Hyundai and Kia Class Action Lawsuit: Details Defective Fuel Systems

A new class action lawsuit has been filed against Hyundai Motor Co., Hyundai Motor America Inc., Kia Motors Corp., and Kia Motors America Inc., alleging that the automakers sold vehicles with defective fuel systems. The lawsuit, initiated by plaintiffs Timothy Masters and Michelle Frank-Crowder on January 9, 2025, in a California federal court, accuses the companies of violating state and federal consumer laws. This case highlights significant concerns about vehicle safety and manufacturing practices.

Overview of the Hyundai and Kia Class Action Lawsuit

The plaintiffs claim that Hyundai and Kia knowingly sold vehicles with fuel systems prone to defects, including issues with the evaporative emissions control system and the Engine Control Module. According to the complaint, these defects prevent gas vapors and air from being properly directed towards the intake manifold. Instead, vapors accumulate in the fuel tank and other parts of the system, causing a range of issues such as:

  • Poor engine performance and misfires.
  • Rough idling and loss of motive power.
  • Difficulty removing the fuel cap and filling the gas tank.
  • Noticeable fuel odors in the vehicle’s interior.
  • Expansion or distortion of the fuel tank, which can lead to structural damage.
  • Increased emissions.

These issues not only inconvenience vehicle owners but also pose significant safety risks, such as sudden loss of power while driving and the potential for accidents.

Serious Safety Hazards Linked to Defective Fuel Systems

The plaintiffs emphasize that the fuel system defect presents serious safety hazards. Drivers may experience sudden power loss, which increases the likelihood of accidents. In extreme cases, the distortion of the fuel tank can cause loud popping noises and damage other parts of the vehicle, such as dislodging the backseat or bending the vehicle’s frame. Additionally, the plaintiffs argue that excessive emissions and fuel odors inside the vehicle could pose health risks to passengers.

Hyundai and Kia’s Alleged Knowledge of the Defect

The lawsuit alleges that Hyundai and Kia were aware of these defects but failed to disclose them to consumers. Despite offering warranties that purportedly covered the fuel system, many owners and lessees reportedly had to pay out of pocket for repairs or alternative transportation, even when their vehicles were still under warranty. This has led to accusations of breach of warranty, fraud, unjust enrichment, and violations of consumer protection laws in California and Illinois.

Which Hyundai and Kia Models Are Affected?

The lawsuit seeks to represent all U.S. consumers who purchased or leased Hyundai or Kia vehicles equipped with a T-GDI 1.6L Gamma II engine. Affected models include:

  • 2020-2024 Hyundai Sonata
  • 2021-2024 Kia K5

If successful, the class action could result in compensation for affected consumers, including coverage for repairs, damages, and legal fees.

Hyundai and Kia’s History of Legal Troubles

This is not the first time Hyundai and Kia have faced legal challenges. In May 2023, the automakers settled a separate class action lawsuit for over $200 million, addressing claims that certain vehicles lacked engine immobilizers, making them vulnerable to theft. Additionally, in November 2024, Hyundai recalled more than 145,000 electric vehicles due to concerns about battery charging issues and potential loss of drive power.

These incidents highlight ongoing concerns about the companies’ quality control and transparency. As the latest lawsuit progresses, it underscores the need for automakers to prioritize consumer safety and address potential defects proactively.

What Hyundai and Kia Owners Should Do Now

Owners of affected Hyundai and Kia vehicles are encouraged to:

  1. Stay Updated: Monitor updates about the lawsuit and any potential recalls or remedies announced by the automakers.
  2. Document Problems: Keep records of any fuel system issues, repair attempts, and related expenses.
  3. Seek Legal Assistance: Consult with legal professionals to determine eligibility for participation in the class action or to explore individual claims.

Conclusion: What This Means for Consumers

The Hyundai and Kia class action lawsuit highlights significant concerns about vehicle safety and corporate accountability. With allegations of defective fuel systems and inadequate consumer protections, this case serves as a reminder for automakers to prioritize transparency and quality in their products. Affected consumers should remain vigilant, seek legal guidance, and advocate for their rights as the lawsuit unfolds.