Does anyone have any clues as to why my Vogue sometimes decides not to unlock ? It locks perfectly every time I push the button on the fob but unlocking is different. Sometime it will unlock from 10m away with no problems but other times I can stand right next to it and push the button 20 times and it won't unlock. It eventually does but it's a real pain in the bum. Sadly I only have one key so am not able to see if it's a fob issue or something else. Any suggestions will be gratefully received !