2010 Toyota Prius Owners Manual - Page 388
2010 Toyota Prius Manual
Page 388 highlights
3-4. Using the interior lights Personal/interior light main switch Personal/interior light main switch Type A "OFF" The personal/interior lights and interior light can be individually turned on or off. Door position The personal/interior lights and interior light automatically turn on/ off according to the presence of the electronic key, whether the doors are locked/unlocked, whether the doors are opened/ closed, and the "POWER" switch mode. Type B On The personal/interior lights and interior light cannot be individually turned off. ITO34P102 364