I have a 2008 Limited that does one swipe of the front wipers on startup. This only seems to occur when the temp is in the 30's and just once on initial startup for the day. I couldn't find anything in the manual about moisture sensitive wipers and it does it with or without dew on the windshield. Anybody else see this happening?
Hahaha, Finally someone else posts this question. Mine does the same thing. I thought I was going crazy when it first happened. Same thing though, only when cold, one swipe, first start of the day. I've learned to live with it. I figured seeing as it doesnt do it all the time, it would NEVER do it for the dealer and they would send me on my way with the "functions as normal" line.
My guess would be maybe the cold causes the battery to discharge slightly and PCM does a slight reboot. In fact I've noticed that sometimes my factory NAV does a reset of sorts. I will lose my previous destinations and speed volume setting but nothing else.
FREEWAY, that was the first thing I looked at when it happened but the wipers were set to off.
Matt