So yesterday at lunch my 2010 lmm decided to give me a bunch of warning lights at once. The ABS light, Check Trailer Brake System, Check Traction Control, and Check Stabiltrak all came on at the same time and have stayed on. I am thinking it could be a bad Wheel Speed Sensor. Has anyone else had this happen or heard of it? I am going to work on it this weekend, but would like to have some opinions on where to start.