Hyundai, Kia, and Genesis ICCU Class Action Lawsuit, Recalls Failed Are You Still at Risk? Ioniq 5 & EV6 Still Losing Power

Hyundai, Kia, and Genesis face a federal class action lawsuit filed on April 21, 2026, in the U.S. District Court for the District of New Jersey, claiming the automakers knowingly replaced faulty Integrated Charging Control Units (ICCUs) with replacement parts carrying the same inherent defect. The case is Young et al. v. Hyundai Kefico, Inc. No settlement has been reached and no claim form is available yet.

Quick Facts: Hyundai Kia ICCU Class Action Lawsuit 2026

Field	Detail
Lawsuit Filed	April 21, 2026
Case Name	Young et al. v. Hyundai Kefico, Inc.
Defendants	Hyundai Motor Company, Kia Corporation, Genesis Motor, Hyundai Kefico Inc.
Alleged Violation	Product defect — breach of implied warranty, consumer protection law violations
Who Is Affected	U.S. purchasers and lessees of 2022–2025 Hyundai, Kia, and Genesis EVs with 10-speed transmissions
Current Court Stage	Early litigation — recently filed, defendants have not yet responded
Court & Jurisdiction	U.S. District Court for the District of New Jersey
Lead Plaintiffs	Hayes Young (New Jersey), Roy A. Williams (Kentucky)
Next Hearing Date	TBD — not yet scheduled
Official Case Website	TBD — none established yet
Last Updated	May 5, 2026

What Is the Hyundai ICCU Lawsuit About? Young et al. v. Hyundai Kefico, Inc.

Your EV’s ICCU — Integrated Charging Control Unit — is the part that acts like an alternator in a gas-powered car. It converts high-voltage battery power into the 12-volt electricity your accessories run on, keeps the 12-volt battery charged, and enables Vehicle-to-Load (V2L) functions. When it works, you never think about it. When it fails, your car can become completely undrivable without warning.

The ICCU defect arises from inadequate internal power transistors that fail under voltage stress or from thermal stress caused by a faulty cooling system prone to rupture and leakage. When those transistors short-circuit, they blow a fuse that cuts off electrical power to the vehicle’s essential components — including both the 12-volt battery and the high-voltage traction battery pack — which can cause a sudden loss of motive power and create a real risk of harm to vehicle occupants.

According to the complaint, Hyundai first investigated ICCU warranty returns and traced the issue back to the ICCU device itself in October 2022. Despite identifying the problem that early, there were at least two recalls — in March 2024 and November 2024 — and plaintiffs allege Hyundai failed to resolve the issue through software updates and instead replaced or attempted to repair the ICCUs without fixing the underlying defect.

The lawsuit targets not just the automakers but also Hyundai Kefico Inc., the component supplier that manufactured the ICCUs — a signal that plaintiffs are going after the root design problem, not just the dealership repairs. For context on how Hyundai has handled prior defect litigation, see our coverage of the Hyundai and Kia $1.3 billion Theta II engine settlement.

Are You Part of the Hyundai Kia ICCU Class Action?

Here is how to tell if this lawsuit covers your vehicle. The affected models are all built on Hyundai’s E-GMP electric platform.

You may be part of Hyundai Kia ICCU Class Actio if you own or lease any of these vehicles:

• 2022–2024 Hyundai IONIQ 5
• 2023–2025 Hyundai IONIQ 6
• 2022–2024 Kia EV6
• 2023–2025 Genesis GV60
• 2023–2025 Genesis Electrified GV70
• 2023–2024 Genesis Electrified GV80

You may be part of this class if you have experienced any of the following:

• Your 12-volt battery died unexpectedly, even after a warranty replacement
• Your vehicle entered limp-home mode accompanied by a loud bang or pop
• Dashboard warnings appeared, such as: “Stop vehicle, check power supply,” “Check electric vehicle system,” “12-volt battery voltage low, stop safely,” or “Turn power off immediately”
• Your charging plug was damaged while charging at home — some owners report that faulty ICCUs caused damage to household electrical outlets during home charging
• You had the recall work completed in 2024 and the same symptoms returned

You are likely NOT included if:

• Your vehicle is a 2026 model year — newer models like the 2026 Ioniq 9 and the refreshed Kia EV9 use a second-generation ICCU that Hyundai says incorporates corrective hardware changes, and no lawsuit filings have explicitly named 2026 model years yet
• Your vehicle is a gas or hybrid model — this lawsuit covers E-GMP platform EVs only

If your vehicle is on the list above and you have experienced any of these symptoms — even after the recall was performed — this lawsuit was filed for you. A consumer rights lawyer can evaluate whether your specific situation also qualifies for a lemon law claim, which in some states can deliver faster and larger individual recovery than a class action.

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Why the Recall Did Not Fix the Problem

This is the core of the entire lawsuit, and it is worth understanding clearly.

Hyundai and Kia launched two separate recalls. The first, in March 2024, covered approximately 147,100 vehicles. An expanded recall followed in November 2024, bringing the total to roughly 208,000 units. The remedy included a software update to reduce electrical stress and, where necessary, a full ICCU and fuse replacement.

The lawsuit says that was not enough. The central grievance is not that these cars have problems — it is that they allegedly keep having them after the recall was meant to put the matter to rest. Plaintiffs Hayes Young and Roy Williams say their recall service accomplished nothing.

Young’s 2023 IONIQ 5 SEL suffered a dead 12-volt battery in December 2025 — after the recall was already in effect — requiring a warranty replacement. Williams’ leased 2025 Kia EV6 entered limp mode after a loud bang, requiring a tow to the dealer. After battery charging, software updates, and a battery replacement all failed to resolve the issue, the ICCU was finally replaced in March 2026 — months after the first incident.

That is the core problem a defective product lawsuit is designed to address: a company replacing a bad part with another bad part and calling it fixed. For a related ongoing product liability case involving another automaker’s EV platform defect, see our coverage of the Toyota UA80 transmission class action.

What Are Plaintiffs Seeking in This Lawsuit?

The plaintiffs are asking the court for compensation for damages — repair costs, out-of-pocket expenses, and diminished vehicle value — along with injunctive relief requiring a genuine fix, not another software patch.

Young and Williams allege the recall and related repairs failed to fully address the underlying ICCU defect, leaving owners with cars that may still be unsafe and worth less than they otherwise would be. No specific dollar amount has been demanded for the class as a whole at this early stage of litigation.

Neither Hyundai, Kia, nor Genesis has publicly responded to the lawsuit. Typically in such cases, automakers file a motion to dismiss, but it may take several weeks or longer for the next stage of the process to occur.

What Should You Do If Your Hyundai, Kia, or Genesis EV Has ICCU Problems?

You do not need to do anything today to remain part of the class. But what you do right now will matter enormously if this case moves toward a settlement or individual recovery.

Start documenting immediately:

• Save every dealer repair order, even ones that say “no fault found” or list only a software update
• Write down every date your 12-volt battery died, your car entered limp mode, or a warning appeared on your dashboard
• Keep your recall completion paperwork — it is critical evidence that you had the recall performed and the problem continued
• Note if your home charging outlet was damaged — that is a separately alleged harm in the complaint
• Check your VIN at nhtsa.gov to confirm which recalls apply to your vehicle and whether they show as completed

If you want to act now rather than wait:

Many states — particularly New Jersey, where the lead plaintiff is based — have lemon laws that can provide individual relief faster than a class action. A class action lawsuit attorney can evaluate your case for free in most situations. If you have had three or more repair attempts for the same ICCU-related problem, a lemon law claim may be worth exploring in parallel.

Hyundai Kia ICCU Lawsuit Timeline

Milestone	Date
Hyundai traces issue to ICCU device	October 2022
First NHTSA Recall (approx. 147,100 vehicles)	March 2024
Second NHTSA Recall (approx. 208,000 vehicles total)	November 2024
Class Action Filed — D.N.J.	April 21, 2026
Defendants’ Response Due	TBD — not yet filed
Class Certification Motion	TBD — not yet filed
Expected Settlement Timeline	TBD — early litigation; typically 12–24 months after filing

Frequently Asked Questions

Is there a class action lawsuit against Hyundai and Kia for ICCU failures?

Yes. Young et al. v. Hyundai Kefico, Inc. was filed on April 21, 2026, in the U.S. District Court for the District of New Jersey. The case targets Hyundai Motor Company, Kia, Genesis Motor, and component supplier Hyundai Kefico for allegedly selling and then re-installing defective ICCUs across over 200,000 vehicles.

Do I need to do anything right now to be included in the lawsuit?

No action is required to be part of the proposed class. If the court certifies the class, owners and lessees of covered vehicles will typically be included automatically. Your most important step right now is documenting every ICCU-related problem and keeping all dealer paperwork.

When will the Hyundai Kia ICCU class action settle?

There is no settlement yet. The case was filed in late April 2026 and defendants have not responded. Realistically, class certification takes one to two years after filing. A settlement, if reached, would come after that process — no payout timeline exists at this stage.

Can I file my own lawsuit against Hyundai or Kia instead of joining the class action?

Yes. You can pursue an individual lemon law claim or a separate consumer protection action independently of this class action. If your vehicle has had repeated failed repairs for the same ICCU issue, a lemon law claim may deliver faster and larger individual recovery. Consult a product liability attorney who handles auto defect cases — most offer a free legal consultation.

My vehicle already had the recall done. Am I still covered by this lawsuit?

Yes — and that is the entire point of this lawsuit. The lawsuit’s claim that replacement ICCUs are equally defective means even owners who had the recall completed may still be at risk. If your symptoms continued or returned after the recall repair, document that carefully.

How will I know when the Hyundai ICCU lawsuit settles?

When a settlement is reached, the court will require the automakers to notify class members — typically by mail using vehicle registration records. You can also monitor the U.S. District Court for the District of New Jersey’s public docket and check AllAboutLawyer.com for updates as the case develops.

What exactly does the ICCU do, and why does its failure matter?

The ICCU manages the high-voltage battery’s power distribution, converts battery power to 12-volt electricity used by accessories, and enables Vehicle-to-Load (V2L) functions. When it fails, the car can lose propulsion entirely without warning while driving. According to NHTSA, a damaged ICCU can result in a loss of drive power and a crash risk.

Sources & References

• Young et al. v. Hyundai Kefico, Inc. — U.S. District Court for the District of New Jersey (filed April 21, 2026), via CarComplaints.com case report
• NHTSA Recall 24V-868 (Hyundai/Genesis ICCU) — nhtsa.gov
• NHTSA Recall 24V-867 (Kia ICCU) — nhtsa.gov

Prepared by the AllAboutLawyer.com Editorial Team and reviewed for factual accuracy against official NHTSA recall records and available court filing information on May 5, 2026. Last Updated: May 5, 2026

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Legal claims and outcomes depend on specific facts and applicable law. For advice regarding a particular situation, consult a qualified attorney.