KIA Complaints

I purchased a used 2019 Kia Optima from a dealership in January 2025 with 103,000 miles. 11 months later it's burning oil. Every 2 weeks I have to add a quart of oil. I took it to my mechanic and they found cylinder 4 has been burning oil. They also found a technical service bulletin related to engine oil consumption. They recommended replacing long block assembly. They referred me to a Kia dealership. Currently, my vehicle is at a Kia dealership. They performed a "leak down test" and found cylinder 4 has been burning oil and recommend a long block assembly. I have a 3rd party warranty on my car. They are currently reviewing this claim. If they decide to replace the long block assembly, there will be additional uncovered costs that I feel Kia should be responsible for. I have only put 7,000 miles on this car since I bought it 11 months ago. The car currently has 110,500 miles on it. I understand this is a used vehicle but engines should last 200,000+ miles. I'm trying to figure out my rights. By law isn't the dealership responsible for this oil consumption loss and long block assembly replacement?

The contact owns a 2017 Kia Niro. The contact stated that while operating the vehicle, the message "Engine Overheated - Turn Engine Off" was displayed with white smoke coming from the exhaust system. Upon inspection, it was discovered that the coolant level was extremely low. The contact stated that coolant was added to the reservoir; however, hours later the coolant level was low again. The vehicle was towed to the local mechanic, who diagnosed the vehicle and determined that the head gasket was blown and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was 112,000.

Engine is burning oil at a rate of almost one quart per week. The engine can be felt shaking when driving. The engine light came on and states there is a P0303 Cylinder 3 misfired detected.

While driving on U.S. 69 highway in Overland Park, Kansas, the engine in my 2018 Kia Forte suddenly failed without warning. I was entering the northbound lanes from the 95th Street on-ramp and was accelerating to merge at about 50 mph. There had been no prior warning lights or messages. Just after getting into the right lane to merge with traffic, the engine lost power and the car began slowing down quickly. I had vehicles behind me that were still moving at highway speed. I had to react immediately, and fortunately the driver behind me was able to brake. I turned on my signal and coasted as best I could to the shoulder of the highway. Only after the failure did the check engine light come on. The engine never restarted and the vehicle had to be towed. This incident created a serious safety risk to me and to other drivers on the highway. A car entering the highway and then immediately losing power is not something other drivers expect, and I could have been hit from behind. There was no prior warning or symptom before the failure. The vehicle has since been diagnosed by a Kia dealer as needing an engine replacement.

It is an oil burner and engine failed and went into limp mode less than 5 years when drove off dealership brand new.

On the way back from Missouri to Oklahoma, while on the turnpike the engine made a clanking sound and lost acceleration power. The car shook some, luckily the car was able to steer of to the right side of the shoulder just before a bridge. Car came to a stop and would not start. It was snowing and a child was in the car. The closest person for help was 3 1/2 hours away. The hazard lights did work but the car was not started back up after the loud clunk and shaking. Was not sure what happened at that moment. Did not want any further damage to occur. Attempted to have the car towed closer to home was made. A decision was made to take it to the closes kia dealership. As we was trying to figure out what might have happened with the engine. We found there where multiple recall on the car. I was unaware of the recalls. 2 of the recalls are on the engine for piston rod damage. A family member whom is a mechanic believed that was what happened. I called Kia they confirmed the recalls were made. They said there was a fix. I never received the recall notices. They also asked me if I knew someone by the name [XXX] something. If the mail was in this person name but sent to my address. I would not have opened it or paid any attention other then sending it back with the mail man. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the engine seized. The contact stated that the failure had occurred while driving on the highway. No warning lights were illuminated. The contact used a portable diagnostic machine but failed to retrieve a fault code. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The vehicle was not repaired. The contact was advised to tow the vehicle to the dealer. In addition, the contact was informed of an unknown recall for the year, make, and model vehicle. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. In addition, the contact was informed of an unknown recall; however, the VIN was not under recall. The contact was advised to contact the NHTSA Hotline to report the failure. The manufacturer was made aware of the failure but provided no assistance. The contact was informed that the vehicle was purchased used. In addition, the contact was informed that the recall mileage limit was 100,000. The failure mileage was approximately 99,325.

The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the engine seized. The contact stated that the check engine warning light was illuminated several minutes before the engine seized. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was then towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was informed that the repair was not covered under warranty. The manufacturer was made aware of the failure but provided no assistance. The contact was informed that because the previous owner did not have an unknown software update performed, the repair was not covered under warranty. The failure mileage was approximately 138,000.

While driving my 2018 Kia Optima S, the car suddenly jerked, lost power, and stalled in traffic. Multiple warning lights came on at the same time including the oil light, battery light, and check engine light. I had no acceleration and the brakes became very hard to press. The vehicle had to be towed for safety reasons. The Kia dealership inspected the vehicle and confirmed internal engine failure due to “cylinder failure” and stated the engine needs complete replacement. This failure occurred without any external leaks and without warning other than the sudden loss of power. The dealer stated the issue is not covered, even though it is clearly an internal engine malfunction. This is a major safety hazard because the stall happened while I was in active traffic. A sudden loss of power and braking ability puts me and others at risk of an accident. The problem has been confirmed by the Kia dealership through diagnostic testing. The vehicle is still available for inspection. Warning lamps appeared only at the moment of failure, giving no advance warning. This appears to be related to the ongoing engine defects in Kia vehicles involving oil starvation, loss of compression, cylinder scoring, and internal engine failure. Cylinder failure and sudden stalling should be investigated as part of the known safety-related engine defects affecting this model.

Road debris under normal driving conditions caused a puncture of the inverter radiator resulting in a total loss of coolant in the inverter and battery system. Inspection of the system at a Kia dealer confirmed the problem. The first sign of concern was an error displayed on the driver screen stating, "Check drive motor cooling system". There is no mention of this error in the owner's manual for the vehicle, though I did find several online discussions surrounding similar issues and warnings. I was driving on the highway at the time, and outside temperature was just under 40 degrees F. The car continued to drive normally for roughly 15 miles while utilizing the gas engine on the highway but eventually began struggling to accelerate or brake when switching to the electrical system after moving to residential streets. There is not a means of turning off the hybrid system. I received further warnings for several various driver assist functions becoming unavailable and the car became difficult to steer. I parked in a parking lot until the car could be towed for evaluation.