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2021 Kia Seltos problems: engine and transmission complaints and recalls

VERY HIGH COMPLAINT SIGNAL
86%
313 of 363 relevant owner complaints are about the engine, transmission or fuel system

86% of relevant owner complaints filed with NHTSA on the 2021 Kia Seltos are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 99% of the 1,790 model years we track (2010–2023).

Excludes 9 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 84%).

NHTSA data checked October 3, 2026

The VIN is on the listing, the driver’s door jamb, and the bottom of the windshield on the driver’s side.

Does the 2021 Kia Seltos have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 313 of 363 relevant complaints filed with NHTSA about the 2021 Kia Seltos concern the engine, transmission or fuel system (86%), and the largest group is filed under engine (228). For comparison, the 2022 scores 70%. On a test drive, check for stalling, loss of power, rough idle, oil consumption or a check-engine light. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
313
engine, transmission, fuel
Total complaints
372
this model year
Fires reported
6
owner-reported
Recall campaigns
2
13 crashes · 8 injuries

Complaints by component

ENGINE228 · 61%
POWER TRAIN68 · 18%
ELECTRICAL SYSTEM48 · 13%
UNKNOWN OR OTHER46 · 12%
ENGINE AND ENGINE COOLING44 · 12%
FUEL/PROPULSION SYSTEM26 · 7%

The years either side

2010
no data
2011
no data
2012
no data
2013
no data
2014
no data
2015
no data
2016
no data
2017
no data
2018
no data
2019
no data
2020
no data
2021
86%
313 of 372
2022
70%
49 of 73
2023
45%
20 of 46

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

How the 2021 compares with other Kia Seltos years

Of the 3 Kia Seltos years with enough complaints to score, the 2021 is the worst on engine and transmission share (86%). The best is the 2023 (45%). By volume, the 2021 drew 372 complaints (313 drivetrain), against 73 for the 2022.

Kia Seltos years to avoid and best years →

In the full report

The rest of the picture on the 2021 Kia Seltos

  • The mileage where it happens. When owners of the 2021 Kia Seltos said the problem showed up, and the range most of them fell in.
  • What the repair costs. Typical engine repair ranges, to price into your offer.
  • Cleaner alternatives. Similar cars and nearby years with a better record.
  • Up to 15 owner reports, with the ones about your car's own engine first.
  • What to ask the seller and what to check on the test drive, for this car.
  • Two cars side by side, if you are deciding between them.

What one owner reported

ENGINE03/12/20261 INJURED
I made a turn onto a highway. I got up to 45 mph after my turn and my car stalled. It felt like a was reared ended, my car came to just about a complete stop. It then began to shake and would not accelerate past 5mph to get me over to the side of the road. The check engine light came on. On 2/28/2026 my engine came on,…

One of 313 drivetrain complaints. The full report shows up to 15, with quotes about the engine in the car you are looking at first.

2021 Kia Seltos engine recalls

Yes. NHTSA lists 2 recall campaigns on the 2021 Kia Seltos involving the engine, transmission or fuel system, out of 2 in total. A recall is the manufacturer admitting a defect and paying to fix it; whether a specific car still has one open depends on its VIN, which the full report checks. The owner complaints above are a separate record and often point at problems that never became a recall.

engine and engine cooling: engine: hard parts internal/mechanical25V099000 · Feb 2025

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.

Risk: Engine damage can cause a vehicle stall or fire, increasing the risk of a crash or injury.

Fix: 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,…

engine21V259000 · Apr 2021

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.

Risk: 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.

Fix: 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.…

Source: NHTSA recall campaigns filed against this year, make and model. Checked October 3, 2026.

Checking one particular 2021 Kia Seltos? This page is about the model year. Accidents, title brands and odometer records belong to the individual car, and that is what a vehicle history report covers.

Get a history report from EpicVIN Before you pay: EpicVIN’s $1 offer is a 3-day trial (up to 5 reports) that renews at $49.99 a month unless you cancel. Other plans are listed under “View all our packages” at checkout. We may earn a commission if you buy through this link. It does not change what this page reports.

Questions people ask about the 2021 Kia Seltos

Does the 2021 Kia Seltos have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 313 of 363 relevant complaints filed with NHTSA about the 2021 Kia Seltos concern the engine, transmission or fuel system (86%). Before buying one, have an independent mechanic check the engine and ask the seller whether it has been repaired or replaced.

What is the most common problem with the 2021 Kia Seltos?

Going by NHTSA owner complaints, the most common problem filed against the 2021 Kia Seltos is engine: 228 of 372 complaints (61%) name it, followed by power train (68) and electrical system (48). A complaint can name more than one component, so these overlap.

Is the 2021 Kia Seltos reliable?

On the engine and transmission, owner complaints point to a weak spot: 86% of relevant complaints filed with NHTSA concern the drivetrain (very high signal). That is worse than 99% of the 1,790 model years we track. Among the 3 Kia Seltos years we score, it ranks worst. Complaint data describes the model year, not one car, and it says nothing about trim, paint or electronics outside the drivetrain; an independent inspection still decides it.

Are there engine or transmission recalls on the 2021 Kia Seltos?

Yes. NHTSA lists 2 recall campaigns on the 2021 Kia Seltos involving the engine, transmission or fuel system, out of 2 in total: 25V099000 (engine and engine cooling: engine: hard parts internal/mechanical), 21V259000 (engine). Whether a specific car still has one open depends on its VIN.

Which Kia Seltos years are better?

Among the Kia Seltos years we track, the 2023 (45%) and the 2022 (70%) have a lower engine and transmission complaint share than the 2021 (86%). Manufacturers fix things mid-generation, so the year before or after can be a different car. Every year side by side: https://thelanecheck.com/cars/kia-seltos

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.