What does it mean when the SET light is on?

[MacKai]

SET light on may be caused by the following two reasons: 1. The SET light may illuminate due to abnormal tire pressure. Many vehicles nowadays are equipped with a tire pressure monitoring system. When the sensors detect abnormal tire pressure, a warning will appear on the dashboard to alert the driver to check the tires. In some vehicles, the SET button on the center console will also light up. In such cases, you should immediately stop and check for any tire leaks. If the tire is flat, you need to replace it with the spare tire before continuing your journey. Do not continue driving. 2. If the SET light comes on while driving, it indicates that the tire may have a leak. Of course, sometimes the tire pressure monitoring system can be triggered falsely if the vehicle is overloaded or driving on bumpy roads. When the vehicle alerts you to a tire pressure issue, you should stop promptly to inspect the tires. After resolving the issue, remember to press the SET button on the center console to reset the tire pressure information.