The cost to fix a traction control system can vary depending on the specific issue and the make and model of the vehicle. Some common components of the system that may need to be repaired or replaced include the wheel speed sensors, the traction control module, and the ABS module. According to RepairPal, the cost of replacing the traction control switch alone can range from $96 to $106, while the estimated cost of wheel speed sensor replacement is around $208 to $250.