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2020 Hyundai Elantra: engine and transmission complaints

VERY HIGH COMPLAINT SIGNAL
66%
148 of 225 relevant owner complaints are about the engine, transmission or fuel system

66% of relevant owner complaints filed with NHTSA on the 2020 Hyundai Elantra are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 88% of the 1,230 model years we track (2010–2023).

Excludes 32 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 58%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
148
engine, transmission, fuel
Total complaints
257
this model year
Fires reported
6
owner-reported
Recall campaigns
3
21 crashes · 16 injuries

Complaints by component

ENGINE110 · 43%
POWER TRAIN48 · 19%
EXTERIOR LIGHTING28 · 11%
ELECTRICAL SYSTEM27 · 11%
UNKNOWN OR OTHER26 · 10%
STEERING20 · 8%

The years either side

2010
15%
59 of 454
2011
32%
121 of 460
2012
34%
181 of 674
2013
26%
290 of 1,334
2014
55%
193 of 391
2015
47%
110 of 262
2016
54%
142 of 299
2017
47%
343 of 790
2018
64%
196 of 330
2019
76%
143 of 253
2020
66%
148 of 257
2021
20%
20 of 129
2022
29%
25 of 116
2023
30%
46 of 166

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Same car, a better year

Other compact cars with no elevated signal in 2020

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

SEATS,UNKNOWN OR OTHER,ENGINE08/27/2021FIRECRASH2 INJURED
Car emitted carbon monoxide into car cabin, causing driver to lose consciousness and crash on highway and burst into flames
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE09/09/2026CRASH1 INJURED
2020 HYUNDAI [XXX], VIN: [XXX] Incident Description: On XXX I was pulling into a parking spot and had my foot firmly on the brake pedal. When I attempted to shift the vehicle into Park the engine suddenly revved up excessively. The vehicle then accelerated forward on its own and crashed into a building. INFORMATION RED…
ENGINE09/10/2026
The vehicle entered limp mode. The Hyundai dealer diagnosed a camshaft problem, said the repair would be covered, ordered the part, and began the work. After the engine was opened, the dealer noted sludge/varnish and denied coverage, claiming lack of maintenance. This VIN is included in safety recall 21V301 for imprope…

Three of 148 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on this model year (3)

ENGINE
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 …
WHEELS:LUGS/NUTS/BOLTS/STUDS
Hyundai Motor America (Hyundai) is recalling certain 2019 Ioniq Hybrid and 2020 Elantra vehicles. The right-side rear wheel lug nuts may have been insufficiently tighten…
SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT
Hyundai Motor America (Hyundai) is recalling certain 2020 Elantra vehicles. The lower control arm ball joint fasteners may have been insufficiently tightened allowing th…

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2020 Hyundai Elantra

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 2 body styles NHTSA files separately.