The car completely stopped without warning. The dashboard lit up with all the lights and informed me that the I need to pull over. There was no time to pull over as the car completely lost all power. The car was traveling on the freeway. It would not start back up and I needed to call 911 for help. The tow truck could not get the car started and the CHP needed to run a traffic break to get it towed off the road. The dealer could only find an NV-energy management alarm triggered and said it was ok to drive again. The next day driving on [XXX], when returning to my car the car said the vehicle electrical system had an error and I could not power it on. I requested a tow and the car is currently at the service department. Of note is when the car was pulled off the freeway I was able to start it and drive it home like nothing happened. Again on [XXX], the car once at the dealership was able to be powered on and driven. There were no warning lights on the car after that. If the car would have stopped while travel at 65MPH, I think there could have been a major crash and it puts the safety of me the driver as well as the other drivers around me as great risk. I have never felt uncomfortable traveling on the highway until this happened. I would never expect a car to completely shut off while travel on the highway with no way of pulling over to the side of the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)