Yesterday, the cruise control in our 2000 LS-1 (4-banger with automatic) became intermittent. The on-off switch lights properly, the Resume/Set switch seems to work normally -- it doesn't feel broken -- but from time to time, it will just kick out of cruise, even though I have not tapped the brake or touched a switch, or even turned the steering wheel much (on a long interstate straightaway). Then it will start working for a while, often after having stopped somewhere and started it up again, only to stop working suddenly.
Is this a known problem with this vehicle, or are we going to have to play diagnostic games between the various sensors and switches and computers involved in managing cruise control?
Thanks.