Take the battery out, and go have it checked, if it is under 13.6, you may have a failing battery. If it is OK, then reinstall and reset your alarm, then try starting it.

 

So, did you get it started? What was the problem? Yes, Disco Mike, I know I mistook position II for position III. My mistake. I guess I figured the poster was refering to the "start" position being that the vehicle wouldn't start. Sorry for the confusion.