Ok thanks. Yeah, I will definitely keep an eye on it. No check engine light yet so I am not super-worried. From the comments it seems like it has to get fairly loud before the dealers will do anything about it.
I was just wondering if you could answer a quick question about your cylinder head problem. My '12 was built 9/2/2011, has about 3k miles on it. This morning I noticed a fairly loud ticking noise right at startup on the driver's side but it literally went away after 2 seconds or so. Is that sort of how your problem started?