2018 KIA Soul Engine Problems

Source: NHTSA · Updated Oct 14, 2026 · 141 complaints analyzed

Owners have filed 141 complaints with NHTSA about engine problems on the 2018 KIA Soul, 64% of all complaints for this model year. Half of the reports with a mileage happened before 70,812 miles. The words owners use most often: “oil consumption” (21% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Oil consumption: mentioned in 29 of 141 complaints (21%)
  • Engine failed: mentioned in 11 of 141 complaints (8%)
  • Knock sensor: mentioned in 9 of 141 complaints (6%)

How much does it cost to fix?

Owners who wrote down what they paid or were quoted put the typical engine repair on the 2018 KIA Soul at $6,650, and half of them between $470 and $8,650.

Based on 5 NHTSA complaints about this problem alone that state a repair bill or quote (2022–2026), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.

At what mileage do engine problems happen?

Based on 36 complaints that reported the odometer reading.

Under 10k miles3 · 8%
10k–25k miles0 · 0%
25k–50k miles2 · 6%
50k–75k miles14 · 39%
75k–100k miles8 · 22%
100k–150k miles7 · 19%
150k+ miles2 · 6%

How serious are the reports?

Of 141 complaints, 1 mention a crash, 10 a fire.

KIA Soul engine complaints by model year

Peak: 2015, with 630 complaints
2010: 9201092011: 24242012: 20920122092013: 2852852014: 55320145532015: 6306302016: 56120165612017: 1911912018: 14120181412019: 87872020: 24320202432021: 1381382022: 542022542023: 14142024: 5202452025: 11

n = 3,145 complaints · Source: NHTSA

Model yearEngine complaintsShare of that yearMedian miles
2025 Soul18%—
2024 Soul517%7,000
2023 Soul1426%8,872
2022 Soul5457%27,000
2021 Soul13858%41,000
2020 Soul24363%24,037
2019 Soul8764%50,045
2018 Soul14164%70,812
2017 Soul19170%82,000
2016 Soul56169%86,000
2015 Soul63070%93,000
2014 Soul55361%103,052
2013 Soul28543%117,000
2012 Soul20941%119,150
2011 Soul2412%107,000
2010 Soul97%65,000

When owners reported it

Peak: 2022, with 24 complaints
2018: 2201822019: 1201912020: 8202082021: 232021232022: 242022242023: 192023192024: 212024212025: 222025222026: 21202621

n = 141 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine for the 2018 KIA Soul. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

I am reporting excessive engine oil consumption in my 2018 Kia Soul, VIN [XXX], with over 150,000 miles. The engine consumes approximately 1-2 quarts of oil every 1,000 miles. There are no visible external oil leaks, and the vehicle does not produce visible exhaust smoke. I am concerned that this…

Received Oct 14, 2026 · NHTSA complaint 11771265

This Kia has an oil consumption issue I need to add oil every 3 to 4 hundred miles also my oil gets black at least 1 week after an oil change.

Received Sep 9, 2026 · NHTSA complaint 11763090

This Kia has an oil consumption issue I need to add oil every 3 to 4 hundred miles also my oil gets black at least 1 week after an oil change.

Received Sep 9, 2026 · NHTSA complaint 11763089

Frequently asked questions

Do all 2018 KIA Souls have engine problems?

No. NHTSA has 141 owner complaints about engine for the 2018 KIA Soul (64% of the 219 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2018 KIA Soul engine?

No recall currently lists engine for this vehicle.

At what mileage do engine problems start?

The median reported mileage is 70,812 miles: half of the reports with a mileage came before that.

How much does it cost to fix engine problems on the 2018 KIA Soul?

Owners report a typical cost of $6,650 (half paid between $470 and $8,650), from 5 complaints that state a repair bill or quote, in 2026 dollars.

What do owners say about engine problems on the 2018 KIA Soul?

The most frequent phrase is “oil consumption”, in 29 of 141 complaints, followed by “engine failed” (11).

See all 2018 KIA Soul problems or engine problems across all Soul years.