NHTSA Complaint #11615113 — 2023 KIA SORENTO

I had just entered the highway and reached highway speed of 70 mph. Without any warning, the engine died, all of the dashboard lights came on, and I was unable to accelerate. Thankfully I was in the right-hand lane and there was an exit ramp a short distance ahead. The car decelerated as it had no power, and cars behind me were honking. I was able to exit the highway and coast into a parking lot just off the frontage road. Had I not been able to get off the highway, the vehicle would have been stalled in fast-moving traffic, and a pile-up could have easily occurred. I turned the car off using the push button start/stop, waited several minutes, and restarted the car. The check engine light was on and the car diagnostics system reported an issue with the "engine management system." Upon clicking the details link, the diagnostics system further stated "A possible condition with your Engine Control System has been detected. A full system check is recommended to be done soon. Please contact your local dealership to schedule an appointment." I took the car to a local Kia dealership, and they stated they could not recreate the problem. They reported they "inspected the vehicle for DTC's and found code PO65312 in history." They cleared the code and reported, in writing, that "no issues found during test drive, vehicle currently operating properly, no further action taken" and gave the car back to me without fixing anything. They stated it may need to be diagnosed for longer ext diag time. The vehicle is available for inspection, and I would appreciate any help I can get as I got no help at the dealership.