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Kia Sportage — what actually breaks, by engine

2017–2023 · 1,007 federal complaints · 4 engines

Reliability ratings usually stop at the model. But two Sportages with different engines can fail in completely different ways — and the engine is a choice you make at purchase. Here is what owners actually complained about, separated by engine.

Kia Sportage
Photo: AIMHO'S REBELLION 8490s · CC BY-SA 4.0

Ownership profile

Each axis is this model's percentile within its own segment — comparing a pickup's fuel economy against a compact car's would say nothing. Built from EPA test data.

Fuel economy36Running cost39Low emissions32Cabin spacenot measuredCargo spacenot measuredDisplacement66
23 MPG Fuel economy$2,650/yr Running cost386 g/mi Low emissions2.4 L Displacement

Value for money

58/ 100

$23,400

Capability per relative dollar, ranked against the same segment. It divides this model's average percentile across the axes above by its price relative to the segment median — so 80 means it delivers more per dollar than 80% of its class.

Price source: CarAPI vehicle trim database — base-trim MSRP, median across 2015-2020 model years. Unlike every other figure on this page, the price does not come from a federal record. It is the manufacturer's list price for the cheapest trim — what people actually paid varies with incentives and options, so treat this one axis as indicative, not exact.

What each engine's complaints are about

Share of component mentions. One complaint can name several components, so these describe what an engine's complaints are about — they are not a failure rate.

Transmission & drivetrainEngineBrakesElectricalSteeringBody & structureFuel systemEverything else

THETA II · 2.4L I4

2017–2020 · Naturally aspirated

651complaints
Engine 37%Electrical 11%
Show the numbers
ComponentShareMentions
Transmission & drivetrain5.7%53
Engine37.0%346
Brakes5.1%48
Electrical10.9%102
Steering2.7%25
Body & structure3.7%35
Fuel system3.5%33
Everything else31.4%294

THETA III · 2.5L I4

2023–2023 · Naturally aspirated

171complaints
Engine 12%Brakes 12%Electrical 13%
Show the numbers
ComponentShareMentions
Transmission & drivetrain5.7%16
Engine12.4%35
Brakes12.1%34
Electrical13.1%37
Steering1.8%5
Body & structure1.1%3
Fuel system3.9%11
Everything else50.0%141

THETA II · 2.0L I4

2017–2020 · Turbo

105complaints
Engine 38%Electrical 12%
Show the numbers
ComponentShareMentions
Transmission & drivetrain4.3%6
Engine37.6%53
Brakes4.3%6
Electrical12.1%17
Steering2.1%3
Body & structure3.5%5
Fuel system6.4%9
Everything else29.8%42

THETA-II · 2.4L I4

2021–2022 · Naturally aspirated

80complaints
Engine 34%Electrical 12%
Show the numbers
ComponentShareMentions
Transmission & drivetrain3.8%4
Engine34.3%36
Brakes1.0%1
Electrical12.4%13
Steering1.9%2
Body & structure1.0%1
Fuel system2.9%3
Everything else42.9%45

Diagrams show cylinder layout and displacement from the decoded VIN data. Turbo and supercharger marks come from EPA certification records; where EPA cannot tell two engines of the same size apart, the mark is left off rather than guessed.

How many of those complaints involved a fire, crash or injury

Unlike the totals above, these can be compared between engines. Each figure is a share of that engine's own complaints, so how many were sold cancels out. The vertical mark is the average across every vehicle in this database.

THETA II · 2.4L I4

651
Fire7.2%+
Crash4.8%
Injury3.5%

THETA III · 2.5L I4

171
Fire0.6%
Crash11.7%
Injury7.0%

THETA II · 2.0L I4

105
Fire4.8%+
Crash1.9%
Injury1.9%

THETA-II · 2.4L I4

80
Fire10.0%+
Crash10.0%
Injury2.5%

all vehicles — Fire 1.1% · Crash 4.4% · Injury 2.6%

Still a share of complaints, not of vehicles on the road — it says how severe this engine's reported problems were, not how often it gets into trouble. Engines with fewer than 80 complaints are left out: fire is rare enough that a single extra case would swing the number.

Recalls on this model

Unlike everything above, recalls are issued for the whole model, not per engine — NHTSA publishes them by make, model and year. These are defects the manufacturer confirmed and filed federally, which makes them a useful counterweight to owner-reported complaints.

NHTSA told owners to park outside, away from buildings

The defect can start a fire even with the car parked and switched off.

  • Power Train › Automatic Transmission › Fluid/Lubricant › Pump — 2023–2023 23V531000
  • Trailer Hitches — 2017–2022 22V703000
  • Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module — 2015–2016 22V051000
  • Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module — 2017–2021 21V137000

How this compares with what owners report →

13 recalls · covering 2015–2025

Trailer Hitches 3Service Brakes, Hydraulic 3Electrical System 2Power Train 1Steering 1Structure 1Air Bags 1Fuel System, Gasoline 1
All recalls, with campaign numbers
YearsComponentNHTSA campaign
2023–2023Power Train › Automatic Transmission › Fluid/Lubricant › Pump23V531000
2017–2022Trailer Hitches22V703000
2015–2016Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module22V051000
2017–2021Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module21V137000
2024–2025Trailer Hitches25V874000
2024–2024Steering › Electric Power Assist System24V422000
2023–2024Structure › Body › Roof And Pillars24V025000
2023–2023Service Brakes, Hydraulic › Power Assist23V410000
2023–2023Electrical System › Instrument Cluster/Panel23V298000
2023–2023Air Bags › Side/Window › Curtain22V878000
2023–2023Electrical System › Alternator/Generator/Regulator22V651000
2015–2018Fuel System, Gasoline › Delivery › Hoses, Lines/Piping, And Fittings18V907000
2017–2017Trailer Hitches16V862000

Recall repairs are free, always — any franchised dealer, regardless of the car's age, mileage, or how many owners it has had. A great many cars are driving around with recalls nobody ever redeemed.

More recalls does not mean a worse car. Recall counts rise with sales volume and model complexity, and a manufacturer that recalls promptly looks worse than one that drags its feet. Read what the recalls were for, not how many there were.

Check a specific car by VIN at NHTSA →

NHTSA crash-test ratings

Official 5-star ratings from standardized federal crash tests. Unlike the complaint figures above, these are directly comparable between models. Where a model year was tested in several versions, the lowest overall rating is shown.

Overall · 2025
★★★★★
Frontal · 2025
★★★★★
Side · 2025
★★★★★
Rollover · 2025
★★★★☆

16.9% rollover risk

Model yearOverallFrontalSideRollover
2015★★★★☆★★★★★★★★★★★★★★☆
2016★★★★☆★★★★★★★★★★★★★★☆
2017★★★★★★★★★☆★★★★★★★★★☆
2018★★★★★★★★★☆★★★★★★★★★☆
2019★★★★★★★★★☆★★★★★★★★★☆
2020★★★★★★★★★☆★★★★★★★★★☆
2021★★★★★★★★★☆★★★★★★★★★☆
2022★★★★★★★★★☆★★★★★★★★★☆
2023★★★★★★★★★★★★★★★★★★★☆
2024★★★★★★★★★★★★★★★★★★★☆
2025★★★★★★★★★★★★★★★★★★★☆
Stability control: StandardLane-departure warning: Standard

Source: NHTSA New Car Assessment Program.

Method, sources and limitations

How this was built

  1. Source: NHTSA public complaint database (api.nhtsa.gov), retrieved 2026-08-16. Every complaint carries the first 11 characters of the vehicle's VIN.
  2. Those partial VINs were decoded through NHTSA's vPIC service to identify the exact engine — 98.2% resolved successfully. This is how the data gets to engine level; model-level ratings cannot do this.
  3. Percentages are the share of component mentions, not of complaints. One complaint can name several components, so the figures describe what a given engine's complaints are about — they do not sum to a failure rate.

What this does not tell you

  • This is not a reliability ranking. Complaint totals track how many were sold, not how often they fail. Nobody publishes per-engine sales volume, so comparing totals between engines would be misleading. Read each engine's own breakdown; don't race them against each other.
  • Engines with fewer than 50 complaints are omitted — too small to say anything honest about.
  • Complaints are self-reported by owners. They skew toward problems that are alarming or expensive, and toward vehicles under active recall attention.

Compare with

Or see the whole segment at once: Compact SUV →

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