Problem with VDC please help

geddy lee

2009 370Z. Lately my skid light will come on and then the VDC off light will also come on. This happens kind of randomly. I can be going straight or in a turn. I think the VDC may still be on but the lights indicate otherwise. The way it use to work before, was that the skid light would come on while the VDC was on to to tell you that the VDC was on and in control and you had some skidding going on but now the 2 lights come on together even though I don't really feel much of a skid from the car itself. Could this be some kind of electrical malfunction or what? Thanks in advance.