The power on the dashboard goes out and I have no way of knowing my speed, the milage, or any other information on how the vehicle is operating. The radio and other dashboard instruments are off the screens are black and I can’t receive any information on how the vehicle is operating. Our safety is at risk since when this happens, we don’t know if it would stop abruptly and cause an accident. We have not taken it to a dealer yet but are scheduling an appointment. No other parties have inspected the vehicle yet. The Warning that came across the radio screen was this: Check the Map SD Memory Card Please see the owner’s manual in detail SET: QY8100NA Application: 102 SNO: 00010697 Application: 107 E-CODE: NK-SD-11 This first happened in the later part of March on the 28th of this year. The Dash does this off and on thing randomly and sometimes it runs fine. The owner’s manual didn’t help.