I have a Vauxhall Astra coupe 2.2,and the alarm intermitantly goes off,why??When it goes off,pressing the key fob will not silence it,putting on the car ignition will not silence it,only while running the car for a few minutes does it silence.The car battery is good.

Antoni Jalowiecki, February 2008

the back up batteries in ur power sounder r failing

hodgie, February 2008