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Hyundai Tucson — what actually breaks, by engine

2015–2024 · 4,403 federal complaints · 5 engines

Reliability ratings usually stop at the model. But two Tucsons 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.

Hyundai Tucson
Photo: Charles · CC BY 2.0

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 economy69Running cost62Low emissions68Cabin spacenot measuredCargo spacenot measuredDisplacement32
26 MPG Fuel economy$2,350/yr Running cost344 g/mi Low emissions2.0 L Displacement

Value for money

74/ 100

$22,700

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

GAMMA · 1.6L I4

2015–2018 · Turbo

1,824complaints
Transmission & drivetrain 29%Engine 25%
Show the numbers
ComponentShareMentions
Transmission & drivetrain29.2%725
Engine25.5%632
Brakes2.1%53
Electrical7.5%186
Steering0.6%16
Body & structure6.4%159
Fuel system3.3%82
Everything else25.3%628

2.0L I4

2016–2021 · Naturally aspirated

1,524complaints
Engine 37%
Show the numbers
ComponentShareMentions
Transmission & drivetrain8.1%174
Engine37.5%804
Brakes7.7%165
Electrical8.2%176
Steering0.9%19
Body & structure5.7%122
Fuel system4.1%87
Everything else27.9%599

THETA III · 2.5L I4

2022–2024 · Naturally aspirated

555complaints
Engine 16%Electrical 10%Fuel system 17%
Show the numbers
ComponentShareMentions
Transmission & drivetrain8.6%75
Engine16.4%143
Brakes6.9%60
Electrical9.5%83
Steering1.4%12
Body & structure0.8%7
Fuel system17.3%151
Everything else39.0%340

GAMMA II · 1.6L I4

2016–2024 · Turbo

256complaints
Transmission & drivetrain 11%Engine 15%Electrical 13%
Show the numbers
ComponentShareMentions
Transmission & drivetrain10.8%47
Engine14.9%65
Brakes6.9%30
Electrical13.1%57
Steering0.7%3
Body & structure2.1%9
Fuel system7.8%34
Everything else43.8%191

THETA II · 2.4L I4

2018–2021 · Naturally aspirated

244complaints
Engine 23%Brakes 24%
Show the numbers
ComponentShareMentions
Transmission & drivetrain5.0%18
Engine23.1%83
Brakes24.0%86
Electrical8.1%29
Steering1.7%6
Body & structure1.7%6
Fuel system2.5%9
Everything else34.0%122

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.

GAMMA · 1.6L I4

1,824
Fire0.8%
Crash0.9%
Injury0.7%

2.0L I4

1,524
Fire3.4%
Crash2.4%
Injury1.5%

THETA III · 2.5L I4

555
Fire0.9%
Crash8.1%
Injury3.1%

GAMMA II · 1.6L I4

256
Fire0.4%
Crash6.6%
Injury3.1%

THETA II · 2.4L I4

244
Fire2.0%
Crash2.5%
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.

  • Trailer Hitches — 2022–2024 25V893000
  • Power Train › Automatic Transmission › Fluid/Lubricant › Pump — 2023–2024 23V526000
  • Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module — 2015–2015 22V056000
  • Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module — 2016–2021 20V543000

How this compares with what owners report →

19 recalls · covering 2015–2025

Electrical System 4Power Train 2Service Brakes, Hydraulic 2Equipment 2Trailer Hitches 1Forward Collision Avoidance 1Air Bags 1Engine And Engine Cooling 1
All recalls, with campaign numbers
YearsComponentNHTSA campaign
2022–2024Trailer Hitches25V893000
2023–2024Power Train › Automatic Transmission › Fluid/Lubricant › Pump23V526000
2015–2015Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module22V056000
2016–2021Service Brakes, Hydraulic › Antilock/Traction Control/Electronic Limited Slip › Control Unit/Module20V543000
2025–2025Electrical System › Instrument Cluster/Panel26V400000
2025–2025Forward Collision Avoidance › Automatic Emergency Braking26V316000
2025–2025Air Bags › Side/Window › Curtain25V809000
2025–2025Engine And Engine Cooling › Critical Fasteners25V549000
2025–2025Electrical System › Wiring24V877000
2025–2025Equipment › Other › Labels24V691000
2024–2024Steering › Electric Power Assist System24V412000
2024–2024Equipment › Other › Labels23V556000
2022–2022Structure › Body › Roof And Pillars23V038000
2022–2022Electrical System › Software21V938000
2017–2017Engine21V727000
2016–2017Electrical System › Wiring16V842000
2016–2016Power Train › Automatic Transmission › Control Module (Tcm/Pcm/Tecm)16V628000
2016–2016Latches/Locks/Linkages › Hood › Latch16V348000
2016–2016Exterior Lighting › Tail Lights16V147000

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
★★★★☆

17.4% rollover risk

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

Same segment, side by side — engines, running costs and what breaks.

Or see the whole segment at once: Compact SUV →

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