I got a message today, after my Edge wouldn't remote start, that the battery in the fob was low. Yeah, so low, it wouldn't remote start. I could still unlock the door though. Got the other fob, and as I figured, it was dead also. Luckily, I had some CR-2025 batteries at the house. Of course I didn't know that each fob took two batteries. Dang. And man, getting the cover off was a test of patience. If I had to get to the emergency key for something real, I think I might have broken the thing. After it broke my fingernails!! Anyway, I finally got them apart, changed the batteries, and all is good. Now to get the second TPMS sensor replaced. It's close to oil change time, so I might just wait until that comes up, or just get the oil change done a little early, and have the TPMS done at the same time. It's all good!