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Car Safety DB

NHTSA Campaign Number

21V301000

ENGINE

Reported to NHTSA: April 28, 2021

Key Takeaways

  • Recall 21V301000 currently maps to 8 tracked vehicle-year pages across 1 make.
  • This page summarizes the official defect description, safety consequence, and remedy text published by NHTSA for this campaign.
  • This is a campaign-level lookup, not a VIN-level clearance result. Use a VIN lookup before assuming your specific vehicle is still open.

Defect Description

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.

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.

What This Recall Page Shows

This page summarizes a single NHTSA recall campaign, including the defect description, safety consequence, and manufacturer's remedy. The affected vehicles listed below are the make/model/year combinations tracked in our database — this is not a VIN-specific result. To check whether your individual vehicle is covered by this recall, enter your 17-digit VIN at nhtsa.gov/recalls. Click any vehicle below to view its full safety profile.

Affected Vehicles (8)

YearMakeModel
2019HyundaiElantra
2020HyundaiElantra
2019HyundaiKona
2020HyundaiKona
2021HyundaiKona
2019HyundaiVeloster
2020HyundaiVeloster
2021HyundaiVeloster

Browse Affected Vehicles

Related Engine Campaigns

These campaigns share the same broad recall component family, so they are useful if you want to compare how similar issue types appeared across other vehicles and time periods.

This recall information is from NHTSA campaign 21V301000. This site is not affiliated with NHTSA. Contact your dealer or call NHTSA's Vehicle Safety Hotline at 1-888-327-4236 for more information.

Data synced from NHTSA on May 4, 2026