2018 Hyundai Tucson: Power Train complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 101 owner complaints for the 2018 Hyundai Tucson that list the power train component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11765149 (filed 09/17/2026): “There is a definite known problem with the transmissions in all 2018 hyundai tucsons and maybe other model years as well. this is well documented via the internet by the number of articles concerning this ongoing problem! this problem seems to have been unresolved over a pretty long period of time n…”
- NHTSA complaint ODI #11748939 (filed 07/07/2026): “While driving my 2018 hyundai tucson limited 1.6l turbo with the 7-speed ecoshift dual clutch transmission (dct), the vehicle has repeatedly failed to engage and hold gears, resulting in loss of motive power in traffic. diagnostic scanning retrieved codes p074b (unable to engage gear 3), p074b71 (un…”
- NHTSA complaint ODI #11744822 (filed 06/17/2026): “January 9, 2026, driver was on i25, when driver heard a loud thud and the rpms kept rising but the vehicle would not accelerate. was very dangerous and barely avoided a collision with other drivers on the road. barely got it home and shut it off. tried to drive again but would not get out of rever…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Diagnosis needs a scan tool; repair or replacement needs a lift, transmission jack and the manufacturer's fluid fill/relearn procedure. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
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Sources
Page last updated .