2004 Enoy 4.2L 2 wheel drive. Driving over the sierra Nevada mountains my traction control turned off and would not turn back on. Vehicle seemed to be fine otherwise until we got into Reno and came to a stop and accelerated again. The vehicle now had a hard shift from from 1st to 2nd and 3rd. Stopped at hotel for about 1/2 hour and everything was fine again. No warning lights on dash. Only light was the track control being off. Any thoughts? Thank you!