No luck yet. Actually, sometimes the key works and sometimes it doesn't. It seems to work randomly to unlock the vehicle, but never works to lock it. I really didnt want to buy an uncut key, or a cut key from the dealer and have them do they work for ridiculous amounts of cash, to find out that it still didnt work so I've been waiting on a real solution. havent found one yet. maybe i'll try the batter replace. I thought I read somewhere that there isnt a battery, that its more like a slow discharge capacitor that is charged every time the key is put into the ignition. I think i'll try the batter replace though.