My shiny new 2016 FFE developed a annoying metallic squeak after around 1K miles, and just this week at about 2K miles I finally took it to the dealer for diagnosis. After a week of work they finally replaced the left rear shock and shazam, squeak is gone. Funny thing about it was that when stone cold it wouldn't squeak, it needed 5-10 miles worth of exercise to warm up and start making noise. I was worried that because of that the dealer would blow it off as unpronounceable but kudos to them for sticking with it and hunting it down even if it took a few days.