@BeyondtheRainbow - if it helps any, my guys over at Firestone told me that the light comes on for the tire every time it gets really cold or really hot. The change in temperature can mess with the computer so the tire might not even be low. I had gone back to them a few times and they checked it for me, and nothing was wrong, and the light eventually comes off by itself. Mine does that a lot this winter it would come on and off every time it dips below 30 degrees and by the middle of the day when the sun heats things up it comes off.. My car light doesn't show which one is the low tire either which is very frustrating too.