I have a 2007 Jaguar XKR with the push button start. Lately, the "keys" don't work well at all. I had the upgrade/service bulletin service done about a year ago, but that didn't seem to help. It seems to me that the battery is going weak on my wireless key. I've talked to the service managers at two different dealers and they both say problems with the keyless system are rarely associated with the battery. I say fine, but can I pay you to just put new batteries in my "key" so that I can satisfy my curiousity? Right now, my keyless system doesn't work worth a crap. Has anybody else had this problem and have a solution? Thanks!