My 2005 S 60 alarm keeps going off for no reason. I called the Volvo service department where I purchased the car and they said that is usually caused by the batteries in the remotes going dead and told me to change them. I bought new batteries and the problem went away for a month or so. Two days ago, it started up again. I read the thread about the siren thing replacement (sorry-I'm a girl ), but that doesn't seem to be what is wrong here. Does anyone have any ideas on what I should try? Thanks so much!