What are the reasons for high tire pressure monitoring alerts?
2 Answers
High tire pressure monitoring alerts are caused by over-inflation or prolonged high-speed driving leading to an increase in tire temperature. In such cases, it is necessary to stop and check to ensure driving safety. Excessive tire pressure can cause steering wheel vibration and deviation, reducing driving comfort; while insufficient tire pressure increases the movement of various parts of the tire, leading to abnormal heat generation due to excessive rolling. The tire pressure monitoring sensor utilizes the existing sensing function of ABS to compare the number of rotations of the tires. A tire with insufficient pressure will have a shorter circumference, and if one of the four tires has insufficient pressure, its rotation count will differ from the others during driving.
I've encountered the high tire pressure monitoring alert several times. The main reason is that the actual tire pressure is indeed too high, such as when you've just inflated the tires without following the manufacturer's recommended values and filled them to the maximum. Additionally, rising external temperatures can also increase tire pressure, especially during summer driving when higher temperatures cause the air to expand, potentially triggering the tire pressure monitoring alarm. If the sensor itself malfunctions, such as when the battery is low or the sensor is misaligned, it can also falsely report high tire pressure. Another factor is load impact—carrying too much weight in the car increases pressure, making the tire pressure appear high. If not addressed promptly, excessively high tire pressure can accelerate tire wear or even lead to a blowout. So, I usually check the actual pressure first with a tire pressure gauge. If it's not high, it might be a system issue, and I quickly head to the shop for a check-up. Maintaining it properly saves a lot of hassle.
