OK, this is embarrassing. Came in from working on the van last week to relieve myself, leaned over to flush the toilet and my keys fell out of a hole in my sweatshirt pocket and down the stool they went???! Still can't believe that happened.....so ordered a new key/fob and was successful in programming the four buttons on the fob but apparently not the transponder for the key, as it will not start the van. From my research, it looks like I need two already programmed keys to program a new third key. Looks like I need to go to a locksmith or dealer now to get it programmed.....unless someone out there knows of a DIY way to do it. Thanks!