2026 HYUNDAI IONIQ 9 Complaints

When my Ioniq 9 was in reverse, the brake did not work. The car kept rolling and I had to turn it off to stop the car.

Occasionally while driving my IONIQ 9 in sunny conditions with glasses on while utilizing Lane Keep Assist and the Adaptive Cruise Control system the car flashes a Warning about keeping your attention on the road, and then continues on beeping and chiming before ultimately completely stopping in the middle of the road unless you disengage the Lane Keeping Assist and Adaptive Cruise Control. I believe the sensors on top of the Steering Wheel aren’t calibrated that great for people who wear glasses, as this issue does not occur when I take my glasses off. I am not in any way obstructing the sensors, and in all cases when this has occurred, my attention is on driving and the fact that the vehicle begins to decelerate into a complete stop while in the middle of traffic is terrifying. This has happened to me about 3 times now since getting the car and all 3 times it was while I was wearing my regular glasses. When I have my sunglasses on I haven’t experienced the issue.

My ICCU failed, which caused a fuse to blow and some electrical wiring in the car to melt. This caused the car to completely deplete the 12V battery, which left the car completely inoperable. The vehicle was towed to a Hyundai dealership, where they ordered the relevant parts and changed them under warranty. I was without the car for roughly two weeks.