Last updated: 2026-10-10

2021 Kia Soul
RELIABILITY SCORE: 72/100 (GOOD)

2021 Kia Soul Reliability Report

The 2021 KIA Soul has a good reliability standing, but owners report heavy oil burning and engine stalling that can end in a failed engine.

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

Complaint Severity47/100

Component-weighted complaints normalized by sales volume

Repair Costs90/100

Independent repair cost ratings

Recall Impact80/100

Recall count weighted by severity

Issue Diversity84/100

Breadth of reported problem categories

The Verdict

Consider

Above average among 2021 SUVs, yet one of the weaker Soul years because of oil burning and stalling engines.

Top Issues to Watch

  • ENGINE (85)
  • ENGINE AND ENGINE COOLING (36)
  • POWER TRAIN (16)

Generation & Refresh (US)

Post-Redesign (Year 2)

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?

Buy with caution. This year holds a good reliability standing and sits above average among 2021 SUVs, but it is among the weaker of the eight Soul model years. Independent repair-cost data puts yearly repairs at $437, under the $466 class figure. The 2020 rates about the same, and the 2022 rates better.

Engine trouble dominates owner complaints. Many owners describe heavy oil burning, often a quart or more every 1,000 miles, with no leak and no warning light. Knocking, power loss, and highway stalling follow, sometimes ending in a dead engine. Stalls cluster between 57,000 and 72,000 miles. Federal recall records list 2 recalls, both in engine areas. Several owners say the recall visit did not stop the oil loss or the stalling. Separate reports describe losing drive at highway speed, with transmission failures around 34,130 to 37,500 miles.

Ask for engine and transmission repair records, and proof that all recall work was done. Ask how much oil the car uses between changes. The 2022 is worth a look, though it has had less time to collect complaints.

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 issues reported (85 complaints)
  • −ENGINE AND ENGINE COOLING: Excessive oil consumption, rough running, and stalling without warning lights... (36 complaints)

Compare 2021 Kia Soul With

Common Problem Categories

Safety

LOW RISK
  • 2 manufacturer recalls issued

Other

HIGH RISK
  • ENGINE (85)
  • ENGINE AND ENGINE COOLING (36)

See detailed breakdown by component ↓

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 sold

Segment avg: 16.7

LowAvgHigh
Moderate

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.

21V2590002021-04-13

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.

25V0990002025-02-17

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.

VIN History Report

Buying a used 2021 Kia Soul? Check its history first

Engine problems lead owner complaints about the 2021 Kia Soul, and 2 recalls were issued for it. A VIN check shows whether this car's recall work was done, plus accident, title, and odometer history.

No VIN? Just hit “Check VIN” to look one up.

  • Accidents
  • Open Recalls
  • Title History
  • Odometer Rollback

2021 Kia Soul NHTSA Safety Ratings

Overall Safety Rating

Overall safety rating: 4 out of 5
Crash Test Results by Configuration (expand)

Gas Powertrain

Driver: 5/5Passenger: 4/5

Rollover risk: 14.7%

Safety Technologies

Dynamic Head Restraints (Not Available)Head Restraint (Not Available)Advanced Belt Feature (Standard)Adjustable Upper Belt Anchorage (Driver, Front Passenger)Seat Belt Reminder System (Driver, Front Passenger)Frontal Air Bag (Driver, Front Passenger)Curtain (Driver, Front Passenger, Rear Seat)Torso/Pelvis (Driver, Front Passenger)Knee (Not Available)Additional Air Bags (None)Meets Side Air Bag Out-of-Position Requirements (Yes)LATCH Locations (Rear Seat)Safety Power Windows (Anti-Pinch) (Optional)Safety Power Windows (Anti-Pinch) locations (Driver, Front Passenger)
View full safety data on NHTSA.gov →

Kia SoulRepair Costs & Maintenance

Maintenance Rating

4.5Maintenance rating: 4.5 out of 5

Based 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

Soul
$437
Category Avg
$466
All Vehicles
$652

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%

after 5 years

Depreciation
30.5%

over the same period

Listings Analyzed
355

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.com

MPG & 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
TrimDriveTrans.CityHwyCombFuel Cost
Soul Eco dynamics 2.0L 4-cylFront-Wheel DriveAutomatic (variable gear ratios)293531$1,950
Soul 2.0L 4-cylFront-Wheel DriveAutomatic (variable gear ratios)283330$2,000
Soul 1.6L 4-cylFront-Wheel DriveAutomatic (AM-S7)273229$2,050
Soul 2.0L 4-cylFront-Wheel DriveManual 6-spd253127$2,200

Used Buying Checklist

Key things to inspect or verify before purchasing a 2021 Kia Soul.

  • Pull the dipstick and compare the level to the date of the last oil change; a low reading points to oil burning.

  • Ask for oil-change records and look for short intervals or frequent top-offs between services.

  • Run the VIN through federal recall records and get dealer paperwork for any completed engine recall work.

  • Listen at cold start and under hard acceleration for knocking, ticking, rumbling, or grinding from the engine.

  • Drive at highway speed and watch for tachometer swings, surging, or revving without the car speeding up.

  • Ask whether the transmission or engine has been replaced and request the repair invoices.

  • Inspect the steering column and ignition for damage from a past theft attempt.

  • Check the roof for peeling paint and the passenger footwell for dampness or a mold smell.

2021 Kia Soul Common Problems by Component

190 owner complaints grouped by vehicle system.

85
36
ENGINE (85)ENGINE AND ENGINE COOLING (36)POWER TRAIN (16)UNKNOWN OR OTHER (14)ELECTRICAL SYSTEM (10)STEERING (9)SERVICE BRAKES (6)AIR BAGS (4)Other (10)

ENGINE

85 complaintsSafety-related

Soul engine problems across all model years

Heavy oil burning is the dominant complaint, often a quart or more every 1,000 miles with no visible leaks and no warning light. Many reports describe knocking, power loss, and stalling on highways, sometimes ending in seizure and a dealer verdict that the engine must be replaced. Several owners say a recall visit installed software and cleared codes, yet the oil loss and stalling returned. One filing describes a loud bang, a stall, and a fire that destroyed the car. Stalls cluster around 57,000 to 72,000 miles, though some oil burning starts much earlier.

85 complaints total1 fire

ENGINE AND ENGINE COOLING

36 complaints

Soul engine problems across all model years

Excessive oil consumption, rough running, and stalling without warning lights fill these reports. Owners describe rumbling, grinding, or clunking from the engine, shuddering from a stop, and power loss at 35 to 40 mph. Most filings center on a dealer recall visit where owners say piston ring noise-sensing software was installed, after which the stalling or oil loss came back and some engines failed outright. Others say dealers declined recall work once the engine had already died. One report pairs low coolant with low oil, and another cites an overheating warning before failure.

36 complaints total

POWER TRAIN

16 complaintsSafety-related

Sudden loss of drive at highway speed is the core pattern. The engine revs, the tachometer swings wildly, and the car slows sharply or will not move in drive or reverse. Several owners report transmission replacements, some on the same car twice, with failures clustering between 34,130 and 37,500 miles. One names the IVT. Some cases begin within the first few thousand miles. Other filings tie the power loss to oil burning and engine knocking. One crash-related report and another describe losing power at 70 mph in traffic, with drivers fearing a rear-end collision.

16 complaints total1 crash
UNKNOWN OR OTHER (14 complaints)

UNKNOWN OR OTHER

14 complaintsSafety-related

Stalling, oil burning, and an engine that revs without moving the car show up here too, including at about 3,500 miles. Two reports describe thefts through the ignition, one ending in a police chase and a crash. Other complaints cite a long pause restarting after auto stop-start on a grade, peeling roof paint, a false not-in-park alarm, and waits of months for repairs. One fire-related filing involves a house fire with the parked car as a suspected origin, still under insurer investigation.

14 complaints total1 crash1 fire
ELECTRICAL SYSTEM (10 complaints)

ELECTRICAL SYSTEM

10 complaintsSafety-related

Sudden loss of power while driving is the most serious pattern. Headlights, wipers, and the dash go dark, in one case at 65 mph in the rain with a key-not-detected message. Other reports describe stalls at red lights linked to auto stop-start, an engine that cranks but will not run, and a horn that fails repeatedly. Two drivers say the car sped up when they pressed the brake, one ending in a crash with 2 injuries. A theft attempt through the steering column also appears.

10 complaints total1 crash2 injuries
STEERING (9 complaints)

STEERING

9 complaints

Faults range from a steering wheel that seizes with a red warning light to clunking or popping from the column and a car that pulls right, then left after alignment. Lane-keeping assist reportedly goes inactive on long curves and fails to recenter. One new car lost power steering along with every electrical system at 55 mph. Several filings in this category actually describe oil consumption, stalling, or transmission replacement rather than steering trouble. Dealers often could not find a cause.

9 complaints total
SERVICE BRAKES (6 complaints)

SERVICE BRAKES

6 complaintsSafety-related

Most of these reports are crashes. Drivers describe a pedal that sinks to the floor or will not engage, and in some cases the car speeding up when the brake is pressed. Three filings say forward collision-avoidance assist and automatic emergency braking gave no alert and did not activate before an imminent collision. Five of the 6 complaints involve a crash. A separate report cites brake pads judged worn on a car with under 10,000 miles.

6 complaints total5 crashes
AIR BAGS (4 complaints)

AIR BAGS

4 complaintsSafety-related

Airbags failing to deploy in hard frontal and side impacts is the main complaint, with front ends destroyed and frames bent. All 4 reports involve crashes, and 3 include injuries. One describes a seatbelt that did not keep a passenger off the steering wheel. Another describes a 50 mph crash followed by fire, an airbag that stayed inflated, and a driver door that would not open from the handle.

4 complaints total4 crashes1 fire3 injuries
VISIBILITY/WIPER (2 complaints)

VISIBILITY/WIPER

2 complaints

Neither report involves the wipers. One describes roof paint peeling away in large sheets while driving, exposing bare metal and shedding debris onto traffic behind. The other describes a sunroof that shattered while the car sat parked with no sign of impact, plus a driver door window that broke the same way. With only 2 complaints, no wider pattern is clear.

2 complaints total
STRUCTURE (2 complaints)

STRUCTURE

2 complaints

Water leaks into the passenger side, pooling on the floor and spreading mold into the back seat. Heavy condensation builds up inside the cabin along with it. The other complaint describes paint chipping and peeling in several places, matching roof paint reports filed under other categories for this car. Volume is low, with 2 complaints total.

2 complaints total

When Do 2021 Kia Soul Problems Start?

Based on owner complaint patterns, here's when common issues tend to appear.

25,600–30,000 milesExcessive oil consumption
57,000–72,000 milesEngine stalling and knocking
34,130–37,500 milesTransmission failure, loss of drive
3,400–3,500 milesEngine revs, car won't accelerate

Best & Worst Kia Soul Years

Best Kia Soul Years to Buy

Kia Soul Years to Avoid

70
Good

2020

1Recalls
338Complaints
72
Good

2021

(Current Model)

2Recalls
190Complaints

Kia Soul Reliability Score Trend

Scores 0–100. Higher is better. Current year highlighted.

Kia Soul reliability scores by year
YearScoreRating
201873/100Good
201976/100Good
202070/100Good
202172/100Good
202278/100Good
202377/100Good
202486/100Excellent
202585/100Excellent

Kia Soul Reliability Compared to Other Years

Reliability scores compared across model years
YearScorevs Prior YearRatingRecallsComplaints
202585/100-1Excellent09
202486/100+9Excellent023
202377/100-1Good445
202278/100+6Good178
2021(selected)72/100+2Good2190
202070/100-6Good1338
201976/100+3Good1123
201873/100—Good1199

Frequently Asked Questions

Is the 2021 KIA Soul reliable?
It is reasonably reliable, with a good standing that is above average among 2021 SUVs. Within the Soul lineup, though, it is among the weaker of eight scored years. Engine oil burning and stalling drive most of the complaints, and independent repair-cost data shows yearly costs below the class figure.
What are the most common problems with the 2021 KIA Soul?
Engine problems lead by far. Owners report heavy oil burning with no leak or warning light, plus knocking, power loss, and stalling. Smaller groups describe sudden loss of drive at highway speed, and electrical power cutting out while driving, including headlights, wipers, and the dash going dark.
Does the 2021 KIA Soul burn oil?
Many owners say yes. Reports often describe a quart or more every 1,000 miles, with no visible leak and no warning light. Excessive oil consumption typically shows up between 25,600 and 30,000 miles, though some owners saw it earlier. Check the oil level often if you own one.
Has the 2021 KIA Soul been recalled?
Federal records list 2 recalls for this year, covering the engine and engine cooling. Several owners say the engine problems came back after a recall visit, and some say dealers refused recall work on an engine that had already died. Confirm every recall was completed using the VIN.
Is the 2021 KIA Soul better than the 2020 or 2022?
The 2020 rates about the same, and the 2022 rates better. The 2022 also has far fewer complaints, but it has had less time to collect them, so that gap is not proof. Compare repair records on any specific car you are considering.

Don’t buy a 2021 Kia Soul without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.

Look Up a VIN →

How we score the 2021 Kia Soul

Of the four inputs behind this score, the 2021 Kia Soul does best on repair costs (90/100) and worst on complaint severity (47/100). Scores weight complaint severity at 35%, repair costs at 30%, recall impact at 20%, and the spread of complaints across systems at 15%, with complaint counts adjusted for US sales. Read the full methodology.

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