I'm wondering if "Auto" means the intermittent feature is automated. I don't know if the Lariat is equipped with auto detection wipers. I suppose the best way to solve this mystery is see what happens in the rain.That's what I've seen too. I know on the little dial I have a couple lines and I have a couple raindrops. So I don't know if you put it on one of the raindrops then it'll wipe according to how much rain. Or if it's just four different speeds. My Guess would be that the setting saying ntermittent or auto wipe means that that position would be for whichever one your vehicle is equipped with.
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