Why is there a prompt to calibrate tire pressure?
3 Answers
Car tire pressure calibration refers to the tire pressure monitoring system alerting when there is an issue with tire pressure. It continuously monitors tire pressure in real-time while driving and alerts the driver in case of air leakage or low pressure to ensure driving safety. There are three common types of tire pressure monitoring methods: Direct Tire Pressure Monitoring: Direct tire pressure monitoring devices use pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the pressure data for each tire. The system automatically alerts when the tire pressure is too low or there is a leak. Indirect Tire Pressure Monitoring: When the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that tire to become smaller, making it rotate faster than the other wheels. By comparing the differences in rotational speed between tires, the system monitors tire pressure. Indirect tire pressure monitoring systems essentially rely on calculating the rolling radius of the tires to monitor pressure. Introduction to Tire Pressure Monitoring System (TPMS): This system combines the advantages of both the above systems. It is equipped with direct sensors in two diagonally opposite tires and a four-wheel indirect system. Compared to a full direct system, this hybrid system reduces costs and overcomes the limitation of indirect systems, which cannot detect when multiple tires simultaneously have low pressure. However, it still cannot provide real-time pressure data for all four tires like a direct system.
After driving for so many years, whenever that tire pressure warning light on the dashboard comes on, I know there might be a safety hazard. Low tire pressure can cause tires to overheat and deform, making them prone to blowouts at high speeds, which is extremely dangerous. Insufficient pressure also affects braking performance, makes the car unstable when turning, and increases the risk of skidding in rainy conditions. I remember one winter when I was on a long drive, the temperature suddenly dropped, and the tire pressure decreased abruptly—the car felt so unstable that I nearly had an accident. That’s why I always stop to check as soon as the light comes on. It’s best to carry a portable tire pressure gauge, measure each tire, and adjust according to the manufacturer’s recommended values on the door frame. Regular checks not only save lives but also reduce wear and tear, extending tire life by a year or two. Safety first—don’t wait for small issues to turn into big problems.
The tire pressure monitoring system is actually quite smart. It detects air pressure changes through sensors installed inside the tires for real-time monitoring. If your tire pressure gets too low or high, the system sends a signal to the computer, and the dashboard warning light comes on to indicate correction is needed. This system is significantly affected by temperature - hot summer air causes pressure to rise from expansion, while cold winter temperatures make pressure drop. Sometimes slow leaks or punctures from nails can also trigger it. Correction is simple: just visit an air station, check if the pressure is within the recommended range, and adjust accordingly. Frequently ignoring these warnings can lead to increased fuel consumption and accelerated tire wear. Developing a monthly check-up habit saves fuel and gives peace of mind. Plus, your car will drive much more smoothly.
