Table 1 shows seven common electrical system related problems of the 2016 Kia Motor Optima. The number one most common problem is related to the electrical system (87 problems). The second most common problem is related to the alternator/generator/regulator (eight problems).
My rear passenger side window would not go up or down & the motor would run when the button was pressed. That was in January 2026. Now April 2026, my driver's side rear window will not go up or down. Read details...
Three of the window regulators failed at the same time and the forth two weeks later. I had them repaired for a almost $ 2000 since the the vehicle has 62k miles and the warranty was good till 60k miles. Read details...
The contact owns a 2016 kia Optima. The contact notice the oil warning light illuminated. The vehicle was taken to an independent mechanic and the stated there was no oil in the engine and added oil. The contact stated a couple of weeks later the vehicle oil warning light illuminated again. Read details...