The contact owns a 2017 Kia Optima. The contact stated while the vehicle was parked, the vehicle stalled. The oil change warning light was illuminated. The contact stated that an oil change was needed almost every two weeks. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the alternator needed to be replaced. The vehicle was repaired; however, the oil change warning light was illuminated. The vehicle was taken to a dealer where the vehicle was diagnosed; however, the result of the diagnostic test was unknown. The vehicle was repaired; however, the oil change warning light remained illuminated. The contact research and was made aware of NHTSA Campaign Number: 18V907000 (Fuel System, Gasoline, Engine); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 80,000.