warning chime

I have a 2007 buick terazza and every year in cold weather the warning chime will not go off.There is not a message on the display saying what is making the van unhappy , like an open door or anything thing like that. After we drive it for a while and it warms up, we can cut it off and start it back up and it will go out. When just sitting in park with the van running it is silent. But when I put it in gear it starts with a normal alarm chime, when I start to move though the chime picks up to a more annoying tone.I would really just like to know where the fuse is to disable the chime.any help would be appreciated.thanks

i have a 2005 terazza it does the same thing and it is due to the siding power door. if under warranty get it checked good luck.