2021 Kia Seltos Powertrain & Transmission Problems

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.

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.

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.

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.

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.

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.

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.

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)

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.

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.

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.

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.

My 2021 Kia Seltos has an active safety recall related to the engine (Recall #SC336). The dealership (Darling's Kia, Formerly Van Syckle Kia in Bangor, ME) scheduled a repair but canceled it due to needing a "software update." I was told there is no timeline for completion and that no loaner or alternative vehicle would be provided. I am concerned for my safety and transportation, as the recall affects piston oil rings that can cause engine damage, stalling, or fire. Kia consumer affairs acknowledged the delay but provided no resolution or support. This recall has been open for months and is still unresolved.

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)

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.

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

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.

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.

My car was checked for a recall regarding the vehicle burning oil and the piston rings. The fix for it was a new engine. When my car was checked for the recall, it was determined to be unaffected by the issue mentioned. However, I got an oil change approx. 1.5 months ago and at this point I have had to add oil to the car on two different occasions since due to the oil burning so quickly. The oil is also very, very dark. This indicates that the oil is burning significantly regardless of the recall status. I find myself checking the oil weekly due to the worry that it will be empty. The recommended mileage in between oil changes for my car is 7,500. I have not been able to wait that long since obtaining the car 2 years ago.

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.