The contact owns a 2018 Jeep Wrangler. The contact stated after parking and turning off the vehicle, she saw smoke exiting from the hood. The contact stated she removed her two infants from the vehicle before locating the fire extinguisher she had available in the vehicle. The contact stated the fire extinguisher was broken but was able to extinguish the fire with a fire extinguisher that was provided by a school bus driver that was in the area. The fire department did arrive at the location after the fire was extinguished and filed a fire report. The contact was not aware if the police deputy at the scene filed a police report. The contact stated she burned her right middle finder while extinguishing the fire but did not seek medical attention for her injury. The vehicle was not drivable. The contact towed to the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 40,800.