Why is the tire pressure of the left front tire lower than the other three?

[CharlieLynn]

It may be due to a slow leak in the underinflated tire, causing the pressure to naturally decrease over time. Alternatively, the tire might have been punctured by a nail, leading to air leakage. When low tire pressure is detected, it should be promptly inspected and repaired or replaced to prevent safety hazards. What to do if the tire pressure is insufficient: If no visible damage is found, simply inflate the tire to the normal pressure and reset the tire pressure system. If a puncture is discovered during inspection, drive to a tire shop immediately for repair, then reinflate the tire. If the tire pressure warning reappears after inflation but there is no puncture, it might be due to a leaking rim caused by deformation. In this case, check the rim and consider replacing it. According to the international GBT2978-2008 standard, the recommended tire pressures are as follows: Standard tires: 2.4-2.5bar; Reinforced tires: 2.8-2.9bar; Maximum pressure should not exceed 3.5bar.