It is very simple. You have to go to your dealer. they will plug the check up box ( what ever thing they use to check your car set ups) and they can change the parameters of the lights ,etc.

In Finland you have to drive day and night with the headlights on. So in every car sold in finland the lights are on or off automaticly. I have done it afterwards in the dealers shop. They say it is really easy and it only takes like 5 minutes. The thing they can't do is to programm them to shut down after 20 seconds. That configration is not possible like in the mercedes or bmw's.