Was researching a question I have about the rear hybrid battery and wanted to highlight the thread below at the same time. My question is about the rear air vent on the rear passenger-side seat- I wanted to drive with both seats down all the time for the dog (she's small and would make a flat surface that's more stable and higher), but I guess that's not possible. So tell me - can I do this: I usually drive from Wash DC to the Chicago (and back) area for vacations in the summer- obviously, it's hot. I'd have the AC on, but can I leave the seats down (vents blocked) for a 12-15 hour stretch? My guess is probably not. http://priuschat.com/forums/gen-iii...-dead-126000km-up-atleast-3-taxis-i-know.html Anyway, since it's getting warmer out, I thought I'd highlight this vent for the newbie owners like me.