2011 Toyota Prius Owners Manual - Page 325

3-1. Using the air conditioning system and defogger n The rear window and outside rear view mirror defoggers can be operated when The "POWER" switch must be in the ON mode. CAUTION n When the outside rear view mirror defoggers are on (vehicles with mirror defoggers) Do not touch the rear view mirror surfaces, as they can become very hot and burn you. 3 NOTICE n To prevent 12 volt battery discharge Turn the defoggers off when the hybrid system is not operating. Interior features 301 PRIUS_U (OM47685U) DVD