2021 Kia Soul
The Verdict
The 2021 Kia Soul has 238 owner complaints filed with NHTSA. The most reported issues are engine (186 complaints) and body (23 complaints). With a Klunk Score of 49/100, it earns a "Proceed with Caution" rating. If you're shopping for a Kia Soul, consider the 2025 model year which has 94% fewer complaints.
Safe Bet
The 2025 has 94% fewer complaints
View the 2025 Kia Soul dashboard →
Klunk Score: Proceed with Caution
About average for complaint volume. Research the specific issues before buying.
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.
Recalls 1
Active safety recalls from NHTSA for this vehicle year.
Kia America, Inc. (Kia) is recalling certain 2021-2023 Seltos and Soul vehicles. The piston oil rings may have been manufactured incorrectly, which can result in engine damage.
Risk
Engine damage can cause a vehicle stall or fire, increasing the risk of a crash or injury.
Remedy
Dealers will inspect and replace the engine as necessary, free of charge. Dealers will also install piston-ring noise sensing system (PNSS) software, free of charge. Owner notification letters we...
Reported Apr 10, 2026
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Under the Hood
Each number is a complaint. Darker = bigger problem.
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Worst Problems
Complaints
My kia's soul was part of a major safety recall for oil piston ring. The reason it's not showing on a recall list is because they claim to have fixed the issue. And it was removed. The issue is still persistent, and now the car has suffered catastrophic engine failure due to this recall issue. Kia corporate is refusing to rectify.
The car was constantly burning through large amounts of oil. One night I was driving and the car started slowing down and lost power completely. This put my safety at Risk because I was on the freeway and came to a complete stop. I brought the vehicle to the dealership and they said it would be 4k to fix and did not fix the recall.
Burning oil and piston failure in my 2021 Kia soul. But it’s not the 1 percent under recall. More than just the 1 percent
Was driving engine jumped time and stalled out doing 45. Vehicle only has 63499 miles on it. Had it towed to dealership. The vehicle passed the original piston oil ring recall test in 2025 and 15,000 miles later is needing a new engine due to the ineffectiveness of Kia recall.
consumer protection complaint against Gateway Kia of North Brunswick for wrongful warranty denial, deceptive business practices, and failure to comply with a federally mandated class action settlement.On Friday, September 25, 2026, my 2021 Kia Soul was left at Gateway Kia due to engine distress. The service department performed a physical mechanical bearing test and confirmed that the vehicle has a failed connecting rod bearing (the engine rod is shot).Despite this definitive physical proof of mechanical failure, the dealership's service department and Kia Corporate Consumer Affairs flatly refused to honor the repair or provide a mandated loaner vehicle. They claimed the vehicle is "out of warranty" and "does not match a recall."This vehicle is explicitly covered under the Kia Nu Engine Class Action Settlement, which legally mandates a Lifetime Warranty Extension for connecting rod bearing wear and failures for qualifying vehicles, regardless of original ownership or standard factory warranty expiration. Furthermore, the settlement explicitly dictates that a free loaner or alternative transportation must be provided while a class vehicle is held for a qualifying engine failure.By running a physical test that proved a settlement-covered mechanical failure, yet refusing to honor the court-ordered warranty extension, Gateway Kia is engaging in deceptive trade practices and violating federal class settlement terms. They are holding my inoperable vehicle while I am forced to maintain a $449.13 monthly finance payment to Credit Acceptance Corporation for a vehicle they refuse to fix.Requested Resolution:I request that the Division of Consumer Affairs investigate Gateway Kia of North Brunswick and compel Kia America, Inc. to immediately authorize the engine replacement under the Class Action Settlement terms.
My 2021 Kia Soul was included in Recall SC336 involving defective piston oil rings that may cause increased oil consumption, engine damage, and stalling. The recall remedy was done in June 2025. Kia digitally inspected the engine and said it passed so no engine replacement was performed. Eight months later the car began having symptoms mirroring those of the recall. On February 13, 2026, an independent repair facility documented a check engine light, poor acceleration, timing-related engine fault codes, no oil on the dipstick, less than two quarts of oil recovered from the engine, and no visible external oil leaks. On May 21, 2026, a Kia dealership documented that the vehicle arrived three quarts low. Engine timing and performance issues later required warranty repairs. On Sept. 19 2026, the vehicle stalled while turning onto a busy roadway with four occupants inside. Following the stall event, the vehicle was again found to be extremely low on oil despite documented regular maintenance and oil changes throughout ownership. I’m worried that the recall inspection didn’t identify an affected engine and that the car then developed the symptoms in Recall SC336 - excessive oil consumption, engine-related faults, poor performance, and dangerous stalling. The car is now being evaluated by Kia. I am complaining because I believe NHTSA should know a vehicle that passed the SC336 recall inspection within months developed symptoms resembling the condition that recall was intended to address. I have been informed by the dealership that because Recall SC336 was already completed, Kia would not allow the recall process to simply be performed again. My concern is that the vehicle was determined to have passed the recall inspection but then developed all of the recall symptoms. I am concerned that the recall history is not being considered as part of the current diagnosis and that the underlying condition addressed by SC336 was not identified despite the vehicle having symptoms.
Recall 25V099/SC336 was not performed on my vehicle when it was in the dealership. My vehicle is now disabled at Capitol Kia San Jose with complete engine failure. They are denying any responsibility and refusing repair coverage. I have written a formal letter to Kia Corporation requesting an immediate review of my vehicle. With this being an NHTSA recall I am hoping to get some intervention somewhere regarding this situation.
The check engine light came on in the car and within a few minutes while looking for a safe place the pull over there was a foul smell coming from the engine, followed by many error lights on the dash and the car losing the ability to accelerate and drive. The car had to be towed to a local repair shop who inspected the car and found that the engine a thrown a rod through the engine block.
The contact owns a 2021 Kia Soul. The contact stated that while driving 5 MPH, the vehicle stalled and failed to restart. The check engine warning light was illuminated. The contact associated the failure with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); and the recall repair was previously performed on the vehicle. The vehicle was towed to the dealer but was not yet diagnosed due to the cost. The manufacturer was contacted by phone and was made aware of the failure. The failure mileage was approximately 188,000.
My kia soul has high oil consumption. When informed of the recall for the piston rings, I had First Team Kia look at it. They informed me that they didn't see anything wrong so they cleared the recall. They NEVER performed the oil consumption test. Within 3 weeks, I traveled over 800 miles, round trip, and upon my return home I had to put 4 qrts of oil back in my car. I took my car to Southern Auto. They performed the oil consumption test that revealed the car has high oil consumption, burning 3.5 qrts of oil within 1000 miles. This engine could freeze up at any given moment putting my life and many other lives at risk as I drive this car daily on the interstate for work. The dealer confirmed there is a high oil consumption. No one has inspected this vehicle because First Team cleared the recall without properly testing my vehicle for the said issue. No lights are on the dashboard but I an constantly topping off my oil atleast 1-2 times a week.
The contact owns a 2021 Kia Soul. The contact stated that the vehicle was consuming an excessive amount of engine oil. The contact stated that the high oil consumption might cause a fire in the engine bay due to a failure with the piston rings. The contact referenced NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); as the possible cause for the failure. The vehicle was taken to a dealer, and the dealer declined to perform the recall repair because the vehicle did not experience a specific failure, even though all the other issues the vehicle had experienced were listed in the recall notice. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 215,000.
The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The vehicle was restarted but continued to stall each time the vehicle was stopped. There was an unknown warning light illuminated. The vehicle was taken to Auto Zone for an unknown diagnostic test and then towed to the dealer. The dealer determined that a tune-up was needed. The vehicle was also towed to an independent mechanic and associated the failure with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The contact was advised to take the vehicle back to the dealer. The vehicle was towed back to the dealer, and it was determined that there was sludge inside the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 109,000.
My 2021 KIA Soul has a recall order for P1327 code which is the knocking noise from the piston ring. The KIA dealership in Idaho Falls is denying the recall order, claiming that it has to be from the upper chamber, not the lower chamber. Which is not stated in the recall letter. They have done everything to avoid this recall. I have evidence that they know the engine have all the symptoms of the piston ring, but trying to avoid everything to replace the engine. They even deny giving the part name that is causing the knocking noise and not giving me the diagnostic report. Even charging $6,000 for the engine replacement.
The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle stalled. The check engine and engine oil warning lights were illuminated. The contact added engine oil to the engine and restarted the vehicle, but the failure persisted. The vehicle was towed to an independent mechanic, who was unable to repair the vehicle. The vehicle was then towed to the dealer, but the vehicle was not diagnosed or repaired. The contact associated the failure with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 65,000.
My 2021 Kia Soul has stalled unexpectedly while being driven on multiple occasions. When the vehicle stalls, the engine shuts off and the vehicle loses propulsion, creating a risk of a collision, particularly if it occurs in moving traffic. There have been no warning lights or messages before the vehicle stalls or when the stalling occurs. The vehicle has severe engine oil consumption. After approximately 3,000 miles, the oil level can become so low that no oil is visible on the dipstick. I do not know whether the excessive oil consumption is causing the stalling, but I believe that to be the reason. I previously brought the vehicle to an authorized Kia dealership while it was under warranty because of the oil-consumption problem. The dealership told me that the vehicle was probably leaking oil, that a part needed to be ordered, and that they would contact me when the part arrived. They never contacted me, and the problem was not resolved. I have since reported the repeated stalling and excessive oil consumption to Kia corporate. Kia instructed me to return the vehicle to the dealership for additional testing. I told Kia that I do not feel safe driving the vehicle approximately 40 minutes to the dealership because it has repeatedly stalled while being driven. I asked whether Kia would tow the vehicle, but Kia would not commit to providing a tow. I also asked Kia to put in writing its instruction that I should drive the vehicle to the dealership despite the reported stalling, and Kia declined. The vehicle remains available for inspection. The cause of the repeated stalling is most likely due to burning of excessive oil. I am concerned about an unexpected loss of propulsion occurring again while the vehicle is in traffic.
The contact owns a 2021 Kia Soul. The contact stated that on several occasions while the vehicle was stopped, the vehicle stalled. The vehicle was restarted after each failure. The contact stated that during one of the failures, the check engine warning light was illuminated. The contact stated that a quart of oil needed to be added to the engine after driving every 30 miles. Additionally, on one occasion while the vehicle was stopped, the vehicle stalled and failed to be restarted. The vehicle was towed to a dealer where it was diagnosed and determined that the engine needed to be replaced. The vehicle was not repaired. The contact associated the failure with NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The manufacturer was notified of the failure. The failure mileage was 102,261.
Took my vehicle in a year ago for the oil piston recall to the Kia dealer in North Huntington, Pa. I was told they corrected the recall during other servicing. My vehicle just broke down and is unable to be driven due to this unresolved issue.
Noise while driving and over bumps and steering
Vehicle: 2021 Kia Soul LX, 2.0L Engine Subject: Loss of Motive Power and Stall While Driving Under Recall SC336 Description of Incident: On 07/02 @ roughly 6:15PM, while driving on the highway I-35E at approximately 60 MPH, my vehicle's engine experienced a sudden and complete loss of engine power, stalling while in motion. I was able to safely navigate to the shoulder, activate my hazard lights, and restart the vehicle after pulling over. This stall occurred despite the vehicle being covered by Recall SC336 for defective piston oil rings . The recall condition explicitly warns that engine seizure can result in "loss of motive power," creating a significant risk of crash or injury. Ongoing Symptoms (Documented): · Excessive oil consumption: Over 2.5 quarts low after approximately 1,000 miles since the last oil change. This aligns with the recall's "increased oil consumption" warning. · Audible engine knocking when shutting off and ticking during acceleration. This matches the "abnormal noise from the engine" described in the recall. · Active Diagnostic Trouble Codes (DTCs) stored: P0017, P0014, P000B, P0172, P0300, P0301, P0302, P0303, P0304. These indicate timing issues, misfires on all four cylinders, and oil pressure-related failures. Vehicle had similar codes when visited for recall February of this year. Was told everything looked fine. · The vehicle shows signs of instability when accessories (A/C, headlights) are engaged, suggesting the engine is struggling to maintain idle. Safety Risk: The vehicle is unsafe to drive. The stall on the highway presented an immediate crash risk due to the sudden loss of power, which also disables power steering and power brakes.
The contact owns a 2021 Kia Soul. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed, the vehicle lost automotive power while the accelerator pedal was depressed. No warning light was illuminated. The contact pulled over to the shoulder of the road, where the vehicle was later towed to the residence. The vehicle was towed to a local independent dealer, where it was determined that the engine oil level was low. The contact associated the failure with NHTSA Campaign: 25V099000 (Engine and Engine Cooling). The local dealer was contacted and submitted a claim along with service records. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure, and a claim was not filed. The failure mileage was approximately 72,000.
238 total