The contact owns a 2023 Porsche Panamera. The contact stated that while stopped at a red traffic light, the vehicle independently shifted from drive(D) to neutral(N), and the instrument panel failed to display critical safety information. The messages "Speed Limit Display Limited”, “No Navigation Data Available", "Left Taillight Fault - Check Taillight", and "Right Taillight Error”, and “Service Necessary" were displayed. The vehicle was taken to a local dealer to be diagnosed; however, the failure was not duplicated. The CPU was replaced; however, the failure reoccurred. The manufacturer was made aware of the failure. The failure mileage was approximately 30,000.