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Complaints

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Jan 4, 2026 Electrical System

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Jan 4, 2026 Power Train

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Jan 4, 2026 Vehicle Speed Control

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Jan 4, 2026 Electrical System

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Jan 4, 2026 Power Train

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Jan 4, 2026 Vehicle Speed Control

The vehicle was plugged in overnight. To the set 80% limit. When I got up to leave for work and take family out. The vehicle check electrical system warning ⚠️ came on and the then the vehicle would not drive past 41mph. Then in a few minutes dropped down to 28mph and would not go any further. ...

Dec 16, 2025 Power Train

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Dec 16, 2025 Fuel/propulsion System

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Dec 16, 2025 Lane Departure

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Dec 16, 2025 Power Train

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Dec 16, 2025 Fuel/propulsion System

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Dec 16, 2025 Lane Departure

While driving on the freeway utilizing Highway Drive Assist, I suddenly received a warning on the heads up display stating that assisted systems were unavailable, at which point the Adaptive Cruise Control & Lake Keep Assist both deactivated. I pressed the button on the steering wheel to reactive t...

Nov 18, 2025 Service Brakes

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.

Nov 18, 2025 Service Brakes

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.

Sep 24, 2025 Forward Collision Avoidance

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...

Sep 24, 2025 Lane Departure

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...

Sep 24, 2025 Forward Collision Avoidance

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...

Sep 24, 2025 Forward Collision Avoidance

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...

Sep 24, 2025 Lane Departure

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...

Sep 24, 2025 Forward Collision Avoidance

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...

Jun 27, 2025 Electrical System

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...

Jun 27, 2025 Electrical System

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...