What Causes the Tire Pressure Warning Light to Illuminate?
2 Answers
The reasons for the tire pressure warning light to illuminate are as follows: 1. The tire pressure monitoring light may come on due to a punctured tire. This situation usually involves very slow air leakage, making it difficult to immediately identify which tire is affected. In such cases, you can 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 accordingly and then monitor the warning light. If the light comes on again after a few days, it's necessary to remove the tire for inspection. 2. Sometimes, the tire pressure monitoring light may illuminate due to excessive tire pressure. According to the international standard GBT2978-2008, the recommended inflation pressures for car tires are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: should not exceed 3.5 bar. Therefore, if any tire exceeds 3.0 bar, it may trigger the tire pressure monitoring light. 3. Prolonged driving with low tire pressure can also cause the tire pressure monitoring light to come on. This typically occurs when a tire's pressure is too low, causing the tire temperature to rise during high-speed operation, which in turn increases the tire pressure. In such cases, it is advisable to stop and rest promptly or replace the tire with a spare one.
I was driving out when suddenly the tire pressure warning light came on, and my heart skipped a beat. Experience tells me the most common reason is insufficient tire pressure, such as a slow leak from a nail puncture or natural pressure drop due to a sudden temperature drop. I need to slow down and find a safe spot to stop and check, using a tire pressure gauge to measure each tire. If any are below the recommended value, I should inflate or change the tire immediately. Don't push it to avoid a blowout that could damage the car. It could also be a false alarm, like a dead sensor battery or a system software bug requiring a reset. Remember to always keep an air pump and emergency tools in the car, and check the tire pressure monthly to prevent many troubles. Taking care of these small details makes driving much safer.