As a car owner, you may have experienced the situation where the Tire Pressure Monitor Sensor (TPMS) light keeps coming on. It can be frustrating and concerning, especially if you don’t know why the warning light is on. In this article, we will discuss some of the reasons why the TPMS light may continue to illuminate and what you can do to resolve the issue.

The TPMS is a safety feature that monitors the air pressure of your car’s tires and alerts you if any tire is underinflated or overinflated. When the TPMS detects a deviation in the recommended tire pressure, it sends a signal to the dashboard and illuminates the TPMS warning light. This warning light is essential because driving with improperly inflated tires can result in increased risks of accidents, increased tire wear, and decreased fuel efficiency.

One common reason for the TPMS light to come on is a low tire pressure. Low tire pressure can be caused by a variety of factors, including a puncture, a small leak, or temperature changes. To fix the issue, you should check your tire pressure using a tire pressure gauge and refill any underinflated tire to the recommended PSI level. After adjusting the tire pressure, you should drive the car for a few minutes to allow the TPMS system to recalibrate and turn off the warning light.

If you have already checked and corrected the tire pressure but the TPMS light still comes on, the next possible reason is a faulty TPMS sensor. TPMS sensors are located inside each tire, and they transmit the tire pressure data to the car’s computer system. If one or more sensors are defective or malfunctioning, the TPMS warning light will continue to light up. In this case, you may need to replace the faulty sensor.

Another possible cause of the TPMS light staying on is a malfunctioning TPMS module or wiring. The module is responsible for receiving and processing the tire pressure data from the sensors and sending it to the vehicle’s computer system. If the module is not functioning correctly, it can cause the TPMS light to illuminate. Likewise, a wiring issue can also disrupt the sensor’s communication and trigger the warning light. If you suspect a problem with the module or wiring, it is best to take your car to a certified mechanic to diagnose and repair the issue.

Finally, one other factor that can cause the TPMS light to come on is a dead battery in the TPMS sensor. TPMS sensors use a battery to power the device, and the battery’s lifespan is typically five to ten years. Once the battery dies, it can no longer send signals to the car’s computer system, which triggers the warning light. If you suspect the battery is the problem, you may need to replace the TPMS sensor.

In conclusion, the TPMS warning light is an essential safety feature that helps ensure your tires are correctly inflated. If you notice that the TPMS light keeps coming on, you should check your tire pressure first and then inspect the sensors, module, and wiring for any defects. By fixing the underlying problem, you can help prevent tire-related issues and keep your car safe on the road.