Why does it show low tire pressure when there is still air?

[Sue]

There might be a slow leak in the tire. You can reset the tire pressure monitoring system and observe further. Below are the specific functions of tire pressure monitoring: 1. Prevent accidents: The tire pressure monitoring system is an active safety device that can alert the driver in time when there are dangerous signs in the tires, prompting them to take appropriate measures to avoid serious accidents. 2. Extend tire lifespan: It ensures that the tires always operate within the specified pressure and temperature range, thereby reducing tire damage and extending their service life. 3. Improve driving economy: When the tire pressure is too low, it increases the contact area between the tire and the ground, thereby increasing friction resistance. When the tire pressure is 30% below the standard value, fuel consumption will increase by 10%.