This has happened probably 7-10 times over the last 6 months. It's more of a funny annoyance than a real problem, but my stupid sunroof will open ON ITS OWN completely randomly while I'm driving. I'm always on the highway driving over 60 when it happens, but other than that I've noticed no similarities between all the instances. Sometimes I've just started driving, sometimes I've been driving for an hour, sometimes I have the radio on, sometimes the windows are open... it's crazy! It's not the full sunroof, but the vent part that opens, and I usually close it right back, but yesterday it closed itself after about 10 seconds. My only concern is that I won't hear it open one day and it'll rain while my car is parked outside.