Buyer Research

2018 Kia Soul — Should You Buy One?

Typical asking price: $8,000–$13,000. There are 2 high-severity known issues you need to know before handing over a check.

Deciding between model years? Compare the 15 Kia Soul years we've written up →

Kestrel Take

Enormous inside for its footprint, easy to park, cheap to run. The 1.6L GDI and the 2.0L Nu are both reasonable engines, but this is still a Hyundai/Kia of the recall era — the VIN check is not optional.

What we checked

Reconciled against public records, 2026-09-25

NHTSA holds 213 owner complaints for the 2018 Kia Soul, and 1 recall campaign.

A big number here usually means a lot of these were sold, not that it is a bad vehicle — popular models collect more complaints for the same rate of trouble. So the total on its own says little. What is worth reading is the shape of it. 68% of them are about one thing — the engine. That much concentration is a genuine pattern rather than background noise, and it is the first thing to check on any example you look at.

One recall campaign covers this model year. Recalls are repaired free, for any owner, with no time limit on most safety campaigns — but only if someone books it in. Ask the seller to show it was done, or have any dealer check the VIN; it takes them a couple of minutes and costs nothing.

Counts come from the NHTSA complaint and recall database — free, public, and worth checking yourself.

Known Issues for the 2018 Kia Soul

Ranked by wallet impact. These are documented, recurring problems — not freak accidents. How we decide that.

Engine failure / connecting rod bearing wearHigh — wallet impact

Kia extended engine warranties across several engines after the Theta fallout. A knock that tracks RPM is the symptom to walk away from.

Repair cost (estimate): $0 if covered, $4,000-$6,000 if not — around 57% of what this car is typically worth

Source: NHTSA complaints filed under the engine (144).

ABS module fire risk recallHigh — wallet impact

Broad Hyundai/Kia recall — brake fluid can leak into the module and cause a fire even while parked. Confirm closure.

Repair cost: $0 recall

Source: NHTSA complaints filed under electrics and electronics (19), the brakes (7); 1 NHTSA recall campaign on this model year.

Catalytic converter theft targetMedium

High ground clearance and easy access make the Soul one of the most-stolen-from vehicles for converters. Check for aftermarket shields or a replaced cat.

Repair cost (estimate): $1,200-$3,000 — about 29% of what this car is typically worth

Source: not yet checked against public records.

Dual clutch transmission jerkiness (turbo trims)Medium

The 7-speed DCT in turbo models is abrupt at low speed and can shudder.

Repair cost (estimate): $1,500-$3,500 — about 33% of what this car is typically worth

Source: NHTSA complaints filed under the engine (144), the transmission and drivetrain (31).

Walk-Away Red Flags

✗Engine knock
✗Loud exhaust that appeared suddenly — stolen catalytic converter
✗Open recalls
✗Jerky low-speed behavior on a DCT model

Good Signs

✓Recalls closed with paperwork
✓Catalytic converter shield installed
✓Conventional six-speed automatic in the base trim