I had the same issue when going over speed bumps. I took it in yesterday and they confirmed the lower control arm was bad on the left side. They're replacing both the fronts with the "improved" LCAs under warranty. This issue is pretty common from what I've read on this forum. I'll post up how everything looks and sounds after the install them later this week.
My noise was coming from the front end, no rear end clunks. You can always do the CPR test on your struts, and if they make a bunch of noise when you press down on each front strut then those may be the issue. Could also be a bad LCA bushing or a Swaybar end link, take it in and let them figure it out under warranty