Geartronic Transmission won't work on 2005 Volvo S40

My s40 drives and shifts smoothly and have never had any other problems with my transmission. however, the transmission will not swith over to geartronic. it doesn't matter if i'm stopped or moving, nothing happens.

Asked by for the 2005 Volvo S40
I suggest stopping by your Volvo dealer and have one of the service advisors look at it and see what they recommend. It's likely it needs to be connected to the diagnostic computer to see what's going on.