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%).
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 …
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
Ask the seller whether the engine has ever been repaired or replaced, and whether the car has shown stalling, loss of power, rough idle, oil consumption or a check-engine light.
Drive it from a cold start and long enough to warm up. Many engine faults hide once the car is warm.
Get an independent pre-purchase inspection from a mechanic you choose, and tell them to focus on the engine.
1 recall campaign on this model year. Whether a specific car still has one open depends on the VIN; the report checks that.
Ask for service records. A engine already replaced under warranty is a different car from one that was not.
Have the VIN?Paste it and get the full report for that car. First report free, then a 30-day pass covers a whole car search.
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.