The defect
Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Elantra, 2019-2021 Kona and Veloster vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which could result in engine damage.
The risk
A damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of a fire.
The remedy
Dealers will inspect and, if necessary, replace the engine, free of charge. In addition, Hyundai will deploy Piston Ring Noise Sensing System (PNSS) software. Owner notification letters were mailed August 24, 2021. Owners may contact Hyundai customer service at 1-855-371-9460.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Hyundai Elantra | 2019, 2020 |
| Hyundai Kona | 2019, 2020, 2021 |
| Hyundai Veloster | 2019, 2020, 2021 |
Components: ENGINE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Hyundai Elantra | 2019 | 252 | 1 |
| Hyundai Elantra | 2020 | 254 | 3 |
| Hyundai Kona | 2019 | 196 | 1 |
| Hyundai Kona | 2020 | 161 | 2 |
| Hyundai Kona | 2021 | 120 | 1 |
| Hyundai Veloster | 2019 | 42 | 2 |
| Hyundai Veloster | 2020 | 25 | 1 |
| Hyundai Veloster | 2021 | 11 | 1 |
Other engine recalls in 2021
20 of the 988 recall campaigns reported to NHTSA in 2021 concerned the engine; Hyundai Motor America filed 205 campaigns in all.
| 21V844000 29 Oct 2021 | Kia Motors America |
| 21V806000 15 Oct 2021 | Yamaha Motor Corporation, USA |
| 21V727000 17 Sept 2021 | Hyundai Motor America |
| 21V609000 4 Aug 2021 | PACCAR Incorporated |
| 21V598000 2 Aug 2021 | BMW of North America, LLC |
| 21V502000 1 Jul 2021 | Aprilia USA, Inc. |
| 21V341000 12 May 2021 | Porsche Cars North America, Inc. |
| 21V336000 12 May 2021 | Lamborghini (Automobili Lamborghini) |
NHTSA recalls (public domain) · all recalls of 2021