Last updated: 2026-07-26

2021 KIA Seltos
RELIABILITY SCORE: 59/100 (MIXED)

2021 KIA Seltos Reliability Report

The 2021 KIA Seltos scores 59/100 ("Mixed"). With 2 recalls and 346 owner complaints, buyers should proceed with caution.

Recalls

2

Complaints

346

Complaint Rate

67.4per 10,000 sold

Est. Repair Cost

N/A

Detailed Score Breakdown

Complaint Severity32/100

Component-weighted complaints normalized by sales volume

Repair Costs70/100

Independent repair cost ratings

Recall Impact80/100

Recall count weighted by severity

Issue Diversity75/100

Breadth of reported problem categories

The Verdict

Caution

Mixed reliability — proceed with caution and budget for repairs.

Top Issues to Watch

  • ENGINE (145)
  • POWER TRAIN (61)
  • ENGINE AND ENGINE COOLING (39)

Generation & Refresh (US)

Redesign Year

2021 is the first model year of the First generation (SP2).

  • First-year models may have unresolved issues from the new design.
  • Redesigned for the 2021 model year.
  • Refreshed in 2022, 2024.
  • 1st generation Seltos (US).

What this means for buyers

First-year models carry more risk — early production issues are common. Consider waiting for the second year if reliability is a priority.

Compare 2021 pricing and recall counts against 2022+ before deciding.

2021: First generation (SP2) Launch

Generation start — new platform.

2022: Mid-Cycle Refresh

Updated features and styling tweaks.

2024: Mid-Cycle Refresh

Updated features and styling tweaks.

Should You Buy the 2021 KIA Seltos?

A 59/100 score puts the 2021 KIA Seltos in the "Mixed" tier. Buyers should approach with eyes open. As a first-year redesign, early-adopter issues are common.

Complaint volume sits above average at 346 owner complaints alongside 2 recalls. Issues in engine (145) tend to be the costly ones.

Treat an extended warranty as non-negotiable and put engine (145) at the top of the inspection checklist.

Compared to the 2022 KIA Seltos, which scored 13 points higher.

Pros

  • +Low recall count
  • +4-star NHTSA crash rating

Cons

  • Below-average reliability score
  • Above-average complaint rate for SUV
  • ENGINE issues reported (145 complaints)
  • POWER TRAIN: Transmission failures and excessive oil consumption leading to engine problems (61 complaints)
  • 5 fire incidents reported in owner complaints

Compare 2021 KIA Seltos With

Common Problem Categories

Safety

LOW RISK
  • 2 manufacturer recalls issued

Other

HIGH RISK
  • ENGINE (145)
  • POWER TRAIN (61)

See detailed breakdown by component ↓

Recall Overview

2

recalls on record

The 2021 KIA Seltos carries 2 recalls — a low count. Authorized dealers repair any open recall free of charge, regardless of warranty status.

NHTSA.gov →

Complaint Breakdown

67.4

per 10,000 sold

Segment avg: 16.7

LowAvgHigh
High

Safety Incidents

12

Crashes

5

Fires

8

Injuries

0

Deaths

NHTSA 4/5 Stars

Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.

2021 KIA Seltos Recall Details

2 recalls have been issued for the 2021 KIA Seltos. All recall repairs are performed free of charge at authorized dealerships.

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.

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.

VIN History Report

Buying a used 2021 KIA Seltos? Check its history first

Every 2021 KIA Seltos has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.

Affiliate link — we may earn a commission at no cost to you. No VIN? Just hit “Check VIN” to look one up.

  • Accidents
  • Open Recalls
  • Title History
  • Odometer Rollback

2021 KIA Seltos 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: 15.1%

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)
View full safety data on NHTSA.gov →

KIA SeltosRepair Costs & Maintenance

Maintenance Rating

3.5Maintenance rating: 3.5 out of 5

Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.

Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.

Used Buying Checklist

Key things to inspect or verify before purchasing a 2021 KIA Seltos.

  • Check for excessive oil consumption by inspecting oil levels and looking for blue smoke from the exhaust

  • Test drive to detect any transmission shudder or failure to shift gears

  • Inspect for any engine warning lights or unusual engine noises during acceleration

  • Verify completion of all relevant recalls, especially those related to engine and piston rings

  • Test the vehicle at various speeds to ensure it does not stall or lose power

  • Examine the infotainment system for freezing or lagging issues

  • Inspect for any signs of electrical system malfunctions, such as dashboard lights flickering

2021 KIA Seltos Common Problems by Component

346 owner complaints grouped by vehicle system.

145
61
39
36
ENGINE (145)POWER TRAIN (61)ENGINE AND ENGINE COOLING (39)ELECTRICAL SYSTEM (36)UNKNOWN OR OTHER (30)AIR BAGS (5)VEHICLE SPEED CONTROL (4)STEERING (4)Other (22)

ENGINE

145 complaintsSafety-related

Owners report that the 2021 KIA Seltos frequently experiences excessive oil consumption, leading to engine stalling, rough operation, and in some cases, complete engine failure. Typical symptoms include the engine shutting off unexpectedly, often accompanied by a lack of warning lights, and the need for frequent oil top-ups, even within standard oil change intervals. These issues are often reported to occur between 25,000 and 60,000 miles. Safety implications are significant, with at least one report of a crash and another of a fire, as well as instances of the vehicle losing power while driving, posing a risk of accidents. Potential buyers should be aware of these patterns and verify whether any specific vehicle falls under relevant recalls or warranty coverages.

145 complaints total1 crash1 fire1 injury

POWER TRAIN

61 complaints

Owners report significant issues with the 2021 Kia Seltos' powertrain, primarily involving transmission failures and excessive oil consumption leading to engine problems. Complaints frequently mention symptoms such as stalling, engine surging, and inability to shift gears, often occurring around 7,100 to 75,400 miles. Multiple owners describe situations where their vehicles lose power while driving, sometimes resulting in hazardous conditions like stalling on highways or in intersections. The excessive oil consumption is linked to piston ring defects, with several owners noting rapid oil depletion and engine knocking noises. These issues pose potential safety risks, including engine seizure and loss of control, which are critical for prospective buyers to consider.

61 complaints total

ENGINE AND ENGINE COOLING

39 complaintsSafety-related

Owners report frequent engine failures in the 2021 Kia Seltos, often associated with abnormal knocking sounds, stalling, and excessive oil consumption. Complaints frequently mention warning lights illuminating, engines seizing, and in some cases, vehicles catching fire. These issues are typically noted at mileages ranging from approximately 24,000 to over 110,000 miles. Safety implications include engine fires and sudden loss of power while driving, which can pose significant risks. Used car buyers should be aware of these recurring issues and the potential for unresolved recall-related repairs.

39 complaints total2 fires
ELECTRICAL SYSTEM (36 complaints)

ELECTRICAL SYSTEM

36 complaintsSafety-related

Owners of the 2021 Kia Seltos frequently report issues related to the electrical system, with common complaints involving the infotainment system lagging, freezing, and causing distractions due to Bluetooth disconnections and backup camera failures. Multiple owners describe the vehicle stalling unexpectedly, sometimes accompanied by engine shutdowns and a lack of acceleration, particularly at low speeds or during turns. These issues often occur in vehicles with mileage ranging from 40,000 to 82,000 miles. Safety implications are noted, including a reported crash with injuries due to engine failure and a fire incident linked to electrical components. Used car buyers should be aware of these recurring electrical and engine-related issues, as they may impact vehicle safety and reliability.

36 complaints total1 crash1 fire1 injury
UNKNOWN OR OTHER (30 complaints)

UNKNOWN OR OTHER

30 complaintsSafety-related

Owners of the 2021 KIA Seltos frequently report issues related to unintended acceleration, engine problems, and electrical malfunctions. Common symptoms include the vehicle surging forward unexpectedly, grinding noises, stalling, and various warning lights activating without clear cause. These issues often occur at mileage ranges around 24,000 to 33,000 miles, with some complaints noting problems shortly after engine replacements. Safety implications are significant, with reports of crashes, one involving a fire, and loss of control due to unexpected acceleration or engine failure. Potential buyers should be aware of these patterns and the associated risks when considering this vehicle.

30 complaints total3 crashes1 fire2 injuries
AIR BAGS (5 complaints)

AIR BAGS

5 complaintsSafety-related

Owners of the 2021 Kia Seltos frequently report failures in airbag deployment during crashes, with all five complaints involving such incidents. Common scenarios include frontal impacts with significant vehicle damage, such as collisions with other vehicles and deer, where airbags did not deploy despite substantial front-end damage. Additionally, one complaint describes a side impact from a large object where the side airbag similarly failed to deploy. These incidents often occur at highway speeds, approximately 45 to 60 mph, and have resulted in two reported injuries. The pattern of non-deployment during high-impact crashes is a critical safety issue that potential buyers should consider.

5 complaints total5 crashes2 injuries
VEHICLE SPEED CONTROL (4 complaints)

VEHICLE SPEED CONTROL

4 complaintsSafety-related

Owners of the 2021 Kia Seltos report issues primarily related to unintended acceleration and stalling while in motion. Complaints frequently mention the vehicle accelerating unexpectedly even when the brake pedal is fully depressed, with two incidents resulting in crashes and injuries. Additionally, stalling is reported, where the vehicle suddenly loses power without warning, sometimes accompanied by warning lights on the dashboard. These issues are noted at mileages around 55,000 to 61,000 miles, with one case involving a new transmission being installed. Safety concerns are evident as unintended acceleration and stalling can lead to loss of vehicle control, posing risks of accidents.

4 complaints total2 crashes2 injuries
STEERING (4 complaints)

STEERING

4 complaints

Owners of the 2021 KIA Seltos report several issues related to vehicle operation and safety. Complaints frequently mention the car stalling unexpectedly, both when stopped and while driving at various speeds, often accompanied by dashboard warning lights, including the engine light. These stalling incidents are noted at mileage as low as 5,000 to 15,000 miles. Additionally, one owner reports the car locking in park and being unable to move, alongside instances where the speedometer incorrectly displays 0 mph while driving at highway speeds. Safety implications are present, as these issues occur during active driving, potentially leading to loss of control. Buyers should be aware of these symptoms when considering a used 2021 KIA Seltos.

4 complaints total
FUEL/PROPULSION SYSTEM (4 complaints)

FUEL/PROPULSION SYSTEM

4 complaints

Owners report issues with the 2021 KIA Seltos fuel system, primarily involving gas fumes, engine sputtering, and unexpected vehicle shutdowns. Common symptoms include smelling gas fumes both inside and outside the vehicle, engine sputtering, and the vehicle shutting off unexpectedly, often accompanied by difficulty restarting. These issues appear at varying mileages, with one owner experiencing problems at 83,000 miles. Safety implications include potential loss of vehicle control during operation, as the vehicle may shut off while driving, posing a risk of being stranded or obstructing traffic. Multiple owners describe repeated visits to dealerships without resolution, suggesting ongoing challenges in diagnosing and repairing these fuel system issues.

4 complaints total
SERVICE BRAKES (2 complaints)

SERVICE BRAKES

2 complaints

Owners of the 2021 KIA Seltos frequently report issues related to engine stalling and brake malfunctions. Complaints describe instances where the engine shuts off unexpectedly, sometimes accompanied by the brakes and steering wheel locking, resulting in a temporary loss of control. These issues often occur around the 19,000-mile mark. In one case, the vehicle rolled backward on an incline, prompting the use of the emergency brake to avoid a collision. Safety implications include potential loss of control, although no crashes or injuries are reported in these complaints.

2 complaints total

When Do 2021 KIA Seltos Problems Start?

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

25,000–60,000 milesExcessive oil consumption
7,100–75,400 milesTransmission failures

Best & Worst KIA Seltos Years

Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.

Best KIA Seltos Years to Buy

The best KIA Seltos year is 2026 with a reliability score of 82/100, rated excellent. Other strong picks include 2025 (79/100) and 2024 (73/100).

KIA Seltos Years to Avoid

The worst KIA Seltos year is 2021 with a score of 59/100, primarily due to engine (145) issues.

59
Mixed

2021

(Current Model)

2Recalls
346Complaints

KIA Seltos Reliability Score Trend

KIA Seltos reliability has improved in recent years, with newer models scoring an average of 78/100 compared to 68/100 for older years.

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

KIA Seltos reliability scores by year
YearScoreRating
202159/100Mixed
202272/100Good
202372/100Good
202473/100Good
202579/100Good
202682/100Excellent

KIA Seltos Reliability Compared to Other Years

Reliability scores compared across model years
YearScorevs Prior YearRatingRecallsComplaints
202682/100+3Excellent03
202579/100+6Good012
202473/100+1Good241
202372/1000Good244
202272/100+13Good169
2021(selected)59/100Mixed2346

Frequently Asked Questions

Is the 2021 KIA Seltos reliable?
The 2021 KIA Seltos has a "Mixed" reliability rating (59/100) and may present some ownership challenges. With 2 recalls and 346 complaints, buyers should research known issues carefully.
What are the most common problems with the 2021 KIA Seltos?
The most commonly reported problems with the 2021 KIA Seltos include: ENGINE (145 complaints), POWER TRAIN (61 complaints), ENGINE AND ENGINE COOLING (39 complaints), ELECTRICAL SYSTEM (36 complaints), UNKNOWN OR OTHER (30 complaints). These issues were identified from owner complaints analyzed by Auto Reliability Index.
How many recalls does the 2021 KIA Seltos have?
The 2021 KIA Seltos has 2 recalls on record. Recalls are safety or compliance fixes issued by the manufacturer and repaired at no cost at authorized dealerships.
Is the 2021 KIA Seltos expensive to maintain?
The 2021 KIA Seltos may have above-average maintenance costs. Its reliability score of 59/100 and 346 owner complaints suggest that unexpected repairs are more likely.

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

Affiliate link — we may earn a commission at no cost to you.

Look Up a VIN →

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

1

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.

2

Repair Costs

Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.

3

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.

4

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.

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