Out of the blue I will get the tire pressure indicator saying "inactive". All the tire pressures will be fine and it does not say low pressure for any tire, it just says inactive. I can usually get it to reset but the indicator light will stay on for a little bit, then go out. All the tires and pressure sensors were replaced a few years ago. It seems like it happens when its cold out and only every once in a while, but too often for my liking. Does any body have any ideas?