Independent · Not affiliated with NHTSA or any automaker MethodologyData sourcesData refreshed Oct 6, 2026

2021 Kia Seltos: Problems, Recalls and MPG

What this means

NHTSA lists 2 recall campaigns for the 2021 Kia Seltos, most recently filed February 2025. Owners have filed 372 complaints with NHTSA, most often about the engine. In NHTSA crash tests it earned 4 stars overall.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
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Recalls (2)

NHTSA lists 2 recall campaigns for the 2021 Kia Seltos. Check whether yours was repaired with NHTSA's free VIN lookup ↗

Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.

Check on NHTSA ↗
Listed for 2021 Kia Seltos. Not checked against your VIN.
Recall 25V099000 Filed Feb 17, 2025

Engine Damage May Cause Stall or Fire

Engine and engine cooling · engine · hard parts internal/mechanical
Official NHTSA text
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.
63.8% repairedof 137,256 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 25V099000
Listed for 2021 Kia Seltos. Not checked against your VIN.
Recall 21V259000 Filed Apr 13, 2021

Improperly Heat-Treated Piston Oil Rings

Engine
Official NHTSA text
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.
90.6% repairedof 147,249 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 21V259000

PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.

Owner complaints (372)

372 complaints filed with NHTSA (owner reports, not verified findings). The engine is mentioned most often.

13involved a crash
6involved a fire
8injuries reported
0deaths reported

As reported by owners in their complaints. These are reports, not NHTSA findings.

Most-reported components

Complaints filed with NHTSA for the 2021 Kia Seltos, by component (top 10). One complaint can list several components, so these add up to more than 372.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2021 compares with other Seltos years

Best and worst Seltos years →
2021202220232024202520262027
This year (2021)Other yearsStill collecting reports

Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.

Crash tests: 4 stars overall

Overall★★★★☆
Frontal crashDriver 5★ · Passenger 4★★★★★☆
Side crashDriver 5★ · Passenger 5★★★★★★
Side pole★★★★★
RolloverRollover risk 16.9%★★★★☆
Front seat of a modern car with the seat belt buckled across the passenger seat
Compare fairly. Compare stars only between vehicles of similar size and weight. Ratings apply to the tested configuration.

Source: NHTSA 5-Star Safety Ratings (NCAP), 2021 Kia Seltos suv fwd, retrieved Oct 6, 2026.

Fuel economy: up to 31 mpg combined

31
mpg combined
29
city
34
highway
EPA annual fuel cost
$2,150
CO₂ tailpipe
285 g/mi
EPA class
Small Sport Utility Vehicle

What it costs you to run

$2,107per year
$176per month
484gallons a year

Miles ÷ 31 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.

EPA label estimates from lab tests; your mileage will vary.

Specs by configuration

2021 Kia Seltos configurations with EPA data
Engine · transmissionDriveCity / Hwy / CombEPA $/yrCO₂ g/mi
2 L 4-cyl · AV-S8 CVTFront-Wheel Drive29 / 34 / 31$2,150285
2 L 4-cyl · AV-S8 CVTAll-Wheel Drive27 / 31 / 29$2,300314
1.6 L 4-cyl · AutomaticAll-Wheel Drive25 / 30 / 27$2,500331

Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2021 Seltos for sale?

Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.

All Seltos years

Where to next

2021 Kia Seltos FAQ

How many recalls does the 2021 Kia Seltos have?

NHTSA lists 2 recall campaigns: 25V099000 (engine), 21V259000 (engine). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2021 Kia Seltos problems?

Owners filed 372 complaints with NHTSA. Engine (228), Power train (68), Electrical system (48) are mentioned most. These are owner reports, not verified findings.

What mpg does the 2021 Kia Seltos get?

EPA rates the 2 L 4-cyl · AV-S8 CVT version at 29 city, 34 highway and 31 combined mpg. Other configurations are listed in the fuel economy section.

What safety rating did the 2021 Kia Seltos get?

NHTSA rated the 2021 Kia Seltos suv fwd 4 stars overall, with 4 stars frontal, 5 stars side and 4 stars rollover (16.9% rollover risk).

How this page was madeSources, processing, limits, review and changes

Processing

  • Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
  • Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.

Limitations

  • Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
  • Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
  • Recent model years are still collecting reports.

Review

Data compiled automatically from the official files listed here.

Changelog

  • 2026-10-06 Data refreshed from the official files.
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