A tire pressure monitoring system (TPMS) is an electronic system designed to monitor the air pressure inside the pneumatic tires on various types of vehicles. TPMS monitors the actual air pressure inside each tire via a sensor mounted within the tire behind the air valve. TPMS report real-time tire-pressure information to the driver of the vehicle, either via a gauge, a pictogram display, or a simple low-pressure warning light (which is to represent a flattened tire with exclamation point).
These systems were created for the luxury lines, with the first passenger vehicle to adopt it was the Porsche 959 in 1986. Since then, the system has proven that it can help you avoid traffic accidents due to under-inflated tires by early recognition of the malfunction of tires. It also increases overall fuel efficiency.