What does it mean when the car tire pressure warning light comes on?
2 Answers
The reasons for the car tire pressure warning light coming on are: 1. Slow tire air leakage; 2. Flat tire; 3. Gap between the tire and the wheel rim. The solutions for the car tire pressure warning light coming on are: 1. Check the dashboard tire pressure and temperature display to observe if there are any abnormalities in tire pressure or temperature; 2. Check if the underinflated tire has an air leak; 3. Inspect whether the tire pressure monitoring system is malfunctioning. The functions of the car tire pressure warning system are: 1. Preventing accidents; 2. Extending tire service life; 3. Reducing wear on the suspension system. Tire pressure refers to the air pressure inside the tire, and a monitored value between 2.2 and 2.5 bar is considered normal.
As a mechanic who deals with tires every day, common tire pressure warning issues can be categorized into several types: The most frequent is slow leaks caused by nails puncturing the tire, triggering an alarm when the pressure drops below 2.0. Seasonal temperature changes have the most significant impact—like last week's sudden cold snap, where seven out of ten cars had warning lights on in the morning, with tire pressure generally dropping by about 0.3 bar. Wheel rim deformation leading to poor sealing is also common, especially for vehicles that hit potholes at high speeds. Sensor battery depletion or interference causing false alarms accounts for about 15% of cases, but you should never cover the warning light with tape as a fix—last year, a customer did this, and the tire wore down until the steel belts were exposed. If the light comes on, check the tire pressure immediately. If no obvious leak is found, drive straight to a repair shop for inspection.
