2017 Kia Sportage Engine

Kia Sportage has had serious oil consumption issues for 3 years. And recently is loosing pressure in cylinder 2 as a result of excessive carbon build up on valves and head from oil burning in the combustion chamber.

See attached document for complaint.

On 1/10 about 1.5 hour driving out of town later engine started idling low. Pulled over, replaced spark plugs and engine coil and still idling rough. Took vehicle for diagnostics of a broken head in the valve. I drive a 2.4L engine 2017 Kia Sportage LX AWD. only 114K miles. Quoted thousands and thousands, more than care worth to repair.

On 11/21/2025, while operating my vehicle, I experienced a critical engine failure. The engine failed a compression test, with readings as follows: Cylinder 1: 125 PSI Cylinder 2: 60 PSI Cylinder 3: 25 PSI Cylinder 4: 3 PSI As a result, the engine had no compression in multiple cylinders, preventing the vehicle from starting. The vehicle exhibited [smoke, stalling, or other observable symptoms]. This failure appears consistent with known issues in the Theta 2 GDI engines, including risk of engine failure or fire. I had not received notification of any required software updates or recalls relevant to this issue. Despite multiple attempts to resolve this with the dealer, including [dates of service attempts], the dealer refused to cover a replacement engine under warranty. Impact on Safety: The sudden engine failure rendered the vehicle inoperable and posed a significant safety risk due to the potential for stalling or fire while driving. Additional Notes: I am submitting this report to request that the NHTSA investigate this potential safety defect.

On November 2, while driving my 10-year-old son to a soccer game, the vehicle suffered a sudden loss of power at road speed. The vehicle's failure to provide a "limp-home mode" or any sensor warnings prior to stalling created a significant life-safety risk for my son and me as we had to coast across traffic to a safe location where the car stalled. •No Warning Indicators: There were no prior "Check Engine" lights, oil pressure warnings, or temperature fluctuations. •Hazardous Failure Mode: The vehicle stalled completely in active traffic. I was forced to perform an emergency maneuver, coasting across lanes of traffic to reach a safe shoulder. •Outcome: The vehicle was towed to Ourisman Kia of Bethesda, where service technicians diagnosed "severe internal engine failure."

My wife was driving home from work on 10-15-2025 when the car started to lose power and started shaking, vibrating really bad. She got off the exit and at the red light and it died. She called me crying and scared. She started the car back up to try to get the car home and she said the car is vibrating and shaking really bad and I’m so scared and it died again in traffic. I told her to pull over and I would come get her and she did make it home. I look at the car and found it had a misfire on cylinder 2. Cylinder 2 had NO COMPRESSION. I did take it to Kia and they confirmed the diagnosis. Here is where the problem lies. The technician that scanned my car purposely miss diagnosed it. He wrote it only had burnt valves and cylinder. He never said anything about the hole in my piston. He took a picture of it and it has a hole on top. He said the car was drivable; are you kidding me. When you start the car the voice comes over the speakers and says the computer has detected a major engine problem. My cars vin # confirms that it qualifies for the class actions settlement because of the engine that is in the car. They are known to fail because of excessive oil use, starvation of oil, bad piston rings, bad rod bearings. We have been without her car since this happened. Kia said the car was drivable and I can promise you it is not. This car is not safe at all to drive. It loss all power in traffic and it kept dying.

October 2, 2025 no oil in engine. car has always had regular oil maintenance. Dealer put almost four quarts of oil in car to start an Oil Consumption Test of 1,000 miles. November 22, 2025 driving about 70 miles an hour, on the 241 Toll Road car loses powder, speed dropped to about 20 miles an hour. I was able to make it to the highway shoulder where the engine struggled to stay running. I cut the engine off and it would not start again. Had to be towed to Covina Kia. Still had over three hundred miles before the 1,000 mile test. Last oil change July 9, 2025 at Covina Kia. I bought my 2017 Kia Sportage in October 2016 brand new. I'm the only one to drive it. I have always taken it back to dealer for servicing. All my oil changes were done with the dealer and on time. I understand there is a class action lawsuit against kia for oil starvation and engines seizing, (theta II sc147). All indications suggests my engine also suffered the same manufacturer defect as claimed in the lawsuit. AND I WANT TO BE COMPENSATED KIA Manufacturer is aware of there engine problems and should be more proactive, before someone is killed

My Kia engine has failed and Kia is refusing to submit or honor my engine replacement claim under the known engine defect class action/recall. The dealer told me that the claim cannot be submitted because a prior owner did not receive the KSDS (Knock Sensor Detection System) software update. Kia then changed their reasoning and stated the engine failure was “for another reason,” but still refuses to provide documentation or allow the claim to be processed. I was left without a vehicle, charged excessive diagnostic fees, and stranded in dangerous winter weather conditions (around -30°F wind chills). The dealership refuses to send the engine claim to Kia, stating the “missing KSDS update” as the justification, even though the engine failure was unrelated to that software and the recall states that Kia must prove the update’s absence caused the failure before denying coverage. Kia’s refusal has resulted in an unexpected repair estimate of approximately $6,000, no loaner vehicle, and severe hardship. Their actions appear to violate recall obligations and consumer safety protections, as I am being denied a known-defective engine replacement due to a prior owner’s failure to complete a software update. I am requesting investigation and intervention, as Kia is not honoring the recall process or the class action settlement requirements.

Car shut off middle of driving. mechanic said engine is seized, and no oil in engine. car has always had regular oil maintenance. there is a class action lawsuit against kia for oil starvation and engines seizing, (theta II sc147). last oil change was 4,500 miles ago. all indications suggests my engine also suffered the same manufacturer defect as claimed in the lawsuit. Balise Kia in West Springfield MA refuses to do the inspection of the engine without proof of every single oil change since i purchased the vehicle in 2016, which is an impossible request. Corporate also stated that it is the dealership's discretion to demand oil receipts, even though I offered to print credit card statements instead, and I purchased a car fax report that has them listed beginning in 2019, but unfortunately none reported before then. I provided them with receipts of no oil changes missed since 2024. still denied the inspection. there were no warning lights prior to the engine seizing.

We had to take the car to a mechanic to have the engine replaced because it started making a loud noise and then stopped running. They advised us that because it has less than 150,000 miles, it should be covered by KIA. We spoke to KIA and they told us that because we missed 2 recalls that we were never notified about it would not be covered. If the recalls would have been done, they would cover the damages. We purchased the car a couple of years ago from my sister in law who got it when my father in law passed away in 2019. I checked with her and she never received the recalls and we never received them. Therefore, since neither of us knew about the recalls they were not done. I spoke to someone at NHTSA and they advised me to file a complaint. They don't have records of where the recalls were mailed. We are having to pay $4500 out of pocket due to this issue. Please advise if there is something that you can do to help get KIA to reimburse us or the damages that should be covered by them. My cell # is [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Car started having issues with retaining oil and was blowing oil out of the oil fil cap, oil changes were being performed every 3 weeks due to continued oil loss without cause. Car started shaking while driving on the highway, check engine light started flashing and car lost all power. Car was towed from highway to KIA authorized dealer where they performed a full engine replacement, replaced serpentine belt, oil filter and air filters. Picked up vehicle from dealership approx. 2 weeks later, engine was still blowing oil out of oil fill cap and entire vehicle smelled like used oil. Dealership also refilled engine with wrong type of oil upon replacement of engine. Car requires 5W-20, dealership put in 5W-30 instead of correct oil.

On October 16, 2025 my car lost ability to accelerate while driving on highway. Just as the car was losing motive power the engine light came on. Car was then towed to a mechanic. After looking at the car the mechanic reported that the engine had seized and I would need a new engine. The mechanic was able to get the engine moving. The week before I had put oil in the car as I noticed it was going through oil faster.

The contact owns a 2017 Kia Sportage. The contact stated that while driving approximately 45 - 50 MPH, the vehicle started to decelerate unintendedly. The contact depressed the accelerator pedal; however, the pedal went to the floorboard, and the vehicle failed to accelerate as needed. The contact attempted to depress the brake pedal; however, the brakes failed to stop the vehicle. The contact activated the hazard light and was able to coast to the side of the road and noticed smoke coming from underneath the hood of the vehicle with a burning odor. The contact turned off the vehicle and had the vehicle towed to a nearby mechanic. The mechanic determined that the engine had failed and referred the contact to the dealer for assistance. The vehicle was towed to the dealer, and it was determined that the engine needed to be replaced. The contact found information on NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) online; however, after discussions with the dealer, it was decided that the contact had to provide maintenance receipts before any engine replacement could be finalized. The vehicle was not repaired. The manufacturer was informed of the failure, and a case was opened. The failure mileage was approximately 88,000.

January 9, 2025 I bought a new 2017 KIA Sportage from Bob Bell KIA-Glen Burnie July of 2017. All oil changes have been performed up-to-date and regularly as advised. When Bob Bell-Glen Burnie no longer serviced KIA, I started taking my vehicle to KIA-Eastern Avenue (Baltimore). The oil consumption issue started during the time I was taking my vehicle to KIA-Eastern Avenue for services. Throughout this entire process, I received mixed messages from KIA-Eastern Avenue, JBA KIA-Glen Burnie, and Johnson KIA-Annapolis about how often to change the oil. Depending on which Advisor at each dealership I spoke with – one would say change the oil every three thousand miles another would say every five thousand miles. As of late, one of the Advisors (Johnson KIA-Annapolis) even told me over the phone that I should change the oil every 2500 miles as that is what he does for his car – thankfully, I happen to be a customer that knows better than that. Unfortunately, his poor advice reminds me of the poor customer service dealing with KIA-Eastern Avenue, which is why I chose to deal no longer with them and take my vehicle to Johnson KIA-Annapolis with the hopes of getting better service. Advisor was kind enough to verify my information in Johnson KIA’s system and had to make a couple of corrections - one being my name misspelled and the other being someone entered into the system that I was not the original owner of my car when in fact I bought it off the Bob Bell KIA-Glen Burnie lot, brand new. In September of 2023, after my car went limp on the highway due to a knock engine sensor, I had my car towed to Johnson KIA-Annapolis (see Invoice XXX). They performed a BCT and decided that my car was one that did not fit the requirements for a new engine. I filed a Thet INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Blown engine P1236 knock sensor circuit

I have documented oil consumption issue since 65,000 miles. Every time I got an oil change after that, I would have very low oil. When I told Kia, they told me that the engine would have to "blow up" for anything to be done. This all occurred before my 100,000 mile powertrain was expired. On July 2, 2025, my car began shaking and jumping while I was driving and any time I had the brake on at a red light. I took it to Midas for a diagnostic test and they said that 3 out of the 4 cylinders were misfiring. They told me to take it immediately to Kia. When I took it, they said they would do a diagnostic test. They said that one of the cylinders were misfiring and that I would need a new engine. At this time I was at approximately 113,;000 miles. I opened a claim with Kia and for a month, the only correpondence I had with them was when I called either Kia Corporate or Kia service where my car was. They never helped me, only told me I could get a new car and they would give me "a deal". I finally got in touch with a local mechanic and he said he wanted to look at the car. When I went to Kia to pick it up, it would not start, even when one of their mechanics jumped it. The local mechanic towed it for me, but not before Kia made me pay over $400 to take a car that did not run. They would not give me the keys until I paid. The local mechanic found that I had a cracked spark plug and had my car running in a day. I am appalled at how I was treated and how Kia would not stand by their car and then tried to get me to buy a new one. My car was well taken care of and it should not have needed a new engine, had oil consumption problems or should have been sitting in service for a month. Something needs to be done so that this does not happen again. There is a Facebook page dedicated to Kia engines and the stories are very similar to mine. This is not right.

The contact owns a 2017 Kia Sportage. The contact stated that while driving 70 MPH, the vehicle stalled and then lost motive power with several unknown warning lights illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure and the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where the same diagnostic test information was provided. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 101,000. The VIN was not available.

Burning oil. Having to put a quart of oil every 1-2weeks with less then 500 miles used. Local dealer won’t do anything about it.

The contact owns a 2017 Kia Sportage. The contact stated that the oil level was lower than expected; however, oil was being constantly added. There were no warning lights illuminated. While driving approximately 65-70 MPH, the vehicle suddenly lost motive power. The contact was able to coast to the side of the road and turned off the vehicle. The vehicle was towed to the residence. The vehicle was towed to a certified mechanic who diagnosed that the engine had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 80,000.

Oil change completed on 6/19/2025 Noticed oil leaking 3-4 days after change. Performance Plus, came to my work and inspected oil leakage. They stated the leak was coming from the oil pressure switch. I had the engine recall completed less than a year ago. Is this something that's still under warranty?

I was driving down the hiway and my vehicle just shut down without warning. Kia will fix for $12,000 . This is unfair I feel it should be fixed this happened almost a years ago and still nothing!

The contact owned a 2017 Kia Sportage. The contact stated that while driving at 75 MPH, she observed black smoke emanating from the engine compartment. The contact was able to pull to the shoulder of the roadway and switch the vehicle off. After a visual inspection, she observed flames within the engine compartment emanating from a source unknown to the contact. Local emergency service arrived and was able to extinguish the fire, later attributing the fire to an unspecified equipment failure. No warning lights were illuminated. The vehicle was towed to a tow yard and deemed a total loss by the contact's insurance provider. A fire report was filed. A police report was not filed, and no injuries were reported. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 149,000.

The car is going through oil at a ridiculous rate. I have checked and it is not leaking. It is causing poor acceleration and driving performance. I make sure there is also oil in there but I should not have to do it as often as I do.

1. What component or system failed or malfunctioned, and is it available for inspection upon request? The engine failed while driving ([XXX])—specifically, the engine seized and became inoperable while driving on the interstate. Yes, the engine is still available for inspection upon request. (Currently at the dealership - due to overheating while driving (after engine had been replaced on 3/26/2025) 2. How was your safety or the safety of others put at risk? On [XXX], the engine failure occurred while the vehicle was in motion, causing a sudden loss of power and steering assist. This placed me and other drivers at serious risk, especially since it happened on the interstate and I was unable to maneuver or accelerate safely. On [XXX], the engine overheated in severe, bumper to bumper traffic. The owner’s safety was put at risk due to the high volume of traffic and little options to pull over. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the engine failure has been confirmed by both an independent mechanic and a Kia dealership. They diagnosed the engine as seized and non-repairable without a full engine replacement. Engine was replaced by Kia on March 26-28, 2025 and returned to the owner on March 28,2025. At the dealership's recommendation the owner replaced all the hoses and belts. Owner was assured all fluids had been refilled and engine repair was complete. Engine overheated while driving in Atlanta on [XXX]. Vehicle was towed back to the dealership due to the overheating and the noises coming from the engine compartment while running. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? So far, the engine has been inspected by the Kia dealership's service department and the engine was replaced on March 26-28,2025 To my knowledge, the manufacturer has not inspected the vehicle. All inspections were performed by th INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2017 Kia Sportage. The contact stated that the engine was consuming an excessive amount of engine oil. There were no warning lights illuminated. The contact was continually checking the engine oil level. The vehicle was taken to an independent mechanic who determined that the oil level was extremely low while receiving an oil change. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The failure mileage was approximately 72,000.