Toyota Prius V 2012 Quick Reference Manual page 64

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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
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During gasoline engine warm-up
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When the temperature of the hybrid battery (traction battery) is high or
low
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During hybrid battery (traction battery) charging
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When the heater is switched on
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: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
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Charging the hybrid battery (traction battery)
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As the gasoline engine charges the hybrid battery (traction battery), the
battery does not need to be charged from an outside source. However, if
the vehicle is left parked for a long time the hybrid battery (traction bat-
tery) will slowly discharge. For this reason, be sure to drive the vehicle at
least once every few months for at least 30 minutes or 10 miles (16 km).
If the hybrid battery (traction battery) becomes fully discharged and you
are unable to jump-start the vehicle with the 12-volt battery, contact your
Toyota dealer.
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If the shift position is in N, the hybrid battery (traction battery) will not be
charged. Always shift the shift position in P when the vehicle is stopped.
When driving in heavy traffic, operate the vehicle with the shift position in
D or B to avoid discharging the hybrid battery (traction battery).
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Charging the 12-volt battery
→P. 484
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After the 12-volt battery has discharged or has been changed or
removed
The gasoline engine may not stop even if the vehicle is running on the hybrid
battery (traction battery). If this continues for a few days, contact your Toyota
dealer.
PRIUS v_U (OM47784U)
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I n f o r ma t i o n P r o v i d e d b y :
1-1. Hybrid system
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