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2018 Hyundai Tucson: engine and transmission complaints

VERY HIGH COMPLAINT SIGNAL
80%
305 of 381 relevant owner complaints are about the engine, transmission or fuel system

80% of relevant owner complaints filed with NHTSA on the 2018 Hyundai Tucson 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 98% of the 1,230 model years we track (2010–2023).

Excludes 12 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 78%).

NHTSA data checked September 13, 2026
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Drivetrain complaints
305
engine, transmission, fuel
Total complaints
393
this model year
Fires reported
9
owner-reported
Recall campaigns
1
13 crashes · 10 injuries

Complaints by component

ENGINE241 · 61%
POWER TRAIN100 · 25%
UNKNOWN OR OTHER43 · 11%
SERVICE BRAKES41 · 10%
ELECTRICAL SYSTEM27 · 7%
FUEL/PROPULSION SYSTEM22 · 6%

The years either side

2010
58%
29 of 58
2011
52%
64 of 124
2012
74%
184 of 255
2013
67%
172 of 266
2014
61%
121 of 202
2015
58%
128 of 226
2016
54%
860 of 1,617
2017
79%
840 of 1,084
2018
80%
305 of 393
2019
58%
214 of 378
2020
47%
77 of 176
2021
63%
47 of 78
2022
65%
234 of 381
2023
35%
44 of 132

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

Cleaner alternatives

Other compact SUVs with no elevated signal in 2018

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

ENGINE02/15/20231 INJURED
My wife was driving home. She had taken the highway home when she had suddenly lost power with no warning or indication from the cars dashboard there was no warning lamps or messages explaining why the car lost power and that the car would not turn back on. The vehicle was towed to an independent mechanic where it was …
ELECTRICAL SYSTEM,AIR BAGS,ENGINE05/15/2020CRASH1 INJURED
HELLO EVERYONE, 2018 HYUNDAI TUSCON PROBLEM: ENGINE/AIR BAG CAUSE: UNKNOWN * AFTER A COLLISION WITH 2 LARGE DEER ON A MAIN HIGHWAY EARLY MORNING, IMMEDIATELY BROUGHT IT TO A SHOP. THE BODY WORK WAS FINISHED AND I HAD THE CAR BACK, UNFORTUNATELY AFTER THAT MY ENGINE WAS VERY VERY SLUGGISH. IRREGULAR SHIFTING, SLIGHT…
UNKNOWN OR OTHER,ENGINE09/03/2026
I took my Tucson to my local Hyundai dealership on Friday, August 28, 2026. It was there for a standard oil change and tire rotation. When I scheduled the appointment online the system also said there was a recall. I always stay on top of that so I let them take care of that as well. The recall didn’t seem like any…

Three of 305 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 (1)

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
Hyundai Motor America (Hyundai) recalled certain 2019-2021 Tucson vehicles on September 4, 2020. On December 30, 2020, Hyundai expanded the recall population, and added …

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

Before you buy a 2018 Hyundai Tucson

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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.