I had to have the head gasket replaced at 62,000 miles, which was bad enough, but the garage disconnected the battery and so the code kicked in. Somebody'd written the keycode in one of the car's manuals, but having tried it 3 times without success, the thing's locked and i haven't got the foggiest what to do next. I'm sure i've read the number properly, so i don't think even when it unlocks it'll take it a 4th time. Can anyone help? Thanks.