What 158 owners told NHTSA about the 2018 Kia Sportage Phev Phev

I received a voluntary emissions update letter from kia, and although it was voluntary, the letter said failure to update could be considered lack of maintenance. The update was performed on XXX at Dorsch Ford/Kia in [XXX]. The vehicle ran poorly from that day forward. I gave it a couple of weeks to insure that the system could learn my driving habits. I then went to the Dorsch service department to report my issues. The service writer {Andy} said he hadn't heard of any issues with the update. I had him log in my issues to have a record that I complained. I returned several more times and talked to other service writers who told me that if they would check the vehicle and found nothing that I would have to pay service fees. the vehicle jerks and up/downshifts frequently and almost stalls sometimes when accelerating from a stoplight. It will lung periodically when navigating a parking lot at low speeds. It frequently searches for a different gear in traffic. To be clear, my car ran perfectly before this update. I asked them to put the previous tune back into the car but they said they can't do that. The car runs fine sometimes but the uncertainty of the jerking and shifting at improper times makes it dangerous to drive. Also almost stalling at an intersection is very dangerous too. I doubt that I am the only one to have this problem. Please help in any way you can to get this fixed without me having to spend money to correct a factory/dealer initiated problem Thank you for all your help. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11741993

1. Component or System Malfunction & Availability Component/System Failed: An unidentified component within the engine compartment failed, resulting in a sudden, catastrophic thermal event (engine fire). Odometer Reading: 100,415 miles at the time of the incident. Available for Inspection: No. The vehicle was completely destroyed by the fire and is a total loss. 2. Safety Risk Assessment The vehicle was being driven at highway speeds on a major freeway by my 21-year-old son, Brennan Font, when the incident occurred. The sudden presence of heavy smoke and intense heat entering the cabin while traveling at high speeds created an immediate, life-threatening hazard. This forced an emergency pullover on the shoulder of a busy freeway. Moments after exiting, the vehicle became fully engulfed in flames, presenting a severe risk of explosion and injury to the driver and passing motorists. 3. Verification & Third-Party Inspection Reproduced/Confirmed by Dealer: No, the sudden and destructive nature of the failure prevented any prior diagnostic testing. Inspected by Manufacturer/Authorities: The vehicle has not been inspected by the manufacturer. However, the incident was handled and documented on-scene by local authorities. A formal police report was filed by the Ventura Police Department (Report Number: 26-31369, responding officer: Officer Steinberger). 4. Warning Symptoms and Timeline There were no prior warning lamps, dashboard messages, check engine lights, or abnormal symptoms leading up to the failure. The onset of heavy smoke and heat was sudden and instantaneous. 5. Detailed Incident Description Brennan immediately steered the vehicle to the shoulder of the freeway. As soon as he brought the vehicle to a stop and attempted to park, open flames breached the hood of the car. He successfully exited the vehicle without injury and immediately dialed 911. The vehicle burned completely before the fire could be extinguished. Fortunately, no injuries were reported.

NHTSA ODI 11740223

Component/System Failed: An unidentified component within the engine compartment failed, resulting in a sudden, catastrophic thermal event (engine fire). Odometer Reading: 100,415 miles at the time of the incident. Available for Inspection: No. The vehicle was completely destroyed by the fire and is a total loss. 2. Safety Risk Assessment The vehicle was being driven at highway speeds on a major freeway by my [XXX] [XXX [XXX] incident occurred. The sudden presence of heavy smoke and intense heat entering the cabin while traveling at high speeds created an immediate, life-threatening hazard. This forced an emergency pullover on the shoulder of a busy freeway. Moments after exiting, the vehicle became fully engulfed in flames, presenting a severe risk of explosion and injury to the driver and passing motorists. 3. Verification & Third-Party Inspection Reproduced/Confirmed by Dealer: No, the sudden and destructive nature of the failure prevented any prior diagnostic testing. Inspected by Manufacturer/Authorities: The vehicle has not been inspected by the manufacturer. However, the incident was handled and documented on-scene by local authorities. A formal police report was filed by the Ventura Police Department (Report Number: 26-31369, responding officer: Officer [XXX] ). [XXX] ymptoms and Timeline There were no prior warning lamps, dashboard messages, check engine lights, or abnormal symptoms leading up to the failure. The onset of heavy smoke and heat was sudden and instantaneous. 5. Detailed Incident Description [XXX] immediat [XXX] red the vehicle to the shoulder of the freeway. As soon as he brought the vehicle to a stop and attempted to park, open flames breached the hood of the car. He successfully exited the vehicle without injury and immediately dialed 911. The vehicle burned completely before the fire could be extinguished. Fortunately, no injuries were reported. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11740228

The oil was leaking somewhere not on the motor not under the car not blowing black smoke. I kept adding oil to it. No oil light. I was told not to park between 2 houses or in my garage it could catch on fire. I took it in several times and they did all kinds of stuff motor wash knock sensor was replaced wiring harness was corroded was slipping out of gear and other issues. And now it doesn't run because of the motor issue and they refused to fix it because I didn't have oil change receipts they are the ones that took care of that there was no oil to change I kept adding it. I have all of the detailed work invoices of what they did to it. I've been without a car for a year now they said it's not under warranty my car has several of the recalls. They wouldn't do all of the stuff they did if it wasn't necessary and trying to locate the problem.

NHTSA ODI 11738238

My Kia Sportage has developed a loud engine knocking noise, which I understand is a known issue with Kia engines. I am concerned that this indicates internal engine failure and could lead to sudden engine seizure while driving, creating a serious safety hazard. The dealership denied repair assistance due to lack of oil change records, but the issue appears consistent with widespread engine defects reported in similar vehicles. I am requesting investigation into this issue due to the safety risk it poses.

NHTSA ODI 11729596

I've had an oil leak for a couple of years, typically having to put in 5 - 7 quarts of oil in between oil changes. In 2025 I had my spark plugs and some oil seal replaced it was quite expensive to have done. 6ish months later my 4th cylinder started misfiring. I took it to the repair shop. They performed an oil wash and it seemed to fix the misfire issue at the time. 3 months later it started to misfire again. I took it back to the repair shop and had them replace all 4 of the ignition coils, which did not help. They recommended I take it the Kia dealer. They believe the engine is burning oil which why it has such high oil consumption and that they believe the engine should be under a warranty. I need a safe vehicle for work and travel and frustrated that I am having to pay so much money just trying to get my vehicle repaired so it is.

NHTSA ODI 11727555

On 1/26/2024 approximately 9am, my husband had been driving on the highway for about 2 hours and pulled over to shut his eyes for a few minutes. He shut off the engine, closed his eyes and immediately smelled smoke. Black smoke began coming from under the hood and quickly got worse. He quickly got out of the car and walked away. He heard a loud pop sound and the engine area was engulfed in flames. He called 911. It took about 10 min for the fire dept to arrive and by then, the fire was being fed by the gas in the tank. They tried to put out the fire but the car burnt completely due to the gasoline. No one was hurt, thank goodness. There were no active lawsuits that I could find to get some compensation for this loss. We had to pay our high deductible and lost personal belongings in the car. This car did have an ongoing oil consumption issue. We had to replace the oil more frequently than normally required and it used much more oil than normal. We were told we had to wait for engine failure to get any kind of resolution.

NHTSA ODI 11727238

2018 kia sportage had oil consumption issue but did not notify car owners, lead to complete engine failure of my car at only 117,000 this car is part of a class action lawsuit due to bad engineering , kia would not replace the engine on this even though i submitted all maintenance records, they had terrible communication when i was calling for months to file a claim with corporate, wouldnt return phone calls, supervisors not doing their jobs, car was sitting on lot for almost three months, still have loan on it, was at loss of work income etc..they should be held liable for bad engineering of cars sportage only had 117,00 miles when engine went out and we had oil changes, maintance and kept it in great shape this was confirmed at montrosse kia complete engine failure

NHTSA ODI 11722699

At 113,000 my engine failed. It was determined that low compression occurred due to the first cylinder failing. I’ve been having excessive oil consumption since about 60k.

NHTSA ODI 11721192

My vehicle broke down on my family 2 hours away. The suv started engine failure with the engine light coming on then the rpm’s reved up to 4000 and started chugging. We stoped at the gas station shut the vehicle off and got it towed home to a local shop. I have the 2.4 engine and less then 130,000 miles on it and the shop said my piston is gone and my engine is bad.

NHTSA ODI 11720802

Took my car for the theft recall and had it performed, my vehicle was stolen last night and the theft used a USB charging cable to steal it, the recall did not fix this

NHTSA ODI 11713189

My vehicle suffered from a catastrophic engine failure while driving on the highway. The vehicle stalled at highway speeds (55mph), during rush hour. Causing a near rear end collision. From this point on my vehicle was unable to reach speeds of 30 Mph. This failure is consistent with a defect in the Theta II engines that has been subject to recalls. The Theta II engine recall is under a soft recall. It is not known to the public unless it happens to the owners vehicle. This sudden stall at highway speeds jeopardized the safety of the driver (myself) and the people and vehicles behind the driver.

NHTSA ODI 11711020

My 2018 Kia Sportage (2.4L Theta II GDI engine) suddenly triggered diagnostic trouble code P1326 (Knock Sensor Detection System – Detection of Excessive Connecting Rod Bearing Wear) and entered limp mode at 111,595 miles on Sep 13, 2025. The vehicle is now speed- and RPM-limited to protect the engine from catastrophic failure. This is the exact failure mode covered under the well-documented Hyundai/Kia Theta II engine defect that has led to thousands of engine seizures and, in some cases, vehicle fires. Kia implemented the Knock Sensor Detection System (KSDS) software update (Campaign SC200) on this VIN, yet the system has now correctly detected excessive connecting rod bearing wear. Despite the vehicle falling squarely within the class vehicles listed in the 2020–2023 Hyundai/Kia engine litigation settlement (In re: Hyundai and Kia Engine Litigation II), Kia’s settlement VIN-check website [XXX] ) incorrectly states this VIN “has not been matched with an eligible Class Vehicle.” I am concerned this may be used as a pretext to deny the lifetime short-block warranty repair that other identically-equipped 2018 Sportage owners have received at no cost. Continued driving risks sudden engine seizure or fire, which NHTSA has previously investigated under PE21-003 and related actions. I am forced to keep the vehicle parked until Kia honors the repair or provides clear justification for denial. I can no longer safely use the vehicle for normal transportation Requested action: I request that NHTSA investigate Kia’s inconsistent application of the Theta II lifetime warranty and settlement benefits, particularly when the KSDS system (installed by Kia) has triggered the exact warning it was designed to detect. This appears to be a continuing safety defect affecting 2011–2019 Kia vehicles equipped with the 2.4L Theta II GDI engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11702785

Due to excessive oil consumption and blow thru to catalytic converter, and burning of oil in the converter clogged up my catalytic converter as seen in pics causing exhaust fumes to enter cabin and engine not run properly. Driver or passenger must open windows to get fresh air. I had to have converter replaced. There is still periodic fumes that enter cabin even with new converter because engine is still consuming excessive oil . This should be addressed to and rectified through KIA corporation. Thanks

NHTSA ODI 11696918

The original factory engine is malfunctioning, causing excess oil consumption -- at or over one quart consumption per 1000 miles -- believed to be caused by fouled piston rings. It is a known defect for this and similar KIA engines. Issues and remedies outlined in KIA Technical Service Bulletin 222. The vehicle and engine are available for inspection upon request. Our safety and the safety of others is continuously at risk in the event of engine failure and/or vehicle breakdown in city or freeway traffic, and in our rural location. Safety is also a factor in the event of vehicle breakdown which would put vulnerable passengers (five year old granddaughter, etc.) in danger if such event occurred in traffic or during weather extremes. The oil consumption problem has been confirmed by Butler KIA. The engine was inspected by the manufacturer via Butler KIA only in the form of three 1000-mile oil consumption tests from May through October 2025. Dealership personnel began the first test with an oil change, and then inspected/verified excess oil consumption at each 1000 mile interval. An oil warning light illuminated between regular (4489 historical average interval vs 7500 manufacturer-specified intervals) oil change intervals, and immediate inspection revealed the engine oil was 2.5 quarts low. Oil was added and owner tracking was commenced, verifying excess oil consumption.

NHTSA ODI 11696475

There has been High oil consumption after 100,000 miles and the low oil light has shown. It will burn more than a quart in less than 1,000 miles.

NHTSA ODI 11695968

My vehicle make and model has been documented to have had engine issues which has caused car fires from the engine compartment from what has been documented this is my best guess.

NHTSA ODI 11695264

The code P1326 keeps popping up on my dash board even after changing it that part out which is claimed to be the knock sensor.I researched it and it said something with the rod bearings and my mechanic personal mechanic had mentioned it’d be best to swap the engine, and told me about Kia recalls on certain make and model. My vehicle falls into the recall list of year and make and model… but my vin isn’t on the recall list, yet it is doing the same exact thing that has been listed up for recall. I am concerned about my safety, engine stalls and looses power, how can I go about this?

NHTSA ODI 11693750

My 2018 Kia Sportage (VIN [XXX] ) experienced complete engine failure due to low compression/internal combustion chamber failure. The vehicle lost power while driving on Sept 30, 2025, and had to be towed to [XXX] Kia in Dayton, OH. This same dealership previously performed an oil retention test in Aug 2024 which failed, identifying a defective engine. Kia was aware of the issue but declined to replace the engine at that time. The failure pattern matches Kia’s known engine defect. Kia Consumer Affairs (Case #25572677) has denied goodwill assistance despite this safety-related engine failure and prior diagnostic documentation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11692091

I started my car and it started shaking violently, and would jolt back and forth, I would be on the highway and the speed would decrease rapidly and overheat slightly to pick up speed

NHTSA ODI 11685150

The engine has been consuming oil. When I brought it to the attention of the dealership the recommendation was to oil consumption test and also to clean the combustion chamber. On this car they lost a class action lawsuit for these engines consuming oil. They are using their faulty manufacturing processes to get more money out of consumers. The only way they said they would approve an engine replacement is to have the engine seize up while driving. This is unsafe for the driver and also for the other motorists. This would put the driver and other motorists at risk because the car can become uncontrollable and could cause an accident. The car has been inspected by a dealer multiple times and they said they would not replace it until the engine seizes. Also Kia corporate said the same thing even though they lost a class action lawsuit. The warning lights come on when the oil is low. Also check engine lights have been coming on for the oil issue. Kia should be replacing these faulty engines and the consumer should not have to pay for tests to be able to get the engine replaced that is under warranty.

NHTSA ODI 11675201

My 2018 Kia Sportage (VIN: [XXX] ) triggered a check engine light and entered limp mode. Diagnostic scan revealed DTC code P1326, which is associated with the Knock Sensor Detection System (KSDS) and often linked to engine bearing failure in many affected Kia models. This happened at approximately 120,000 miles while driving under normal conditions. The car now runs in reduced power mode, making it unsafe for highway use or commuting. I contacted my local dealership, who confirmed no recall or campaign was active, despite this being a widely known and reported safety defect in Kia’s 2.4L GDI engines. I am requesting NHTSA to investigate this issue further, as many Kia and Hyundai vehicles with this engine have experienced sudden failures due to this defect. Kia should extend warranty support or issue a recall to prevent dangerous engine shutdowns. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11671338

Excessive oil consumption and the engine is part of a "silent" recall. I would like my engine to be replaced before it blows up and causes serious injury or death. I do regular oil changes and I can't keep adding oil daily. If they knew about this issue why wasn't there a mass recall to get this fixed.

NHTSA ODI 11670456

My check engine light has been on for some time . It will go off for a day and a half and then come back on . I was told by one garage that it was the catalytic converter. I have 99,339 miles on . It was tuned up and the light had gone off until the next day . Runs good and body is in great shape . I’m disappointed with this since it’s not covered ! And my lights are not working , the garage said it was a bad connection .

NHTSA ODI 11664898

I had an oil change done because my engine oil level was showing low on the dipstick. I had just had an oil change about 2 months prior so it was not due but I thought that maybe there was an oil leak . On the way to my mechanic shop the check engine light came on so I had them to check it out. There were no visible oil leaks and they said they oil was extremely low. They did the full oil change and told me to bring it back 200 miles later to see if there was any oil lost. 200 miles later the car was down an entire quart of oil. My mechanic suggested I call Kia to advise them of the engine oil consumption issue. His words. I called Kia and was advised to bring it into the dealership for a diagnostic and consumption test. I am bringing it tomorrow morning but I don't know what will happen after that. I see the recall for other models with this same issue but not for my model.

NHTSA ODI 11660461