2015 Hyundai Tucson: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 122 owner complaints for the 2015 Hyundai Tucson that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11771103 (filed 10/14/2026): “Warning lamp included oil for several months prior. i added oil often. no oil was ever seen under car or leaking in any way. car had been serviced several times during the oil warning lamp warning. nothing was ever found. i continued adding oil on a regular basis. engine completely stopped in t…”
- NHTSA complaint ODI #11765786 (filed 09/21/2026): “Engine and recall notification malfunction: my 2015 hundai tuscon exerperienced a catastrophic engine failure/seizure while driving. hyundai is denying an engine replacement under their extended warranty under the ksds software update (campaign 966) because the software update wasn't completed. ho…”
- NHTSA complaint ODI #11755592 (filed 08/08/2026): “We have a 2015 hyundai tucson that we bought brand new. it has 80k miles on it. the car started using oil about three years ago. the dealer recommended replacement of the catalytic converter, which we did. the car continued to use oil, and the dealership had us replace the catalytic converter two mo…”
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 .