Tires operating below inflation standards put the overall performance of your vehicle and the safety of your passengers at risk. The Tire Pressure Monitoring System helps increase your safety on the road by improving your vehicle’s maneuverability, decreasing the tread wear of your tires, reducing your vehicle’s braking distance, and improving your vehicle’s fuel economy. There are two types of Tire Pressure Monitoring Systems in existence today—Direct and Indirect. A Direct Tire Pressure Monitoring System uses sensors on the inside tire assembly to transmit tire pressure information to your vehicle’s computer. An Indirect Tire Pressure Monitoring System gauges tire pressure through your vehicle’s Anti-lock Braking System (ABS) by using speed sensors to measure the rotational speed of each wheel (as tire pressure decreases, the rolling distance decreases, and the rotational speed increases). All TPMS systems require regular maintenance in order to meet maximum performance standards, which requires all vehicles to be equipped with a Tire Pressure Monitoring System.