All new cars and light trucks since 2008 have come equipped with a tire pressure monitoring system called TPMS. The TPMS system detects when a tire becomes under-inflated and initiates a warning light on the dash. TPMS is no substitute for regularly checking your tire pressure at least once a month.
An under-inflated tire can be a major safety concern for everyone. First, such tire will not handle properly, which can lead to an accident. Second, an under-inflated tire can overheat and come apart, which can also lead to an accident. Government regulations require TPMS systems to help reduce accidents and save lives.
There are also environmental effects from an under-inflated tire. You lose 1% of your fuel economy for every three pounds of pressure below the recommended amount.
There are two types of TPMS systems, direct and indirect systems. Direct systems have a battery-powered sensor in each wheel that measures tire pressure. The sensor sends a signal to a receiver to illuminate the low-tire-pressure warning light on the dash. Indirect systems use a computer program to detect under-inflation by measuring wheel rotation speed and other data.
Sensor batteries become depleted and road salt and grime can damage sensors. You must replace TPMS parts as they wear out and we may also recommend replacing whenever you change your tires. After the tire change or tire rotation, we can reset the system for you.