My 2001 vette when i use the cruise control my active handling traction control kicks in an out and it will come across saying to service it any ideas what is going on with it

Wiggle the connectors that run out of your door while this happens to see if anything changes. I know that loose pins in one of the connectors can cause all kinds of problems. The other possible issue is a bad ground going to a wire harness.

A wealth of electrical info here:

http://forums.corvetteforum.com/showthread.php?t=896875

Dave