Is there a SW update for my 2010 GC SXT radio to allow the voice command features to work for my Iphone 5? Phone currently takes and receives calls fine but nothing else.

How do I tell what SW version I have and if there is a update? I have had the van since Dec 2012 and no updates done since then.

Not sure of the radio model but it has uconnect, Hard drive, full screen with back up camera but no Nav.

thanks in advance