Kia Optima

Component: Power Window / Door Description: All four power window regulators failed on my 2016 Kia Optima SXL within 16 months - from June 2025-Oct 2026. The failure mode is identical on all four doors: the plastic drum gear in the regulator separates or breaks, causing the window glass to drop into the door and become completely inoperable. The vehicle had 113,867 miles on it at the time of the first failure. This is a known design defect, not wear-and-tear. Kia issued Technical Service…

hybrid battery low won't crank but turns on and says park do not drive check charging system

My 2018 Kia Optima has the Theta II 2.4L engine. In February 2026, the dealer performed an engine/powertrain computer reprogramming. In August 2026, the engine failed and the vehicle was taken to an authorized Kia dealer, where the engine was replaced under the Theta II engine warranty. The vehicle was at the dealer from August 8 until the repair was completed on September 29, 2026. When I picked up the vehicle on October 9, it felt shaky and vibrated on the drive home. On October 11, the…

3 weeks ago I had my vehicle towed to Car Pros Kia in the city of [XXX]. They said that there was an issue with the engine which should be covered under the extended lifetime warranty that KIA issued Me 2 years ago due to a recall and a system update that they required that I do on my vehicle. We did the update. We are having the same mechanical issues we did two years ago with the first recall. I reached out to Kia corporate Kia says they're reaching out to Car Pros Kia I've been in contact…

The contact's daughter owns a 2014 Kia Optima. The contact stated that while driving at 45 MPH, the engine stalled and shut off. The vehicle coasted to the shoulder of the road. The contact stated that while attempting to start the vehicle, the engine failed to restart. The vehicle was towed to the dealer, where it was diagnosed with an engine failure and it was determined that the engine required replacement. The contact was informed that the repair was not covered under NHTSA Campaign Number:…

Concerning my Optima KIA's OEM front windshield. At certain times of the day when the sunlight is shining on a certain angle it is difficult to see through the windshield due to the glare which creates a visual impairment. There were a quite a few instance's where I almost got into serious accidents. With my observation the glass looks like there are thousands of microscopic pits like a light sandblasting embedded within the lamination and not the surface of the glass. It seems prominent at…

Severe engine defect (Theta II 2.4L GDI). Sudden total loss of power, metallic knocking, severe oil consumption, and imminent catastrophic failure while driving, creating a high safety risk. Vehicle is currently out of service in [XXX]. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My vehicle keeps consuming/burning oil. In between oil changes I still need to add oil

Air bag light is on the panel & is not enabled & buttons on steering wheel that adjust the volume and stations have stopped working unless the steering wheel is turned all the way to the left. Believe it is a faulty spring in the steering wheel.

The contact owns a 2012 Kia Optima. The contact stated that while driving approximately 75 MPH, there was a rattling and knocking sound coming from the engine before the vehicle stalled. The vehicle was later towed to the residence. The cause of the failure was not yet determined. The local dealer was notified of the failure. The manufacturer was not yet informed of the failure. The contacted stated that prior to the failure, the vehicle experienced excessive oil consumption, and the spark…