My tpms light is been on for the past year. Yesterday it started to blink for the first time and this morning cleared itself. When I got of work today it started to blink again for about ten minutes and then it cleared again. I was under the impression that once the sensors go bad the only way to get rid off the light was to replace all the bad sensors. I did some research and found no explanation or possible causes. Can anyone shared some light on this?