TL* THE CONTACT OWNS A 2015 KIA OPTIMA. THE CONTACT STATED THAT HER BROTHER WAS DRIVING THE VEHICLE AND HE SMELLED SMOKE. THERE WAS FIRE IN THE TRUNK ON THE PASSENGER'S SIDE OF THE VEHICLE. THE BROTHER WAS ABLE TO PULL OVER AND RETRIEVE A FIRE EXTINGUISHER AND PUT OUT THE FIRE. THE CONTACT CONTACTED HER INSURANCE COMPANY AND THEY DIRECTED HER TO TAKE THE VEHICLE TO RECOMMENDED INDEPENDENT MECHANIC AND THE REPAIRS WERE COMPLETED. THE CAUSE OF THE FIRE NOT DIAGNOSED. THE CONTACT THEN RECEIVED A RECALL LETTER NHTSA CAMPAIGN NUMBER: 20V519000 (SERVICE BRAKES, HYDRAULIC). THE DEALER AND THE MANUFACTURER HAD NOT BEEN CONTACTED YET. THE FAILURE MILEAGE WAS 40,000.