In general, when the tire pressure monitoring light is on, it may be due to the following reasons: the tire is punctured, usually caused by an extremely slow air leak, and it may not be immediately possible to find out which tire is punctured. At this point, a tire pressure gauge can be used to measure it, and if a tire pressure is too low, it should be repaired or replaced in time.
Sometimes, when inflating the tire, if the unit is set incorrectly, it can cause abnormal tire pressure, so when the pressure of the tire exceeds the standard range, it will also cause the tire pressure monitoring light to turn on, and the tire pressure range of the standard tire is 24-2.5bar, reinforced tires have a tire pressure range of 28-2.9bar, the maximum air pressure should not be greater than 35bar。
In addition, after driving at high speed for a long time in summer, the tire temperature will rise, which will cause the tire pressure to riseOr park the vehicle for a long time without inflating the tires, causing the tire pressure to be too low alarm, etc.
Another possibility is a faulty tire pressure sensor.
An on-tre pressure monitoring light doesn't necessarily require a tire change.
If this light is caused by abnormal tire pressure, it may be caused by tire studs, air leaks, tire pressure that is too high or too low, tire pressure sensor malfunction, etc. You can overhaul it yourself, if you have a tool with the car, you can test each tire pressure, and if you can eliminate the fault, you can do it yourself, if you can't eliminate it, you should send it to overhaul as soon as possible.
Whether or not a tire needs to be replaced depends on the specific cause of the failure and the extent of damage to the tire.
If the tire is badly damaged or beyond repair, then it may be necessary to replace the tire. However, if the problem is only due to abnormal tire pressure, then it is only necessary to adjust the tire pressure or fix the leak problem.