Congress has approved new legislation that has put pressure on automotive manufacturers to integrate low-tire-pressure warning systems into new cars and trucks. Spurned on by the recent tire recalls and the belief that under-inflated tires can lead to accidents, lawmakers have given the National Highway Traffic Safety Administration one year to draft stan-dards for low-tire-pressure warning systems, and automakers would then be required to meet these standards over the next two years. The process of redesigning, retooling, and manufacturing instrument panels and/or overhead con-soles to accommodate new features and displays might take three to five years to complete. There are two ways to monitor tire pressure. One system involves installing sensors in each tire that monitor tire pressure and transmit the status via a radio-frequency signal to a driver display. A second system is tied into a vehicle’s anti-lock braking system and uses tire-rotation speed to determine inflation.