I have a 2003 Hyundai xg350 car and the TCS light is on what does it mean?

The TCS (Traction Control System) light on your 2003 Hyundai XG350 indicates that the traction control system is active or that there may be a malfunction in the system. This can occur when the system detects that one or more wheels are slipping, or if there's an issue with the TCS components, such as sensors or the control module. It's advisable to have the vehicle checked by a mechanic to diagnose the specific cause and ensure your safety while driving.