What to Do When Tire Pressure is Normal but Shows Abnormal?
2 Answers
Tire pressure is normal but the tire pressure warning light is on. This could be due to a puncture detected by the tire pressure sensor, causing the tire pressure monitoring light to stay on. It might also be because the tire pressure was previously too high or too low, and after adjusting the pressure, the tire pressure settings were not reset, leading to the light remaining on. Another possibility is a malfunction in the tire pressure sensor causing the light to illuminate. Generally, there are three main reasons for abnormal tire pressure indications: Abnormal Tire Pressure: The system usually alerts when the pressure is below 1.8 bar or above 3.0 bar. In such cases, inspect the tires and adjust the pressure accordingly. Tire Pressure Monitoring Not Reset: After inflating the tires, if the tire pressure monitoring system is not reset, it continues to display the old data, causing the warning light to stay on. Simply reset the tire pressure monitoring system to resolve this issue. Damaged Tire Pressure Sensor: The tire pressure sensor, which monitors tire pressure, is installed inside the tire and connected to the inflation valve. If the sensor is damaged during driving, perhaps due to impact, the tire pressure warning light may illuminate. In case of sensor damage, the only solution is to replace it with a new one.
I often encounter situations where the tire pressure display shows abnormalities but the actual pressure is normal while driving, which could be due to sensor issues. A dead sensor battery may trigger false alarms, or the system might need a reset. Last time I was on a business trip on the highway, the dashboard flashing red startled me, so I immediately pulled over and used a portable pressure gauge to check each tire—all were fine. I tried holding down the TPMS button in the car for a few seconds to reboot the system, and after driving for a while, it returned to normal. If the problem persists, it might be a hardware issue like a damaged sensor, requiring a mechanic to inspect and replace it. Safety should never be taken lightly—false alarms can make people complacent. I recommend regularly using a pressure gauge to self-check tire pressure against the displayed data, preventing faults before they cause trouble. I always keep a pressure gauge in my car—it’s simple and worry-free.
