2021 Kia Seltos Engine
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
Dealer has denied to look into recall claiming that it is part of a warranty extension when it is a safety recall due to the issues I am experiencing. The car began to stall not even a year into me owning the vehicle. I had barely had the car for 4 months, not even enough time for my first oil change and my car stalled on me in a parking lot as I was driving. It shut off. It has done this multiple tomes randomly since. Then one day after work my car wouldnt start at all and when we eventually got it started, it would then stall every 15 feet that id be able to drive it. The entire car just shuts off every time. All of my lights were still working, but the engine itself would shut off.
I have a KIA Seltos 2021 2.0L, Odom 90288, the engine has failed. I was driving when the engine failed and refused to turn over, start. I was on my way to work at approximately [XXX] when in the middle of a left hand turn at the intersection of [XXX] and [XXX] the engine failed, car shout off which left me in the middle of the street (it was still dark outside, and I was stranded in the middle of the street). Prior to this engine failure I received an email directly from KIA stating that there was a recall on my engine and the car needed to be serviced, however I was unable to make my scheduled appointment because the engine failed, prior to. I recently took my car into Bayside KIA of Waldorf however they are refusing to cover the car and the repairs in correlations to the engine recall. Prior to have the car diagnosed by Bayside KIA the car was inspected by JJ Auto Service of Waldorf, who confirmed that the engine failure may be in correlation to the open recalls on my 2021 Seltos. Three days prior to the engine going out the check engine light came on, and I heard knocking under the engine which is the leading reason I scheduled the service inspection with KIA. I believe my engine failed in correlation to recall #21 V259000 (KIA Recall #SC209). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I am reporting a failure of the remedy for NHTSA Recall 25V099 (Kia Recall SC336). My 2021 Kia Seltos with the 2.0L Nu MPI engine is exhibiting severe engine knocking and high oil consumption. Despite providing video evidence of the knock to Archer Kia (Houston, TX), the dealership refuses to acknowledge the defect or perform the required borescope inspection. This defect is a documented fire and stall risk. I am being denied a loaner vehicle despite having a medically fragile child who requires this vehicle for surgery and doctor appointments. The dealership is utilizing 'oil consumption tests' as a delay tactic to avoid performing the recall-mandated engine replacement. This vehicle is unsafe to operate.
The contact owns a 2021 Kia Seltos. The vehicle was serviced under NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING), but the failure occurred. While the contact's wife was stopped at a traffic light, the vehicle stalled. While the accelerator pedal was depressed, the vehicle lunged forward and then stalled. The contact's wife was able to coast to the side of the road. No warning lights were illuminated. The vehicle failed to restart. The vehicle was towed to the dealer, where it was determined that there was no oil in the engine, causing the exhaust pin to be sheared off the exhaust camshaft. The vehicle was not repaired. The dealer informed the contact that when the vehicle was serviced in August of 2025, the engine was inspected; however, the recall repair was not performed. There were no oil stains found on the ground, and there was no warning light illuminated, indicating that the oil level was low. The vehicle remained at the dealer unrepaired. The manufacturer was made aware of the failure and refused to perform the recall repair. The failure mileage was approximately 110,000.
We bought this 2021 Kia used and within a year the engine blew. There was a defect in the motor. It had just passed the warranty mileage.
[XXX] Kia Seltos engine stalled and then stopped running. Driver attempted to turn engine over with no success. [XXX] The 2021 Seltos was towed to Kia in Jacksonville Nc. Kia Jacksonville stated engine seized, performed a compression test of cylinders with failure. cylinder 1 had a 135 psi, cylinder 3 had a 105 psi. It was stated that cylinder 1 and 3 had excessive scoring on the walls. Prior recall fixes included SC209 on Jul 19, 2021 with a dealer code of NC072. Recall SC209A was issued on 4/13/2021 per a car fax report. Recall for Sc209A was issued before the Sc209 recall fix. SC209A was not fixed on Jul19,2021. In February 2026 SC209A was updated after the engine stalled, had cylinder scoring and inadequate compression in cylinders. Owner of the 2021 Kia Seltos paid $1304,91 after a goodwill assist was authorized by the General or Regional Manager of Kia Jacksonville NC. Service Manager stated that Engine does not qualify for a replacement under the recall for not meeting the workflow criteria issued by Kia. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
On [XXX], check engine light came on with P1327 (PNSS piston noise detection). History includes SC209 recall in 2021 (inspection passed, PNSS software added Feb 2022). Now at 94,000 miles with misfire P0304 on cyl 4 and timing correlation P0017—dealer refuses full engine replacement under recall. Service dealer insisted it would be safe to drive 300 miles to Billings, MT from my home base location. Got 5 miles down the road to be left stranded to walk back with no service on a 13 degree day. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2021 Kia Seltos. The contact stated that while driving 65 MPH up a slight hill, the vehicle shuddered significantly and failed to accelerate upon depression of the accelerator pedal. The check engine warning light then started flashing. The driver was able to pull over to the side of the road. The vehicle was taken to Hamlin Automotive on several occasions. The mechanic replaced 4 spark plugs, oil piston rings, and the camshaft; however, the failure persisted. The mechanic advised the contact that the failure might be related to the fuel injectors. Additionally, the mechanic had informed the contact that the vehicle might be experiencing excessive oil consumption. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling), and the vehicle was taken to the dealer for recall repair; however, the contact was informed that no issue was found upon inspection of the vehicle. The contact stated that while driving at 65 MPH, the check engine warning light started flashing. The driver pulled over to the side of the road. The vehicle was towed to the independent mechanic, where it was diagnosed and determined that the engine had failed and needed to be replaced. The vehicle was not yet repaired due to the cost. The contact related the failure to the recall. The manufacturer was contacted and referred the contact to the dealer for assistance. The failure mileage was approximately 72,000.
I had my car to a reliable mechanic who informed me of open recalls on my vehicle. The next morning, while I was driving, the engine started making a noise and I called a local Kia dealership. I was making arrangements to bring the car in for them to look at when the car stalled, and I got to the side of the road. While I was looking up the number to call for a tow service, a driver passed me and informed me there was a fire under my engine. Within five minutes, the entire car was engulfed in flames. I was very lucky. Someone told me and I was able to get out.
My 2021 Kia Seltos has experienced repeat internal engine damage related to oil consumption. An intake camshaft previously failed and was replaced by Kia. The vehicle has now suffered a second camshaft failure (exhaust cam) with dealer documentation of oil starvation. Prior recall SC336 was addressed only with a software update and no mechanical engine inspection. Despite documented oil starvation and repeat internal damage, Kia and the dealer have refused recall reassessment or engineering (Techline) review and are treating this as an out-of-warranty cam failure. The vehicle experienced timing issues and near-total oil loss prior to scheduled service, creating risk of sudden loss of power while driving. I am requesting investigation of recall adequacy and engine defect.
On 01/04/26, my vehicle’s Check Engine light came on and the engine was shaking. The next day, my mechanic diagnosed a P0301 code (cylinder #1 misfire), found signs of burning oil and cylinder damage in all cylinders, and noted the car had burned over 2 quarts of oil since the last oil change. He suspected faulty oil rings (previously recalled) and advised immediate dealer repair, warning of possible engine failure or fire hazard. The car had only 42K miles and should have been under warranty, but the dealer refused service because the code was cleared and said the warranty expired 4 months earlier. They claimed recall work was completed in June 2021 and would only help if the check engine light returned. Despite research showing codes are stored in the engine control system, the dealer insisted there was “no way to see the code.” After 10 days, the light didn’t return, so I picked up the car and continued driving, noticing a burning oil smell. On 02/02/26, I returned to the dealer, who offered only an Oil Consumption Test, stating it’s acceptable for the vehicle to burn 1.3 quarts per 1,000 miles—though the car’s oil capacity is just 4.2 quarts. The service advisor suggested I contact Kia USA, which I did on 2/06/26. Kia USA sent a repair order to the dealer, who claimed to be “working on the diagnosis.” Kia USA requested two more business days to follow up. GPS tracking shows the vehicle hasn’t moved except for parking since it was brought in.
My 2021 Kia Seltos (manufactured April 2020, ~94,000 miles) has the 2.0L Nu MPI engine affected by a known piston oil ring defect. Symptoms include piston noise, excessive oil consumption, rough idle, reduced power, and codes: P1327 (PNSS-detected knock), P0304 (cyl 4 misfire), P0017 (crank/cam correlation error). These indicate progressive cylinder wall scoring from improperly heat-treated rings, risking seizure or fire. Service history shows: • SC209 (Safety Recall 21V-259) inspection in Jul 2021. • SC209A (PNSS software update) in Feb 2022—explains why P1327 now triggers. • Other campaigns: anti-theft (CS2309/CS2312), AWD ECU (SC242/SC297), ECM logic (SA463). The defect progressed despite early recall work; dealers deny full engine replacement, citing prior completion or shifting coverage. SC209 has no mileage limit—progressive damage qualifies for re-inspection (vibration test, bore scope, compression) and free long block replacement if confirmed. You’ve faced loaner return demands before 2-week period, goodwill denials, and inconsistent coverage. The issue aligns with NHTSA concerns (e.g., AQ25001 on similar recall effectiveness).
When driving the car for a prolonged amount of time at a higher speed, the emissions from the motor back up into to the cabin once the car is stopped.
The contact owns a 2021 Kia Seltos. The contact stated while driving 45 MPH, the engine started making an abnormal loud knocking sound. The check engine warning light was illuminated. The contact was able to drive to the residence. The contact stated that the failure worsened while attempting to drive the vehicle to the dealer. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact related the failure to NHTSA Campaign Number: 21V259000 (Engine), which included the VIN. The dealer informed the contact that a claim could not be submitted to the manufacturer for the engine replacement approval because the contact did not have oil change receipts. The contact stated that the residence had previously caught on fire, and the contact no longer had the receipts. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was filed. The contact was informed that the case could be escalated to an unknown department. The contact had a follow up call with the manufacturer, but no further assistance had been provided. The failure mileage was approximately 24,000.
. Over consumption of oil causing engine failure
This 2021 Kia Seltos car’s engine has randomly seized up 4 times over the last year causing very serious safety concern. Fortunately, these 4 seize-ups happened when the powerless Seltos car could be safely directed to the shoulder of the road while driving in slower paced traffic. Each time this occurred, our 2021 Kia Seltos had to be towed; towed twice to a mechanic shop and twice to directly to the dealer. The mechanic diagnosed the problem as the vehicle using excessive oil resulting in the vehicle safety sensors shutting the engine down. However, in those instances when we towed the vehicle to the dealer, the dealership always obfuscated and gave us the impression that they were not taking our safety concerns seriously. They never adequately addressed our concerns and often conducted some minor repairs seemingly to placate us to get us down the road. None of their minor repairs worked or solved the problem. In each instance after their repair the problem repeated. We expressed our extreme frustration and concern for our life safety. We communicated to them that this vehicle’s engine has proven unsafe and that has randomly seize-up several times We have researched the 2021 Seltos and found that these Kia models have many serious recalls for multiple items including the problem that we have experiences with excess oil usage. It is our experience that our KIA dealership will not adequately address our concerns and will not take necessary measures to adequately address our very serious safety issues. We believe that our 2021 Seltos is a "Lemmon" and needs to be replaced, or at least its engine replaced. We hope this complaint results in serious action and that I'm not writing again indicating that this 2021 Seltos “Lemmon" vehicle has again seized up and has resulted in a life-threatening safety issue.
Car had 59,522 miles when I purchased it (now has 64,320), and after driving 1,500 miles, it began hot-idle stall with oil light indicator lit. Restarted and drove OK, but when slowing, it kept stalling. This also happened on the roads when slowing for a light or for traffic, posing a risk to myself and others. After 6-7 times and doing some research, this problem exactly matches the symptoms in Kia’s TSB ENG222 Rev 6. I had it towed to a KIA service center due to the concern that it can throw a bearing during stall (as well as be unsafe). Dealer performed combustion chamber cleaning and replaced the PCV valve ($1,000!). They asked me to keep a close eye on oil consumption. Over the next less-than-1,000 miles of driving, engine consumed 3 quarts, well in excess of Kia’s expectation of no more than 1 quart per 1,000 miles. The dealer contacted Kia’s technical assistance for help and was denied an engine replacement due to me being the second owner, out of power train warranty and just purchasing the vehicle, as well as indicating that the engine had previously been “fixed” pursuant to the TSB; however, clearly it is not fixed. I now unfortunately know that this problem is associated with the poor design of the engine and up to 20% of the owners who have had the problem “fixed” continue to have the same problem recur. The engine has barely more than 60,000 miles on it and was maintained, according to CarFax, rather flawlessly by the previous (and only other) owner. There is no way that properly built and appropriately maintained engine should fail with less than 60,000 miles on it unless there is something inherently wrong with the design or build of the engine. It also seems like a huge copout on Kia’s part to not honor their 100,000 mile, 10 year powertrain warranty simply because the car transferred owners (once), especially with the history of known appropriate servicing AND that the car’s engine has already failed the repair directed by TSB ENG222 Rev 6.
My 2021 Kia Seltos with the 1.6L turbo engine is burning an excessive amount of oil — about one quart every 800–1000 miles — and is showing blue smoke from the exhaust. A certified technician indicated that the likely cause is faulty piston rings, which is a known issue on this engine and has led to engine replacements in other Kia vehicles. The vehicle was purchased as a Certified Pre-Owned Kia, and I have maintained it properly. Despite this, Kia and the dealership and the certified preowned warranty company have denied warranty coverage, calling it "oil consumption," even though the oil loss is clearly excessive and mechanical in nature. This defect poses a potential safety hazard, as engine failure or oil-related fires could occur if the engine runs low on oil while driving. There are many similar reports online from 2021 Kia Seltos owners experiencing the same problem. I am requesting that NHTSA investigate this issue and require Kia to address these engine defects, as they appear to be widespread and potentially dangerous.
Complaint about KIA Safety Recall 25V099 I'm writing to let you know my concern about the safety recall I got for my Kia Seltos 2021. I received this letter on April 14th• and I took it to the dealership as soon as I could, to Federico KIA, at 1911 East Edwardsville Rd, Wood River, IL, 62095. I dropped off my car on April 17th and I was given a rental car the next April 18th and told that my car needed a new engine. Federico Kia kept the car for almost a month with no ETA for a new engine, according to what I was told by the Dealership by call. Then all the sudden on May 12th I get a call saying that my car was ready, I go to pick it up the next day, and no information was given to me about what was done to the car, after I signed the paperwork. Then I found that no change of engine was done and that only they did a "RETEST" and passed. I took the car and felt different vibrations and sounds coming from the car. I call them after it, and they said that all it was done according to Kia instructions. On May 14th I called Kia's Customer Care Center phone number and told them about it. They instruct that the situation was strange, and they agreed with my concern of "Why would they keep a car for a month saying that a new engine was required, and now all of the sudden the car was good, and that I had the right to go to a new dealership and ask for a new test" On May 19th I went to Lou Fusz Kia, at1025 N Lindbergh Blvd, St. Louis, MO 63132. I was about to drop off my car, they agreed to take it, until they saw in their system that I already did the test for the recall, I explained to them my situation, but their answer was "we are going to get the same results from the test and also there's going to be charge from until, since you already had one". I don't have any light popping up on my dash for now, but I don't like the noise coming from the engine, but Kia seems to not care about it. Also, I feel very unsecure now, after they had my car for a month, saying that an engine replacement was needed, and now by new test, it wasn't necessary anymore. This is the only reliable method of transportation that I have. And I don't like how Kia is handling this big problem. A malfunction from the piston oil ring can cause a big damage and even can result in a life-threatening injury.
My car originally qualified for an engine replacement through the recall because it failed the test they performed. The engine is on recall and I have had a rental for close to 3 weeks. Today Kia called me and said due to changes in the inspection process and criteria for the recall my car no longer qualifies for the engine replacement and I need to return my rental and pick up my car. I refuse to put my family in an unsafe car because Kia figured out a way to get out of replacing the engine.
The contact owns a 2021 Kia Seltos. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The vehicle was taken to the dealer, where it was diagnosed and determined that the piston oil rings had failed and needed to be replaced. The dealer informed the contact that the recall had been placed on hold by the manufacturer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
The contact owns a 2021 Kia Seltos. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving at various speeds, the vehicle stalled without warning. The failure intermittently occurred while idling at a stop light. While attempting to accelerate, the vehicle hesitated or lagged before accelerating. While driving out of a gas station, the check engine warning light illuminated, the vehicle stalled, and lost motive power. The vehicle was towed to the dealer who diagnosed that the oil piston rings had failed, and oil was leaking into the engine, causing the engine to fail. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The dealer informed the contact there were no parts for the recall repair available. The manufacturer was made aware of the failure and opened a case. The failure mileage was 70,000. Parts distribution disconnect.
I took my car to the dealership for the recall fix on its engine where they put the noise sensors in. I told them my car was burning oil and my car check engine light came on so I took it back in. Just before going in the light went off, but the code was for a misfire in cylinder 2. They did could not recreate the misfire and sealed my engine and told me to bring it back in 1000 miles. During this time the check engine light came on and went off again for the same code. When I brought it back at 1000 miles they could not recreate the misfire and said my car burned 0.77 quarts of oil in 1000 miles and in order for the engine to be bad that it needed to burn 1.0 quarts in that timeframe. They resealed the engine and I am to bring it back again in 1000 miles. A car should burn next to nothing for oil in 1000 miles. So my engine could burn out almost all its oil before a regular oil change and burn up the engine unless I keep adding oil. I am betting the cylinder misfire is because of oil fouling the plug. I could be on the highway and my motor could stall or blowup from lack of oil. Their recall fix is a joke and saying a regular gas enginecan burn up to 1 quart of oil every 1000 miles is ridiculous. This and every car with this engine problem should have the engine properly repaired or replaced
Recall was initiated for my 2021 Kia Seltos for potential defective engine piston rings which could lead to increased oil consumption and lead to damage/fire to engine compartment. My vehicle has been burning through oil to the point i have to add it weekly to keep it from running out before next scheduled oil changes. Two separate local mechanics confirmed this is highly indicative of bad piston rings and should definitely be covered for repair/replacement by Kia dealer under recall. I took car in for recall assessment, they stated they performed an oil consumption test and engine knocking test to which they deemed it passed. I spoke with lead mechanic explaining that the car is burning through oil so quickly it would be completely empty by next scheduled oil changes if i wasnt continuously adding it - to which they replied they were aware and to "just keep adding oil". I stated this didnt seem right as it we know it is burning up oil at an alarming rate inside engine and was told unless it is pretty much spewing oil on the floor in front of us, it will pass the consumption test and you just have to continue adding oil. The piston rings would not even be checked unless you "failed the oil consumption test first". This is very concerning to drive now since there are reports of this issue leading to engine fires.
The contact owned a 2021 Kia Seltos. The contact stated that while his son was having the vehicle service, he was informed that the vehicle was consuming an excessive amount of oil. The contact was unaware of any warning lights being illuminated. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact traded the vehicle. The contact then received notification of NHTSA Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING). The manufacturer was made aware of the failure and advised contact that he would be getting an email from the manufacturer’ however, the contact was still awaiting the email notification. The approximate failure mileage was 117,000.
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The 2021 Kia Seltos has 143 Engine complaints on file. 1 crashes have been reported. Review the timeline above for detailed owner experiences.