What does it mean when the SET yellow light on the dashboard is on?

[AnnieMarie]

When the SET light on the car dashboard is illuminated, it indicates that the tire pressure of the vehicle is too low. Here is an introduction to the SET light: 1. Tire Pressure Monitoring System: Once the light comes on, it means that the inflation pressure of one of the wheels' tires is too low. 2. Principle of Pressure Monitoring: It uses wheel speed sensors to detect the rotation speed of the wheels. When the speed difference between a certain wheel and the other wheels reaches a certain value, the system will determine that the tire pressure is insufficient, and then the SET button light and the dashboard tire pressure monitoring warning light will illuminate to alert the driver. 3. Specific Situation Introduction: The illumination of the SET light is most likely caused by abnormal tire pressure. Many vehicles today are equipped with a tire pressure monitoring system. When the sensors detect abnormal tire pressure, the dashboard will alert the driver to check the tires, and the "SET" button on the center console of some vehicles will also light up.