NHTSA vehicle safety data
2021 Kia Soul Recalls, Ratings & Complaints
The 2021 Kia Soul has 2 NHTSA recall campaigns and 240 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Kia dealer.
NHTSA recall and complaint data for the 2021 Kia Soul, plus NCAP crash-test ratings. Recall data is refreshed daily from NHTSA.
2021 Kia Soul owner complaints
Owners have filed 240 complaints with NHTSA about the 2021 Kia Soul, describing incidents dated October 26, 2020 to October 5, 2026.
Most-cited components
- Engine 186 complaints
- Unknown or Other 27 complaints
- Power Train 26 complaints
- Electrical System 15 complaints
- Fuel/Propulsion System 11 complaints
- Service Brakes 10 complaints
Of the 240 complaints on file, 12 report a crash and 3 a fire; across all 240 complaints, owners report 5 injuries (owner-reported, not verified by NHTSA).
Newest complaints
ODI #11774261 · Filed
We have been in dispute with Hart kia and kia corporate over a reoccurring issue directly related to the recall remedy sc336 oil piston rings manufacturer defect that is affecting my vehicle.
ODI #11773473 · Filed
I bought my car brand new. 5 years later, im driving and come to a stop and stall. Crank up, drive and come.to a stop and stall again. I took to dealership twice and another shop for second review. Shop said I should be covered under the oil piston recall, but need to find out. Dealership at first…
ODI #11771357 · Filed
My kia's soul was part of a major safety recall for oil piston ring. The reason it's not showing on a recall list is because they claim to have fixed the issue. And it was removed. The issue is still persistent, and now the car has suffered catastrophic engine failure due to this recall issue. Kia…
Owner-reported
2021 Kia Soul mileage at failure
64 of the 240 complaints on file for the 2021 Kia Soul give the vehicle's mileage when the problem happened.
| Component | Median | Middle half | Based on |
|---|---|---|---|
| Engine | Median 75,000 miles | Middle half 40,000–95,000 miles | Based on 52 complaints |
A component's median is its 50th percentile, and its middle half runs from its 25th to its 75th percentile.
Owners give the mileage themselves, often as a round number, and NHTSA doesn't check it. A complaint that names several components counts under each one, and mileages that can't be right, such as 999,999, or 50 miles on a five-year-old car, are left out.
These figures describe the complaints owners filed. They don't predict when a particular vehicle will have a problem, and vehicles that never had one aren't counted.
Mileage from NHTSA's complaints file of October 31, 2026. How these figures are worked out
NHTSA defect investigations
NHTSA's investigations file lists the 2021 Kia Soul in 1 investigation. Audit Queries and Equipment Queries are administrative investigations: they look at whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules, not at a possible vehicle defect. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
- Audit Query AQ25-001: Kia 25V099 Piston Oil Ring Recall Effectiveness
Closed December 18, 2025
Engine Damage May Cause Stall or Fire
NHTSA #25V099000 · Engine and Engine Cooling — Engine — Hard Parts Internal/Mechanical · NHTSA notice
Reported February 17, 2025 · Kia America, Inc.
Potentially affected: 137,256 vehicles
Repair completion: 66.3% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Kia campaign SC336 · Owners notified April 4, 2025 · Vehicles built July 2, 2020 – April 19, 2022 (per NHTSA) · Recall influenced by NHTSA's Office of Defects Investigation
Defect description
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.
Safety consequence
Engine damage can cause a vehicle stall or fire, increasing the risk of a crash or injury.
Manufacturer 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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or go to nhtsa.gov.
Improperly Heat-Treated Piston Oil Rings
NHTSA #21V259000 · Engine · NHTSA notice
Reported April 13, 2021 · Kia Motors America
Potentially affected: 147,249 vehicles
Repair completion: 90.57% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)
Kia campaign SC209 · Owners notified June 11, 2021
Defect description
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.
Safety 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.
Manufacturer 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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.
Other Kia Soul model years
Check your 2021 Kia Soul VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Kia Soul at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
Check a Kia VIN