Toyota PRIUS 2014 Manual page 41

When continually using EV mode only
■
After driving for approximately 124 miles (200 km) with the gasoline engine
off, the gasoline engine may start for a short amount of time in order to pro-
tect the system.
Conditions in which the gasoline engine may not stop
■
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions
●
During gasoline engine warm-up
●
When the temperature of the hybrid battery (traction battery) is high or
low
●
During hybrid battery (traction battery) charging
●
When the heater is switched on
*
: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
If the vehicle is not used for a long time
■
The 12-volt battery may discharge. In this event, charge the 12-volt battery.
(P. 597)
In order to prevent the hybrid battery (traction battery) from becoming
extremely low in charge, start the hybrid system at least once every 2 or 3
months, and turn the "POWER" switch off after the gasoline engine has
stopped automatically. (If the gasoline engine does not start up even after
approximately 10 seconds have passed since the "READY" indicator came
on, the "POWER" switch can be turned to OFF without any further action.)
PRIUS PHV_OM_OM47856U_(U)
1-1. Plug-in hybrid system
*
:
1
41