2011 Toyota Prius Owners Manual - Page 314

3-1. Using the air conditioning system and defogger NOTICE n To prevent 12 volt battery discharge Do not leave the air conditioning system on longer than necessary when the hybrid system is not operating. n 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. 290 PRIUS_U (OM47685U) DVD