 If that part was the power window switch, because it's part of a module, some of those have to be programmed, yes. So if he put it in and it doesn't work, it may have to be programmed. But that can be done at a dealership. It could be done at an independent repair shop that has programming equipment. It can be at a lot of places. But there are many parts now that never had to be programmed in the past.