Diagsheet

2021 Kia Soul · symptom sheet

Engine failure, knocking or rod bearing

  • 67owner reports
  • 67,533median miles
  • $6,000median quote
  • 0involved a crash

Newest report Sep 28, 2026 · checked Oct 2, 2026

180 of the 234 complaints on this car are about the engine. 67 of those describe engine failure. Only stalling is reported more often on this car.

2 recalls on this systemcovering the 2021 model year
No crash reportedin 67 reports
NHTSA investigation1 covering the 2021

Tick what matches of 67 reports

17
9
11
15
19
16

Engine failure on other Soul years

Report counts are for each model year on its own, so a newer car has had less time to collect them.

What this problem usually is

These are the reports nobody wants to file. The engine started knocking or ticking, the oil light came on, and then it seized or had to be replaced. Some owners had the replacement covered under warranty or an extension, and plenty were told they'd pay. Several narrower sheets split this group into knocking, seized engines and rod bearing failure.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the engine (67 reports) and the timing chain (7 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

The piston oil rings may have been manufactured incorrectly, which can result in engine damage.

Risk, remedy and owner complaints on recall 25V-099

21V-259Apr 13, 2021
Engine

The piston oil rings may not have been properly heat-treated, which may result in engine damage.

Risk, remedy and owner complaints on recall 21V-259

All 2 recalls on the 2021 Kia Soul, with the owner complaints on each recalled system

NHTSA investigations into the engine on the Soul

AQ25-001opened Aug 6, 2025
Engine · model years 2021 to 2023

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

DP22-003opened Sep 12, 2022
Engine · model years 2012 to 2020

Loss of motive power. Closed dec 12, 2023.

EA21-003opened Dec 22, 2021
Engine · model years 2012 to 2016

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

What owners paid

13 of the 67 reports quote a price. Each dot is one quote. The middle half runs $449 to $7,476.

$449$6,000$7,476
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 25,600 and 88,200 miles, from the 25 reports that gave a mileage.

Complaints by the year NHTSA received them: 2021: 1, 2022: 1, 2023: 4, 2024: 2, 2025: 34, 2026: 251'211'224'232'2434'2525'26

Is this a known problem?

The manufacturer has sent NHTSA 3 service bulletins or notices for the 2021 Kia Soul that deal with this problem. Newest first.

Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.

What owners wrote

“I was travelling on [XXX] in highland Indiana when my engine stopped powering my car and I heard knocking inside. I smelled like and saw smoke everywhere INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”

Filed Apr 29, 2024

“While driving my kia soul 2021 it had a complete engine failure. Completely shut down!!!”

Filed Jul 6, 2023

“2021 Kia Soul started making engine noises as it was being driven home. The next day while driving home there was a loud boom and total loss of power while driving. It coasted to a parking lot. The vehicle had to be towed to the dealership. We are now awaiting approval for total engine replacement via warranty. Vehicle has less than 50K miles. Oil changes were done with synthetic oil.”

Filed Feb 22, 2023 · 50,000 miles

Should you keep driving it?

This page can't tell you that. 0 of 67 reports involved a crash. 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. How reports land on this sheet.

Guide Paid for this repair before a recall covered it? How recall reimbursement works

Other problems on this car