The contact owns a 2012 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 23V651000 (Service Brakes, Hydraulic). The contact stated that while driving at an undisclosed speed, there was smoke coming from under the hood. The vehicle was driven to the shoulder of the road, and the contact exited the vehicle. The contact noticed fire coming from the engine compartment. The fire department arrived and extinguished the fire. The contact had previously scheduled an appointment with the dealer; however, three months prior to the fire, the dealer informed the contact that the parts were unavailable. The dealer stated a follow-up call would occur to reschedule once parts became available. The vehicle was towed to a local tow yard. The failure mileage was approximately 210,672.