The contact owns a 2018 Chevrolet Volt. The contact stated that while his wife was driving 60 MPH, the message aœPower Reduceda was displayed. The vehicle was taken to an independent mechanic who determined that the failure was due to the EGR valve. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 51,000.