So I finally got around to try and program the Homelink garage door opener on my 200C to my garage, and for some reason it won't work. When I try to program it, the lights light up and everything, but my garage door never closes signifying the Homelink door opener is connected and ready to go. My grandpa had a Cherokee with the Homelink system and we were able to connect his just fine, so we know how to connect it, but I'm wondering if maybe there is a battery that has gone bad? If so, do I take it to my local dealer or can I replace it myself? Any suggestions, guides and/or help would be much appreciated.