The contact noticed the oil drained quickly and RPMs increased rapidly upon starting the vehicle. The approximate failure mileage was 86,100. The vehicle was taken to the dealer where the ECU was replaced twice, the piston rings were not replaced; the issue persisted. The manufacturer was notified of the issue. The approximate failure mileage was 86,100
2021 Kia Soul engine complaints
Page 3 of 8: complaints 41 to 70 of 191, newest first, as owners wrote them.
The contact owns a 2021 Kia Soul. The contact stated while driving at approximately 25 MPH, the vehicle stalled. All of the warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed that the alternator needed to be replaced. The vehicle was repaired however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was approximately 75,000.
On [XXX], the check engine light illuminated. No other warning indicators activated — no low oil pressure warning, no low oil level warning, no driver alert of any kind regarding engine condition. On [XXX], at approximately 53,845 miles, the vehicle began running rough. I checked the engine oil and found the dipstick registered empty — no measurable oil in the engine. No low oil level or low oil pressure warning had been provided by the vehicle at any point prior to this discovery. I added two quarts of oil. The vehicle stalled while being driven to obtain the oil, and stalled again after the oil was added. I drove the vehicle to Jiffy Lube and had a full oil change performed. Mileage at the oil change was 53,852. I then scheduled an appointment with Gervais Kia in Lowell, Massachusetts, the nearest Kia dealer, less than one mile from my home. The earliest available appointment was approximately one week later. Because the vehicle stalled repeatedly at idle, I drove it to the dealer using both feet — keeping engine revs elevated with the accelerator while braking — to prevent stalling at stops. The vehicle is currently at Gervais Kia for diagnostic inspection. The symptoms match the failure mode documented in the federal safety agency recall campaign 25V‑099 (Kia recall for 2021-2023 Soul and Seltos with 2.0L Nu MPI engines, piston oil ring manufacturing defect). My vehicle has the 2.0L Nu MPI engine and was manufactured at the Kia Autoland Hwaseong plant identified in the recall filing. However, my VIN does not appear in the current recall population per the federal safety agency VIN lookup and Kia’s recall lookup. The recall remedy includes installation of Piston-ring Noise Sensing System (PNSS) software specifically because the defect provides no driver warning before failure — consistent with my experience, in which the engine ran empty of oil with no warning whatsoever. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
My 2021 Kia Soul experienced repeated overheating despite replacement of major cooling system components including the thermostat and water pump. The vehicle continued to overheat and was later diagnosed by a Kia dealership with engine damage requiring full engine replacement. This failure occurred around 105,000 miles. The symptoms and failure pattern are consistent with known issues affecting similar Kia engines, yet my VIN is not included in any recall. I am concerned this represents a broader defect that may not be fully captured in current recalls.
What component or system failed or malfunctioned? The engine (piston rings) and catalytic converter failed. The catalytic converter is available for inspection upon request. How was safety put at risk? The engine ran low on oil without any external leak, causing warning lights and engine rattling. Low oil pressure can lead to sudden engine seizure or fire. The failed catalytic converter can clog, causing loss of power on highways and increasing the risk of a crash. Has the problem been confirmed by a dealer or independent shop? Yes. A Kia dealer found the engine 2 quarts low, with no external leak, and recommended replacing the catalytic converter at a cost of over $6,000. An independent mechanic confirmed code P0420, which indicates catalytic converter failure. Has the vehicle been inspected by the manufacturer? The vehicle was inspected by an authorized Kia dealer, but they did not complete the required inspection for Recall SC336 (defective piston oil rings). They did add the software. Were there warning lamps or other symptoms? Yes. The oil pressure warning light and other dashboard lights came on. The engine made a rattling noise. The vehicle later felt sluggish on acceleration, fuel economy dropped, and the exhaust developed a smell. The check engine light came on and later turned off, but code P0420 was stored in the system.
the engine is consuming a quart of oil per thousand miles.
Hi my vehicle was stolen and the police found the vehicle. The car was damaged part of the damages was a broken ignition. I am unable to fix the damages until I get paid from the kia classaction lawsuit. The car still starts and stays running. I have the key for the car but I have been starting the car was butter knife bc it's easier then the key. I made an appointment to have the oil piston ring looked at. When I brought it I. They refused to look at it bc it has a broken ignition. I don't think the safety recall has anything to do w the ignition. The car is easy to turn on and shut off. I wouldn't care if my car wasn't stalling at traffic lights. My car is going thru a lot of oil. I am not working currently. This car was purchased for me by my dad. He paid cash for it. He bought it bc I had just been diagnosed w a rare autoimmune disease. He bought it so I would have something safe and reliable to drive in. We have had nothing g but problems since day 1. All I wanted was for them to look at it so im not going to be in harms way. Idk what to do the dealership said they cant look at it until I fixed the ignition. But like I said I won't have money to do that until I get the class action lawsuit.
I am filing a complaint regarding a safety recall (the federal safety agency Recall 25V099) on my 2021 Kia Soul that was marked as completed, but the defect was not properly repaired. On 3/17/26, I took my vehicle to a Kia dealership to have the recall addressed. The dealership performed only a software update and diagnostic testing and marked the recall as complete. No engine repair or replacement was performed. Within approximately one week of this recall service, my engine suffered a catastrophic failure while driving, resulting in a hole in the engine block and total engine failure. This created a serious safety risk due to sudden loss of power and fire hazard. I then had the vehicle inspected by a second Kia dealership. They informed me that the engine failure was consistent with the defect described in recall 25V099 (piston oil ring failure) and that the prior recall repair did not correct the underlying issue. This indicates that the recall remedy performed on my vehicle was incomplete or ineffective, and that the vehicle was returned to me in an unsafe condition. I am concerned that other vehicles may be receiving only software updates without proper inspection or repair, which could lead to similar dangerous failures. I am requesting that this situation be investigated as a failed recall remedy and a continued safety risk. Timeline: 3/17/26: Recall repair performed (software update only) 3/29/26: Engine failed catastrophically 4/2/26: Second dealership confirmed failure related to recall defect
Mi carro hay veces que prende la luz de la engine, lo lleve a checar y salió en la computadora que era un problema de Power Train system, que era secondary DTCs P1C28 Y P1C28000, lo busque en Google y salía que era un problema muy recurrente en Kias souls y sorentos. Que podría causar incendios
The contact owns a 2021 Kia Soul. The contact stated that while driving approximately 80 MPH, the vehicle unexpectedly stalled, with the check engine warning light illuminated. The vehicle was restarted; however, the failure reoccurred. The contact stated that while driving uphill, the vehicle failed to accelerate as needed. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and case was opened. The approximate failure mileage was 41,000. The VIN was not available.
I am writing to formally report a failure by Classic Kia of Streetsboro to provide the federally mandated safety remedy under Recall SC336 for my 2021 Kia Soul (VIN: [XXX] ). I have reason to believe the dealership has bypassed the mandatory safety protocols by intentionally omitting my documented diagnostic data—specifically Codes P0014/P0017, engine stalling, and excessive oil consumption—from the Techline Case Narrative. Evidence of Non-Compliance: 1. Improper Component Installation: Despite the documented timing failures, the dealership appears to have installed a Short Block (Part # 21102) instead of the required Long Block Assembly (Part # 21101-QQK). This leaves my oil-contaminated camshafts, valves, and VVT solenoids in the vehicle, posing a continued stalling risk. 2. Failure to Address Consequential Damage: The dealership is attempting to charge me a $99 "Customer Pay" fee for a catalytic converter back-pressure test. Under SC336, testing for consequential damage caused by a defective engine is the manufacturer's responsibility. 3. Withholding Documentation: The dealership has refused to provide the Techline Case Number or the Engine Part Number upon request, preventing me from verifying that the safety remedy was performed correctly. I will not be taking possession of the vehicle until Kia Corporate verifies that a Long Block Assembly was installed and that all diagnostic fees related to the recall symptoms are waived. This matter is currently being escalated but could definitely use your assistance. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
the federal safety agency SAFETY COMPLAINT: RECALL SC336 (CAMPAIGN 21V‑301) NON-COMPLIANCE VIN: [XXX] I. PATTERN OF RECALL EVASION Vehicle (2021 Kia Soul) was towed to Classic Kia [XXX] ) on 3/13 with documented engine stalling, knocking, and codes P0014/P0017 (VVT/Timing failure). The dealership withheld this data from Kia Techline for 13 days (3/13–3/26), delaying the safety remedy until state authorities intervened. II. MECHANICAL IMPOSSIBILITY & REMEDY VIOLATION On Saturday 3/28, the dealer claimed a full engine swap was "installed and tested" in only 6.5 hours (7:30 AM–2:15 PM). Per the SC336 mandate, a compliant Long Block assembly (Part # ending in QQK) requires extensive fluid flushes, software reflashing, and safety recalibrations that cannot be performed correctly in this window. I suspect a "Short Block" shortcut was taken, reusing contaminated components in violation of the federal safety remedy. III. FRAUD BY OMISSION & UNIFIED SAFETY HAZARD The dealership is demanding a $99 "diagnostic fee" for an exhaust back-pressure test. Under SC336, testing for "consequential damage" (clogged catalytic converter) caused by the recall defect must be covered by the manufacturer. By omitting the stalling/timing symptoms from the initial Techline report, the dealer bypassed the mandatory exhaust safety testing. Reusing oil-contaminated VVT solenoids, camshafts, and valves from the failed engine poses an immediate fire and safety hazard. IV. DEMAND FOR INVESTIGATION I request the federal safety agency oversight to ensure Classic Kia provides: 1. Proof of Long Block (21101-QQK) installation vs. unauthorized Short Block (21102). 2. Time-stamped DEVT and GDS Full System Scan logs from 3/28. 3. Verification that all contaminated components were replaced, as a partial remedy leaves the vehicle in a hazardous state. Reusing oil-soaked VVT/cams & skipping exhaust tests creates a fire risk. An incomplete remedy violates SC336, leaving the car a high-risk liability for fire & stalling. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S
The contact owns a 2021 Kia Soul. The contact stated that while driving approximately 40 MPH, the vehicle started losing automotive power. The message that the engine was overheating warning was flashing on the instrument panel with an audible chime. The contact pulled over but was unable to restart the vehicle. The vehicle was towed to a local dealer and was diagnosed with engine failure. The contact stated that the VIN was included in the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling); and was advised by the dealer that the engine failure was not related to the recall, and the dealer refused to perform the recall repair. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was unknown.
The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, there was an abnormally loud sound coming from the vehicle with the check engine warning light illuminated. The vehicle idled abnormally rough, and the engine was pulsing. The oil level was checked and was noticeably low. The contact added oil to the engine. The vehicle was taken to Precision Auto Care for an oil change. The contact was informed that the oil level was low. The contact informed the technician that the oil had been recently topped off. The contact was informed of the excessive oil consumption. The contact was provided with information on the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced or repaired before the recall repair could be performed. The vehicle was not yet repaired. The manufacturer was made aware of the failure, and a case was filed. In addition, the contact was informed that the vehicle had to be repaired before the recall repair was performed. The failure mileage was approximately 134,431.
My car experienced engine stall, fire risk, and piston ring failure while returning from a family road trip. Myself, my son, [XXX] old, and [XXX] pup was left in a ditch on a very busy road as the car stalled while driving. My VIN is excluded, however car experienced exact symptoms of recall SC2091. Codes P0300 P0304 P0302 P219D P0303 with no pressure in cylinder 2 and 4.This happened in 0ct 2025 and dealership and corporate do not want to exend goodwill to replace the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
DEALER ADMISSION OF NON-COMPLIANCE: I am updating my complaint to document that Kia of Streetsboro is officially refusing to perform the mandatory mechanical inspection required by Recall SC336. Despite the vehicle suffering from "Loss of Motive Power" (stalling in traffic) and "Abnormal Engine Noise," the dealership’s service department stated via text on March 17: "I asked my manager and he said as of right now since your vehicle passed the tablet we cannot do anything else." The dealer further stated: "I suggest calling consumer affairs since you have an open case and letting them know what's going on and seeing if they can help." TECHNICAL VIOLATION: The dealer’s refusal based on a "tablet pass" is a direct violation of TSB SC336, Step 18c, which states that if a vehicle exhibits mechanical symptoms that "contradict a PASS result," the dealer MUST open a Techline Case for further instructions. By their own admission, the dealer is choosing to follow a "manager’s" opinion rather than the Federal Recall Protocol. They are attempting to release a vehicle that is actively stalling at intersections, which they define as an "Early Warning" system success, while ignoring the actual mechanical failure (the stalling). SAFETY RISK: This is a documented Ineffective Remedy. The dealer is punting the safety diagnosis to a "Consumer Affairs" call center rather than performing the borescope and Techline escalation required by the federal safety agency. I am reporting this dealer for knowingly attempting to return a stalling, unsafe vehicle to a consumer while claiming the recall is complete.
My 2021 Kia Soul is exhibiting a severe safety defect documented in Recall SC336: frequent, unpredictable stalling in traffic ("Loss of Motive Power") and audible engine knocking. These symptoms create a high risk of a rear-end collision or being stranded in a dangerous traffic situation. The vehicle is currently at Kia of Streetsboro. Despite being provided with evidence of these active mechanical failures, the dealership is attempting to "remedy" the safety recall based solely on a "Pass" result from the Piston Ring Noise Sensing System (PNSS) software diagnostic. As the TSB SC336 notes that the root cause is physical damage to cylinder walls caused by defective piston oil rings, a software diagnostic "Pass" is not a physical repair and does not address the existing mechanical stalling. I have not received any status updates or communication from the dealership service department since Friday. The dealership is refusing to perform a borescope inspection or open a Kia Techline case to investigate the stalling, effectively denying a proper safety remedy. I am reporting this as a failure of the manufacturer and dealership to provide a safe and effective remedy for a known life-safety defect. The car remains unsafe to drive.
1. Component or System Malfunction Engine (internal piston/piston ring system) is malfunctioning. The vehicle exhibits clanking noises (“marbles in a can”) and cuts off or stalls unexpectedly while driving. The car is available for inspection by a Kia dealer or independent mechanic. 2. Safety Risk Vehicle loses power while driving, which is extremely dangerous, particularly on highways or in traffic. Stalling while moving poses a risk of collision, loss of steering or braking control, and endangers both driver and others. This makes the vehicle unsafe to drive long distances. 3. Reproduction of Problem Symptoms have been observed consistently during normal driving and acceleration. Not yet confirmed by a dealer, but the stalling is reproducible during operation. 4. Vehicle Inspection The vehicle has not yet been inspected by the manufacturer, dealer, police, or insurance representatives. Immediate inspection is recommended due to engine stall risk. 5. Warning Lamps / Symptoms Clanking engine noise noted prior to stalling. Engine cutting off/stalling occurs while driving. No warning lights illuminated prior to stalling. Symptoms first appeared during recent driving prior to planning transport or repair. 6. Additional Notes The vehicle is a candidate for Kia engine piston/piston ring recall (SC209 / SC336). Owner recommends urgent inspection and repair to prevent potential engine failure and safety risks.
Vehicle consistently stalls at complete stops in traffic. After the engine stalls, it requires a manual restart to resume operation. This creates a severe safety hazard, as the vehicle becomes immobile at intersections and in stop-and-go traffic, increasing the risk of a rear-end collision. The dealership is refusing to perform the necessary diagnostic for the engine stalling issue under the Havis v. Kia Settlement/KSDS recall protocols, claiming maintenance gaps, despite the vehicle having 0 open campaigns and the KSDS software update previously installed. This stalling issue is a known defect currently under the federal safety agency investigation (Audit Query AQ23-001) for this specific model and engine.
Check engine light on due to catalytic converter, took it to Kia motors in Bakersfield, California due to recall let them know that there was a check engine light on after buying the vehicle and only having it for one month and I thought it was due to the recall, which was on oil, piston rings, the dealership stated I could give all my paperwork that I had in regards to that, and if the engine failed, they would take care of it. After the test for the recall was done the engine failed and then a few days later a new updated recall, came out where the engine had to be running hot for the test to be done and then my recall passed so nothing was ever fixed with my vehicle. I believe that the catalytic converter is bad due to oil running into or around the catalytic converter. I also believe due to the malfunction of the oil, piston rings being bad/malfunction or whatever the recall was on is a determination of why my check engine light is on stating it’s a catalytic converter I believe if I continue driving my vehicle in the condition that it’s in it eventually will catch fire due to the issue.
My 2021 Kia Soul is having the same piston issues leading to engine failure as other previously recalled Kia Soul vehicles but for some reason my VIN is not part of any recall. Now it has been determined there is heavy scoring in my engine and I will need a new engine. My car is only 5 years old and there should be no reason for such major engine damage. My car has stalled on me while driving and other very similar issues as described on previous recalls. How does the federal safety agency determine when a certain model/year of car needs to be part of a national recall?
The entire car is dead from the engine to the key function completely dead. The car broke down 3 time in the middle of the street which could've caused a serious crash putting my safety and others at risk. The problem has been addressed to two different dealers and Kia corporate without resolution. I did make a police report about the mold infestation inside the car. I did now see any warnings prior to the complete reck. The cars been dead from the past 3 months. Both dealers are refusing and/or delaying any type of resolution in fact they gave me even more pressure. Causing me more anxiety than tranquility. Elevating my emotional health.
The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, and the engine seized. The contact stated that nearby drivers assisted with pushing the vehicle to the shoulder of the roadway. The failure had occurred while driving on a busy highway. While attempting to restart the vehicle, the vehicle started; however, it was unsafe to drive the vehicle. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. Prior to the engine seizing, the vehicle was consuming an excessive amount of engine oil. The contact stated that 3 to 4 quarts of oil needed to be added between oil changes. In addition, the contact stated that in 2021, the vehicle was repaired under the federal safety agency Campaign Number: 21V259000 (Engine). The contact stated that after the recall repair was performed, the excessive oil consumption started. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,200.
We are the 2nd owner of 2021 Kia Soul bought in July 2025. Took to a dealership for open recalls shortly after purchase. After supposedly passing the piston ring recall (the federal safety agency 21V259) for the next several months after it had severe oil consumption but other wise drove fine. Then immediately after our last oil change on Feb 13, 2026, less than 10 miles later the car stalled and was knocking badly. Towed to nearest dealership and after diagnostic was told engine needs replacing. Wants us to pay for it. The software update (Piston Ring Noise Sensing System or PNSS) installed during the recall visit did not fix the faulty piston rings and also failed to give any warning for the impending engine failure. We never had any check engine or oil pressure lights come on until this incident.
The transmission on the vehicle has gone bad twice since we purchased it used. The car has 34,400 miles on it. The problem puts the driver in an unsafe situation as the problem causes the car to lose power while at high speeds. The piston rings have also been replaced as part of the recall. Kia just keeps replacing these parts with more defective parts. I have videos if you want them.
I own a 2021 Kia Soul (VIN: [XXX] ). It is under Safety Recall SC209. The engine has failed TWICE due to this defect (stalling in traffic). The dealer (Ourisman Kia) and Manufacturer (Kia America) are refusing to provide a safe loaner vehicle while they inspect it, leaving a 100% disabled veteran stranded. I am reporting a failure to remedy a safety defect in a reasonable time. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Owner was driving home at the normal posted speed limit when the car stalled out. The check engine light was on along with the oil Light, the car cranked back up in time before owner was rear ended. No accident occurred but a close call. The vehicle made it about another 1 mile before stalling again this time losing all control in steering as well and was towed home.
The contact owns a 2021 Kia Soul. The contact stated that while driving at various speeds, the engine was consuming an excessive amount of engine oil. While depressing the accelerator pedal, there was an abnormal sound coming from the engine. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed. The contact was topping off the engine oil bi-weekly. The contact related the failure to the federal safety agency Campaign Number: 25V099000 (ENGINE AND ENGINE COOLING) for which the VIN was included. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 150,000.
My Kia Soul had a recall for the Pistons to be replaced due to faulty pistons. Now they are saying my engine is needing replacement, even with regular scheduled oil changes being done. They said the top was full of sludge. The said it's not covered so I have to pay 6900 plus to get it replaced
The contact owns a 2021 Kia Soul. The contact stated that the engine was running rough, and there was a significant amount of air and oil when the oil cap was opened. Additionally, there was an abnormal sound coming from the exhaust system. The vehicle was sluggish while driving and depressing the accelerator pedal. The wrench warning light was illuminated. The contact stated that the vehicle was taken to the dealer for repair under the federal safety agency Campaign Number: 21V259000 (Engine); however, upon inspection, the dealer informed the contact that no repair was needed, and the recall was marked as completed; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was advised that there would be a charge for fuel sampling. The vehicle was not diagnosed or repaired. The failure was also associated with the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 84,000.
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