What is tire pressure loss?
2 Answers
Generally, there are three reasons for tire pressure loss. The first is related to load capacity. The second is related to seasonal changes. The third is related to tire specifications. Tire Pressure Reset: Tire pressure reset refers to the operation of resetting the tire pressure monitoring system after addressing a tire pressure malfunction. Tire Pressure Reset Method: First, turn on the ignition switch, then press and hold the tire pressure monitoring reset button until you hear a "ding" sound before releasing it. The tire pressure monitoring system will then store the current normal tire pressure data, automatically clear the previous data, and finally, the warning light on the dashboard will turn off, indicating the completion of the tire pressure reset.
Tire pressure loss can be a minor or major issue. In most cases I've encountered, it's caused by a puncture—a tiny screw can lead to slow air leakage, and sometimes you might not even notice running over sharp objects. Another common problem lies in the valve stem; aging or loosening can cause air leaks, especially after being impacted by high-pressure water jets during car washes. Wheel rim deformation is also a hidden culprit—aluminum alloy rims may develop gaps after impacts, leading to chronic air loss. I've also seen tire sidewalls scratched by curbs—initially fine, but over time cracks expand and cause problems. If all four tires lose pressure significantly at once, it might be due to sudden temperature drops causing thermal contraction; simply adding air can resolve this. In short, if tire pressure drops by more than 0.3 bar within a week, it's time to investigate.
