hello tracey, it is possib,e to change the code, but require make and model to have any chance at all.
if you change the keypad then tamper will activate ( if connected by installer) perhaps more importantly the active power supply (12volt, + & - ) may touch together and blow the RKP fuse in the main panel. not so much dangerous, but
system will not function until repaired.
code change to responsive digits does look the better option though.
mike
January 2008