My alarm has also stopped working as of last night.
When I tried last nite I pressed a variety of button combinations and as stated above, at one point, the light did stay on...but after this it still did not work.
I tried again this morning and this time the light on the fob wouldn't stay on, just lit up as I pressed the button and went off as soon as I released the button..
Any ideas??! Cheers
Martin, February 2008