Last updated: 2026-04-20

2021 KIA Soul Reliability Report
The 2021 KIA Soul scores 72/100 ("Good"). With 2 recalls and 190 owner complaints, reliability is acceptable but not class-leading.
Recalls
2
Complaints
190
Complaint Rate
25.3per 10,000 sold
Est. Repair Cost
$437
Annual Fuel Cost
$1,950–$2,200
Detailed Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
The Verdict
Acceptable reliability — worth considering with a pre-purchase inspection.
Top Issues to Watch
- ENGINE (85)
- ENGINE AND ENGINE COOLING (36)
- POWER TRAIN (16)
Generation & Refresh (US)
2021 is year 2 of the Third generation (SK3).
- Redesigned for the 2020 model year.
- A refresh arrives in 2023.
- 3rd generation Soul (US).
What this means for buyers
Year 2 is typically a safer pick than the first model year — early issues are more likely to be identified, but the platform is still new.
If you're comparing prices, check 2020 (redesign year) vs 2021+ pricing and recalls.
2020: Third generation (SK3) Launch
Generation start — new platform.
2021: This Model Year
2021 is year 2 of the Third generation (SK3).
2023: Mid-Cycle Refresh
Updated features and styling tweaks.
Should You Buy the 2021 KIA Soul?
At 72/100, the 2021 KIA Soul lands in "Good" territory — acceptable, but not class-leading. 2021 is year 2 of the Third generation (SK3).
Its complaint rate of 25.3 per 10,000 vehicles sold runs above the SUV segment average of 17.5. The most common reports involve engine (85).
Get a pre-purchase inspection on any used example, with extra attention to engine (85). An extended warranty is worth pricing out.
Compared to the 2022 KIA Soul, which scored 6 points higher. See also the 2020 KIA Soul for an earlier comparison.
Pros
- +Acceptable reliability score
- +$29 cheaper to maintain than avg subcompact SUVs
- +Infrequent unscheduled repairs
- +Low major repair risk (9%)
Cons
- −Above-average complaint rate for SUV
- −ENGINE: Stalling, excessive oil consumption, and engine failure (85 complaints)
- −ENGINE AND ENGINE COOLING: That the 2021 Kia Soul frequently experiences excessive oil consumption and... (36 complaints)
Compare 2021 KIA Soul With

2021 Hyundai Kona
Reliability: 63/100

2021 Nissan Kicks
Reliability: 78/100

2021 Chevrolet Trax
Reliability: 81/100

2021 Mazda CX-30
Reliability: 60/100

2021 Honda HR-V
Reliability: 86/100
Common Problem Categories
Safety
LOW RISK- 2 manufacturer recalls issued
Other
HIGH RISK- ENGINE (85)
- ENGINE AND ENGINE COOLING (36)
Recall Overview
2
recalls on record
The 2021 KIA Soul carries 2 recalls — a low count. Authorized dealers repair any open recall free of charge, regardless of warranty status.
NHTSA.gov →Complaint Breakdown
25.3
per 10,000 soldSegment avg: 17.5
Safety Incidents
12
Crashes
3
Fires
5
Injuries
0
Deaths
NHTSA 4/5 Stars
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
2021 KIA Soul Recall Details
2 recalls have been issued for the 2021 KIA Soul. All recall repairs are performed free of charge at authorized dealerships.
ENGINE AND ENGINE COOLING
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.
ENGINE
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.
Buying a used 2021 KIA Soul? Check its history first
Every 2021 KIA Soul has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2021 KIA Soul NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 14.7%
Safety Technologies
KIA SoulRepair Costs & Maintenance
Maintenance Rating
4.5Maintenance rating: 4.5 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$437
vs $466 avg for subcompact SUVs
vs $652 avg for all vehicles
Repair Frequency
0.2
unscheduled repair visits per year
Severe Repair Probability
9%
chance of a major repair
Annual Cost Comparison
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
KIA Soul Resale Value
The KIA Soul is estimated to retain about 69.5% of its original value after 5 years, based on observed used-car listings.
This benchmark covers the KIA Soul model overall and is not specific to the 2021 model year.
- Value Retained
- 69.5%
- Depreciation
- 30.5%
- Listings Analyzed
- 355
after 5 years
over the same period
U.S. used-car listings
Listings observed in . This is a historical market benchmark, not a current price quote.
Explore KIA Soul depreciation and resale value on CarResaleValue.comMPG & Annual Running Costs
Gas
27–31 MPG
Running cost: $2,400–$2,650/yr
Fuel + repair
25–29 city / 31–35 hwy MPG
Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2021 EPA label cycle.
Gas trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| Soul Eco dynamics 2.0L 4-cyl | Front-Wheel Drive | Automatic (variable gear ratios) | 29 | 35 | 31 | $1,950 |
| Soul 2.0L 4-cyl | Front-Wheel Drive | Automatic (variable gear ratios) | 28 | 33 | 30 | $2,000 |
| Soul 1.6L 4-cyl | Front-Wheel Drive | Automatic (AM-S7) | 27 | 32 | 29 | $2,050 |
| Soul 2.0L 4-cyl | Front-Wheel Drive | Manual 6-spd | 25 | 31 | 27 | $2,200 |
Used Buying Checklist
Key things to inspect or verify before purchasing a 2021 KIA Soul.
Check for excessive oil consumption by inspecting oil level and consumption history
Test drive to check for transmission shudder or power loss
Verify completion of all recall-related repairs and updates
Inspect for engine knocking or unusual noises during acceleration
Ensure all warning lights are functioning and check for any illuminated lights
Test the vehicle for stalling at idle or during acceleration
2021 KIA Soul Common Problems by Component
190 owner complaints grouped by vehicle system.
ENGINE
85 complaintsSafety-relatedOwners report frequent issues with the 2021 Kia Soul's engine, primarily involving stalling, excessive oil consumption, and engine failure. Typical symptoms include engine stalling at stops or while driving, audible knocking, and warning lights for check engine and oil. Many complaints occur around 80,000 to 90,000 miles, with some owners noting issues shortly after recall-related repairs. Safety implications are significant, as multiple reports mention the risk of rear-end collisions due to sudden stalling and, in one case, an engine fire. These patterns suggest potential buyers should be cautious of engine reliability and verify any recall compliance and repairs.
ENGINE AND ENGINE COOLING
36 complaintsOwners report that the 2021 Kia Soul frequently experiences excessive oil consumption and engine failures. Complaints often describe symptoms such as abnormal engine noises, rough idling, stalling, loss of power, and illuminated check engine lights. These issues typically emerge at mileages ranging from approximately 30,000 to over 150,000 miles. Some owners mention that their vehicles stall while driving, posing potential safety risks, but no reports of crashes or fires are noted. Prospective buyers should be aware of these recurring engine issues and the potential need for significant repairs, including engine replacements.
POWER TRAIN
16 complaintsSafety-relatedOwners of the 2021 Kia Soul frequently report issues related to the power train, particularly involving transmission failures and engine power loss. Typical symptoms include sudden loss of power while driving, inability to accelerate, engine revving without power transfer to the wheels, and erratic RPM fluctuations. Many complaints mention these issues occurring at various mileage points, but some note problems as early as 3,400 miles and others at higher mileages like 70,000 miles. Safety implications are significant, with reports of vehicles losing power on highways, creating potential hazards for rear-end collisions. One complaint involves a crash resulting from these issues. This information is crucial for used car buyers considering the 2021 Kia Soul, as it highlights potential reliability concerns with the vehicle's power train.
UNKNOWN OR OTHER (14 complaints)
UNKNOWN OR OTHER
14 complaintsSafety-relatedOwners report several reliability issues with the 2021 Kia Soul, with multiple complaints mentioning engine stalling and oil consumption problems. Symptoms frequently described include the vehicle stalling while driving, excessive oil consumption requiring frequent oil changes, and a burning oil smell without warning lights. Complaints also note engine ticking sounds and issues with acceleration, particularly at low mileages, such as around 3,500 to 8,000 miles. Safety implications are highlighted by reports of a vehicle fire originating from the car while parked and a crash resulting from theft due to a design flaw in the ignition switch. These issues suggest potential safety risks and maintenance concerns for prospective buyers.
ELECTRICAL SYSTEM (10 complaints)
ELECTRICAL SYSTEM
10 complaintsSafety-relatedOwners report multiple issues with the electrical system of the 2021 KIA Soul, with frequent mentions of stalling and loss of power. Symptoms include the vehicle stalling at stoplights, unexpected acceleration when braking, and complete electrical failure affecting headlights, wipers, and dashboard lights, often after hitting a bump or in wet conditions. Several complaints describe problems occurring shortly after purchase or within the first 14,000 miles. Safety implications are significant, with one reported crash resulting in two injuries due to uncontrollable acceleration and brake failure. Additionally, the vehicle's ignition vulnerability has been highlighted in a theft attempt, suggesting a potential security risk.
STEERING (9 complaints)
STEERING
9 complaintsOwners of the 2021 Kia Soul frequently report issues with the steering system, with several complaints describing abnormal clunking sounds and a drifting or pulling sensation while driving. Symptoms often include the steering wheel shifting back and forth or pulling to one side, sometimes after a period of steady driving. These issues are noted at varying mileages, with some reports as early as 204 miles and others around 53,000 miles. Safety implications are significant, as some owners experience loss of steering control, which could lead to dangerous situations on the road. Buyers should be aware of these potential steering problems and the need for careful inspection before purchase.
SERVICE BRAKES (6 complaints)
SERVICE BRAKES
6 complaintsSafety-relatedOwners report significant issues with the service brakes of the 2021 Kia Soul, often involving crashes. A common failure pattern involves the brake pedal failing to depress or engage normally during emergency situations, with multiple incidents where the Forward Collision-Avoidance Assist (FCA) and Automatic Emergency Braking (AEB) systems fail to activate. These issues have resulted in crashes, including rear-end collisions and impacts with stationary objects. Complaints frequently mention severe mechanical damage following these failures, and one owner notes unusual brake pad wear at under 10,000 miles. Buyers should be aware of these potential safety implications, especially given the pattern of brake system failures and non-functioning collision-avoidance systems.
AIR BAGS (4 complaints)
AIR BAGS
4 complaintsSafety-relatedOwners of the 2021 KIA Soul frequently report issues with airbags failing to deploy during crashes, with all four complaints involving significant frontal impacts. Typical symptoms described include severe front-end damage where airbags did not activate, leading to injuries in three cases. One report also mentions a fire following a collision, with the airbag inflating but not deflating, complicating the driver's escape. These incidents often involve substantial vehicle damage, and in one instance, the vehicle was deemed a total loss. Prospective buyers should be aware of these safety-related concerns, especially since they occur during high-impact collisions.
VISIBILITY/WIPER (2 complaints)
VISIBILITY/WIPER
2 complaintsOwners report issues related to the 2021 KIA Soul's paint and glass components. Complaints frequently mention massive paint delamination on the roof, where large sheets of paint flake off during motion, potentially distracting drivers and exposing the metal underneath. Another issue involves the sunroof, which owners describe as spontaneously exploding without external impact, raising the risk of injury or distraction. Additionally, a similar glass failure is noted with the driver’s door window, where it breaks without apparent cause or evidence of vandalism. These problems seem to occur regardless of mileage or specific timeline, and they present potential safety hazards related to visibility and debris.
SUSPENSION (2 complaints)
SUSPENSION
2 complaintsOwners report issues with the suspension of the 2021 Kia Soul, particularly involving steering and tie rod failures. Complaints frequently mention a popping or grinding noise when turning the wheel, with one report specifically describing a snapped left front tie rod that resulted in a loss of steering control. These issues are noted to occur early in the vehicle's life, with one owner experiencing problems as soon as three months after purchase. The safety implications include potential loss of vehicle control, which could lead to dangerous situations on the road. Used car buyers should be aware of these reported suspension issues and consider inspecting the vehicle's steering components before purchase.
When Do 2021 KIA Soul Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst KIA Soul Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best KIA Soul Years to Buy
Based on reliability index scoreThe best KIA Soul year is 2024 with a reliability score of 86/100, rated excellent. Other strong picks include 2025 (85/100) and 2022 (78/100).
KIA Soul Years to Avoid
The worst KIA Soul year is 2020 with a score of 70/100, primarily due to engine (144) issues. Also avoid 2021 (72/100).
2020
2021
(Current Model)
KIA Soul Reliability Score Trend
KIA Soul reliability has improved in recent years, with newer models scoring an average of 82/100 compared to 73/100 for older years.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2018 | 73/100 | Good |
| 2019 | 76/100 | Good |
| 2020 | 70/100 | Good |
| 2021 | 72/100 | Good |
| 2022 | 78/100 | Good |
| 2023 | 77/100 | Good |
| 2024 | 86/100 | Excellent |
| 2025 | 85/100 | Excellent |
KIA Soul Reliability Compared to Other Years
Frequently Asked Questions
Is the 2021 KIA Soul reliable?
What are the most common problems with the 2021 KIA Soul?
How many recalls does the 2021 KIA Soul have?
Is the 2021 KIA Soul expensive to maintain?
Don’t buy a 2021 KIA Soul without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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How We Calculate Reliability Scores
Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.
Key Ranking Factors
Complaint Severity
NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.
Repair Costs
Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.
Recall Impact
Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.
Issue Diversity
Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.
Scores are grouped into four tiers:
- 80–100: Excellent— Top-tier reliability, minimal issues
- 60–79: Good— Reliable with some minor concerns
- 40–59: Mixed— Notable issues, research before buying
- 0–39: Risky— Significant problems, proceed with caution
Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.
Get notified when new recalls or reliability data is added for the KIA Soul.
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