One of the key fobs for my 2005.5 Jetta has stopped opening/closing the doors. I have replaced the battery and it still doesn't work (but the red LED lights up when buttons are pressed). My spare key fob works fine. It seems that the "bad" fob has lost its programming and needs to be reset. I have tried the procedure printed in the owner's manual (which is very unclear). Also tried about five other procedures mentioned on this forum and elsewhere on the web. I have not been able to get any of them to work or even to give the expected audible horn feedback that some of them describe.
Because I have seen so many different procedures for reprogramming the fob, I am not sure which is correct, if any. Has anyone out there successfully reprogrammed a fob for a Mk V Jetta themselves and if, so, could they explain it step by step. Thanks in advance.