The contact owns a 2014 Audi Q5. The contact stated that while driving at an undisclosed speed, the EPC (Electronic Power Control) warning light illuminated. The vehicle was taken to a dealer where it was determined that the vehicle was under recall; however, parts were not available. The vehicle was taken to the same dealer when parts became available and the vehicle as repaired; however, the failure reoccurred approximately 6 years after the recall repair. The manufacturer was notified of the failure. The failure mileage was unknown.