2021 Kia Seltos Powertrain (other) Problems

While driving normally at approximately 55 mph on the highway, the vehicle suffered a sudden, catastrophic, and spontaneous structural failure of the rear driver-side suspension and drivetrain. Without striking any road debris, potholes, or other vehicles, the entire driver-side rear wheel, wheel assembly, and structural axle components completely fractured and ejected from the moving vehicle. An eyewitness at the scene explicitly confirmed the nature of the failure, stating on video that they observed the 'entire rear axle just come right out' while the vehicle was in motion. The vehicle sustained extreme structural damage, completely disabling it on a high-speed highway and creating an immediate, life-threatening situation. The vehicle is a low-mileage Certified Pre-Owned (CPO) unit with under 24,000 total miles on the odometer, indicating a severe manufacturing, material, or component fatigue defect rather than wear-and-tear. There were no warning lights or symptoms prior to the failure. The vehicle is currently being held at a recovery yard and is fully available for inspection upon request. A formal defect investigation has been initiated with the manufacturer, and the insurance provider is inspecting the sheared axle and metal components for structural forensic analysis

NHTSA ID

11754636

Incident

Jul 30, 2026

My 2021 Kia Seltos 1.6L Turbo GDI is experiencing a severe safety hazard involving catastrophic internal engine failure. The vehicle aggressively consumes its oil supply, running critically low within 1 to 2 weeks. On July 6, 2026, a certified Kia dealership pressure-tested the engine and formally documented "NO EXTERNAL LEAKS," while confirming the spark plugs are entirely "OIL COATED" due to severe internal burning. The dealership noted on the invoice that the vehicle was "9,000 miles due" for service. I must explicitly clarify that this mileage gap occurred because the engine burns through its oil so rapidly that standard interval changes became meaningless; I was forced to continuously top off the engine manually out-of-pocket with store-bought oil just to keep it from running dry and seizing while driving. Otherwise, all other oil changes were consistently done at Kia dealerships, and this excellent service history was even explicitly acknowledged and noted by a Kia Consumer Care representative on a recorded line. Furthermore, the engine builds extreme crankcase blow-by pressure that actively forces oil vapor out of the oil filler cap. This defect creates an immediate risk of sudden engine seizure, highway stalling, or an engine bay fire. Kia Corporate Consumer Affairs has refused to authorize safety repairs or diagnostic testing under TSB ENG222, issuing a blanket denial while ignoring an imminent safety failure diagnosed by their own technician.

NHTSA ID

11751424

Incident

Jul 6, 2026

My Kia has been stalling, shaking, and just driving extremely badly for the past year. This day, I was driving on 55, and the car just stopped and stalled in the middle of highway near Berwyn, IL. This was extremely dangerous and could have honestly been life threatening. I pulled over, turned the car off and on, and was safely able to drive it to Berwyn Kia. Unfortunately, this was not the only time that this has occurred and I’m assuming will not be the last. In addition, I was charged $500+ to replace piston rings that were recalled on other models that were not recalled on my model, even though the same year was recalled.

NHTSA ID

11748897

Incident

Nov 13, 2025

Multiple times the car has shut off while driving. It did receive the PNSS sensor thing from the dealership 2 years ago. It has done this while my wife and kids were in the car in a busy roundabout. There are known engine issues with this model. Kia dealership is dragging their feet and “can’t recreate the issue.” (because it happens randomly) They ran “tests” and they all came back with “no issues.” Dealer states that they are waiting to hear back from the tech line at Kia. Service advisor said to me that they may just give me the car back because they can’t find anything wrong. And the “we would essentially have to wait for a complete component failure.” It is available to be inspected. There were no warnings at all and it has done it at random times in seemingly normal conditions. It receives routine maintenance and after my last oil change my mechanic (not from Kia) said that they found metal shavings in the oil and that there was only 1 qt of oil. And recommended that I talk to the dealer about engine replacement. The last time it shut off was June 4 and and it has been at the dealership since June 15th.

NHTSA ID

11746505

Incident

Jun 4, 2026

The car is available for inspection upon request. Safety was put at risk due to the cars potential to break down, or catch fire, due to high volumes of oil consumption and leakage from the piston rings. This was part of a recall campaign (#SC336 PISTON OIL RING), where we had two authorized Kia dealers inspect and claim the car "passed" their test. Recently, we had a catastrophic engine failure due to the piston rings, where we feel the fix was insufficient given the failure point (piston rings). There were no warnings or symptoms prior to failure, when driving at a low speed the car stalled and the oil pressure warning light came on briefly. After that, we parked the car immediately and had it towed for inspection. Our concern is the fix was allegedly implemented in July 2025, but there is no note in our maintenance record that the fix was even implemented.

NHTSA ID

11742348

Incident

Jun 3, 2026

This vehicle burns oil excessively. From everything I've seen says this should be under recall but the Kia dealership tells me it's not because it's over 60,000 miles and I'm the second owner. They offered to do a oil consumption test for $900. I've already read complaints about this engine locking up and people being seriously injured. I have to put oil in it every thousand miles or so. For a newer vehicle this is unacceptable and Kia should be taking care of this. This is absolutely going to get someone killed when their engine seizes. The transmission on this vehicle also has issues that have complaints littered through the message boards. KIA knows it's going to fail and get someone killed as well. They dont care as long as they get your money. Unacceptable.

NHTSA ID

11737236

Incident

May 11, 2026

On April 7, 2026, the vehicle experienced a 'quiet fade out' stall while in motion, resulting in a total loss of motive power. The dealership (DCH Kia of Temecula) confirmed cylinder scoring and referenced Techline Case 26022952. This failure is identical to the conditions described in the NHTSA Campaign 25V-099. The dealership is currently refusing to classify the repair as a Campaign Repair, which would include the mandated Lifetime Engine Warratny, and is instead attempting to process it as a discretionary 'Goodwill' repair to avoid federal safety requirements.

NHTSA ID

11731052

Incident

Apr 7, 2026

Engine stalled at stoplight. Was able to restart and pulled into closest parking lot where it began idling hard. Check Engine light turned on. Checked oil and it was bone dry (no signs of oil leak/burning beforehand). After adding about a quart of oil, while in park I revved the engine slowly, but it would stall out if it went over 3000 rpms and idle even harder. My basic code reader popped for P0014 and P0017 (crankshaft/camshaft position). Had to have it towed to the local dealer for safety. 75,400 miles on it and my VIN has not been part of recalls. Requesting an investigation to include more VINs as these issues point to a prior recall resulting in engine replacement.

NHTSA ID

11722774

Incident

Mar 4, 2026

Shuddered into limp mode at a stop sign. Has a sever shudder that throws it into limp mode, loses ability to drive in reverse and then loses ability to drive at all. Has issues shifting gears while driving causing the engine to rev itself while driving. Vehicle has left me stranded on multiple occasions. Has nearly 75,000 miles and I've put just over 4,000 of those on it since acquiring it at the end of October/Beginning of November.

NHTSA ID

11720054

Incident

Feb 1, 2026

My Seltos had a recall in 2021 (recall number SC209) because the piston oil rings were not property heated which can result in engine damage. The problem was supposedly repaired in 2021, yet in 2026 at 50,000 miles I am having piston notice problems and the engine light is constantly lit. The car has stalled on several occasions. I am being told that my vehicle with only 50,000 miles needs a brand new engine block and transmission. The recall was a safety recall to prevent the engine from stalling, risk of a crash and increased risk of fire. Although the issues with my vehicle are clearly as a result of the piston issue which were supposed to have been fixed they obviously were not and I am now experiencing all issues of the recall and bad engine. Kia of Round Rock is refusing to make this repair correctly and are asking me to pay for the new engine and transmission because they say it is out of warranty. That being said, had the recall problem been correctly resolved in 2021 I would not be having these same problems will fall directly in line with the issues resulting in the recall.

NHTSA ID

11718721

Incident

Jan 31, 2026

My vehicle is included in NHTSA Recall 25V099 / Kia SC336 for defective piston oil rings. The vehicle has experienced stalling, loss of power, knocking noises, and oil consumption. The engine behavior is unsafe and consistent with recall-related engine damage. Kia closed my case based on a dealer’s subjective noise judgment, but no mechanical engine testing (oil consumption, compression, or cylinder inspection) was performed. The recall remains incomplete and the vehicle continues to present a stalling and fire risk.

NHTSA ID

11714627

Incident

Jan 27, 2026

I See recalls on transmissions but i don't see one on mine and it is having the same problems as the other Seltos not sure way it's not on a recall list

NHTSA ID

11713997

Incident

Apr 20, 2025

Piston oil ring recall update complete in July 20 25. A month later key fob battery dies. Replaced key fob battery every other month since recall. September 20 25 had brakes and rotors changed at dealership since then anti-slip alert has triggered twice on dry roads. Light comes on then immediately goes off. Remote car starter stopped working in December. Dealership had no resolution for key fob issues and has not been able to replicate anti-slip issue. Dealership currently has vehicle to attempt to replicate issue and to look into the remote car starter issue. This is unsafe because the car automatically shutters and feels uncontrolled slip comes on also causes issues when key fob consistently dies every other month and get alert, letting me know that the key fob has died. And while the remote car starter is not a safety issue, it is all tied in with the electrical issues that are happening. The issues started after the recall was added to my vehicle.

NHTSA ID

11712117

Incident

Jan 3, 2026

THE CAR WAS MAKING A GRINDING SOUND, VIBRATES, SLOWS DOWN. GRINDING SOUND IS LIKE GRINDING GEARS OR A SNOWPLOW SCRAPING PAVEMENT. THE ENGINE WAS REPLACED IN APRIL BECAUSE OF RECALL. I ONLY HAVE 23765 MILES ON IT BUT ORIGINAL 5 YEAR WARRANTY EXPIRED ON 12/09/2025. THE SAME NOISE STARTED AGAIN ON 12/10/2025 AND IT WAS TOWED TO DEALER I BOUGHT FROM ON 12/10/25. The master warning light came on 12/10/25 incident and some text. There was traffic so unable to read it and light went off.

NHTSA ID

11705022

Incident

Mar 17, 2025

I am writing regarding my vehicle, a 2021 Kia Seltos LX - VIN Number [XXX] , which is subject to a recall NHTSA #25V099, Manufacturer Recall Number SC336. I was informed of the recall April 2025 and have since experienced engine stalling while driving on the highway with my young children with me, abnormal engine noise, complete oil loss and eventually complete engine failure. Unfortunately, this defect caused my vehicle to become unsafe and completely inoperable for the last 8 weeks. Kia said "We have completed the SC336 Piston Oil Ring recall, and your vehicle did pass. This means that the failure of the engine is not covered within the scope of that recall. This vehicle also does not have Kia warranty coverage active now due to age and miles. At this stage, Metro Kia does not have any further recourse for warranty coverage." My kia was stalling on the highway, complete oil loss where it was bone dry which led to engine failure. How did the vehicle "PASS" when EVERYTHING from the description of the recall is EXACTLY what happened to me? This is absolutely wild that Kia is refusing to do anything about this vehicle. It is a 2021, with 65,000 miles on it. The repairs are over 13K and I am being told I would get nothing for the car if I traded it in because it is worth nothing. Because of this situation, I have experienced a complete loss of transportation and have been relying on other methods of transportation and emptying my bank account for numerous towing visits to and from the dealership. Kia has not fixed the recall and instead quoted me over $13,000 to repair the car. I have enclosed copies of relevant documents, including the recall notice, service records, and any related correspondence. I messaged the BBB and attached Kia's response to that, as well as an email with the service advisor at Kia. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11702377

Incident

Oct 1, 2025

My 2021 Kia Seltos is experiencing engine problems that match the piston-ring defect involved in Kia Recall SC336. I first took the vehicle to the dealership in August 2025 for excessive oil consumption and engine knocking. The dealer documented the engine was 1 quart low and stated the oil was “most likely being used internally getting past the piston rings.” However, they only performed the software update from SC336 and did not perform any internal engine inspection. Since that visit, the condition has significantly worsened. The vehicle is now consuming more oil than before, the knocking/ticking noises have become louder and more frequent, and fuel economy has declined. I am adding oil between changes to keep the engine from running dangerously low. There are no external leaks, so the oil is being burned internally, which is consistent with piston-ring failure. These symptoms are identical to other Seltos vehicles already included in the recall, yet my VIN is not currently part of it. The progression of engine noise and oil consumption raises serious safety concerns, including potential engine failure, loss of power, or stalling while driving. The dealer acknowledges the internal oil use but refuses further diagnostic work without direction from Kia. I am reporting this because the defect is worsening and poses a safety risk, and the vehicle appears to have the same failure pattern as recalled engines.

NHTSA ID

11701824

Incident

Aug 15, 2025

After being stopped while driving when the car turns off, when re-starting sometimes the car will turn off, I have to put my car into park in the middle of the street to restart the engine. Other times, it will start alerting me to "push the start button" as if my car isn't on already. This causes me to come to a complete stop in the middle of the intersections and puts me at risk.

NHTSA ID

11693088

Incident

Oct 13, 2025

We have a 2021 Kia Seltos. It was purchased 09/2023 as a certified pre-owned vehicle. Purchased from Putnam Chrysler Doge Jeep Kia in Putnam CT. It started using oil, about a quart a week. No oil spill on garage floor. Received notice of recall. We took it to the dealer for the recall in May of 2025. We were told it passed their inspection and the recall was entered as completed. Oil continued to run out. My wife could hear valves clicking and she new the oil was low. All this information was conveyed to the dealer and they had us bring it back in 6/2/2025. At that time an oil consumption test was performed. Die was added to the oil and was told to drive 1000 miles. Returned to dealer on 06/27/2025. Was told the test result showed no oil consumption. On [XXX] we were driving to market. The check engine light came on. I pulled over and checked oil. It was empty. Returned vehicle to dealer. Now they said the head was bad and the engine needed to be rebuilt. Called Kia customer service and was told that they would not replace the engine and my extended warranty would cover the cost to replace the head. This is my wife's car and I do not think it will be safe to drive. My email address is [XXX] . [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11688319

Incident

May 5, 2025

In April of this year I took my 2021 Kia seltos to Ourisman Kia of Fairfax (10601 US-50 Fairfax, VA 22030 United States). I took it there to get the piston oil ring recall taken care of, or at least looked at. They said it could take a couple of days so I left my car there. They had my car perked in a lot about a mile away from the dealership for a week or so and on April 19th they called me and stated that I could come pick up my car because it did not pass the recall. They stated that the recall was not available at this moment due to how many engines were back ordered. They stated it would take 3-6 months to get the engine in and do the actual recall. 4 months pass with no word from the dealership at all, so I call them Thursday August 14th at 11:21am, and I was told by Marko that my car had passed the recall and that I no longer needed the recall done. He then told me that the engine had never been ordered. My car sat in a lot for a week, untouched. I get told I need a new engine. Then I’m told I no longer need a new engine. I’m terrified of what could happen to my car, myself, and my passengers if my engine were to catch fire like the recall says it could. The fact that I was told my car needed a new engine and then without retesting my car that dealership says that I don’t need the engine anymore is beyond unprofessional and sketchy.

NHTSA ID

11681556

Incident

Apr 19, 2025

The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed, the RPM fluctuated erratically before the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle was able to be restarted. After restarting the vehicle, the vehicle returned to normal functionality, but the failure became a regular failure. No warning lights were illuminated. The vehicle was taken to the dealer and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. 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 42,000.

NHTSA ID

11677648

Incident

Apr 15, 2025

Mileage

42,000 mi

Oil pressure light illuminated, extreme engine knocking, failed acceleration power and engine stalling while driving. Towed to dealership. Was told the vehicle "passed" the oil piston ring recall test and refusal of Kia to replace engine.

NHTSA ID

11674622

Incident

Jul 11, 2025

Awd coupler which impacting steering and the car shuts off while driving , all the issues accured after recall work was done .Updated the software and the car started to have problems.

NHTSA ID

11670315

Incident

Jun 25, 2025

Issue started to occur around 40,000 miles, when excellerating from a stop to about 30mph and when turning vehicle will feel as if it’s grinding or clunking in the front power train area. As miles increase on vehicle issue seems to happen more frequent.

NHTSA ID

11667032

Incident

Jun 15, 2025

Kia issued a recall for defective piston oil rings. The recall was performed on my 2021 Kia Seltos and showed that I needed an engine replacement. The day that the dealership tested my car Kia suspended the recall stating the test was inaccurate. When the recall test was reissued my car passed and was denied for a new engine. An oil consumption test was performed on my car and the results were that my Seltos goes through 2 quarts of oil every 1,000 miles. Kia will not do anything because I do not have records of 1 oil change that was done at my home. The recall stated the car is at risk for a fire hazard because oil could be seeping places it is not supposed to be. The car will also shut off while being driven if the oil gets below 2 quarts low.

NHTSA ID

11665851

Incident

Jan 5, 2025

Got to engine light error codes: P030100 and P030000. Happened 3 times: 1st time had loss of power and engine light flashed, could not accelerate, and vehicle shuttered. Took to world kia north San Antonio. They cleared the code. It ran fine for a while and same problem occurred. Took back to world Kia north. They had it quiet few weeks, finally got it back, they said they took it on a 60 mile road test no problems so gave it back. I drove it maybe less 2 hours after getting it back and the same problem happened loss power would not accelerate and engine light flashed but did not come on. Called Kia right when happened and brought it right back world Kia North and the service manager said to keep it running so they can see what going on, and they finally noticed the same thing. So it been at dealership since then.about month has past and it not been repaired yet. It been serviced every 5000 miles and been taken care of since I owned it! I have looked up how lot people with the S/X models have had same problems and many recalls on seltos and souls due to same problems. I’m a 100 disabled vet and having a vehicle get me to the hospital reg important. I was given a loaner car which was great so wanted to share this.

NHTSA ID

11665474

Incident

Apr 20, 2025