You have to take your eyes off the road for multiple seconds to turn the defogger/defroster on, as one example. Maybe there are studies to back it up too, but i

You have to take your eyes off the road for multiple seconds to turn the defogger/defroster on, as one example. Maybe there are studies to back it up too, but intuitively, this seems unsafe compared to turning a knob that you don't have to look at.