2025 Hyundai Ioniq 6 Complaints

"While driving a 2025 Hyundai Ioniq 6 at approximately 10,000 miles, the vehicle experienced a sudden, catastrophic Integrated Charging Control Unit (ICCU) failure with no advance warning. The vehicle instantly experienced a total electrical shutdown while the car was on the ramp. The failure completely bypassed and disabled standard safety redundancies: the electronic parking brake/emergency brake system failed , and the 12-volt backup battery died instantly, making it impossible to activate the hazard lights. The vehicle became a completely invisible, immovable dead weight on an active roadway, presenting an imminent, extreme threat of crash, injury, or death to myself and surrounding motorists. I was holding my breath and have to call AAA road side emergency assistance, only when an external battery is connected I could move the car in "Turtle Mode" to a safe spot.The manufacturer has replaced the ICCU, but the total failure of critical emergency safety and braking indicators poses...

NHTSA COMPLAINT — SHORT VERSION I am reporting a persistent, unresolved, safety-related steering defect in my 2025 Hyundai Ioniq 6 (leased 10/12/2024). Beginning in September 2025 at approximately 15,412 miles, the vehicle exhibits: (1) uncontrolled steering wheel shifting left and right at highway speeds; (2) hard pulling to the left when accelerating or decelerating; and (3) the vehicle swaying or jerking within its lane without driver input. I described the issue to the dealer as "pretty dangerous to drive" — this language is documented in Repair Order #XXX. Despite 6+ documented repair attempts over 9 service visits from September 2025 through May 2026, the defect remains unresolved. Repairs attempted include: two 4-wheel alignments, road-force balancing, steering angle sensor calibration, front camera calibration, new front view camera installation, and a complete steering gear box (R-MDPS) replacement. The vehicle was out of service for 129 documented days. CRITICAL ADMISSION: De...

Driving car at low rate of speed when ICCU unit blew. The car threw a check Electrical system and then went into limp not traveling over 35 mph. In a mile car gave another warning to pull over and stop driving. car was towed to Hyundai dealer

The contact owns a 2025 Hyundai Ioniq 6. The contact stated that while reversing out of the garage, the vehicle suddenly stalled, with the message "12-Volt System Deactivated" displayed. The vehicle was towed to the local dealer, where it was diagnosed and determined that the computer control module had failed and needed to be replaced. The contact stated that the computer control module failure was caused by using a faulty phone charger inside the vehicle. The computer control module was replaced, and the vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 300.

I was driving at 60mph. I heard a sudden pop that felt like it came from behind me / under the car. While I glanced to see if I ran over something (I did not), the car suddenly felt like it was about to stall. It was slowing down quickly and dramatically. My safety was in danger as I quickly dropped speeds in heavy traffic on a freeway without warning. I was able to maintain control, and I turned my hazards on. I noticed that I was maintaining speed around 35-40 mph (no matter how heavy I hit the accelerator), and I moved to the right lane and continued while wondering if my car would survive all the way home. Luckily I was only about 1 mile from my house at that point, so I proceeded at a low rate of speed and ultimately made it home. It was scary, sudden, and put me and others on the road in danger. A couple of warnings popped up saying "Electrical System issue" and something else that was related to electronics. The vehicle was towed to the dealership that night, and diagnostics...