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2018 Hyundai Elantra problems: engine and transmission complaints and recalls

VERY HIGH COMPLAINT SIGNAL
65%
199 of 308 relevant owner complaints are about the engine, transmission or fuel system

65% of relevant owner complaints filed with NHTSA on the 2018 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 86% of the 1,790 model years we track (2010–2023).

Excludes 26 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 60%).

NHTSA data checked October 17, 2026
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The VIN is on the listing, the driver’s door jamb, and the bottom of the windshield on the driver’s side.

Does the 2018 Hyundai Elantra have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 199 of 308 relevant complaints filed with NHTSA about the 2018 Hyundai Elantra concern the engine, transmission or fuel system (65%), and the largest group is filed under engine (171). For comparison, the 2017 scores 47% and the 2019 scores 76%. On a test drive, check for stalling, loss of power, rough idle, oil consumption or a check-engine light. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
199
engine, transmission, fuel
Total complaints
334
this model year
Fires reported
8
owner-reported
Recall campaigns
1
12 crashes · 7 injuries

Complaints by component

ENGINE171 · 51%
UNKNOWN OR OTHER61 · 18%
ELECTRICAL SYSTEM47 · 14%
POWER TRAIN29 · 9%
FUEL/PROPULSION SYSTEM23 · 7%
SERVICE BRAKES19 · 6%

The years either side

2010
15%
59 of 454
2011
32%
121 of 461
2012
34%
181 of 675
2013
26%
290 of 1,335
2014
55%
195 of 393
2015
47%
111 of 263
2016
54%
142 of 300
2017
47%
345 of 792
2018
65%
199 of 334
2019
76%
145 of 255
2020
66%
150 of 259
2021
20%
20 of 131
2022
30%
26 of 118
2023
30%
46 of 167

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

In the full report

The rest of the picture on the 2018 Hyundai Elantra

What one owner reported

ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM11/16/2025CRASH1 INJURED
Initial Fault Code: P0303 Replaced all 4 spark plugs and all 4 ignition coils. The check engine light extinguished momentarily but returned, logging P0303 and a new P0301 Replaced all 4 fuel injectors. CEL extinguished momentarily and then returned, logging P0303. Replaced the entire engine electrical harness. Conc…

One of 199 drivetrain complaints. The full report shows them, with quotes about the engine in the car you are looking at first.

Are there engine or transmission recalls on the 2018 Hyundai Elantra?

No engine or transmission recalls. NHTSA lists 1 recall campaign on the 2018 Hyundai Elantra, none of them for the engine, transmission or fuel system. A recall is the manufacturer admitting a defect and paying to fix it; whether a specific car still has one open depends on its VIN, which the full report checks. The owner complaints above are a separate record and often point at problems that never became a recall.

1 other recall on this model year (airbags, lighting, brakes and the rest)
electrical system18V891000 · Dec 2018
Hyundai Motor America (Hyundai) is recalling certain 2018 Hyundai Elantra GT vehicles. The panoramic sunroof motor may be incorrectly programmed, preventing the sunroof from detecting an obstacle…

Source: NHTSA recall campaigns filed against this year, make and model; one of NHTSA's listings did not answer when this page was built, so the list may be incomplete. Checked October 17, 2026.

Checking one particular 2018 Hyundai Elantra? This page is about the model year. Accidents, title brands and odometer records belong to the individual car, and that is what a vehicle history report covers.

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Questions people ask about the 2018 Hyundai Elantra

Does the 2018 Hyundai Elantra have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 199 of 308 relevant complaints filed with NHTSA about the 2018 Hyundai Elantra concern the engine, transmission or fuel system (65%). Before buying one, have an independent mechanic check the engine and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2018 Hyundai Elantra?

No. NHTSA lists 1 recall campaign on the 2018 Hyundai Elantra, none of them for the engine, transmission or fuel system.

Which Hyundai Elantra years are better?

Among the Hyundai Elantra years we track, the 2010 (15%), the 2021 (20%) and the 2013 (26%) have a lower engine and transmission complaint share than the 2018 (65%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2018 Hyundai Elantra?

That depends on the car in front of you, not just the model year. The 2018 Hyundai Elantra has an elevated engine complaint pattern, so treat it as a car that needs proof: service records showing engine work, a cold-start test drive, and an independent pre-purchase inspection focused on the engine. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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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.