Sunroof - One touch close or not

[abster641]

Hello,
I was playing with my sunroof the other day and noticed that it did not slide to close with one touch of the button. One touch open is there but you have to hold down the button to close the sunroof (front the sliding position not the vent position). I did read the manual but it was not clear if it was only the auto open that was being referred to. I have had my car for almost two years now but don't remember it ever auto closing the sunroof.

TIA