Door lock actuator

I have a 2004 Grand Prix GTP and the door lock actuator triggers every time I take off from a stop or when I go below 5 mph and then increase my speed. Could someone tell me what could cause this and how to fix it.

Have you found a solution to this problem. I have an 02 that does nearly the same thing and it is quite annoying. My car will try to lock everytime I accelerate from a stop just as I pass around 23mph. My thoughts are that there is either a sensor system gone bad or an electronic control somewhere that has started to malfunction. From the looks of other threads, there could be some relation to the security system. Please let me know if there is a solution?