I replaced the batteries in one of my key fobs because I thought the batteries were bad. I have both original key fobs and one does everything it's supposed to do. The one with the new batteries doesn't lock or unlock the doors. I tried the resynch method on this forum and that made no difference.
When I hit the unlock button, the lights flash once. When I hit the lock button, the lights flash 3 times. Obviously, this eliminates any concern over the batteries, they are good. The other key fob working, also eliminates any issues with the car. Any suggestions? Thanks!