TPMS, Tire Pressure Monitoring System, is an electronic system that alerts you with a dashboard indicator light when your car's tire pressure falls to the point of needing inflation. TPMS notifies you when your vehicle's tire pressure is low or is going flat. By helping you maintain proper tire pressure, TPMS can increase your safety on the road by improving your vehicle's handling, decreasing tire wear, reducing braking distance and bettering fuel economy.