The contact owns a 2016 Hyundai Sonata hybrid. The contact stated that the front driver and passenger seat belts failed to properly retract and loosen when necessary. The seat belts restricted the breathing and bodies of the front seat occupants when the seat belts were secured. In addition, the vehicle lunged, jerked, and accelerated on its own. The failure was more prevalent when the eco and cruise control functions were activated. Eckert Hyundai, Inc. (4011 S interstate 35, denton, tx 76210, (940) 243-6200) stated that the eco and cruise control functions failed and provided an interim repair of disconnecting the battery to clear the ECU and ECM codes, which affected the transmission. Another dealer (james wood Hyundai, 2110 us-287, Decatur, tx 76234, (940) 627-4600) asked the first dealer to test drive the vehicle to generate the codes. The second dealer advised the contact not to drive the vehicle with the eco function activated. Both dealers stated that if the transmission was the cause of the failure, it may be replaced under warranty. The vehicle was not repaired. The manufacturer was notified of the failures. The failure mileage was not available.

- Valley View, TX, USA