One faulty box, 54,000 hybrids: Hyundai's quiet headache in the Elantra

© A. Krivonosov

Hyundai has announced a US recall covering 54,337 Elantra Hybrid sedans from the 2024 through 2026 model years. According to NHTSA, the issue lies with the hybrid power control unit: under heavy electrical load it can overheat.

For the driver, this isn't limited to a warning light on the dashboard. The car may refuse to start or drop into reduced-power mode. «In certain cases, the overheating can lead to localized thermal damage to the unit itself and its internal components,» the agency notes. The wording is dry, but the meaning is plain: there is a potential fire risk.

Only the hybrid Elantra is affected, not the entire model line. The fix is going to be software-only: dealers will reflash the ECU on affected cars free of charge. That's an easier repair than swapping hardware, but owners still shouldn't put off the dealer visit once their notification arrives.

For hybrids, recalls of this kind hit a nerve: buyers pick this kind of car for fuel economy and everyday reliability, and the power electronics are one of the key pieces of the puzzle. Hyundai will count itself lucky this time if the issue really can be closed out with a software update, without a wholesale component swap.