The contact owns a 2016 Kia Optima. The contact stated that while driving at an undisclosed speed, the vehicle failed to operate properly. No warning light was illuminated. The vehicle was taken to a local Good Year Service Center where it was diagnosed and determined that the battery, alternator, and drive belt needed to be replaced. The vehicle was repaired; however, several miles later the engine seized. The local dealer was contacted. The vehicle was not diagnosed or repaired. In addition, the contact stated that all four windows shattered, and the window regulators were replaced several times. The contact stated that the front driver-??s and front passenger-??s side windows had shattered, and moisture entered the cabin of the vehicle during inclement weather. Upon further investigation, the contact related the failure to an undisclosed NHTSA recall. The manufacturer was made aware of the failure. The failure mileage was approximately 48,889.

- Orlando, FL, USA

The contact owns a 2016 Kia Optima. The contact stated that the front driver-??s and passenger-??s side windows and the rear driver-??s side and passenger-??s side windows were inoperable and would not open or close. The vehicle was taken to the local dealer who diagnosed the vehicle and determined that the window regulators for each window had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not contacted regarding the failure. The contact also stated that the exterior door handles on the front and rear passenger-??s side doors had fractured. The cause of the failure was not yet determined. The vehicle was not repaired. The failure mileage was 85,000.

- Brookhaven, MS, USA

The contact owns a 2016 Kia Optima. The contact stated that while driving at an undisclosed speed, the daytime running headlight would inadvertently blink on and off and turn off. The contact was unable to drive the vehicle at night due to the failure. Also, the rear driver-??s and passenger-??s side windows were inoperable. The vehicle was taken to the dealer, but the dealer could not replicate the headlight failure. The dealer replaced both rear windows. However, the failure recurred with the front driver-??s and passenger-??s side windows. The vehicle was not repaired. The manufacturer was made aware of the failure and informed the contact to take the vehicle to the dealer but provided no assistance. The failure mileage was approximately 90,000.

- Converse, TX, USA