2020 Hyundai Elantra engine problems
115 of the 259 complaints owners filed with NHTSA about the 2020 Hyundai Elantra name the engine (NHTSA’s “Engine” heading — the engine and its cooling system). Filed under the same heading: 40 manufacturer bulletins, 1 recall. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the engine
Source: NHTSA complaint database4 of the 115 reports a crash · 4 a fire · 3 injuries. Self-reported, unverified.
Filed per year: 2019: 2 · 2020: 4 · 2021: 26 · 2022: 11 · 2023: 9 · 2024: 22 · 2025: 18 · 2026: 23
Half of the 35 owners who gave an odometer reading reported the engine problem between 5,000 and 70,000 miles. A median of reports, not the life of a part.
259 complaints in all about the 2020 Hyundai Elantra, 23 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Engine” means the same area of the vehicle, not one fault.
Across model years: Hyundai Elantra engine problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the engine. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
The contact owns a 2020 Hyundai Elantra GT. The contact stated while driving 5 MPH in stop-and-go traffic, the engine light illuminated. While driving, the vehicle stalled. The vehicle was towed to the local dealer, where it was diagnosed that the knock sensor needed to be replaced. The vehicle was repaired, but the failure recurred.
My 2020 Hyundai Elantra stalled on me in the middle of driving it. Only check engine light was on. Had an oil change three months prior to it stalling and not wanting to accelerate.
Had an oil change in March. By June the car stalled in the middle of the street. Restarted it and was difficult to accelerate. Made appt with dealership, couldnt get me in until two months later. Continued having problems car needed more oil and did oil change in July. Continued to drive and it blew a hole in engine.
Vehicle engine seizes and will not start. Happens multiple times. Towed vehicle to dealership and they state there is no recall for this problem however; NHTSA has a recall number of: 21V301000. Really getting the runaround.
The contact owns a 2020 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the engine malfunctioned causing the vehicle to stall. The vehicle was towed to regional Hyundai located at 2380 w kenosha st, broken arrow, ok 74012, to be diagnosed.
What is on file about the engine
Source: NHTSA recalls, investigations and manufacturer communicationsRecall filed under this heading
- 21V301000 CriticalApr 28, 2021 · 158,493 vehicles
- Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Elantra, 2019-2021 Kona and Veloster vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which could result in engine damage.
40 manufacturer bulletins filed under this heading
- 9D3 OL Service campaignSep 11, 2026
- Hyundai has become aware that your Hyundai Elantra equipped with a 2.0 ATK engine may have been incorrectly updated with Cylinder Noise Detection System (CNDS) software intended only for Korean-built Elantra vehicles and may not meet specifications.
- 26-01-033H TSB Warranty extensionMar 26, 2026
- This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22-01-023H-2 (DTC P1326 – Engine Bearing Inspection/Engine Replacement) or the latest version.
- 26-01-033H DN Warranty extensionMar 26, 2026
- This TSB references the Op codes to use for claim submission and the Parts required based on the vehicle’s inspection results from TSB 22-01-023H (DTC P1326 – Engine Bearing Inspection/Engine Replacement) or the latest version.
The 3 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.
Trouble codes named on this system
P1326 P0867 P1327 P0068 P0730 P0731 P0741 P1603
Codes a bulletin or an owner’s complaint about the 2020 Hyundai Elantra names on this model year; a code with a record of its own links it.
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre engine problems common on the 2020 Hyundai Elantra?
They are documented: NHTSA holds 115 owner complaints naming the engine on this model year (44% of everything owners filed about it), and 40 manufacturer bulletins, 1 recall are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the engine on the 2020 Hyundai Elantra?
Yes — one campaign is filed under this heading: 21V301000. A recall is matched by VIN; check yours at nhtsa.gov/recalls.
When do engine problems show up on the 2020 Hyundai Elantra?
Owners who gave an odometer reading reported it at a median of 29,000 miles; half of them between 5,000 and 70,000. That is when reports cluster, not the life of a part.
What does NHTSA's "Engine" heading cover?
The engine and its cooling system. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.