Written By: Jessica Anvar Stotz
Legally Reviewed By: Jessica Anvar Stotz

Lexus Water Leak Lawsuit

Lexus is currently facing a class action lawsuit over persistent water leak issues affecting multiple models.

The lawsuit alleges that clogged HVAC drain hoses cause water to accumulate inside the vehicle, leading to mold growth, mildew, and even electrical malfunctions.

According to the lawsuit, Lexus was aware of this defect but failed to implement a lasting solution. While a technical service bulletin (TSB) issued over a decade ago recommended using an insect-repellent drain hose tip to prevent blockages, many owners continue to experience leaks.

If you own an affected Lexus model and have dealt with water intrusion problems, you may have legal options. Consulting a Lemon Law or consumer protection attorney can help determine if you qualify to join the lawsuit.

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Which Lexus Vehicles Are Included in the Lawsuit?

The 2025 Lexus Water Leak Lawsuit includes the following Lexus models:

  • 2015-2022 Lexus CT 200h
  • 2015-2022 Lexus ES 350
  • 2015-2022 Lexus ES 300h
  • 2015-2022 Lexus GX 460
  • 2015-2022 Lexus HS 250h
  • 2015-2022 Lexus LFA
  • 2015-2022 Lexus LS 460
  • 2015-2022 Lexus LS 600h L
  • 2015-2022 Lexus RX 350
  • 2015-2022 Lexus RX 450h

If you own one of these models and have experienced water intrusion issues, you may have legal options. Consulting a legal professional can help determine whether you qualify to join the lawsuit.

What Causes the Lexus Water Leak Issue?

Water leaks in Lexus vehicles are often caused by clogged HVAC drain hoses, which can become blocked by debris such as dirt or insect nests.

When this happens, water that should drain outside the vehicle instead backs up and seeps into the cabin, leading to potential damage.

Several factors can contribute to this issue, including:

  • Blocked HVAC Drain Hoses – Accumulated debris can obstruct the drain hoses, causing water to overflow into the interior.
  • Deteriorating Sunroof Seals – Over time, the seals around the sunroof can wear out, allowing moisture to enter the vehicle.
  • Worn Tailgate Seals – In hatchback models, aging rubber seals around the tailgate can break down, creating openings for water intrusion.
  • Clogged Cabin Air Filters – Excess moisture trapped in a dirty pollen filter can lead to condensation buildup, resulting in leaks.
  • Failing Window and Windshield Seals – Degraded seals around windows or the windshield can allow water to seep inside.

If left unaddressed, these leaks can lead to mold growth, unpleasant odors, and even electrical issues, potentially compromising vehicle performance and comfort.

Have There Been Any Related Recalls?

While no official recalls have been issued for the Lexus water leak problem, the issue has been addressed through technical service bulletins (TSBs).

One such bulletin, L-SB-0018-14, was released over a decade ago to tackle HVAC evaporator drain hose clogging caused by insect intrusion.

To reduce the risk of blockages, Lexus recommended installing an insect-repellent drain hose tip (ARINIX® Tip). This hose tip costs about $30.

Despite this guidance, water leaks have continued to affect many Lexus owners, leading to the 2025 class action lawsuit.

If you’re experiencing similar issues, it may be worth discussing the matter with your dealer or a legal professional to explore possible solutions.

Lexus Water Leak Lawsuit tsb

Legal Options for Lexus Consumers

Deciding whether to pursue a Lemon Law claim or join a class action lawsuit is an important decision. Here are some factors to consider when it comes to the Lexus water leak issue:

  • Commonality of Claims: For a class action lawsuit to be effective, the issue must be widespread. In the case of Lexus water leaks, if you’ve experienced similar problems to others (such as water intrusion, mold, or electrical damage), you may have a valid claim. However, if your vehicle’s issue is more severe or unique, pursuing a Lemon Law claim might be more advantageous as it focuses on resolving individual claims.
  • Potential Compensation: While a class action may offer collective compensation, the Lemon Law often provides stronger and more immediate remedies, such as a vehicle buyback or replacement. Class action payouts can be minimal for individual claimants, while a Lemon Law claim may result in a more substantial and tailored resolution.
  • Legal Costs: Class actions typically don’t require upfront legal fees, as attorneys work on a contingency basis. Similarly, Lemon Law attorneys also often work on contingency, meaning you don’t pay unless you win. However, in both cases, it’s important to understand how legal fees are structured and how they may be deducted from any settlement or recovery.
  • Time and Effort: Class action lawsuits can be lengthy, often taking years to resolve. If you need a quicker resolution, Lemon Law might be the better route, as it focuses on individual cases and may offer faster resolutions for those with ongoing issues like water leaks in their Lexus.
  • Opting Out: Joining a class action generally means you give up your right to pursue an individual lawsuit. If you feel that your Lexus water leak issue is severe enough to warrant immediate resolution, filing a Lemon Law claim could preserve your ability to pursue individual legal action.
  • Notification and Participation: Once a class action lawsuit is certified, you’ll receive notice and can choose whether to join. However, with a Lemon Law claim, you have more direct control over your case. It’s important to consider whether you prefer a collective approach or the more personal route of Lemon Law.
  • Legal Advice: Before deciding whether to pursue a class action lawsuit or a Lemon Law claim, it’s crucial to consult with a legal professional. A Lemon Law expert can assess your situation and advise you on the best course of action, especially when dealing with significant defects like the water leak issues affecting Lexus vehicles.

If you’ve experienced water intrusion issues in your Lexus, it might be worth discussing your options with an attorney to determine the most effective legal strategy—whether that’s joining the class action or pursuing a Lemon Law claim for a more direct resolution.

Weighing Your Options: Lemon Law Claim vs. Class Action Lawsuit

If you own a Lexus affected by the 2025 water leak issue and are considering whether to join a class action lawsuit or file a Lemon Law claim, it’s important to understand the benefits and drawbacks of each option. Here’s a breakdown to help guide your decision:

Class Action Lawsuit

Benefits

  • Collective Power: A large group of affected owners can bring more attention to the issue, potentially driving broader industry changes.
  • Uniformity of Recoveries: Class actions ensure that all plaintiffs receive consistent compensation, which might help those with minor issues but limited remedies.
  • Judicial Efficiency: With a class action, a single court decision applies to everyone, saving time and resources.

Drawbacks

  • Less Control: As an individual plaintiff, you have little influence over the litigation and settlement decisions, and your case might not get the personal attention it deserves.
  • Potentially Smaller Payouts: Individual compensation in class actions can be smaller than what might be obtained in an individual Lemon Law claim, especially if your vehicle has significant damage due to the water leak issue.

Lemon Law Claim

Benefits

  • Direct Compensation: If successful, a Lemon Law claim could result in a vehicle replacement or a refund of the purchase price, providing a tailored resolution to your water leak issue.
  • Reimbursement of Costs: In addition to compensation, you could be reimbursed for expenses related to repairs, towing, or rental cars.
  • Legal Fees Covered: In many cases, the manufacturer pays your attorney’s fees and court costs, making this option financially accessible.
  • Faster Resolution: Lemon Law claims are often resolved more quickly than class action lawsuits, meaning you can get a resolution sooner—which is important if you’re dealing with water damage, mold, or electrical issues caused by the leak.

Drawbacks

  • Proof of Defect: You’ll need to provide evidence that the water leak is a significant defect that affects your vehicle’s safety, value, or use, which may require expert testimony or repair records.
  • Statute of Limitations: Depending on the statute of limitations in your state, older vehicle models may not be eligible for compensation under the lemon law.

When to Consider Each Option

  • Class Action Lawsuit: If you’re affected by the water leak issue but prefer a collective approach with shared costs and effort, and you’re not seeking an immediate or larger payout.
  • Lemon Law Claim: If you want a faster and more direct resolution—such as a vehicle replacement or refund—and are willing to manage the claims process for potentially more substantial results.

Ultimately, your decision depends on the severity of the issue and how quickly you want a resolution. Lemon Law claims can often provide more significant and immediate outcomes, especially if your Lexus has suffered major damage due to water leaks.

Consulting with a Lemon Law attorney can help you understand which option will best address your specific situation.

If you’re experiencing severe water damage or electrical problems caused by leaks and your vehicle is on the newer end of the affected model years, a Lemon Law claim may offer the most effective and tailored solution.

For Lexus owners facing ongoing water leak issues, particularly those stemming from clogged HVAC drain hoses or other related defects, filing a Lemon Law claim may provide a more effective and personalized solution.

A Lemon Law claim could lead to compensation, a replacement vehicle, or even a refund of the purchase price, addressing the ongoing water leak problem and the potential damage it may have caused to the interior of the vehicle, such as mold, mildew, and electrical issues.

Past Lemon Law cases involving similar issues have resulted in favorable outcomes for affected owners, offering financial relief and the opportunity for a resolution tailored to the severity of the defect.

If you’re experiencing persistent water leaks that have impacted your vehicle’s value or safety, pursuing a Lemon Law claim could be the most direct and impactful way to resolve the problem.

Affected VehicleAverage Lemon Law Settlement
2020-2022 Lexus CT 200h  $39,380
2020-2022 Lexus ES 350$80,550
2020-2022 Lexus ES 300h  $55,490
2020-2022 Lexus GX 460  $93,080
2020-2022 Lexus HS 250h  $37,590
2020-2022 Lexus LFA  $1,025,670
2020-2022 Lexus LS 460  $118,140
2020-2022 Lexus LS 600h L  $37,590
2020-2022 Lexus RX 350  $64,440
2020-2022 Lexus RX 450h  $66,230

*Please note, the figures presented in the chart are approximations based on past case results and should not be interpreted as a prediction or guarantee. Each case is unique and requires personalized legal guidance.

Have Questions? Get in Touch with the Lemon Law Experts!

If you’re facing ongoing water leak problems in your Lexus vehicle and have not received a permanent solution from the manufacturer or dealership, it may be time to consider your legal options.

A skilled Lemon Law attorney can help you assess the best approach, whether it involves joining a class action lawsuit or filing an individual claim for a vehicle replacement, refund, or other forms of compensation.

At the Lemon Law Experts, we specialize in resolving complex automotive defect cases, including issues like the water leaks affecting Lexus models.

Since 2009, we have been dedicated to helping individuals navigate persistent vehicle problems, ensuring they secure favorable outcomes under both state and federal Lemon Laws.

Our legal team has extensive experience with a wide range of automotive defects, including the HVAC system problems that contribute to water leaks in various Lexus models.

Contact us today to learn how we can help you address your Lexus’ water leak issues and pursue the compensation you deserve.

Citations

1.

“2025 Lexus Water Leak Problem Class Action Lawsuit.” com, 2025, https://www.carcomplaints.com/news/2025/lexus-water-leak-problem-class-action-lawsuit.shtml.

2.

“Lexus Sued for HVAC Hoses That Clog and Leak Into Cabin on Many Models, LFA Included.” CarScoops, 2025, https://www.carscoops.com/2025/01/lexus-sued-for-hvac-hoses-that-clog-and-leak-into-cabin-on-many-models-lfa-included/.

3.

“TSB L-SB-0018-14 Rev: HVAC Evaporator Drain Hose Clogging Due to Insect Intrusion.” com, 2012, https://www.carcomplaints.com/Lexus/IS_350/2012/tsbs/tsb-l-sb-0018-14-rev.shtml.

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