The short list
Where the money goes wrong — and where it doesn’t.
✕ Years to avoid
The loudest year we track, and the failure is the uncovered one. 414 federal complaints, the highest of the eight, and the file is almost single-minded: the engine drinks oil with no external leak. One owner measures a quart per 1,000 miles, another checks the oil daily. Hyundai's warranty extension is real and generous, but it is written against connecting-rod-bearing damage and administered through a Bearing Clearance Test — an engine that burns oil and passes that test is outside it, which is why this file contains an owner paying $1,800 twice in a year and another quoting $8,000 in total. On top of that, this is the only model year carrying two separate anti-lock-brake fire recalls, 22V056 and its expansion 22V810, on both of which Hyundai's advice is to park the car outside.
Same engine, and the year a fire recall arrives. 341 federal complaints, more than five times the 2016 car. Half of it is the Theta II engine, named by owners themselves down to the part and the code. A large second cluster is unusual and worth knowing before you panic: owners report the car began hesitating on cold starts immediately after Hyundai Service Campaign 9C2, an emissions software update. Hyundai's own follow-up bulletin says that is expected and lasts one to three minutes from a cold start while the catalytic converter warms. The item to act on is 22V056, where the anti-lock-brake module can short and start an engine-bay fire.
Four powertrains, eight recalls, and a hybrid with no answer. 251 federal complaints across a plain 2.5, a 2.5 turbo, a hybrid and a plug-in. The hybrids account for 60 of them and say almost the same thing every time: at speed the petrol engine fails to start to assist, the battery drains, the dash reads "Check Hybrid System, Stop Safely," and the car will not accelerate. Switch it off and restart and it drives normally with no stored code, so no dealer can reproduce it, and there is no recall and no bulletin naming the symptom. Add a turbocharger oil pipe that can crack and start a fire, 22V197, and a plug-in fuel tank recall, 23V028.
✓ Years to hunt for
The quietest file of the eight, on the engine with the worst reputation. 65 federal complaints and a single recall for a hood latch cable, against 341 on the 2017 and 414 on the 2018 for the same vehicle. Part of that gap is documented scope: the 2016 Sport was left out of both anti-lock-brake fire recalls and out of Service Campaign 9C2, and campaigns of that kind generate a lot of paperwork complaints. The engine is still Theta II and the small file that exists is engine-heavy, including three fires. What makes it buyable is the coverage: Hyundai's bulletin extends the engine long block warranty for connecting-rod-bearing damage to a Limited Lifetime Warranty on this exact vehicle, valid for later owners, and this is also the last model year inside the 10-year, 120,000-mile panoramic sunroof glass extension.
Two recalls, and the engine story is finally over. The last year of the generation and the cleanest on recalls: two, against eight on each of the 2021 and 2022. The 2.5-litre Theta III is unrelated to the old Theta II despite the family name, and a mechanic who took one apart is enthusiastic about it, noting it runs both port and direct injectors so it should resist the carbon build-up that plagued the older engines. The complaint count is still high at 276, but what is in it is a dual-clutch gearbox, a horn Hyundai now covers to 10 years and 120,000 miles, warped brake rotors with a bulletin behind them, and glass that shatters on its own. None of that ends the car.
Same year. Different engine.
One badge, several engines — the year’s verdict assumes the riskiest one. Yours might be the calm one.
Which engine is in the one you found?
Two engine families and a hard line at 2021 — everything before it is Theta II, everything after is newThe volume engine, and the reason the Santa Fe has the reputation it has. A 2.4-litre four with GDI, meaning Gasoline Direct Injection, fitted to most Santa Fe Sports through 2018 and most Santa Fes in 2019 and 2020. Its failure is the connecting-rod bearings — the metal shells the piston rods spin on — wearing early, and it arrives in a fixed order: oil consumption creeps up, a deep knock appears, then the engine seizes, sometimes at speed. Hyundai's answer has two halves and neither is a safety recall, which is why a service adviser can truthfully tell you there is no recall on your engine. First, Hyundai Service Campaign 966 installs KSDS, the Knock Sensor Detection System, software that detects, in the bulletin's own words, "vibrations indicating the onset of excessive connecting rod bearing wear" and warns the driver early; the diagnostic code is P1326. Second, Hyundai extended the warranty on the engine long block for connecting-rod-bearing damage — to 10 years or 120,000 miles, and then to a Limited Lifetime Warranty, both "valid for original and subsequent owners." Read the scopes carefully: the Limited Lifetime tier's bulletin names the 2013 to 2018 Santa Fe Sport, and the 2019 Santa Fe has its own bulletin at 10 years or 120,000 miles. We found none naming the 2020. The catch on all of it is a Bearing Clearance Test: an engine that burns oil but passes does not open the coverage, which is where the bills in the 2018 file come from.
Same bearings, three more things to check. The 2.0-litre turbocharged member of the same Theta II family, and Hyundai's knock-sensor campaign and rod-bearing warranty name it alongside the 2.4, so the engine story and the coverage are identical. What differs is what the turbo adds, and an independent mechanic who works on these lays it out in order. Carbon builds on the intake valves because the engine is direct-injected; he expects it on any of these approaching 100,000 miles and the fix is walnut blasting. The turbocharger's boost control actuator seizes, and the check is simply whether the rod that operates the wastegate still moves. And the oil feed pipe to the turbocharger was the subject of Hyundai Service Campaign T1N on 2013 to 2016 Santa Fe Sports — he calls the updated part "an effective solution," so the only question is whether it was done. One useful diagnostic from a shop video: a stored code P0299 reads as underboost but is not automatically a dead turbo. On the car in that video it was a leak in the charge piping, and his rule is that a turbocharger does not make much noise unless it has actually come apart.
The clean-sheet base engine — and its injectors. New for 2021 and unrelated to the old Theta II despite the family name. There is no rod-bearing story, no oil-consumption cluster and no knock-sensor campaign on it, which is the single biggest improvement in this vehicle's history. Its recurring fault is narrower: Hyundai's bulletin states that "some vehicles equipped with a 2.5L GDI Theta III engine (non-Turbo) may exhibit one or more misfire [codes] due to the GDI fuel injectors leaking internally. This may be caused by internal filter breakage in the injector," and instructs dealers to "replace all 4 injectors" rather than the failed one. That bulletin's scope is the 2021 and 2022 Santa Fe, and the complaint files show what it feels like — hesitation on acceleration, a stumble at a stoplight, and at worst one owner whose engine had to be replaced entirely after an injector failure. On cars this age it is usually a warranty repair, so ask whether it has been done and whether all four went in together.
A very good engine attached to the one part everybody complains about. The turbocharged 2.5 is well liked. A mechanic who took a 2023 apart calls it "a beautiful engine," notes it runs four port injectors and four direct injectors so it should resist carbon build-up, and approves of its integrated exhaust manifold and vacuum-controlled wastegate. The problem is what it drives through: an eight-speed wet dual-clutch transmission, mechanically closer to two manual gearboxes operated by computer. Recall 22V746 covers 2021 to 2022 cars where a transmission oil pump malfunction can impair the fail-safe limited-mobility mode and cause a complete loss of drive power, with dealers replacing the transmission as necessary. Hyundai's bulletins fill in the rest: a replacement procedure triggered by high-pressure electric oil pump codes P1C2D03, P193B79 and P0868; a control-unit update revising "touch point learning variation, improving drivability and judder symptoms," with some units getting an updated clutch spring; and a procedure to stop moisture reaching the oil pump connector, where it causes "corrosion and insufficient connection of the terminals." Two more fire-risk recalls sit on this engine, 21V524 and 21V308 for fuel leaking at the high-pressure pump joint, and 22V197 for a turbocharger oil pipe that can crack. The mechanic's summary is the fairest one available: driven normally it is "very fast shifting, very smooth shifting," but because there is no torque converter you have no creep at a standstill, so easing forward in traffic means "you're slowly killing your clutch." His verdict on the pairing is that they "made a beautiful engine here and then they put this horrendous transmission" in front of it.
One symptom, hundreds of owners, and nothing published about it. The hybrid and plug-in hybrid arrive for 2021 and 2022 respectively, both built around what Hyundai's own bulletin calls the "1.6T-GDI Gamma II HEV engine." Their complaint files are dominated by a single event: at speed the petrol engine fails to start to assist, the battery drains, the dashboard reads "Check Hybrid System, Stop Safely," and the car will not accelerate. Owners describe coasting across live lanes to the shoulder. Several note it is worse below freezing. The reason it never gets fixed is in every account — switch the car off, wait, restart, and it drives normally with no stored code, so the dealer cannot reproduce it. There is no recall and no Hyundai bulletin that names this symptom, only adjacent ones covering engine control logic for codes P1441 and P1A77 and a hybrid starter generator belt slip. A second, better-documented cluster is a "Refill Inverter Coolant" warning with the reservoir full; Hyundai's bulletin describes exactly that, "a restricted coolant flow condition" where "no related DTCs are stored," and sets out a cooling system clean and coolant change. Hyundai also documents an oil leak from the Continuous Variable Valve Duration actuator seal on this engine. The recalls specific to these versions are 22V816 for seat belt pretensioners that may explode on deployment, 21V00K for an instrument cluster that can display upside down, and 23V028 for an improperly molded plug-in fuel tank. A mechanic who reviewed both versions is blunt about which to buy: "not the plug-in hybrid, which is really not good."
The VIN encodes which of these you are looking at — paste it and we will tell you which row applies and what is still open on it. The two Theta II rows share the knock-sensor campaign and the rod-bearing warranty extension, but their published scopes differ by model year, so confirm the tier with Hyundai in writing rather than assuming. The three 2021-and-later rows share the tow-hitch fire recall 23V181 and the horn warranty extension, which covers horn replacement for 10 years or 120,000 miles.
Decode my VIN — freeEvery year, rated
Each verdict links to the full report: known issues with real repair costs, open recalls, and the print-and-go inspection checklist.
The quietest file of any Santa Fe we track, on the engine with the worst reputation. Buy it for the coverage, not in spite of it.
65 complaints · 1 recalls
Full report →The engine story gets louder and a fire recall arrives. Two of the four recalls are the whole reason to run this VIN today.
341 complaints · 4 recalls
Full report →The loudest year of the eight, and the failure that dominates it is the one Hyundai's engine warranty does not automatically cover.
414 complaints · 4 recalls
Full report →All-new body, same engine. The 2019 is a much better vehicle wrapped around the Theta II you were trying to avoid.
191 complaints · 2 recalls
Full report →The last year of the old engine, and the first year the paint warranty stops covering you. Check the oil, then check the roof.
199 complaints · 2 recalls
Full report →New engines end the oil-consumption story and a new gearbox starts a different one. Eight recalls in the launch year of everything.
183 complaints · 8 recalls
Full report →Four powertrains, eight recalls, and a hybrid file that is almost entirely one sentence: check hybrid system, stop safely.
251 complaints · 8 recalls
Full report →The engine problem is finally over and the gearbox problem is not. Two recalls, and one mechanic's advice: not the plug-in.
276 complaints · 2 recalls
Full report →Two questions, and which one you ask depends entirely on the year. Before 2021: has this engine started drinking oil, and what does Hyundai's warranty letter say for this VIN? From 2021: what does the transmission do pulling away from a stop sign?
Shopping Santa Fe years? We’ll watch them for you.
New recalls, federal investigations, and quiet warranty-extension programs land months after you buy. Tell the canary which years you’re considering — it sings when something changes.
Watch my years — freeCross-shopping?
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