What causes the sudden display of abnormal tire pressure while driving?
2 Answers
The sudden display of abnormal tire pressure while driving is often caused by issues such as tire punctures. Below are the specific reasons for the tire pressure warning light to illuminate: 1. Tire puncture: A puncture can trigger the tire pressure monitoring light. This usually results in very slow air leakage, making it difficult to immediately identify which tire is affected. In such cases, use a tire pressure gauge to measure the pressure (front tires: 2.3 bar, rear tires: 2.5 bar). If the pressure is low, inflate the tire and then monitor the warning light. If it lights up again after a few days, a thorough tire inspection is necessary. 2. Overinflated tires: The standard tire pressure is 2.4-2.5 bar for standard tires and 2.8-2.9 bar for reinforced tires. The maximum tire pressure should not exceed 3.5 bar. Therefore, if any tire exceeds 3.0 bar, it will trigger the tire pressure monitoring light. 3. Prolonged driving with low tire pressure: When a tire's pressure is too low, high-speed driving increases the tire temperature, which in turn raises the tire pressure, causing the monitoring light to illuminate.
I've seen many friends encounter tire pressure warnings while driving. The most common causes are nails puncturing the tires or loose valve stems causing air leaks. Temperature changes are also a factor—cold weather in winter can easily lower tire pressure, while summer heat can cause it to spike. If the warning suddenly appears while driving, I immediately slow down and pull over, avoiding continued driving to prevent severe tire wear or even dangerous blowouts. Checking is simple: get out and kick each tire to see which one feels soft, or use a portable tire pressure gauge. Normal pressure values are usually marked on the door frame or in the owner's manual. Ignoring tire pressure issues not only increases fuel consumption but also leads to unstable handling, especially dangerous on highways. I recommend having a mechanic check the valves and tire condition during regular maintenance and making it a habit to manually check tire pressure monthly. Safety is no trivial matter—it's always best to address warnings promptly and not let small issues escalate into big problems.
