The contact owns a 2010 Hyundai Elantra. The contact received notification of NHTSA Campaign Number: 20V061000 (SERVICE BRAKES, HYDRAULIC). The contact stated on 10/15/2021, while her husband was driving 65 mph, he heard an abnormal noise. The contact stated the check engine warning light was illuminated. The driver was able to exit the highway, before he saw smoke exiting from the front and rear of the vehicle. The driver was able to push the vehicle into a school parking. The vehicle was not drivable. The contact towed the vehicle to her mother in law residence. The contact called 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 140,000.