I had the same thing happen to me in Flagstaff in summer when the Jeep was new. I had been driving for a few hours and stopped for fuel. Got back on the freeway and had no power. Pulled over, restarted it, and it was all good again. Lesson learned to not jump on it after a long drive and quick stop. Also, I don’t recall, but I’m sure I should have let the vehicle idle a bit longer before shutter her down. A warning would be lovely though.