2021 KIA Soul

Recalls, Specs & Safety Report

Expert Verdict
ℹ️Average Safety Profile

This 2021 model shows average reliability, primarily driven by 2 recalls affecting the engine system.

Key Factor:engine recalls

📋Why This Matters

Powertrain issues affect both daily reliability and long-term ownership costs. Unexpected stalling creates inconvenience at best and safety hazards at worst.

Insurance companies review vehicle reliability data when setting premiums. Models with elevated recall rates often see adjusted pricing.

Focus Area:powertrain reliability
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Expert Analysis

  • 📈
    Recall Trend:No Change in recalls
  • ⚠️
    Primary Risk Area:Warning
  • ⚖️
    Vs Brand: Worse than avg (1.9)
    📝
    Summary:

Safety & Reliability Score

79/100

Score Breakdown

Recall Impact-16
Complaint Impact-5
Investigation Impact-0

Technical Specifications

Key specifications for the 2021 KIA Soul

Model Year2021
MakeKIA
ModelSoul
Fuel TypeGasoline
Body ClassPassenger Vehicle

Safety History Timeline

Jan21
NEWProduction
Jan21
RECALLRecall Issued
Jan21
RECALLRecall Issued
Mar24
ISSUEFirst Report

Consumer Complaint Analysis

⚠️

Most Reported Issue

40 complaints (40% of total)
➡️

Complaint Trend

Stable
No trend data

Safety Incidents

No critical incidents

Complaint Severity Distribution

Breakdown of 100 consumer complaints by severity level.

🟠High
19(19%)
🟡Medium
32(32%)
🟢Low
49(49%)

Mileage Failure Analysis

⚙️Engineering Insight

Based on consumer reports, issues for this vehicle tend to peak around the 60k-80k mileage range. The average reported failure mileage is 56,769 miles.

📊 Mileage data extracted from 45 of 100 complaints (45% coverage)
0-20k
5 reports (11%)
20k-40k
7 reports (16%)
40k-60k
9 reports (20%)
60k-80k
13 reports (29%)
80k-100k
8 reports (18%)
100k+
3 reports (7%)
* Analysis based on mileage data extracted from consumer complaint descriptions. Actual failure rates may vary.

🛠️ DIY Diagnosis Center

Experiencing an issue? Select a symptom to find official manufacturer solutions (TSBs).

Primary Risk Areas

ENGINEENGINE AND ENGINE COOLING

Official Safety Recalls (2)

Campaign: 21V259000

ENGINE

Summary

Kia Motors America (Kia) is recalling certain 2020-2021 Soul, and 2021 Seltos vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which may result in engine damage.

Consequence

A damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of a fire.

Remedy

Kia will notify owners, and dealers will inspect and, if necessary, replace the engine, free of charge. In addition, Kia will deploy Piston Ring Noise Sensing System (PNSS) software. The recall began June 11, 2021. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC209.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Manufacturer: Kia Motors America

Campaign: 25V099000

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Summary

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.

Consequence

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 were mailed April 4, 2025. Owners may contact Kia customer service at 800-333-4542. Kia's number for this recall is SC336.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.

Manufacturer: Kia America, Inc.

NHTSA Investigations

0 investigations

No active investigations for this vehicle.

Consumer Complaints

100 total complaints

Consumer-reported issues submitted to NHTSA for 2021 Soul.

Common Reported SymptomsAI Analysis

Warning40%
Stall39%
Check Engine Light27%
Noise11%
Fire11%
Acceleration Issues10%
Burn7%
Accident6%
Crash/Accident5%
Engine/Powertrain🔵 Low
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

Contact Information: •Name: [XXX] •Contact: Phone: [XXX] Email: [XXX] •Location: Hawaii Vehicle Information: •Year / Make / Model: 2021 Kia Soul S •VIN: [XXX] •Mileage: 133,000 miles Recall Reference: •Verified NHTSA recall for VIN: [XXX] Kia Consumer Affairs Case Number: XXX ⸻ Complaint Description 1.I received a notification of an NHTSA safety recall for this vehicle. In February 2025, I responded to that notification by contacting Kia. My husband followed up in March 2025 with the dealer, but we did not receive any follow-up regarding inspection or repair. 2.On Tuesday, 12/16/2025, I contacted the dealership again; I was told someone from the service department (believed to be named Colton) would call me back. I have not yet received a callback. 3.Today, I visited the dealer in person. The service department did not document the symptoms reported in my Kia Consumer Affairs case #XXX. 4.The earliest the dealer can see the car is Friday at 9:30 a.m., despite confirming that the car is part of an active safety recall. 5.Current symptoms include: •Engine overheating •Excessive oil consumption (1 quart lost in days) •Check engine light illuminated •Blue smoke from the exhaust •Engine rattling / vibration •A/C inoperable 6.The vehicle is unsafe to drive due to these symptoms. 7.Kia Consumer Affairs, via Gina, stated: •The dealer does not have loaner vehicles available •If I rent a vehicle, Kia will only reimburse $43.19 per day, and I must go through a reimbursement process 8.Given the known safety concerns of the recall and the severity of current symptoms, the dealer must be responsible for providing a safe vehicle immediately while inspection and repairs are addressed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine/Powertrain🔶 Medium
ENGINE AND ENGINE COOLING

The contact owns a 2021 Kia Soul. The contact stated that the vehicle was experiencing excessive oil consumption. The contact stated that while driving at various speeds, the vehicle stalled on several occasions. The driver was able to pull over to the side of the road as possible, and the vehicle was able to restart after an extended time. There was no warning light illuminated. The contact stated that oil was added every two days to prevent the vehicle from stalling. The vehicle was taken to the dealer to be repaired under NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling), and the dealer deployed the Piston Ring Noise Sensing System (PNSS) software on the vehicle; however, no further service was performed, and the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the dealer should repair the vehicle; however, the dealer informed the contact that the manufacturer had advised to deploy the Piston Ring Noise Sensing System (PNSS) software and to only replace the engine if an abnormal sound was present. The failure mileage was approximately 75,000.

Engine/Powertrain🔶 Medium
ENGINE

My vehicle is part of an active engine recall related to defective piston oil rings. When I brought my car to the dealership for the recall inspection, I informed them and Kia Corporate that my car had been stalling and shutting off while driving for months. I have text message documentation of these incidents. This safety concern was ignored. The dealership performed only a basic visual inspection (removing coils and air filter, checking battery, alternator, starter, and attempting to start the engine) and refused to perform a full recall diagnostic or engine tear-down. They claimed the engine was “hydrolocked” and stated that water in the engine “voids any recall” and that outside influence is not covered. I requested that Kia Corporate dispatch a Field Service Engineer (FSE) for an independent inspection, but corporate told me that I cannot request an FSE directly and that only the dealership can request it. Since the dealership refuses, corporate will not act. Safety Concern: Stalling and shutting off while driving is a serious safety hazard that can lead to accidents. The vehicle is part of a federally mandated engine recall, but the dealership and corporate have refused to perform the proper recall inspection. The refusal to inspect the engine or acknowledge stalling incidents leaves me and other potential drivers at risk of unsafe operation. Requested Action: Investigate the dealership’s refusal to perform the recall inspection. Ensure Kia performs a full recall diagnostic, including internal inspection of piston oil rings and related engine components. Require corporate or a Field Service Engineer to review the vehicle given the dealership’s refusal. Address the stalling incidents as a potential safety defect related to the recall.

Engine/Powertrain🔶 Medium
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE

Auto Start Stop Issue - Vehicle will stall and not start when waiting at a red light after you let go of break. All warning lights would turn on and stall.

Other🔵 Low
UNKNOWN OR OTHER

Paint is peeling on the roof of my 2021 Kia Soul - for no reason. I have read that other KIA owners have this problem and Kia is not taking responsibility for this.

Engine/Powertrain🔶 Medium
ENGINE

The contact owns a 2021 Kia Soul. The vehicle was serviced under NHTSA Campaign Number: 21V259000 (ENGINE), but the failure occurred. The contact stated that DTC: P0004 was displayed. The vehicle was taken to the dealer, where an oil consumption test was scheduled to be performed. The contact was asked to provide the maintenance history on the vehicle. The contact was unable to provide the documents, and the dealer refused to repair the vehicle. The dealer reset the code and sent the contact home. The contact stated that on the drive back to the residence, the DTC: P0004 became displayed on the instrument panel. The vehicle was taken back to the dealer. The dealer requested the maintenance records. The vehicle was not repaired. The contact stated that the failure persisted. Most recently, an abnormal sound was coming from the engine, and the vehicle stalled. The contact was able to coast to the side of the road. After several attempts, the vehicle restarted. The failure persisted, and the vehicle remained at the residence unrepaired. The manufacturer was informed of the failure. The failure mileage was approximately 92,000.

Engine/Powertrain⚠️ High
ENGINE

Description of Problem: My 2021 Kia Soul experienced complete engine failure consistent with the defect described in Recall 25V099 (SC336), which addresses faulty piston oil rings that can cause engine damage, stalling, and potential fire risk. Kia of Round Rock performed a compression test and found Cylinder 3 at 102 PSI, well below the normal minimum of 160 PSI. Despite this, the service advisor stated in writing that the failure was “unrelated to the recall” and quoted an engine rebuild cost of $7,476.32. The recall specifically identifies incorrectly manufactured piston oil rings as a cause of engine damage. Low compression from defective piston rings directly aligns with this recall’s description and the findings in my vehicle. Additional Detail: Prior to the failure, a warning light briefly appeared on the dashboard but did not remain illuminated. It was not the engine light, and it disappeared shortly after. This suggests the defect was developing internally without a consistent diagnostic warning, making it unpredictable and dangerous. Safety Concern: This is a serious safety hazard for my family, including our two children (ages 6 and 9). A sudden engine failure or stall could cause a dangerous accident or even be fatal. We trusted Kia to provide a safe vehicle and to honor its recall obligations. The refusal to address this under the recall leaves us driving an unsafe car that could fail at any time. Supporting Documentation: Dealership diagnostic report showing compression test results and repair estimate. Recall notice (25V099 / SC336) identifying the piston oil ring defect. Written communication with Kia of Round Rock and Kia Consumer Affairs. Additional Notes: I contacted Kia Consumer Affairs to open a case and request escalation. I am filing this complaint to inform NHTSA that vehicles like mine are being denied coverage for a failure directly related to the recall.

Engine/Powertrain⚠️ High
ENGINE

Vehicle Information: Make/Model/Year: 2021 Kia Soul VIN: [XXX] Odometer: [96,000] Dealerships: Kia of Killeen, TX /Kia of Round Rock, TX & Component/System Failure: Engine failure due to defective piston oil rings, causing low compression and stalling. Components are available for inspection at both dealerships. Safety Risk: Sudden engine failure and stalling created a serious risk to my family, including children ages 6 and 9. The defect could cause loss of vehicle control or fire, potentially fatal. Dealer Confirmation: Kia of Round Rock confirmed low compression (Cylinder 3 at 102 PSI). Kia of Killeen falsely stated the recall was completed; while the car was in their care, it would not crank. Inspections: Vehicle inspected by Kia dealerships. No police or insurance inspections. Kia Consumer Affairs contacted for escalation. Warning Signs: A brief dashboard warning light appeared (not engine light) before failure and disappeared quickly. Vehicle experienced stalling while attempting recall repair in February/March. Problem Description: Failure is consistent with Recall 25V099 (SC336) for faulty piston oil rings. Kia of Round Rock confirmed low compression, but the service advisor stated it was “unrelated to the recall” and quoted a $7,476.32 engine rebuild. Supporting Documentation: Dealership diagnostic reports and repair estimates ( From RoundRock) (Killeen:Pending) Recall notice (25V099 / SC336) Written communication with Kia dealerships and Consumer Affairs Additional Notes: I contacted Kia Consumer Affairs to open a case and request escalation. Filing this complaint to inform NHTSA that vehicles like mine are being denied coverage for a defect directly related to the recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine/Powertrain🔵 Low
ENGINE

The vehicle has a piston ring issue and I received a re all letter but to no avail because this website has not recognized the recall

Engine/Powertrain🔶 Medium
ENGINE AND ENGINE COOLING

The contact owns a 2021 Kia Soul. The contact stated that the engine was making a grinding sound while the vehicle was being started. Additionally, the contact stated that the engine oil had to be changed every week. While receiving an oil change, the contact was informed that the engine seemed to be defective, and the contact was referred to the dealer for assistance. While the vehicle was idling at a red light, the vehicle suddenly stalled without warning. The contact shifted to park(P) and made two attempts to restart the vehicle before being able to continue driving. While decelerating to come to a stop at a red light, the vehicle stalled a second time. The contact shifted into park(P) and several attempts were made before the vehicle restarted. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling). The vehicle was taken to the dealer who had installed the piston-ring noise-sensing system software and determined that the remedy was completed, and that the engine did not need to be replaced. The dealer also informed the contact that the heck engine warning light had failed but had been repaired and should properly illuminate whenever needed. The manufacturer was not informed of the failure. The failure mileage was unknown.

Frequently Asked Questions

Are there any recalls for the 2021 KIA Soul?

Yes, the 2021 KIA Soul has 2 recorded recalls from NHTSA. These recalls cover various components including ENGINE, ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL.

Is the 2021 KIA Soul safe to drive?

The 2021 KIA Soul has 2 recalls. If you own this vehicle, check with your dealer to ensure all recall repairs have been completed. Most recalls have free remedies available.

Where can I check if my 2021 KIA Soul has open recalls?

You can check for open recalls by visiting NHTSA.gov and entering your Vehicle Identification Number (VIN), or by contacting your local KIA dealer.

📊Year-over-Year Context

➡️Stable Pattern

Compared to earlier years, the 2021 model shows stable reliability patterns. No meaningful structural change detected in recall frequency between adjacent model years.

🎯Risk Areas & Recommended Actions

Based on recall data, these components require verification:

1

Engine

Issue: presents fire risk under certain conditions

If you already own this vehicle: Contact your dealer immediately to confirm engine recalls are complete. Recall repairs are always free.

🔍

If you are evaluating a used example: Request VIN and verify all engine recalls are completed before purchase.

Campaign:21V259000
2

Engine and engine cooling

Issue: presents fire risk under certain conditions

If you already own this vehicle: Contact your dealer immediately to confirm engine and engine cooling recall is complete. Recall repairs are always free.

🔍

If you are evaluating a used example: Request VIN and verify all engine and engine cooling recalls are completed before purchase.

Campaign:25V099000
💡Visit NHTSA.gov or contact your KIA dealer to verify recall completion status.

🧭What This Means for You

This information is especially relevant for drivers who rely on stop-and-go traffic or frequently use auto start-stop systems.

If you're unsure, we recommend starting with a VIN check or consulting a certified mechanic.

🔑

If You Own This Vehicle

  • Verify all 2 recalls have been completed using your VIN at NHTSA.gov or through your KIA dealer.
  • If any recalls are open, schedule service immediately—recall repairs are always free.
  • Consider setting up VIN-specific alerts to receive notification of future recalls.
🛒

If You're Buying Used

  • Request documentation proving all recalls were addressed before finalizing purchase.
  • Factor potential recall-related service time into your ownership cost estimates.

This page is designed to help you decide, not alarm you.

Compare with Similar Vehicles

Data sourced from the National Highway Traffic Safety Administration (NHTSA). Last updated: January 10, 2026.