KIA Complaints

I am experiencing engine issues with my 2017 Kia Niro Touring Launch Edition at approximately 111,000 miles, including engine hesitation and lack of acceleration, along with engine code P0011. These symptoms started suddenly and have made highway driving difficult and potentially unsafe, as I was recently in the mountains unable to exceed 35 mph. This appears to be a widespread issue among 2017 Kia Niro owners, with many reporting CVVT (Continuously Variable Valve Timing) or solenoid failures around 100,000 miles shortly after the powertrain warranty expires suggesting a pattern of premature failure. My car was purchased certified preowned and is still within the 10 year timeframe. No official recall currently exists for this issue, but it should be investigated. Despite submitting service requests and making multiple attempts to contact the dealership to have these recalls addressed, I have received little to no follow up. I have not yet had the engine issue officially diagnosed by a Kia dealer due to lack of response but the pattern of failure and symptoms match what others are experiencing. There has been no crash, fire, or injury at this time, but the combination of the existing fire related recalls and the new engine malfunction creates serious concerns for long term safety and reliability.

I was driving down the highway when I heard a loud explosion like a gunshot that caused me to slow down and almost getting into an accident. It was scary; I came to a stop and realized that my sunroof had exploded. There is a large hole in my sunroof bigger than a watermelon with glass particles everywhere.

The contact owns a 2013 Kia Optima. The contact stated that while driving approximately 60 MPH, the vehicle suddenly lost motive power. There were no warning lights illuminated. The contact was able to restart the vehicle and continued driving. The contact stated that during the second failure, the vehicle was unable to be restarted. The vehicle was towed to the person who the contact purchased the vehicle from who was a certified mechanic and was diagnosed with engine failure. The vehicle was not repaired. The manufacturer was informed of the failure, and confirmed that the VIN was not under recall or warranty. The failure mileage was unknown.

My 2018 Kia Optima LX began using excessive oil (>3 quarts/1000 miles) just over 100K miles. I researched and found that the Theta II engine in my car is known for this. When I took my car to dealership (Stokes Hodges Kia, North Augusta, SC), with the check engine light on, they told me me plugs were fouled (they were just replaced 1 yr prior), cylinder 3 misfiring, and that I needed to pay a few thousand dollars to have repaired. When I asked them to guarantee the soaking process they recommended, they responded that they couldn't, that it "only worked 80% of the time." I have the KSDS download since 2019 and asked them to follow the guidelines of their TSB ENG 222 for the class action lawsuit and start a 1000 mile oil consumption test. they refused, basically telling me the only way to get a new engine from Kia, since my car is over 100K miles, is to drive it until the engine seizes. I expressed my fear for personal safety, but they wouldn't help me. I am original owner and have all services, etc documented. I called Kia customer affairs, then was told only local dealership could help. they stuck me in a loop between them without helping. Please help me.

In January 2025, Shortly after an oil change (6-7days after), the vehicle first slowed down abruptly while driving and had a clinking sound. The vehicle was then pulled into a parking spot, refrained from driving due to the clinking sound. It was then towed to a Kia dealership in Jacksonville NC, diagnosed as engine failure at the cost of over $9000. The vehicle has been at the lot since January of 2025 because we can't afford the cost. Similar Kia vehicles have been recalled, and we would like this particular vehicle investigated. We purchased the vehicle in November of 2022 from a used car sales lot.

Engine issue, it’s knocking loud and misfires. Engine light flashing and Car went into limp mode , will not go over 60 mph . I have changed the spark plugs, knock sensor, and had an oil change nothing has fixed my issue.

I have a check engine light related to the high pressure fuel pump. Because i brought the car in for the recall before the code appeared for the high pressure fuel pump, Kia claims the recall is complete and will not perform the related recall repairs. I also have since developed a engine code related to the catalytic converter which i am told by a separate mechanic that this can be caused by the high pressure fuel pump error. All in the repair estimate is $8,006.26, not including the $235 for Kia to give me this information without fixing anything.

The contact owns a 2020 Kia Telluride. The contact stated that while he was servicing the vehicle, the contact noticed that there was a hole in the rear upper part of the engine block. There was no warning light illuminated. The dealer was contacted. Additionally, the contact stated while driving at various speeds, there was an abnormal burning oil odor coming from the engine. The vehicle was taken to an unknown dealer, where the contact was informed that the engine would need to be disassembled to determine the cause of the failure. Additionally, the dealer informed the contact that three oil changes needed to be performed, and the engine needed to be flushed and replaced. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to follow the dealer's instructions. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 93,364.

My 2017 Kia Sorento is not included in the engine safety recall regarding the crankshaft failure in the engine. But I am experiencing the exact same problem so I do not see how it is not included in the recall. I am requesting the recall be expanded to include more vehicles because it is not safe to drive and is currently being held hostage by the dealer who wants $10,500 to repair my engine. I refuse to pay for negligence on the part of the manufacturer. Kia corporate has been very dismissive and not helpful. Please advise

After complaining about clutch judder resulting in getting anti-judder logic software update, followed a month later by transmission serviced, transmission suddenly failed while driving in heavy traffic on the freeway. After repairs, judder keeps happening at low speeds on the freeway or slow speeds under load.