Hey! My key won't work in the door cylinder / tumbler. I do not have a remote key. Had to "break in" to unlock the doors...which, of course, set off the alarm. How can I reset / disconnect the alarm to start the car?? I am a newbie Disco owner and really could use your help! TIA

 

You need to fool the car into thinking its been locked and un locked legitimately.

Have you tried sitting in the car and using the master lock button, then wait a few minutes and unlock?

Your door pin in the handle probably broke.

 

You might want to go ahead and buy the door lock pin, that way you can replace it and lock he door which should solve the problem.