Improperly heat-treated piston oil rings
Defect Summary
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.
Safety Consequence
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.
Corrective Action
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.
Similar Recalls
Other recalls from Hyundai Motor America or involving N/A.
FAQ: Recall 21V301000
Your rights, the repair process, and what each field on this page means.
What is recall 21V301000?
NHTSA recall 21V301000 was issued by Hyundai Motor America on April 28, 2021. It addresses: Improperly heat-treated piston oil rings. The recall affects approximately 158,493 vehicles, with the defect involving the N/A component.
How do I get this recall repaired?
Contact any authorized Hyundai Motor America dealer and reference NHTSA recall ID 21V301000 or the manufacturer campaign number 203. Under federal law, the repair is completely free regardless of vehicle age or owner history.
Is my vehicle included in this recall?
The only way to confirm is to look up your 17-character VIN at nhtsa.gov/recalls. NHTSA's tool will tell you if VIN-by-VIN this exact recall applies.
How long do I have to get a recall repair done?
There is no expiration on most federal safety recalls. Even if your vehicle is years old and you bought it used, the manufacturer is required to perform the repair at no cost.
Where does the data on this page come from?
All information on this page is sourced directly from the U.S. Department of Transportation public dataset for NHTSA recalls. Last refreshed: 2026-05-22. For the most current official notice, visit nhtsa.gov/recalls.