.
 After EV mode has switched to HV mode due to low hybrid battery
(traction battery) charge
If the hybrid battery (traction battery) is regenerated by driving continuously
down a long slope, the EV driving range will be displayed on the multi-infor-
mation display and EV mode will be automatically switched to.
If EV mode is not switched to even though EV driving range is being dis-
played, EV mode can be switched to by pressing the EV/HV mode selection
switch.
 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. 185)