2018 Hyundai Tucson: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 249 owner complaints for the 2018 Hyundai Tucson that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11767171 (filed 09/26/2026): “Engine stalls jurks lose of power engine light blinking excessive oil use…”
- NHTSA complaint ODI #11764062 (filed 09/14/2026): “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 ve…”
- NHTSA complaint ODI #11761793 (filed 09/03/2026): “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 …”
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
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
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Sources
Page last updated .