Traction control system is available in almost every car, but different brands have different names for this system. Traction control system is related to the driving stability and safety of automobiles. The traction control system will work when the driving wheel of the car starts to slip. If the TRC indicator on the instrument panel lights up, it means that the traction control system of the vehicle is turned off. It may be that an operation error triggered the TRC switch button on the vehicle, or it may be that the system itself is faulty.