I had an unfortunate issue with my Niro today. As I was driving, on the infotainment screen a message came up about a problem with the Motor Control Unit. The HEV warning light on the instrument panel came on, the check engine light came on. So I pulled over, turned the car off and put the hazard lights on while waiting for a tow truck. Then the hazard lights stopped working. Long story short, my car is at the dealership where they say they will need to hear back from Kia about whether they want any additional tests run before they can determine exactly what is wrong. Does anyone happen to know what the motor control unit actually is and what it does, and also would replacing that part be covered under any of the vehicle's warranties?