A tire pressure monitoring system (TPMS) is an electronic system that monitors the air pressure in a vehicle’s tires. TPMSs are designed to alert the driver when the tire pressure is low, which can help to prevent accidents and improve fuel efficiency.
There are two main types of TPMSs: direct and indirect. Direct TPMSs use sensors that are mounted inside each tire. These sensors measure the tire pressure and send the information to a receiver in the vehicle. Indirect TPMSs use the vehicle’s wheel speed sensors to estimate the tire pressure.