Instrument Cluster/panel problems of the 2012 Buick Regal

The contact owns a 2012 Buick Regal. The contact stated that while driving at various speeds, the instrument panel went blank, and the turn signals failed to operate as needed. The contact stated that vehicle briefly lost motive power but independently restarted while making turning in either direction. There was no warning light illuminated. Additionally, the vehicle jerked while at a complete stop with the brake pedal firmly depressed. The contact stated that an unknown dealer was notified of the failure. The manufacturer was not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 160,000.