CX3 Auto gearbox operation.
I have recently carried out a motorway trip and noticed that when going fast downhill the gearbox changes down to hold the speed, i guess. I have had many cars with auto but not had this facility, is this a recent addition to this type of gearbox. I have searched web to see if this is described but so far have not found it mentioned anywhere. There are lots of info on this gearbox but nothing talks about this.
Anybody know of a site where this facility is talked about?