2015 Hyundai Tucson: Engine failure
Common wear/failure (not a recall)
Symptoms
Owners of the 2015 Tucson report: engine failure. CarComplaints.com lists 9 owner complaints, average mileage 92,000 miles.
NHTSA has 122 owner complaints for the 2015 Tucson in this area. 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 regula…”
- 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 …”
Likely causes
Sources do not establish a single root cause; diagnosis is needed. Owner-reported fixes are listed below.
Fix, in plain English
Most common owner-reported solutions on CarComplaints.com: replace engine (5 reports). Check for open recalls and extended warranty coverage with a dealer before paying out of pocket.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
CarComplaints.com owners report a typical repair cost of about $7,620 (owner-reported average, not a quote).
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .