KIA Complaints

The contact owns a 2020 Kia Soul. The contact stated that the check engine warning light illuminated while driving. The contact stated that he was a mechanic, and the contact had retrieved a diagnostic code indicating a vibration in the pistons. The dealer and the manufacturer were not contacted. The vehicle was not repaired. The failure mileage was 112,704.

I believe the Hybrid Propulsion System in my kia optima hybrid should have been part of the recall. The vehicle is currently showing signs of the vehicle's Voltage Protection Device activating inadvertently, causing a sudden loss of power. Vehicle is currently with an authorized dealership being tested.

There was a recall-SC209A for a faulty piston ring. This vehicle “passed” prior to my purchase. I was unaware that my vehicle was part of the recall- when the VIN is entered in the NTSB website, no active recalls show. Starting in 10/24, the vehicle began having problems accelerating, and when I brought to my local mechanic it was found to be nearly empty on oil despite a recent oil change. I have since experienced continuing issues with low oil and oil consumption. The latest incident was in XXX on a trip to [XXX] . The car seized in the highway, and was brought to a local Kia dealer. They diagnosed a bad transmission, and it was replaced. Despite this, the car has continued to burn oil. I have brought the car to my local Kia in Schaumburg where it was purchased. It was today that I found out it was part of the recall. I asked for an oil consumption test, and I was told this would be at a $200 cost to me. I am worried for my families safety taking this car on the road- the oil light doesn’t come on when it is low. Kia hasn’t offered to retest the car, and I feel at significant risk continuing to drive it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2021 Kia Seltos. The contact stated that days after the engine oil was changed the check engine warning light had remained illuminated. The vehicle as taken to the local auto service center who replaced the replaced the crank shaft sensor and camshaft sensor but the failure continued to occur. The cause of the failure was not determine. The manufacturer was notified of the failure but no assistance was offered. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 21V259000(ENGINE). The contact indicated that the vehicle had experienced that same failure listed in the recall. The failure mileage was 120,000.

Coolant empty, found overheating. Coolant refilled. No noticeable leaks. Mechanic found failure of thermostat. Replaced and car found to be overheating again. Coolant leaking into hood covering engine components.

On or around March 20, 2026, my 2017 Kia Niro Hybrid experienced a complete failure of the high-voltage hybrid battery system, rendering the vehicle undriveable. The vehicle was towed to Kia of South Austin. As of the date of this complaint (74 days later), no diagnosis has been provided, no parts have been ordered with trackable confirmation, and no repair timeline has been given. Kia Techline corporate engineers are reportedly involved but have provided no resolution. A sudden high-voltage battery failure in a hybrid vehicle raises potential safety concerns I believe warrant NHTSA's attention, particularly given the extended inability to diagnose or repair the system.

While driving on interstate 380 south,with cruise on ,my engine failed with loud knocikng, Ihad two tractor trailors behind me ,i was lucky to get off road onto side of shoulder this was on May 5,2026. this was the second 2.4 liter theta 2 motor in my sorento, first motor failed at 58.000 miles, second motor failed at 138,000miles. auto was taken to kia dealership in Blakely ,Pa. a NEW MOTER HAS BEEN INST.ALLED UNDER WAURENTEE.MY ENGINE HAS THE KNOICK SENSOR AND SOFTWARE INSTALLED

While driving, the Forward Collision Warning system activated unexpectedly without any apparent hazard or obstruction in front of my vehicle. Immediately after the warning appeared, the vehicle suddenly lost speed and became very slow to accelerate. I was unable to safely increase my speed while traveling on a busy roadway, creating a dangerous situation and nearly resulting in a collision with surrounding traffic. Due to the sudden loss of power and inability to accelerate normally, I activated my hazard lights and was forced to pull onto the shoulder of the road for my safety and the safety of other drivers. There were no visible obstacles, vehicles, or road conditions that appeared to justify the activation of the Forward Collision Warning system. This unexpected activation and resulting loss of vehicle performance created a significant safety risk. I am submitting this complaint because a malfunction of the Forward Collision Warning system or related vehicle systems could potentially lead to a serious accident or injury. I have experienced recurring brake issues despite recently having the brakes replaced. The problem continues to occur, raising concerns that there may be an underlying electrical or electronic malfunction affecting vehicle performance. I was recently pulled over shortly after the brake replacement due to concerns regarding the vehicle's braking system. Because the issue persists after repairs, I am concerned about the safety of the vehicle and the potential risk of a crash or loss of control.

I DROPPED OFF MY CAR AT THE COVINA KIA DEALERSHIP EXPLAINING THE RECALL AND THE ISSUES I NOTICE SUCH AS A BULGE IN THE VERTICAL PORTION OF THE SEAT NEAR WHERE THE CALVES TOUCH. THE SEAT ALSO FEELS DIFFERENT FROM THE OTHER SIDE OF THE CAR. THEY SAID THERE IS A 3 BUSINESS DAY WAIT TO EVEN BE DIAGNOSED AND DID NOT ALLOW A RENTAL CAR. I HAD TO FIGURE OUT TRANSPORTATION. I HAVE NOT RECEIVED AN UPDATE ON THE STATUS VIA THE LINK OR FROM THE SERVICE DEPARTMENT AND IT IS THE END OF DAY 2. I TRIED CALLING BUT THERE IS AN AI MENU THAT I CANNOT GET PAST. I GOT NOTIFICATIONS TODAY FROM THE KIA APP THAT MY DOORS WERE UNLOCKED MULTIPLE TIMES OVER THE SPAN OF 30 MINUTES AND LEFT UNLOCKED AFTER THAT. I DONT SEE AN UPDATE ON THE SERVICE REPORT LINK AND I RECEIVED NO CALL. THE RECALL HAS ALSO BEEN WIPED FROM MY VIN WITH NO UPDATE.

Year/Make/Model: 2018 Kia Niro Hybrid Mileage at time of incident: approximately 69,000 Component: Hybrid Propulsion System / Powertrain My 2018 Kia Niro Hybrid has experienced five recurring "Hybrid System Failure — Turn Off Engine" errors occurring without warning while the vehicle was being operated. Each occurrence rendered the gas engine ineffective in moving the vehicle, creating an immediate safety hazard. The driver was forced to quickly navigate to safety each time. The vehicle has been brought to the dealership four times for this issue — February 25, May 4, May 15, and May 30, 2025. On May 30 the dealer performed a repair they stated would resolve the problem. The vehicle was returned the same day. On May 31, one day later, the error occurred again. The defect remains unresolved after four service visits. Out-of-pocket towing and rental car costs have been incurred each time. I believe this defect is related to the hydraulic clutch actuator issue covered under Kia recall SC276 and the active class action lawsuit (FeganScott v. Kia/Hyundai). The recall repair has not resolved the problem.