Ioniq 6
1 generation · Select a generation to see engines
Which Hyundai Ioniq 6 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Hyundai Ioniq 6 engine is the most reliable?
e-GMP rear motor (Ioniq 5 / EV6) — Maint. Sensitive verdict. The motor itself in the Ioniq 5 and EV6 is not the story. The story is the ICCU, the combined on-board charger and DC-DC converter that keeps the 12V battery alive. When it fails, the 12V goes flat and the car can lose drive power, sometimes after a pop from the unit. Hyundai recall 24V-204 (March 2024) and the expanded 24V-868, and Kia's parallel campaigns (SC302 / 24V-200, later 24V-867), cover a large share of 2022–2024 cars. The expanded Hyundai list includes the Ioniq 6 (2023–2025). The NHTSA ICCU campaign pages read for this entry do not list the Kia EV9 or the EV3. The first software remedy was not enough, so Hyundai in April 2026 extended ICCU warranty cover substantially (reported as 15 years / 180,000 miles in the US). Consumer Reports has tied the fault to a minority of cars, not all of them, and it still moves the buying decision. A car with the latest recall closed and no charging warnings is a very good EV. One with an open campaign, or a history of a flat 12V, is not.
Which Hyundai Ioniq 6 engines should you avoid?
None of the Hyundai Ioniq 6 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Hyundai Ioniq 6 problems?
The most commonly reported problems across all Hyundai Ioniq 6 generations and engines: ICCU failure flattens the 12V and can stop the car, Replacement units have failed again.