Basically the title. Ever since I bought my car last year, I have never seen the spoiler go up by itself. Before anyone asks: Yes, I did go fast enough for it to activate. Yes, I am sure I haven't seen it pop up (I put a few pieces of paper in between the spoiler and the trunk and closed it, went for a drive reaching speeds north of 100 km/h and the paper was still there). That being said, what could be the problem?