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GMC Acadia — what actually breaks, by engine

2015–2025 · 2,304 federal complaints · 4 engines

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

GMC Acadia
Photo: Mr.choppers · CC BY-SA 3.0

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 economy65Running cost62Low emissions65Cabin spacenot measuredCargo spacenot measuredDisplacement48
22 MPG Fuel economy$2,800/yr Running cost404 g/mi Low emissions3.0 L Displacement

Value for money

77/ 100

$29,435

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

LGX · 3.6L V6

2017–2023 · Naturally aspirated

1,364complaints
Transmission & drivetrain 25%Engine 9%Electrical 21%
Show the numbers
ComponentShareMentions
Transmission & drivetrain25.0%479
Engine9.1%175
Brakes3.5%67
Electrical20.8%399
Steering5.8%112
Body & structure0.5%10
Fuel system2.7%51
Everything else32.6%626

LLT · 3.6L V6

2015–2017 · Naturally aspirated

575complaints
Show the numbers
ComponentShareMentions
Transmission & drivetrain7.1%50
Engine4.8%34
Brakes1.7%12
Electrical8.5%60
Steering8.3%58
Body & structure0.7%5
Fuel system1.6%11
Everything else67.3%473

LCV · 2.5L I4

2017–2021

243complaints
Transmission & drivetrain 26%Electrical 15%
Show the numbers
ComponentShareMentions
Transmission & drivetrain26.2%93
Engine6.8%24
Brakes6.8%24
Electrical15.5%55
Steering2.8%10
Body & structure0.3%1
Fuel system2.3%8
Everything else39.4%140

LK0 · 2.5L I4

2018–2025

122complaints
Brakes 34%
Show the numbers
ComponentShareMentions
Transmission & drivetrain5.9%11
Engine7.5%14
Brakes33.9%63
Electrical6.5%12
Steering2.7%5
Body & structure1.6%3
Everything else41.9%78

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.

LGX · 3.6L V6

1,364
Fire0.1%
Crash2.0%
Injury1.2%

LLT · 3.6L V6

575
Fire1.2%
Crash2.3%
Injury1.9%

LCV · 2.5L I4

243
Fire0.4%
Crash2.1%
Injury1.2%

LK0 · 2.5L I4

122
Fire0.0%
Crash2.5%
Injury1.6%

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.

23 recalls · covering 2015–2023

Air Bags 5Power Train 4Fuel System, Gasoline 4Tires 3Visibility 2Back Over Prevention 1Equipment 1Suspension 1
All recalls, with campaign numbers
YearsComponentNHTSA campaign
2023–2023Visibility › Windshield23V681000
2015–2017Air Bags › Frontal › Driver Side › Inflator Module23V334000
2023–2023Power Train › Automatic Transmission23V172000
2023–2023Power Train › Driveline › Driveshaft23V043000
2020–2021Back Over Prevention › Sensing System › Camera22V709000
2023–2023Equipment › Other › Labels22V708000
2022–2022Fuel System, Gasoline › Storage › Tank Assembly22V446000
2022–2022Suspension › Rear22V427000
2015–2015Air Bags › Frontal › Driver Side › Inflator Module22V246000
2022–2022Air Bags21V702000
2021–2021Fuel System, Gasoline › Delivery › Hoses, Lines/Piping, And Fittings21V422000
2015–2016Air Bags › Critical Fasteners21V246000
2019–2020Tires21V115000
2020–2020Tires20V684000
2019–2020Power Train › Automatic Transmission20V668000
2020–2020Fuel System, Gasoline › Delivery › Fuel Pump20V639000
2020–2020Air Bags › Side/Window › Curtain › Inflator20V446000
2017–2018Fuel System, Gasoline › Delivery › Fuel Pump18V358000
2017–2018Power Train › Driveline › Driveshaft17V516000
2017–2017Service Brakes, Hydraulic › Foundation Components › Disc › Caliper16V802000
2016–2016Seats15V833000
2016–2016Visibility › Windshield Wiper/Washer › Motor15V609000
2015–2015Tires15V044000

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
★★★★☆

18.5% rollover risk

Model yearOverallFrontalSideRollover
2015★★★★★★★★★★★★★★★★★★★☆
2016★★★★★★★★★★★★★★★★★★★☆
2017★★★★☆★★★★★★★★★★★★★★☆
2018★★★★☆★★★★★★★★★★★★★★☆
2019★★★★☆★★★★★★★★★★★★★★☆
2020★★★★★★★★★★★★★★★★★★★☆
2021★★★★★★★★★★★★★★★★★★★☆
2022★★★★★★★★★★★★★★★★★★★☆
2023★★★★★★★★★★★★★★★★★★★☆
2024★★★★★★★★★★★★★★★★★★★☆
2025★★★★★★★★★★★★★★★★★★★☆
Stability control: 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: Midsize SUV →

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