I have had a similar problem. Initialliy by coming out of vehicle and then open and closing door gets it started. The problem now is when I put key in ignition, engine will not turn at all. Someone said that the programing is messed up and needs reprogramming. However, on reading all the key fob threads, programming is necessary if you cannot get into vehicle. The central locking is working fine. If I use the spare keys, not key fob type, the vehicle starts without a problem. Looking at the key, slight wear on teeth, but is OK when viewed under microscope. Have you resolved your problems. Please advise what further steps you took. The Galaxy is a 2001 Y Reg 2.3i Ghia model. thanks Jay