Is the jump seat from a base model Titan? We called our dealership about getting a jump seat and they stated the XD's were never made with one?
It was available on the S or the SV without convenience package on both the XD and the non-XD versions. The S model interior is a cloth vinyl mix though, so you really want a seat out of a SV model which is all cloth (black with grey stitching). I didn't have any luck with the dealer either and got my jump seat off of eBay.
Dealers very rarely order them configured this way, so I can see why they didn't think they exist.