The contact owns a 2022 Jeep Wagoneer. The contact stated that while her husband was driving at approximately 10 MPH, the vehicle stalled, and smoke was coming from under the hood. The contact stated that the smoke had also entered the passenger cabin. The contact stated that her husband had not mentioned whether any warnings had illuminated. The contact stated that when she arrived to pick him up, the fire was extinguished. The fire damage was confined to the engine compartment. The vehicle was towed to a dealer, but it was not a manufacturer dealer. The vehicle was diagnosed, and it was determined that the generator and the start/stop battery had caught fire and needed to be replaced. The contact was advised that the battery was on national back order. The vehicle was not repaired. The contact stated that she had searched online and associated the failure with an active NHTSA National Action Number: PE24018 (Electrical System, Hybrid Propulsion System, Engine, Engine and Engine Cooling). The manufacturer was not informed of the failure. The failure mileage was approximately 90,000.