2020 Hyundai Tucson: Car lost power
Common wear/failure (not a recall)
Symptoms
Owners of the 2020 Tucson report: car lost power. CarComplaints.com lists 3 owner complaints, average mileage 62,000 miles.
NHTSA has 74 owner complaints for the 2020 Tucson in this area. Examples:
- NHTSA complaint ODI #11766998 (filed 09/25/2026): “On xxx, while driving at freeway speed in [xxx] with my [xxx] son in the back seat, the engine of my 2020 hyundai tucson (2.4l theta ii gdi, approx. 99,108 miles) seized suddenly and without warning. i lost all motive power in moving traffic and coasted to the…”
- NHTSA complaint ODI #11765249 (filed 09/18/2026): “Engine has defect that causes oil to heat at an unusual levels there for damaging other vehicle components such as the exhaust system parts clogging up and triggering check engine warning lights for emissions.…”
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: dealership doesn't know why.. its not safe to drive (1 reports) dealership has it again (1 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
No sourced cost range: get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .