Tire Pressure Monitoring System (TPMS)
A Tire Pressure Monitoring System (TPMS) is an electronic system designed to monitor the air pressure inside the pneumatic tires on cars, trucks, and SUVs. The TPMS will report real-time tire pressure information to the driver, either through a gauge, display, or low pressure warning light.
The goal of TPMS is to help avoid traffic accidents, poor fuel economy, and increased tire wear due to under-inflated tires. Due to the influence tire pressure has on vehicle safety and efficiency, the United States government passed the Transportation Recall Enhancement, Accountability, and Documentation (TREAD) Act. As a result, most vehicles sold in the United States since 2007 include a tire pressure monitoring system.