What Are the Reasons for Tire Pressure Warning Without Air Leakage?
2 Answers
Tire pressure warning without air leakage can be caused by: 1. Overinflated tires; 2. Driving for an extended period with low tire pressure; 3. Prolonged lack of inflation leading to decreased tire pressure. Tire pressure warnings generally fall into two categories, which can be simply understood as direct tire pressure monitoring and indirect tire pressure monitoring. Direct tire pressure monitoring involves installing a pressure sensor inside the vehicle's tire to directly monitor the internal tire pressure. Once a signal is detected by the pressure sensor, it is sent to the receiving module of the tire pressure monitoring system. The processed signal then displays simulated values on the installed tire pressure monitoring dashboard—any such issue will definitely show numerical values. Indirect tire pressure monitoring refers to obtaining a simulated tire pressure signal by comparing the wheel speed sensor signals of the vehicle's tires to detect differences in wheel speed among them.
I've been driving for over a decade and often encounter false tire pressure warnings when there's no actual leak. The most common cause is significant weather changes—like daily temperature swings of over 10°C—which make tire pressure fluctuate and trigger sensor errors. Another issue is aging sensor batteries; these typically last only a few years before needing replacement. Sometimes, alarms go off after tire changes or inflation if the system isn’t reset. Once on the highway, prolonged bumps triggered the light, and it turned out the sensor was misaligned. Now, when the warning lights up, I first check with a portable pressure gauge. If readings are normal, I visit the shop for a system reset. Never ignore small alerts—they can escalate into major risks. Safety comes first.
