Toyota 2013 Prius Owner's Manual page 35

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.
CAUTION
While driving
■
Because there is no engine noise when the vehicle is being driven using the
electric motor, pedestrians in the vicinity may not notice the vehicle. Even
though the vehicle is equipped with the vehicle proximity notification system,
drive with care as pedestrians in the vicinity may still not notice the vehicle if
the surrounding area is noisy.
PRIUS PHV_QG_OM47788U_(U)
4. Things you must know
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35