Contour Enthusiasts Group Archives Forums General Troubleshooting CEL on then off, should I be worried?

Sorry to hear about your problems on the trip. Sounds like your VSS (Vehicle Speed Sensor) died. It feeds signal to electric speedo as well as PCM (Powertrain Control Module). Failure meant neither you nor car knew speed at which you were travelling.

Unrelated to your prior CEL but you should now get the code read at Autozone and post for advice.