What is a common indication that the tire pressure adjustment system is operational?

A common indication that the tire pressure adjustment system is operational is the ability for the tires to inflate without manual intervention. This reflects the system's functionality: it automatically detects pressure levels and adjusts them as needed, ensuring optimal performance and safety. If the system is operational, it should seamlessly manage tire pressure without requiring the driver to take action, highlighting its automated nature.

Visual confirmations, sounds, or dashboard lights may provide supplementary feedback, but they are not definitive proof of the system’s operational effectiveness like the actual process of inflation itself. Therefore, the ability of the tires to inflate on their own is the clearest indicator that the tire pressure adjustment system is functioning correctly.