If the rear foglights do not work, then it is indeed something that needs to be reprogrammed. The wiring should already exist since it functions as the adaptive brake light (NA models only) and thus, should illuminate under strong/ABS braking. It's likely that the light module and perhaps the ECU needs to be programmed to ECE standards, which is what the rest of the world uses.

You could always drive to Mexico since they use the ECE headlight standards