That's how mine started, now it is red all the time. I have new brake pad sensors and plenty of pad left (on all corners). When I drive through a big puddle the light will go out for a second. I was told to check for a short (or an open I guess you would call it) in my guage cluster, but it all looks perfect. All of the wiring, that goes to the sensors on the left front and right rear, looks fine. The break pads are good and the the break lining light goes on and off by itself. The breaks work fine. Someone told me that the 'motherboard' should be fixed/replaced to cure this problem. Where is the motherboard located? Would it possible that the SI board battery is no longer working correctly? Please share your experience on this matter. TIA M3andM3