What causes the tire pressure warning due to overheating tires?
2 Answers
The reason for tire overheating is that the car tire is overinflated, leading to high tire pressure. Hot weather causes gas expansion, which increases tire pressure. Prolonged driving generates heat through friction, raising tire pressure. Aging and wear of suspension components related to the wheels can cause misalignment of the tires, leading to uneven wear, higher temperatures, and increased tire pressure. Solutions for overheated tires: When tires overheat, the car should be stopped to allow them to cool down. It is important not to pour cold water on the tires, as this can cause cracks and shorten the tire's lifespan. Tires heat up after prolonged high-speed driving, so a slight increase in temperature and inner tire pressure is normal. During rolling, tires consume energy, part of which is absorbed and converted into heat. If the heat is not dissipated in time, the tire temperature rises. Excessive temperature increases (above 95°C) can cause tire delamination and even tire blowouts. How tire pressure monitoring works: Tire pressure monitoring systems can be divided into two types based on their working principles: active tire pressure monitoring and passive tire pressure monitoring. The former works by setting a tire pressure value and triggering an alarm when the tire pressure is too low or there is a leak. The latter monitors tire pressure by detecting tire rotation speed, as underinflated tires rotate faster than normal tires. The role of tire pressure in cars: Tire pressure, strictly speaking, refers to the pressure of the air inside the tire. Nowadays, many tires are filled with gases other than air. For these tires, tire pressure requirements are more stringent. For tires filled with air, pressure varies with seasonal changes. Tire pressure is closely related to a car's performance, affecting comfort, load capacity, and tire lifespan.
I've encountered tire overheating and pressure warnings quite a few times, with various causes: The most common is prolonged high-speed driving, where friction heats up the tires, increasing internal pressure and triggering the tire pressure monitoring system; hot summer weather or high road temperatures can exacerbate the issue; incorrect tire pressure, such as being too low, causes more deformation and friction, leading to rapid heat buildup; overloading, like a full backseat or packed trunk, increases the tire's burden and overheating risk; aged or severely worn tires with poor heat dissipation are also prone to triggering warnings. It's advised to pull over immediately, let the tires cool, then check the pressure. Avoid continuing at high speeds, as the risk of a blowout increases. Safety first—ensure the vehicle is turned off and cooled down before resuming your journey.