The contact owned a 2011 Kia Sorento. The contact received notification of NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated while reversing out of the garage, there was smoke coming from underneath the hood. The check engine warning light was illuminated. The vehicle was out of the garage. The contact stated that the turned off the vehicle and opened the hood. The contact stated that there was a significant amount of black smoke coming out of the engine compartment. The contact stated that he attempted to disconnect the positive battery thermal but was unable to do so. The contact stated that he applied a fire extinguisher to the engine compartment; however the smoke persisted and the vehicle caught on fire. The contact stated that the fire then extended to the entire vehicle. The fire department extinguished the fire. The contact stated that the vehicle had burned to the ground and remained at the residence. The vehicle was totaled. A fire department report was filed. No police report was filed. There was no injury sustained. The contact related the failure to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic). The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 70,000.