Tire pressure sensors, also known as TPMS (Tire Pressure Monitoring System) sensors, play a crucial role in ensuring vehicle safety and efficiency by monitoring tire pressure and alerting drivers to any issues. However, these sensors can fail over time due to various reasons such as battery depletion, corrosion, or mechanical damage. Identifying a faulty TPMS sensor is essential to maintain optimal vehicle performance and prevent potential hazards. In this article, we will explore the symptoms of a bad TPMS sensor, methods to diagnose the issue, and steps to replace a faulty sensor.