The Automatic Door Locking System is not working in my Mervia - i think it is also called the anti-theft / anti-hijacking system (automatically locks the doors once driving at about 5mph) Today the symbol (door with a key) lit up red on my dash and continually beeped. I followed instructions on the manual and put on the childlocks which stopped the beeping but the dash is still lit up. The central locking continually tries to activate throughout the drive (as i am slowing or stopping at lights) The doors appear to be secure. A new battery was put in the car approx 2 months ago and it has worked fine ever since. This is completely random. Does anyone know anything that could cause this?