2021 Kia Seltos · symptom sheet

Check engine light or misfire

73owner reports
60,000median miles
$1,304median quote
0involved a crash

Newest report Sep 4, 2026 · checked Sep 9, 2026

287 of the 365 complaints on this car are about the engine. 73 of those describe misfire.

Tick what matches of 73 reports

rough idle or shaking

a P0300-series code

the light flashes

coils or plugs were replaced

it came back after repair

What got replaced

Owners who name the part that was replaced mention the spark plugs (7 reports), the sensor (4 reports) and the injectors (3 reports).

Recalls and investigations

2 recalls on the engine cover the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.

25V-099Feb 17, 2025

Engine And Engine Cooling:Engine:Hard Parts Internal/Mechanical

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 and remedy

Risk: 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.

21V-259Apr 13, 2021

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.

Risk and remedy

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.
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.

NHTSA investigations into the engine on the Seltos

AQ25-001opened Aug 6, 2025

Engine And Engine Cooling · model years 2021 to 2023

Kia 25v099 piston oil ring recall effectiveness. Closed dec 18, 2025.

NHTSA summary

On August 6, 2025, the Office of Defect Investigation (ODI) opened Audit Query (AQ) 25001 to assess the implementation of Kia America, Inc.âs (Kia) remedy program for Safety Recall 25V099, involving incorrectly manufactured piston oil rings which may damage the engine causing a loss of motive power or fire. This AQ was opened in response to consumer complaints alleging of an ineffective remedy, inconsistent inspection results to determine whether an engine replacement was needed, and the unavailability of recall remedies. On August 11, 2025, an Information Request (IR) was issued to Kia requesting: 1) why the inspection test was revised from requiring a âcoldâ engine to a âwarmâ engine; 2) why the recall remedy was suspended from April 30, 2025 to May 7, 2025; 3) how Kia notified customers of the recall remedy suspension and the need to re-test engines that failed the âcoldâ engine test; 4) the number of post-recall remedy complaints alleging engine or other engine related failures; and 5) the warranty coverage Kia is offering to vehicles that passed either inspection tests. On September 10, 2025, Kia responded to NHTSAâs IR: Kia reported the change in temperature from âcoldâ to âwarmâ engine testing was done to increase accuracy. The inspection test uses diagnostic tools that detects abnormal engine vibrations to identify damaged engines. From the initial launch of the Technical Service Bulletin (TSB) on April 4, 2025 through April 28, 2025, âcoldâ

What owners paid

9 of the 73 reports quote a price. Each dot is one quote. The middle half runs $500 to $7,182.

$500$1,304$7,182

$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 38,967 and 85,000 miles, from the 39 reports that gave a mileage.

221

622

523

624

2425

3026

What owners wrote

“The car makes a jumping/jerking movement & at times, something that seems like a misfire happens. All lights go on and the car will do that jerking issue & become un drivable. This happened to me on the road and I was afraid for my safety as I couldnât get my car to a safe place immediately. Brought it to my mechanic and he gave me forms of a recall regarding 2021 Kia Seltos which is what I have.”
Filed Feb 4, 2026

“I own a kia seltos 2021 with 2.0 engine wich is 4 cylinders, but my vehicle from las 70k miles is been burning oil to the point that I have to keep checking oil level every 1000miles otherwise my engine is turns super hot and burn oil when I try filling up also make a loud sound on the exhaust and smell like burning oil.”
Filed Mar 1, 2025 · 70,000 miles

“While driving at low speeds, the vehicle would stall, no engine lights or warnings would appear on the dashboard. After turning it off and back on, it would run but stall again shortly later. An unfamiliar foul odor appeared from the dipstick as I checked the oil. Car only has 60k miles on it. Engine is throwing codes for cylinder 1, cylinder 2 and crankshaft.”
Filed Jan 10, 2025 · 60,000 miles

“My 2021 Kia seltos has a flashing engine light and when put on a code reader it indicates a misfire/ piston. This has been going for two weeks . My engine is a 2.0 and the recall for this vehicle has the same incident as mine. The engine keeps shutting off”
Filed Dec 31, 2024

Should you keep driving it?

This page can't tell you that. 0 of 73 reports involved a crash and 1 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.