Diagsheet

2020 Kia Soul · symptom sheet

Engine failure, knocking or rod bearing

  • 83owner reports
  • 51,000median miles
  • $7,000median quote
  • 2involved a crash

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

240 of the 374 complaints on this car are about the engine. 83 of those describe engine failure. Only stalling is reported more often on this car.

Tick what matches of 83 reports

22
9
14
27
21
8

What got replaced

Owners who name the part that was replaced mention the engine (79 reports) and the timing chain (4 reports).

Recalls and investigations

One recall on the engine covers the 2020 model year. A recall on the same system isn't always the same failure, so read the defect text.

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 Soul

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.’s (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 ‘cold’ engine to a ‘warm’ 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 ‘cold’ 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 NHTSA’s IR: Kia reported the change in temperature from ‘cold’ to ‘warm’ 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, ‘coldâ€
DP22-003opened Sep 12, 2022
Engine · model years 2012 to 2020

Loss of motive power. Closed dec 12, 2023.

NHTSA summary
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan as
EA21-003opened Dec 22, 2021
Engine · model years 2012 to 2016

Engine fires. Closed feb 5, 2024, led to recall 23V-877.

NHTSA summary
On March 29, 2019, the Office of Defects Investigation (ODI) opened two Preliminary Evaluations (PE19-003 on Hyundai and PE19-004 on Kia) to broadly investigate incidents of non-crash fires (regardless of origin or operational status of the vehicle) on various model year Hyundai and Kia vehicles. During the PE investigations, Hyundai and Kia issued several recalls to address vehicle fires, including those due to engine failures involving various engine types. The remedies for the engine failure recalls typically involve engine inspection (to detect existing damage), and if necessary, engine replacement. Additionally, both manufacturers have been installing an engine control software modification known as Knock Sensor Detection Software (KSDS) which is intended to detect impending engine failure, alert the driver, and limit engine power (to lessen likelihood of engine failure).KSDS is being installed under recalls and non-safety field actions, and both companies have extended limited engine warranties (see recall files). On December 22, 2021, ODI upgraded PE19-003 and PE19-004 to this Engineering Analysis (EA21-003, covering both Hyundai and Kia) to evaluate the scope of the prior recalls related to engine failures/fires and the efficacy of the recall remedies for the recalls, as well as the long-term viability of related programs and non-safety field actions being conducted by Hyundai and Kia. The former issue involved approximately 550,000 MY 2013 Hyundai Elantra, MY

What owners paid

14 of the 83 reports quote a price. Each dot is one quote. The middle half runs $500 to $8,000.

$500$7,000$8,000
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 12,800 and 100,000 miles, from the 40 reports that gave a mileage.

420
621
822
723
1024
2825
2026

What owners wrote

“My 2020 Kia Soul has around 135,000 miles on it. When accelerating it sounded like a rod or piston was coming through the engine wall. Then began the chugging and loud knocking noises along with engine shutting off. Glad we were not on a railroad track or something like that. We could have easily been killed. No warning lights or sounds at all.”

Filed Jan 19, 2026 · 135,000 miles

“So my car (despite being regularly maintained) had complete engine failure. At 100,300 miles. I was told the bottom half of the engine had complete shut down due to excessive oil burning. The car would start but then when put in gear would die immediately. When originally noticed the engine would shut down when going from a stopped position into moving, usually through an intersection. Not safe at all.”

Filed Feb 27, 2025 · 100,300 miles

“I had software installed for piston rings. Got car back with check engine light on. Brought it back and was told I need a new engine which I need to pay for. Car was bought brand new gave receipt for oil changes.”

Filed Dec 7, 2024

“I was driving to work this morning and my check engine light started flashing.I took it to O'reilly's and plugged it in and it said something wrong with my engine.I just had it serviced and everything was fine and tell all of the sudden.This happened?Time this happened.I had to have 4 new engines put in my Kia.This has to be a recall”

Filed Sep 3, 2024

Should you keep driving it?

This page can't tell you that. 2 of 83 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.

Other problems on this car