Hyundai Kona
Problems & Worst Years

Every top-reported problem on the 2019 through 2021 Hyundai Kona traces back to the same system: the engine losing power or stalling outright, usually without warning. The 2019 launch year is the worst of the three by volume, with 149 complaints and engine stalling during acceleration leading the way at 28 reports, followed by stalling during normal operation (24 reports) and loss of power at various speeds (17 reports) — three separately worded complaints describing what amounts to one recurring failure. A recall, 21V301, is tied to this model year, though it doesn't cover every stalling report filed.

The 2020 model year settles down somewhat, with 79 total complaints, but the theme barely changes: stalling during deceleration (13 reports), excessive oil consumption (12 reports), and check engine lights appearing without warning (10 reports) all point at the same underlying engine durability concern, and a second recall campaign, 20V022, joins 21V301 that year. By 2021, complaint volume ticks back up slightly to 85, and this is the only year in the file with a safety-rated complaint: engine stall paired with loss of power, cited 15 times and flagged as safety-critical, alongside continued reports of knocking noise (12 reports) and oil consumption tied to piston ring failure (10 reports). The 21V301 recall carries into this year as well.

Across all three years, oil consumption and stalling appear together often enough that they likely describe the same mechanical chain — an engine burning oil until it knocks, misfires, or simply cuts out — rather than two unrelated defects. None of the years in this file show a large jump in complaint volume the way some other Hyundai models do, which suggests a persistent but not escalating issue rather than one tied to a single bad production run. A buyer should ask whether the recall work tied to 21V301 has been completed on any specific car, and treat oil level checks as a priority during a pre-purchase inspection. As always, these numbers reflect what owners reported to NHTSA rather than a measured failure rate, and a car's service history will tell you more than its model year alone.