2012 Toyota Prius Owners Manual - Page 545

2-3. Operating the lights and windshield wipers Increases the intermittent windshield wiper frequency Decreases the intermittent windshield wiper frequency Washer/wiper dual operation The wipers will automatically operate a couple of times after the washer squirts. If the headlights are on, the headlight cleaner will operate once. 222 PRIUS v_U (OM47674U)