[Monzsta]

Yeah, the systems suck. Got a rash of vehicles coming in for the light being on due to the temperature drop. Funny thing is, the system was designed to alert the driver of a low tire pressure situation. Put air in the tires, light goes out. Simple. But the current crop of drivers come flocking to the dealership everytime a light illuminates on the dash. Gah.

Try overfilling the tires by 5 psi, then go drive the car up to 40+ mph. The sensors work wirelessly, and have a centrifugal switch for battery life. The tools to properly diagnose these little bastards are expensive, so it might be worth while to bring the car to the dealer if you can't get the light out on your own. The Tire Pressure Monitering System may have a software update needed, or it could be something else entirely.