(Know this is an old post, but worth a try!) I have the same problem with my MKII Galaxy. The remote was erratic. So I changed the batteries. It then went to *nearly* not working, but 1 time in 50 (yes I keep trying!) it will unlock, but never lock. I have looked at posts about reprograming, but these seem to be for a MK I (either way tried and it didn't work). Would getting a new fob work? if so how could I program it? many thanks