I haven't seen this with a Corvette, but my old 99 Grand Prix GTP did have a similar symptom. The issue with that was that the brake switch needed to be replaced. Basically, the brake pedal was going down on its own ever so slight, just enough to disengage the cruise. If it wouldn't kick in, I'd have to put my foot under the brake to lift it up a little, then cruise would work. Maybe give that a try so you could at least point the dealer in the right direction when you take it in?
Also, as the brake switch or whatever wore out more and more on that old Pontiac, eventually the brake light would stay on even when the car was parked in the garage. I usually noticed when it was on, but one night it turned on by itself and I was greeted by a dead battery the next morning. I was not happy.
Also, as the brake switch or whatever wore out more and more on that old Pontiac, eventually the brake light would stay on even when the car was parked in the garage. I usually noticed when it was on, but one night it turned on by itself and I was greeted by a dead battery the next morning. I was not happy.
