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I experienced a safety critical failure in my 2024 Hyundai Ionic 6. While attempting to start the vehicle, the car displayed a red 12 Volt battery warning light, a battery discharge warning, and then refused to enter ready mode. The vehicle would only shift into neutral and was completely undrivable. After sitting for many hours, the vehicle started again, which is consistent with an intermittent ICCU/DC-DC converter dropout. This type of failure is known to cause loss of power and has been documented in NHTSA investigation PE23-011 for other Hyundai EV's. The dealership states they cannot replicate the issue and refuses further diagnostics. Hyundai corporate is deferring entirely to the dealership and will not authorize a loaner or confirm reimbursement, leaving me without transportation. They also stated they cannot commit to any repair unless the failure happens again despite the clear safety implications. This failure mode can cause sudden loss of motive power, which poses a serious risk if it occurs at highway speeds. I am reporting this because the vehicle is unsafe to operate, the failure was severe, and Hyundai is refusing to investigate the root cause unless it reoccurs. I am requesting NHTSA review this incident as part of the ongoing concerns regarding ICCU/DC-DC failures in Hyundai E-GMP vehicles.

HYUNDAI IONIQ 6 2024 ELECTRICAL SYSTEM

I was parking my car a Hyundai Ioniq 6, in an easy parking space when I briefly removed my foot, which was lightly depressed on the gas pedal to hit the brake pedal, the car suddenly accelerated jumped the curb hit another car and hit a tree. The airbag did not deploy I am uninjured. The other car was parked, but was damaged. My car was damaged. It all happened in about two or three seconds and my foot was no longer on the gas pedal. Moreover, the automated systems for parking collision warning, and for automatic stopping did not work. This is what came up when I googled it.  Reports suggest some Hyundai Ioniq models, including potential Ioniq 6 instances, may exhibit unexpected, brief acceleration following a software update meant to address a separate braking recall. This issue is often linked to the "N-shift" mode, where the car may accelerate for 2-3 seconds after the driver lifts their foot.Â   I had that software update

HYUNDAI IONIQ 6 2024 BACK OVER PREVENTION: WARNINGS

What component or system failed or malfunctioned, and is it available for inspection upon request?  The vehicle's cellular connectivity becomes 100% non-functioning until head unit reset. This occurs some days after the car is parked in an area without cell coverage and is then driving into cell coverage area, even directly under cell towers. It appears to give up trying to connect when parked out of range and never attempts to reconnect. until manually  reset.   How was your safety or the safety of others put at risk? Without in-vehicle connectivity, automated crash alerts / location information is unavailable. There's NO indication there's a problem unless certain information screens are visible, and only then, the indication is the lack of any connectivity signal level bars (a missing very small and dim icon)  Has the problem been reproduced or confirmed by a dealer or independent service center? Yes via live phone assistance with Hyundai bluelink support. They suggested the manual reset and observed the re-establishment of connectivity.   Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others?  Not yet. I had the car in for a recall, but the service department said there was nothing they could do until Bluelink provided a fix. There's no fix announced.  Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?  No, just the missing icon if you know where to look on certain screens.

HYUNDAI IONIQ 6 2024 UNKNOWN OR OTHER

Recall 272 - ICCU Ioniq 6 : ICCU fuse and update were required. Dealership ONLY did update. Did not replace fuse. Vehicle was "updated" for Recall 272 on 2/19/2025. Jenkins Hyundai Service Mgr, Savannah, confirmed on 5/18/2026 that this information is correct.  In March 2026, the power seating failed to operate. This is directly related to Recall 272. However, when the vehicle was taken in for service, the dealership failed to diagnose and ONLY repaired pieces related to the seat. The vehicle was taken in on 3/18/2026 and stayed at the dealership for "repair" until 4/4/2026. This should have triggered the dealership to the Recall 272.  On [XXX], within 1 hour of picking up the vehicle, all alarms went off indicating to stop driving the vehicle due to an electronic system error. DTCP1A9096. The vehicle was inoperable and had to be towed to the dealership. This should have triggered the dealership, again, to the Recall 272.  On 4/22/2026, I was informed the vehicle was ready for pickup after replacement of the 12 volt battery. The issue was, again, directly related to the unrepaired recall 272. I was told that the 12 volt was not holding a charge. This should have triggered the dealership service, with the original issue, that it related back to the Recall 272.  On [XXX] the power seats failed to operate. Again, related back to Recall 272. On May 9, 2026, the vehicle was taken to the dealership. On May 11, 2026 the dealership called to say that the fuse blew and was repaired. I refused to pick-up the vehicle siting extreme concerns for my safety given that the underlying issue has yet to be diagnosed. The vehicle remains that the dealership as of 5/20/206 without any further diagnostics completed. A claim with Hyundai USA was submitted on May 8, 2026. Hyundai USA has failed to take any action after multiple attempts to speak with someone. All matters, again, relate back to Recall 272.  The vehicle has now been at dealership for over 40 days since March 18  INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

Vehicle steering wheel was off-center and the vehicle wandered whenever the road changed camber or had rough sections. The vehicle was purchased used from Carvana,. I took it in for 4-wheel alignment and the tech reported that "All adjustment hardware at rear were pretty loose", and stated that it probably left the factory this way as he saw no evidence of prior adjustments. The left rear tire is badly worn on the outside and he recommended immediate replacement, which is awaiting warranty claim processing. Possible safety issues: Rear tire blowout, rear suspension alignment failure with loss of control.

HYUNDAI IONIQ 6 2024 SUSPENSION

2024 Hyundai Ioniq 6 Standard Range RWD — vehicle data sourced from FuelEconomy.gov.

O Hyundai Ioniq 6 Standard Range RWD (2024) é um sedan elétrico de tração traseira com um motor de 111 kW que oferece uma autonomia impressionante de 240 milhas. Com um consumo de energia eficiente, este veículo é uma opção segura e prática para o dia a dia.

	2023	2024
Preço	$41,600	$42,450–$53,650
Cilindrada	—	—
Tipo combustível	Eletricidade	Electricity
Transmissão	Automático (A1)	1-speed automatic
Tipo de carroceria	Carros médios	Sedan

Hyundai Ioniq 6 Standard Range RWD (2024) Especificações