2020 Hyundai Kona power train problems
20 owner complaints filed with NHTSA name the power train on the 2020 Hyundai Kona — 13% of all complaints for this model year.
What owners report
“Leaking oil...burns exceptionally fast even with dealership services. Pistons not sealed, melts new spark plugs, misfire on cylinder 3”
filed Aug 27, 2026
“I am filing a safety complaint against Scott Stark’s South Point Hyundai for selling me a vehicle with an active open safety recall, a blown transmission, an A/C failure, and a dry-rotted tire. Before returning the car for service under a promised 1,000-mile warranty, my sister, who has worked for…”
filed Aug 4, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other Kona years
| Year | Reports | Share |
|---|---|---|
| 2025 Kona | 4 | 14% |
| 2024 Kona | 3 | 6% |
| 2023 Kona | 10 | 15% |
| 2022 Kona | 17 | 18% |
| 2021 Kona | 14 | 12% |
| 2019 Kona | 18 | 9% |
| 2018 Kona | 11 | 15% |
Other reported problem areas on the 2020 Hyundai Kona
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.