NHTSA complaint #11426782

Owner complaint summary

Engine shut off while driving 70mph in the middle of the mountains in PA during a road trip from VA to MI, 2 adults and one child. No Warning No Check Engine lights No alarms, just shut off. I tried to press the ignition start button but it would not function until the engine was in park, gave no warning or alarm when I pressed it, the engine start button wouldn't respond. At Shutoff, going ~70mph, I had: Zero acceleration Zero power No blinkers No Instrument Cluster (LED Cluster screen installed) The only way I could signal to merge onto the shoulder was to turn on the hazard lights and attempt to merge from the fast lane to the shoulder, completely crossing faster traffic with no blinkers to guide my merging and warn other drivers on the highway. Instrument cluster turned white as if it was being reset and music was still playing in the car Bluetooth connected to my phone. Conditions of the vehicle during shutoff: 1. Adaptive Cruise Control was on, set to 3 car lengths of distance. 2. Lane Keep Assist was on 3. Lane Departure Warning was on 4. Bluetooth was connected 5. Navigation was active and guiding Once I was able to merge to the shoulder, I shifted into park and sat there for about a minute while I tried to calm my family down from what had happened so unexpectedly. After a minute or so, I was able to start the vehicle back up and nervously proceeded back on the highway to continue on with the rest of the trip. I immediately contacted Hyundai when I returned to VA and explained the issue, they took the vehicle into the service department of the dealership that I purchased the vehicle from. Hyundai kept my vehicle for 2 days and drove it "120 miles" but were unable to recreate the problem. They stated that all the systems checked out and there was nothing more they could do. I have since created 2 cases with Hyundai Corporate office to rectify this issue to no avail. Without the issue being recreated, there is nothing they will do for my family.