6th Generation (AD) · 2017–2020

Hyundai Elantra: Owner & Buyer Guide

What breaks, what it should cost to fix at an independent shop versus a dealer, when routine service comes due, and what to check before you buy.

Last reviewed: July 2026Reviewed by a drivway-verified technicianSedan only (the Elantra GT hatchback is a separate platform). Covers the base 2.0L Nu MPI (147 hp), 1.4L turbo Eco/Limited, and 1.6L turbo Sport/N Line engines; 6-speed manual, 6-speed automatic, and (2019–2020) IVT transmissions. TODO confirm any trim-specific carryover parts across the 2017 facelift-year vs 2019 refresh.

The short version

The 6th-generation Elantra (2017–2020) is a generally solid, budget-friendly compact — RepairPal has ranked it near the top of its class — but the 2019–2020 model years carry a real piston-ring engine recall (NHTSA 21V301000) tied to abnormal oil consumption and, in the worst cases, engine failure, and early 2017 production had two separate safety recalls of its own (brake booster, power steering). For this generation, checking recall-completion status by VIN matters as much as the usual mileage and service-history checks. This guide is a research skeleton: the recall details and problem descriptions are sourced, but repair cost ranges are marked TODO pending real shop quotes.

Reliability: Generally good for a budget compact — RepairPal has scored the Elantra around 4.5/5, near the top of the compact-car class — but the 2019–2020 model years carry a real engine-recall risk (piston ring heat-treating defect) that makes recall-completion status more important than mileage alone when shopping this generation. TODO confirm current RepairPal/Consumer Reports scores by exact model year before publishing.

What owners like

Low purchase price relative to the rest of the compact-sedan class, with class-competitive fuel economy
Hyundai's 10-year/100,000-mile powertrain warranty (original owner) can still be in effect on later used examples
Simple, well-understood 2.0L base engine with widely available parts
Roomy back seat and trunk for the segment

What to watch

2019–2020 Elantras with the 2.0L Nu MPI engine were subject to a piston-ring recall (NHTSA 21V301000) tied to abnormal oil consumption and, in the worst cases, engine damage
Early-production 2017 models had two separate safety recalls (brake booster, electronic power steering) — worth confirming completion by VIN
Some owners of higher-mileage Nu-engine cars report oil consumption even outside the recall population
TODO confirm — interior materials and infotainment respond typically get "cheap for the segment" complaints in reviews; needs a citable source before stating as fact

Common problems & what they should cost

Independent ranges reflect typical parts + labor at a competent independent shop. Dealer ranges reflect published estimator averages. Your quote depends on your area, parts choice, and related work.

Piston ring heat-treating defect (2.0L Nu MPI, 2019–2020 recall)

Recall population is 2019–2020 model year; symptoms (knocking, oil-pressure light) can appear at varying mileage

Hyundai recalled certain 2019–2020 Elantra (plus related Kona/Veloster) vehicles built with 2.0L Nu MPI engines whose piston oil rings were inconsistently heat-treated by the supplier, leading to excessive ring hardness. That can damage the cylinder bore, cause abnormal engine knock, accelerate oil consumption, and in worst cases lead to engine failure. Hyundai's remedy is inspection and, if needed, a free engine replacement, plus a Piston Ring Noise Sensing System (PNSS) software update that warns the driver of abnormal knock. Always check recall-completion status by VIN before buying a 2019–2020 Elantra.

Independent (if outside recall coverage)$TODO–TODOTODO source — this should be a free dealer repair under the recall; only price out independent cost for cars that fall outside the recall population or coverage windowDealer / chainFree under recall 21V301000, if eligible

Oil consumption on higher-mileage Nu-engine cars

Reported more often past ~60,000–80,000 mi, independent of the recall population

Beyond the specific recall defect, some owners of Nu MPI-equipped Elantras (and related Hyundai/Kia models sharing the engine family) report oil consumption between changes as mileage climbs. It's worth asking for oil-change records and checking the dipstick cold before buying, since a car that's been run low on oil is more likely to show accelerated wear.

Independent (diagnosis)$TODO–TODOTODO source — cost depends heavily on whether it's within normal consumption or points to a bigger repairDealer / chain$TODO–TODO

Brake booster recall (2017 model year)

Recall population: 2017 Elantras built September 2016–January 2017

Hyundai recalled roughly 33,800 2017 Elantras because the brake booster could fail, causing a loss of power brake assist and lengthening stopping distance. Dealers replaced the booster assembly for free. Confirm by VIN whether a 2017 model under consideration already had this recall completed.

IndependentFree if within recall coverage; confirm VIN eligibilityDealer / chainFree if within recall coverage; confirm VIN eligibility

Electronic power steering (EPS) connector recall (2017 model year)

Recall population: early 2017 model year production

A separate 2017 recall covered a damaged Electronic Power Steering (MDPS) connector that could cause a loss of power steering assist, making the car much harder to steer at low speed. Hyundai's remedy was a free EPS motor replacement. Like the brake booster recall, check completion status by VIN.

IndependentFree if within recall coverage; confirm VIN eligibilityDealer / chainFree if within recall coverage; confirm VIN eligibility

Heads up: this guide is a research skeleton — every repair cost range above is a placeholder (marked TODO) pending real independent-vs-dealer quotes; the recall details, model-year populations, and NHTSA campaign numbers are sourced, but treat no dollar figure here as final until it's filled in.

Maintenance milestones

Interval	What's due
Every 7,500 mi	TODO confirm exact interval by engine/oil type — Hyundai's synthetic-oil interval on this generation is commonly cited around 7,500 mi; verify against the specific model-year maintenance schedule before publishing.
Every 5,000–7,500 mi	Tire rotation.
TODO confirm	TODO — automatic/IVT transmission fluid interval; several compact cars in this class call for a first check well before 60k, needs a citable source for the Elantra specifically.
Every 3 years	Brake fluid — time-based, not mileage.
TODO confirm	TODO — spark plug interval by engine (2.0L Nu MPI vs 1.4L/1.6L turbo likely differ).
TODO confirm	TODO — coolant change interval; timing chain/belt inspection (see maintenance note below).

Good to know: TODO confirm per engine — the 2.0L Nu MPI and turbocharged Gamma/Kappa engines used across this generation are generally reported as timing-chain designs (no scheduled belt-replacement interval), but this needs verifying against Hyundai's published specs per engine before stating as fact in a published guide.

Buying a used one? Check these first

A 20-minute inspection catches the issues that actually cost money on this generation. Bring this list to your pre-purchase inspection.

Check recall-completion status by VIN before anything else. This generation carries three separate NHTSA safety recalls that matter for a used buyer: the 2019–2020 piston-ring engine recall (21V301000), and the 2017-model-year brake booster and EPS connector recalls. All three remedies are free at a Hyundai dealer if not yet completed — confirm before you factor anything else into your offer.
Cold-start the engine and listen for knock, especially on 2019–2020 2.0L cars. Abnormal knocking noise is one of the documented symptoms behind the piston-ring recall. Listen on a cold start before the oil has fully circulated, when it's most noticeable.
Check the oil level and condition, and ask for service records. Nu-engine Hyundais have a reported tendency toward oil consumption on higher-mileage cars. A dipstick reading low, or a seller who can't produce oil-change history, is a yellow flag worth negotiating on.
Test the power steering and brakes at low speed. Confirms the 2017-only EPS and brake-booster recalls (if applicable) were actually remedied, not just marked complete on paper — feel for consistent steering effort and a firm, non-sinking brake pedal.
TODO confirm — scan for stored/pending codes. TODO — standard practice for any used-car purchase; no Elantra-specific code pattern sourced yet for this generation.

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Frequently asked

Is the Hyundai Elantra reliable?

Generally yes for the segment — RepairPal has rated the Elantra around 4.5 out of 5, near the top of compact cars — but the 2019–2020 model years have a documented engine recall (piston ring heat-treating defect) that makes recall status more relevant than usual when shopping this generation. TODO confirm current-year reliability scores before publishing.

Does the Hyundai Elantra have an engine recall?

Yes — certain 2019–2020 Elantras with the 2.0L Nu MPI engine were recalled (NHTSA campaign 21V301000) over piston oil rings that weren't consistently heat-treated, which could cause abnormal oil consumption, engine knock, or in the worst cases engine failure. Hyundai's fix is a free inspection/engine replacement plus a software update. Always check VIN-specific recall status before buying a 2019–2020 model.

What are common Hyundai Elantra problems on this generation?

The headline items are the 2019–2020 piston-ring engine recall, oil consumption reported on some higher-mileage Nu-engine cars more broadly, and two 2017-model-year-only safety recalls (a brake booster that could fail, and an EPS connector that could cause loss of power steering assist).

Are Hyundai Elantra repairs expensive?

TODO — needs real independent-vs-dealer cost research; do not guess at figures here. Parts availability for a high-volume compact sedan like the Elantra is generally good, which tends to help keep routine repair costs reasonable relative to less common cars.

Does the Elantra have a timing belt or timing chain?

TODO confirm per engine before publishing — commonly reported as timing chain across this generation's engines (no belt-replacement interval to budget for), but verify against Hyundai's specs for the 2.0L Nu MPI and the turbocharged engines individually.