Toyota Prius 2011 Manual page 290

3-1. Using the air conditioning system and defogger
NOTICE
To prevent 12 volt battery discharge
■
Do not leave the air conditioning system on longer than necessary when the
hybrid system is not operating.
To prevent damage to the Plasmacluster™
■
Do not insert anything into the driver's side vent, attach anything to it, or use
sprays around the driver's side vent. These things may cause the system
not to work properly.
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