2018 Hyundai Tucson problems and complaints

Owners have filed 395 complaints with NHTSA about the 2018 Hyundai Tucson. The most-reported areas: Engine (242), Power Train (101), Unknown Or Other (43).

Key takeaways

  • 395 owner complaints on file with NHTSA.
  • 13 involve a crash, 9 a fire, 10 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Engine24261%
Power Train10126%
Unknown Or Other4311%
Service Brakes4211%
Electrical System277%
Fuel/Propulsion System226%
Hydraulic205%
Vehicle Speed Control164%
Exterior Lighting123%
Engine And Engine Cooling82%
Structure82%
Air Bags51%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2018 Hyundai Tucson SUV FWD5/55/55/54/5
2018 Hyundai Tucson SUV AWD5/55/55/54/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Power Train - filed 2026-09-17

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 now! It is most defin...

Service Brakes, Hydraulic,engine - filed 2026-09-14

The contact owns a 2018 Hyundai Tucson. The contact stated that while driving approximately 65 MPH, there was a knocking sound coming from the engine compartment, and the vehicle started shaking aggressively. The brake pedal was depressed; however, the vehicle failed to respond as needed, and the vehicle lost power ste...

Unknown Or Other,engine - filed 2026-09-03

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...

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More for the 2018 Hyundai Tucson

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.