Recently under hard breaking my traction control light flashes up, and the display cycles service ECS and Trac, then it keep on saying ECS and TRAC off. the brake light comes on once for 2 sec, and then shuts back off. I checked my break fluid, and it looks fine. any idea on why it's doing this? I spoke with some other members on GM forum, and they mention that the ABS might be taking a sh** on me, but the car drives fine it does feel a bit different, ( always drive with traction control off). I never had the ESC off. is this a huge concern?