Why does the tire pressure monitoring system alarm when the tires are not low on air?

[MacAlivia]

Tire pressure alarms when the pressure is normal are mainly caused by the following situations: 1. Malfunction of the tire pressure sensor or receiver module: This is a relatively rare occurrence, as tire pressure monitors generally have good durability and their lifespan can usually match that of the vehicle. However, signal interference can sometimes occur, which may cause the tire pressure monitor to give false alarms. 2. The car quickly driving over uneven road surfaces: When the tires are impacted at high speed, the internal tire pressure may increase, especially when driving in summer. The thermal expansion and contraction of air can trigger the tire pressure alarm. 3. A punctured tire with very slow air leakage that is not visible to the naked eye: Sometimes, a tire may be punctured or experience slow air leakage due to aging. Such minor pressure fluctuations are usually not noticeable to people, but the tire pressure monitoring system can detect them.