On December 16, 2025 at approximately 0830 hrs. EST my wife attempted to start the above vehicle. There was an "odd" odor in the garage by the vehicle at the time. She was unable to start the vehicle, there were not functional lights and no other accessories were functional. I perfomed a test on the battery later in the afternoon using a battery testing probe, it indicated the battery was non-functional. At approximately 1515 hrs. EST I replaced the battery in the above vehicle. Upon replacement of the battery the vehicle was started and run for approximately 3 minutes to ensure all systems checked alright and there was no damage from the loss of the. I then was standing at the back of the vehicle and noted smoke coming from the tail lights and from under the liftgate. I opened the rear liftgate and felt heat and saw smoke. As I was removing the trim from around the vehicle to access the area of origin for the smoke, the rear bumper cover melted and flames were visible where the bumper cover had melted. I used a fire extinguisher to extinguish the visible fire then accessed the area under the bumper to ensure the fire had been fully extinguished. Visible under the bumper was the tow wiring whch was visibly damaged by fire. I reported the fire to Kia of Muncie from where the vehicle was purchased new in December 2018 and to the Kia Care Line. Pictures of the damage were sent to both. The vehicle had been checked and cleared of all recalls associated with the tow wiring recall