2017 Hyundai Santa FE Sport power train problems
40 owner complaints filed with NHTSA name the power train on the 2017 Hyundai Santa FE Sport — 11% of all complaints for this model year.
What owners report
“My 2017 Hyundai Santa Fe Sport exhibits a documented mechanical failure under active code P0420 (Catalytic Converter Efficiency Below Threshold). This failure is the direct proximate consequence of a severe, long term manufacturing defect in the Theta II engine block, which has caused excessive oil…”
filed Sep 11, 2026
“Campaign 9C2 was installed on this vehicle and the now the vehicle is a danger to drive. My wife refuses to drive it as it bucks and jerks as well as the gas mileage has decreased from 35 highway to 28 highway. The fuel trims are way off on cold starts and the transmission now searches for the…”
filed Jun 25, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Santa FE Sport years
| Year | Reports | Share |
|---|---|---|
| 2018 Santa FE Sport | 18 | 6% |
| 2016 Santa FE Sport | 3 | 4% |
| 2015 Santa FE Sport | 7 | 9% |
| 2014 Santa FE Sport | 13 | 8% |
| 2013 Santa FE Sport | 11 | 6% |
Other reported problem areas on the 2017 Hyundai Santa FE Sport
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.