[jimcol]

I have a 2006 and had a similar issue. Learned from this forum that the push button switches tended to go bad. Seems sitting on that exterior wall with no insulation behind the fixture it created the perfect condensation pit as temps changed. It's a pretty universal switch. I found replacements at a local Ace/Westlake store. Easy repair once you find the switch. You are correct they at 12volt DC fixtures.