2014 Dodge Dart engine problems

Tl* the contact owns a 2014 dodge dart. While driving at approximately 50 MPH, the vehicle stalled and the engine, battery, and stability control warning lights illuminated. In addition, the contact mentioned there was a burning odor. The contact was able to pull over and the vehicle was restarted. The failure recurred on multiple attempts. The vehicle was taken to a dealer twice, where it was diagnosed but the failure was unable to be determined. The vehicle was not repaired.

Sudden stalling at any speed, been to towbin dodge in henderson nevada, they say they all do that when it needs an oil change, so I asked them, there is only 500 miles since u guys just changed it, they hooked up a scanner and said no codes cars fine. I said it shuts off for no reason, the steering gets super stiff when the car dies, and it's a push button start system, then it makes a funny noise, after a few attempts it will start up and be fine for a week or so, sometimes it stalks 2 to 3 times in a mile.