2021 Kia Seltos
The Verdict
The 2021 Kia Seltos has 377 owner complaints filed with NHTSA. The most reported issues are engine (279 complaints) and body (41 complaints). With a Klunk Score of 36/100, it earns a "Check Engine" rating. If you're shopping for a Kia Seltos, consider the 2025 model year which has 96% fewer complaints.
Safe Bet
The 2025 has 96% fewer complaints
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Klunk Score: Check Engine
More complaints than most vehicles. Known issues exist — budget for potential repairs.
How is this calculated?
The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.
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Under the Hood
Each number is a complaint. Darker = bigger problem.
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Complaints
The contact owns a 2021 Kia Seltos. The contact stated that while driving at various speeds, a grinding noise was heard coming from the transmission. While accelerating at highway speeds, the vehicle experienced a rear jolt. The vehicle was taken to a local dealer, where examination of the transmission revealed metal shavings inside the transmission output shaft speed sensor. The contact was advised that the transmission required replacement. The manufacturer was notified of the failure and informed the contact that the vehicle was not included in the manufacturer's extended coverage program to address the issue. The failure mileage was 65,500.
Turned rear defroster on before getting on the highway as temps were in the upper 30s. About 5 minutes down the highway there was a loud pop sound and the rear windshield began splintering. By the time we got to a safe place to stop the entire shield was shattered and there were several holes. Purchased trash bags and tape to cover the windshield and during the process most of the glass had fallen a part. We had a 3 hour drive home without being able to see out the rear.
The contact owns a 2021 Kia Seltos. The contact stated that while driving at an undisclosed speed, the check engine, oil pressure, and charging system warning lights were illuminated, and the vehicle stalled. The contact stated that after waiting several minutes, the vehicle returned to normal operation. The vehicle was taken to a dealer, where it was diagnosed that the exhaust camshaft and alternator needed to be replaced. The contact stated that in July 2025, the vehicle was taken to a dealer and was inspected under NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the vehicle had passed inspection and was not repaired. The contact believed that the failure was associated with the recall. The manufacturer was notified of the failure by phone and opened a case. The failure mileage was approximately 107,000.
As I was driving my 2021 KIA SELTOS LX AWD, at approximately 45 mph, my car had stalled causing an injury to my facial area, specifically my nose.
RECALL EVASION & TIMELINE FRAUD REPORT Filing formal complaint against Kia America & Kia of Cerritos (CA) for evasion of mandate under Safety Recall SC336 (NHTSA 25V099). 1. CRITICAL TIMELINE: • [XXX]: Kia Cerritos confirmed NO diagnostic/recall tests were performed. • [XXX]: Dealer documented engine is completely SEIZED from the "bottom part" (where recalled piston oil rings reside). • [XXX] Kia Corporate denied repair, claiming the vehicle failed/passed an electronic KDS vibration test. 2. TECHNICAL IMPOSSIBILITY & FRAUD: It is mechanically impossible to run a noise vibration test on a seized engine that cannot crank or turn over. Either Kia Cerritos falsified records or Corporate is fabricating diagnostic data to evade a mandatory recall. 3. UNLAWFUL WARRANTY CONSTRAINTS: Kia Corporate is trying to route this federal safety recall through standard powertrain warranty rules, denying coverage over a lack of private cash maintenance receipts. Under federal law, safety recalls cannot be conditioned on consumer maintenance history or second-owner limits. 4. VIOLATION OF FACTORY PROTOCOL: Page 2 of Kia’s official SC336 TSB explicitly commands that a 'Seized / No Inspection' engine status must bypass the electronic noise vibration test entirely and be fast-tracked to corporate Techline for a full long-block replacement authorization. REQUESTED ACTION: I request the NHTSA Recall Enforcement Division immediately investigate Kia Corporate Case Number [XXX] for recall evasion and compel Kia America to authorize a free long-block engine replacement. "Note: This complaint is being managed by the driver's son-in-law and authorized representative [XXX] due to a language barrier." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Burns a lot of oil bad piston rings, and cylinders # 25v099000/KIA#SC336 incorrectly manufactured parts
The contact owns a 2021 Kia Seltos. The contact stated that the vehicle was experiencing excessive oil consumption. While driving 55 MPH, the vehicle lost motive power in the middle of the highway and came to a stop. The check engine warning light was illuminated, and an abnormal burning odor was coming from the vehicle. The vehicle was pushed to the side of the road with the assistance of a bystander. The vehicle was able to restart but was undrivable. The vehicle was towed to the dealer, who informed the contact a week later that the vehicle was operable. Upon retrieving the vehicle, the check engine warning light was still illuminated, and the vehicle was barely operational and made abnormal sounds. The contact informed the dealer of the issues, and the vehicle remained at the dealer and was diagnosed. The vehicle was diagnosed with camshaft failure. The vehicle was in the process of being repaired; however, the contact was informed that the repair was not covered under NHTSA Campaign Numbers: 21V259000 (Engine) or 25V099000 (Engine and Engine Cooling). The recall repairs were previously performed. The contact stated that the recall remedy failed to correct the issues. The manufacturer was notified of the failure by phone, but a supervisor had not yet returned the call. The failure mileage was approximately 158,000.
NHTSA SAFETY COMPLAINT Vehicle: 2021 Kia Seltos VIN: [XXX] Date: December 16, 2025 Complainant: [XXX] I am filing this formal safety complaint regarding serious and recurring engine problems with our 2021 Kia Seltos, VIN [XXX]. We have attempted repeatedly to resolve these concerns through Lithia Kia in Nampa, Idaho, as well as through Kia corporate, but our concerns have not been adequately addressed. Over approximately the past year, the vehicle’s engine has unexpectedly seized or shut down four separate times while the vehicle was being driven. Each incident created a serious safety hazard because the vehicle suddenly lost power. Fortunately, on these occasions, the failures occurred while we were traveling in slower traffic and we were able to maneuver the vehicle safely onto the shoulder. We are extremely concerned that a future occurrence could happen at higher speeds or in heavier traffic, potentially resulting in a serious crash or injury. Following each incident, the vehicle had to be towed. On two occasions, it was towed to an independent mechanic, and on two occasions it was towed directly to the Kia dealership. The independent mechanic diagnosed the vehicle as burning excessive amounts of engine oil. The loss of oil has occurred even within approximately 1,000 miles of an oil change when the engine had been properly topped off. We were informed that the excessive oil consumption was associated with the vehicle's safety systems shutting the engine down. Despite repeatedly reporting this dangerous condition to Lithia Kia, we do not believe the dealership has adequately investigated or corrected the underlying problem. On multiple occasions, the dealership performed relatively minor repairs, but those repairs did not resolve the problem. After the vehicle was returned to us, the same serious condition recurred. We repeatedly communicated to the dealership our extreme concern that this vehicle is unsafe to operate because the INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I am writing to file a formal safety complaint against Kia America and Rohrman Fort Wayne Kia regarding a failure to remedy a safety defect under federally mandated Recall SC336 (NHTSA Campaign Number: 21V259000 / Piston Oil Ring Defect) for my 2021 Kia Seltos.Current Mileage: 83,740 miles Active Kia Corporate Case Number: XXX Statement of Safety Risk and Incident Timeline:My vehicle recently exhibited severe symptoms identical to the documented manufacturing defect: aggressive, premature engine oil consumption resulting in a severe drop in oil pressure, loss of motive power, and random engine stalling while driving.On XXX, due to the extreme danger of operating a vehicle that stalls randomly in traffic, the vehicle was towed directly to Fort Wayne Kia (Repair Order #XXX).Failure of Recall Remedy and Dealership Misconduct:The dealership service department completed a software update tied to the recall (Piston Ring Noise Sensing System / PNSS) and claimed the vehicle "passed" their computer sensor threshold. However, the physical reality is that the internal mechanical damage from the factory defect had already occurred. Upon attempting to retrieve the vehicle on their lot, the engine failed to maintain a baseline idle and died immediately upon startup.The dealership’s Service Manager, [XXX], has refused to perform the necessary physical diagnostic engine inspections or a mechanical teardown under the recall campaign framework. Instead, the dealership attempted to charge me an out-of-pocket, customer-pay diagnostic fee of $190.00 to read the ensuing engine fault codes (P001700 and P000B00).As a professional automotive technician, I recognize these codes (Crankshaft/Camshaft Correlation and Camshaft Position Slow Response) as the direct, downstream hydraulic consequence of the top-end INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Had the software update for piston recall in April 2025, did all the testing and getting codes p0300 all the way to p0305 being that it only has 4 cylinders a 5th cylinder misfire code leads to piston ring failure, it is also burning oil the spark plugs are ashy which I have photo evidence of all of this and they are covered in oil, my car broke down while driving and lost complete engine power I am medically complex. Dealerships are denying the recall as it was "completed" due to a software update. This is a known safety hazard and I could have died. I have all proof it's the spark plugs failing.
My check engine light went on and the vehicle was driving sluggish, was louder at higher rpms and had a rough idle. The light went on around Aug 1st, 2026 and that's when I noticed the strange driving. Brought it to my mechanic that week and they got the following codes: p0017, p0014 and p0013. My mechanic thought this may be consistent with other engine issues Kia's had around the year of my car's make. While waiting for an appointment with a dealership, my car stalled out while I was driving it on Aug 5, 2026 and wouldn't turn back on. Luckily I was not on a busy road or a highway when this happened and was able to pull over without injury or damage to the vehicle. I got it towed to a Kia dealership and they took the engine apart and found that a camshaft dowel backed out causing separation inside of the engine. They had to then replace the exhaust cam, phaser, timing chain tensioner and all seals and gaskets needed for the repair. The dealership seemed to know this was a common issue and a quick search on the internet confirms that many other people with Kia engines (particularly Kia Seltos) around 2019-2021 have also had this problem. The car is 6 years old and only has about 85,000 miles on it. It has had all the required maintenance up to this point. The engine disassembling itself on its own does not seem like typical wear and tear to me.
My 2021 Kia Seltos is experiencing engine sputtering/hesitation at approximately 3,000 RPM and the low oil pressure warning light illuminates while the vehicle is stopped or idling. The vehicle has been taken to an authorized Kia dealership for diagnosis. The dealership opened a Kia Techline case and advised us that the vehicle passed Kia's piston-related test, but the symptoms remain. The vehicle is affected by Kia safety recall SC209, which concerns improperly heat-treated piston oil rings that may damage the engine. Kia's recall documentation identifies illumination of the oil pressure warning lamp as one of the potential symptoms/consequences of this defect. Despite the continuing symptoms, including the oil pressure warning light and sputtering at approximately 3,000 RPM, the problem has not been repaired. The dealership has now stated that Kia is requesting oil-change records and removal of the valve cover for further diagnosis. We perform our own oil changes. We were told that without service records the engine claim may be denied and that we could be responsible for approximately $878 in diagnostic charges if Kia denies coverage. I am concerned about operating the vehicle because the engine continues to malfunction and display the oil pressure warning despite being evaluated by an authorized Kia dealership. The vehicle is available for further inspection if requested.
Severe Safety Hazard, Corporate Negligence, and Delayed Repair: * After picking the vehicle up following the secondary service, a heavy, toxic smell of raw gasoline began pouring directly through the cabin’s HVAC vents while driving. * I immediately called the dealership. A representative consulted a technician and dismissively told me that the "engine just needed to be broken in." * Acting on this negligent advice, I continued operating the vehicle. My [XXX] son rides in this car daily. Due to inhaling raw fuel vapors, both my toddler and I suffered acute physical distress, experiencing severe headaches and dizziness. * On XXX I returned the vehicle to Kia of Greenville to demand an inspection regarding the toxic fumes. The dealership finally admitted that a fuel ring was broken, exposing my cabin to hazardous vapors. While the dealership has since corrected and repaired this gas issue, it only occurred after my family was subjected to unnecessary physical harm due to the technician’s initial dismissal. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Car began throwing a P0304 code in June of 2025. I took it to Brookshire Car Care and they ran a diagnostic, but found nothing to be wrong. In November of 2025, the car began throwing a P0304 code again and this time also had a P0303 code and P0335. The car was taken to Christian Brothers as it was unsafe to drive and the closest mechanic to my location. They found the crankshaft sensor to be damaged due to metallic debris. In March of 2026, the P0304 code came on again and I now took it to the closest Kia dealership. They determined 2 coils and all spark plugs should be replaced. Now, again, the P0304 code is back as of [XXX]. I have a long list of symptoms that include the metallic debris on the crankshaft sensor, rapid oil loss, frequent rough starts on a cold engine, a metal ticking sound, constant idle vibration, a/c shuddering when car is idle or turned on and in park. The dealership has said they will not acknowledge the findings of Christian Brothers because they are not the ones who made the repair. They said they will do a thorough test on my engine, however they continued to insist it is likely a fuel injector issue. I am concerned there is extensive engine damage and they are going to try to get out of the repair by saying it’s a cheaper fix and not determining the actual cause. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The fuel pump that is located within the fuel tank and under my seat somehow got a crack on a less than 5 year old car. I've had several people and mechanics tell me that that is rare with a car of that age. I am a safe and careful driver and purchased the car used directly from a Kia dealership. I have spent the past month trying to get a good will approval and they have denied twice even when I dont feel safe driving a car that will has parts not even exposed to the outside falling apart. My fuel pump is housed within my fuel tank and under my back seat so it is inaccessible to the average person, I have never even attempted to lift the seats. I am now left with a car I dont feel safe driving in with a large loan and a dealership and manufacturer that refuse to explain how this could happen or stand behind it. I'd also like to note that the light came on in early June so change in weather was not a factor. No extreme heat or cold at that time of year immediately prior or after it happened.
The contact owns a 2021 Kia Seltos. The contact became aware several years ago that the transmission was not shifting properly and the vehicle was shaking abnormally. The vehicle was taken to a dealer; however, the technicians found no failure. The contact stated that on another occasion while in traffic, the engine overheated. The vehicle was taken back to the dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired; however, the brakes locked up while the vehicle was on a hill, forcing the contact to steer to the side of the road and turn the vehicle off. The vehicle was restarted and driven back to the residence, but the following day the vehicle stalled. The manufacturer was notified of the failures and requested that the contact return the vehicle to the dealer. The vehicle was returned to the dealer to be diagnosed. The contact was informed that the transmission needed to be replaced. The contact stated that the transmission was replaced 3 times within 3 years. The contact was informed by the service manager that the dual clutch was not ideal for driving in the mountains. The contact stated that during the first failure, there were several unknown warning lights illuminated with audible alerts to exit the vehicle. The manufacturer was notified of the failure. The dealer confirmed the transmission failure. The vehicle was not repaired. The failure continued with reduced power.
My 2021 Kia Seltos 2.0L is experiencing excessive engine oil consumption between regularly scheduled oil changes. There is no visible external oil leak or oil accumulating underneath the vehicle, but the oil level becomes extremely low before the next scheduled oil change, requiring me to add oil myself. I am concerned that continued excessive oil consumption could result in inadequate engine lubrication, engine damage, engine seizure/stalling, or loss of power while driving. I took the vehicle to an authorized Kia dealership on September 1, 2026 and reported the excessive oil consumption. The dealership did not inspect the vehicle, perform diagnostic testing, or provide a repair order. I was told that because the vehicle has approximately 138,000 miles and is outside the warranty period, there was nothing the dealership or Kia would do and that diagnosis could be expensive. I subsequently contacted Kia Consumer Assistance. Kia confirmed that safety recall SC209 was completed on this vehicle in 2021. Kia advised that this vehicle is not currently included in SC336/NHTSA 25V099. Kia has opened a dealer complaint and advised that the matter will be brought to the attention of a District Manager. I am concerned because Kia has identified piston oil-ring-related problems involving increased oil consumption in certain Kia Seltos vehicles. Although my vehicle has not yet been diagnosed and Kia states that it is not included in SC336, I am reporting the excessive oil consumption and potential resulting engine failure as a safety concern. The vehicle is available for inspection.
My 2021 Kia Seltos SX Turbo (1.6L Turbo engine) is experiencing severe, excessive oil consumption, burning (and heavy smoke ) approximately 1 to 2 quarts, (Kia dealer oil change standard amount) of oil every 1,000 miles without any external visual leaks. A formal diagnosis by a certified Kia dealership confirms that heavy carbon buildup has accumulated around the piston rings, causing severe ring distortion. Because the oil rings are stuck and distorted, the engine is bypassing oil directly into the combustion chamber and burning it. This exact physical failure mode—carbon buildup causing piston oil ring failure—is identical to the defect described in NHTSA Recall 25V099 (Kia Campaign SC336) for the 2.0L Seltos models. However, my vehicle is currently excluded from safety remedies due to its 1.6L Turbo engine variant. This vehicle presents a severe safety hazard, including sudden engine knocking, very heavy smoke from the exhaust, power loss, stalling at highway speeds, or potential engine fire due to running dry on oil. Regulators must expand the scope of the piston ring investigation to include the 1.6L Turbo engine footprint. There were no engine lights, oil lights, or any warning codes. I was told by Kia repair service department that although the car was smoking heavy and smelled like it was burning that I should continue to drive it and then I wasn’t in danger. Please help
Acceleration is sluggish and vehicle struggles to maintain freeway speeds. Engine stalls (engine turns off, ACC still on) during normal operation. When reducing speed approaching a stop and for making a right angle turn, only the engine shuts off, all accessories (i.e. lights, climate control, radio and navigation screen) remain on. Tachometer intermittently indicates significant increase in RPM not comparable to vehicle speed. With IGS deactivated and AC off there is no change in engine stall occurrence; gasoline level is sufficient enough to not be a contributing factor and nominal amounts of engine oil is verified, yet an engine ticking is definitely audible. Oil changes (including oil filter replacement) completed every 5,000 miles, along with other milestone services in accordance with Kia preventative maintenance schedule. *there is oil burning somewhere, as the recommended amount only lasts approximately 1,000 miles; however, no noticeable traces of oil are observed in the same spot where vehicle is regularly parked. ***Three occurrences w/similar symptoms, CEL and P001700 via OBDII diagnostic scanner (attached history of dealer service and diagnostics): 1. 2024-10-11 @ 56,990 miles 2. 2025-02-26 @ 61,732 miles 3. 2026-05-01 @ 74,839 miles Each time the following parts were removed and replaced: -24370 2E020 (FP): CVVT ASSY-EXHAUST -24200 2E074 : CAMSHAFT ASSY-EXHAUS -22441 2700 : GASKET-ROCKER COVER -22443 2000 : SEAL-OIL On average, this issue occurs at 14,000 mile intervals (57k, 62k, 75k) which, with diagnostics, parts (12,000 mile part warranty), and labor adds a $2,000 cost to own annually. **Symptoms closely resemble Class Vehicle defects outlined in both: -NHTSA Campaign Number 25V099000 -NHTSA Campaign Number 21V259000 When my VIN is submitted for recall inquiry, neither campaign applies. In the meantime, it's a pain doing so, but I've discovered a delicate temporary workaround: shift to Neutral, press start until engine runs, shift to drive
Was driving and power steering became difficult to steer and a red steering wheel icon with a exclamation mark came on in the dashboard.
377 total