Hi, I just want to know if any one can help me or if they have had any similar problem and could offer assistance. I just purchased a 2003 Dodge 2500 diesel and after I lock the doors, if I unlock with the key the alarm goes off. I do not have keyless entry. The alarm is supposed to disarm when you unlock the door with the key or start with the sentry key according to the manual. It does not have the central locking capability. The alarm still activates with both the passenger and driver door being unlocked with the key as I thought it may be a problem in the door boot. I am hopng someone can help me as this problem is a little annoying............Sorry for the long post.