2012 Toyota Prius Owners Manual - Page 1076

2-3. Operating the lights and windshield wipers U.S.A. (type C) The daytime running lights turn on. The side marker, parking, tail, license plate, daytime running lights and instrument panel lights turn on. The headlights and all the lights listed above (except daytime running lights) turn on. (if equipped) 2 When driving The headlights, parking lights, daytime running lights and so on turn on and off automatically (when the "POWER" switch is in ON mode). 215 PRIUS v_U (OM47784U)