This indicator lamp lights up. What could be the cause of this?

This warning light indicates a problem with the tire pressure monitoring system (TPMS). It lights up when at least one tire has low inflation pressure or after a wheel has been changed and the system needs to be reset. A loose wheel nut is not directly detected by this system, so only low tire pressure or a recent wheel change are typical causes. Understanding this helps you react correctly: Stop and check your tires for proper pressure or recalibrate the system after wheel or tire changes. If you see this light, check your tires as soon as possible to ensure safe driving.