I have actually read all 320 pages of the manual for my new Prius BC (well, OK, I skipped a few pages) and looked through most of the Navigation System manual. Anyway, I never found a listing of the voice commands. I say things like "reduce heat" and it comes back with "lowering volume of the radio" or "turning screen off" or something else mostly irrelevent. I know one must use the correct commands, but what are they? I know there is a list of them on the screen in the car, but do I have to sit there and write them all down? Someone must have created a "cheat-sheet" of commands. If so, how can I get it? Thanks, Norm ("Benevento") 2005 Prius BC, with all of 80 miles on it.