Hyundai IONIQ 6 engine problems
10 complaint narratives mention engine terms.
Key facts
128 owner complaints analyzed
6 distinct recall campaigns
6,112 mi median reported failure mileage
Scope: 2023 to 2025 model years. Data snapshot: . 9 complaints include usable failure mileage.
Engine operation evidence
10 of 128 complaints match this topic (7.8%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 11672992 · 2025-07-12 (July 12, 2025)
ICCU failure. EV car flashed battery issues and could not drive. ICCU and 12 volt battery replaced after 10 days in dealership shop. Manufacturer inspected. Prior to issue electric hatchback closed half way then stalled. I drove to the dealership and asked them to check if there was something wrong. They closed the hatch manually and said the 12 volt battery was fine and the computer said something blocked the closure, I left the dealership and made it less than a mile before battery light went off (within 5 minutes of leaving dealership). Made…
Owner-reported narrative. Look up ODI 11672992 at NHTSA ↗
Owner report 11708306 · 2026-01-02 (January 2, 2026)
The contact owns a 2023 Hyundai Ioniq 6. The contact had received a notice of NHTSA Campaign Number: 24V868000 (Electrical System), and the vehicle was taken to the dealer, where the Integrated Charging Control Unit (ICCU) software update was completed. The contact stated that while driving 50 MPH on the highway, the vehicle stalled. The contact was able to pull over to the shoulder of the road. It was unknown whether a warning light had illuminated. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the Inte…
Owner-reported narrative. 14,000 miles reported. Look up ODI 11708306 at NHTSA ↗
Owner report 11715741 · 2026-02-05 (February 5, 2026)
January 28, 2026 The vehicle has stopped in the middle Of the street with sign «loss of power, check your battery» or something like that and after few attempts to turn it off and on it went to Accessory mode. After 15-20 minutes it completely died. So unsafe with kids in the car during extreme cold temperatures. Free Hyundai road assistance- quoted me 3 hours or so, i had to pay for towing elsewhere. No doubts its iccu, since tow truck driver attempted to jump start and from dead it went to accessory mode and died again almost instantly. I re…
Owner-reported narrative. Look up ODI 11715741 at NHTSA ↗
Owner report 11717789 · 2026-02-13 (February 13, 2026)
A failure of the ICCU resulted in a maximum speed of about 25 mph and eventually a total loss of power.
Owner-reported narrative. Look up ODI 11717789 at NHTSA ↗
Owner report 11736266 · 2026-05-07 (May 7, 2026)
While driving on the highway, there was a complete loss of power and steering. I was able to navigate to the side of the road. The vehicle would not start on multiple occasions, and no warning lights illuminated. The vehicle was taken to the dealer, where it was stated that the issue could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the issue. The approximate failure mileage was 18,000.
Owner-reported narrative. 18,000 miles reported. Look up ODI 11736266 at NHTSA ↗