Problems · NHTSA complaints
2018 Kia Soul problems
Owners filed 223 complaints about the 2018 Kia Soul with NHTSA between Mar 2018 and Oct 2026. The most-cited component is engine (143).
Complaints
223
Filed with NHTSA
Crashes
15
Reported by owners
Fires
14
Reported by owners
Injuries
12
People reported injured
Deaths
1
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine143
- Power train32
- Electrical system22
- Fuel/propulsion system11
- Air bags11
- Engine and engine cooling9
- Vehicle speed control8
- Service brakes6
- Steering5
- Structure5
- Exterior lighting4
- Visibility/wiper3
- Wheels3
- Lane departure2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 27, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
9
21
15
31
30
29
29
32
27
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2018 | 9 |
| 2019 | 21 |
| 2020 | 15 |
| 2021 | 31 |
| 2022 | 30 |
| 2023 | 29 |
| 2024 | 29 |
| 2025 | 32 |
| 2026 | 27 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine
143 reports1 crash10 fires
“**Vehicle:** 2018 Kia Soul\ **Mileage:** Approximately 198,000 miles 1\. What component or system failed or malfunctioned, and is it available for inspection upon request?** The engine appears to have experienced a serious malfunction, and the vehicle is no longer moving. I believe the engine may have failed. The vehicle is available for inspection upon request. 2\. How was your safety or the safety of others put at risk?** There is no immediate safety risk at the moment because the vehicle is not being driven. However, an unexpected loss of engine power or the inability to move could create a dangerous situation if it occurred in traffic. 3\. Has the problem been reproduced or confirmed by a dealer or independent service center?** No. The vehicle has not been inspected or diagnosed by a dealer or independent service center. The exact cause of the failure has not been confirmed. 4\. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others?** No. The vehicle has not been inspected by the manufacturer, police, insurance representatives, or any other party. 5\. Were there any warning lamps, messages, or other…”
Power train
32 reports1 crash1 related recall
“The contact owns a 2018 Kia Soul. The contact stated that while driving at 45 MPH, the vehicle stalled and jerked while accelerating and experienced severe jerking while decelerating. The failure had occurred on several occasions. On June 18, 2024, the vehicle failed to accelerate or shift properly. On January 15, 2025, the vehicle shuddered violently and nearly stalled. On April 14, 2026, the vehicle was jerking, and the transmission shifted gears improperly. The vehicle was taken to a dealer, and observed that the vehicle was consuming oil excessively. The dealer replaced the spark plugs and performed an induction cleaning and transmission valve service. The dealer was unable to duplicate the failure after a 36-mile test drive, after the service. From May 27 to May 29, 2026, the vehicle failed to start and was towed to the dealer again, where a new short-block engine assembly was installed. On June 2, 2026, a technician discovered that there was no oil in the engine, resulting in a critical crankshaft failure code. Despite the short block replacement and oil correction, the powertrain failures persisted, and the vehicle failed to exceed 50 MPH. The vehicle…”
Electrical system
22 reports1 crash2 fires1 related recall
“The vehicle is suffering from an extreme internal engine oil consumption defect, burning approximately 3 quarts of engine oil every 500 to 600 miles with no external leaks. The internal oil burning heavily fouled the vehicle's ignition system (spark plugs and coil packs), causing severe engine misfires and a sudden vehicle stall while operating in motion on public highways. This unexpected loss of motive power creates an extreme safety hazard. The local dealership, Paramount Kia of Hickory, refused to follow proper factory Technical Service Bulletin (TSB-ENG219) testing protocols to document the defect, leaving the consumer operating an unsafe vehicle.”
Fuel/propulsion system
11 reports1 crash
“Engine control system is STILL faulty. The engine light will not go off, even after the so called recall Software fix and the brand new engine put in my car in 2025 among other MULTIPLE brand new parts and repairs to my car trying to resolve the engine issue, oil consumption and fuel/gas consumption at rapid and alarming rate, every time after I fill my gas tank.”
Air bags
11 reports8 crashes1 related recall
“I am submitting this complaint regarding failure to complete a federally mandated safety recall and the subsequent release of my vehicle in an unsafe condition after prolonged dealer custody. Vehicle Information provided above Safety Recall Information Recall Type: Federal airbag safety recall Recall Notice Received: 2023 Summary of Safety Concern I delivered my vehicle to authorized Kia dealerships for completion of a federally mandated airbag safety recall. The vehicle remained in dealership custody for approximately seven months without completion of the recall. During this period, the dealerships demanded payment for diagnostics and asserted that recall-related issues were “warranty-related” or “customer responsibility,” which effectively blocked completion of the safety recall. Despite my continued communication and willingness to proceed with recall repair, the recall was not completed. Kia declined to authorize repairs necessary to complete the recall. Vehicle Released Unrepaired and Unsafe The dealership ultimately demanded that I remove the vehicle without completing the safety recall. Upon retrieval of the vehicle, I discovered: Missing and/or altered…”
Engine and engine cooling
9 reports
“The contact owns a 2018 Kia Soul. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the piston oil rings, resulting in damage to the engine. The contact was informed that a piston was missing and that the engine needed to be replaced. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V099000 (Engine and Engine Cooling); but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 130,000.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.