2018 Kia Soul problems & reliability
212 owner complaints filed with NHTSA for the 2018 Kia Soul, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
10 complaints report injuries (12 injured, 1 deaths reported).
Federal crash records (FARS 2020–2023): 2018 Kia Soul vehicles were involved in 62 fatal crashes with 38 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Engine → | 134 | 63% |
| Power Train → | 31 | 15% |
| Unknown OR Other | 29 | 14% |
| Electrical System → | 19 | 9% |
| Air Bags → | 11 | 5% |
| Fuel/propulsion System → | 11 | 5% |
| Engine and Engine Cooling | 9 | 4% |
| Vehicle Speed Control | 8 | 4% |
| Service Brakes | 6 | 3% |
| Steering | 5 | 2% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Common symptoms owners describe
Keyword analysis of complaint narratives; one complaint can describe several symptoms.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 57,000 miles (middle 50% between 14,716 and 85,250 miles), based on 76 complaints that included mileage.
Complaints by incident year
What owners report
“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…”
Engine · filed Jul 25, 2026
“My 2018 Kia Soul has failed on oil consumption test and needs and engine replacement. Kia knows of these issues with these cars but will not cover the engine replacement cost bc the class action suit does not cover oil consumption failure only rod bearings. This will be an issue sooner or later with the oil problem…”
Engine · filed Jul 21, 2026
“During a BBB dispute regarding warranty coverage, Kia Corporate claimed the vehicle is ineligible for safety recall repairs.”
Unknown OR Other · filed Jul 7, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
94 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2018 Kia Soul. The 10 most recent:
TECHNICAL SERVICE BULLETIN: CUSTOMER SATISFACTION: THEFT DETERRENT IGNITION: CYLINDER PROTECTOR & DECAL INSTALLATION (CS2311) - This bulletin has been revised to include additional information. New/revised sections of…
CS2311_TSB_R4 · Service Bulletin/Repair Instructions · issued Jun 9, 2026
PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107 Flight 501) - This document is the owner renotification advising that Kia is conducting an important Product Improvement Campaign to perform a software update…
PI2107_OWNR_501 · Other · issued Apr 8, 2026
CUSTOMER SATISFACTION CAMPAIGN: POSTCARD OWNER RENOTIFICATION (CS2311) - This document is the owner renotification advising that Kia is conducting Customer Satisfaction Campaign. Kia has developed a new zinc-reinforced…
CS2311_OWNR_PC201 · Other · issued Dec 19, 2025
PITSTOP: TECHNICAL OPERATIONS: EXTERNAL DAMAGE TO ULTRASONIC SENSOR: This Pitstop provides information related to Parking Distance Warning (PDW) alerts and repairs involving ultrasonic sensors. The PDW system alerts the…
PS797 · Other · issued Dec 9, 2025
TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN UNDERBODY INSPECTION & ANTI-CORROSION MATERIAL APPLICATION (SC334) - This bulletin has been revised to include additional information. New/revised sections of this…
TSB_SC334_R1 · Service Bulletin/Repair Instructions · issued Aug 20, 2025
PRODUCT IMPROVEMENT CAMPAIGN: OWNER RENOTIFICATION (PI2107) - This document is the owner renotification advising that Kia is conducting a important Product Improvement Campaign to perform a software update on 2017-2019…
PI2107_OWNR_401 · Other · issued Aug 12, 2025
VOLUNTARY SERVICE CAMPAIGN: UNDERBODY INSPECTION & ANTI-CORROSION MATERIAL APPLICATION (SC334) - This bulletin provides information to apply additional anti-corrosion material to underbody components, including…
SC334_TSB · Service Campaign · issued Jun 26, 2025
VOLUNTARY SERVICE CAMPAIGN: OWNER NOTIFICATION (SC334) - This document is the owner notification advising that Kia is conducting a Voluntary Service Campaign to inspect and, if necessary, replace the brake line(s) in…
SC334_OWNR · Service Campaign · issued Jun 23, 2025
VOLUNTARY SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO (SC334) - This document is the announcement to the dealer principals advising that Kia is conducting a Voluntary Service Campaign to inspect and, if necessary, replace…
SC334_DP · Service Campaign · issued Jun 21, 2025
VOLUNTARY SERVICE CAMPAIGN: QUESTION AND ANSWER (SC334) - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary Service Campaign SC334.
SC334_QA · Service Campaign · issued Jun 20, 2025
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2018 Kia Soul has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2018 Kia Soul?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 57,000 miles — budget accordingly if the car is approaching that mileage.