Hi all. I need help/advice please. My Civic has decided to give me a headache. It won't lock/unlock with the buttons on the key. Has been fine until today even at long range so don't think its the battery in the key. Have tried my spare key and its exactly the same. (doubt both batteries would fail same day) I can unlock the car manually but the alarm goes off . Still starts and drives so the immobiliser is either switching off when opened manually or it don't work. Ideas ? Thanks Allan.