Subaru Sold Cars That Die in Traffic. The Complaint Says It Knew Since 2014.

A class action filed in the U.S. District Court for the District of New Jersey accuses Subaru of building and selling hundreds of thousands of vehicles with an electrical system that cannot fall asleep. When the car is off, something inside keeps drawing power, killing the battery and leaving drivers stranded. The lawsuit says Subaru knew and stayed quiet.

The Non-Financial Ledger

The complaint and the driver complaints attached to it describe people who trusted a car marketed as rugged and reliable, only to be betrayed by it in the moments they needed it most. One owner was stranded in the left lane of the NYC Harlem River Drive in the dark, emergency flashers going dim, dodging “numerous near serious collision misses” for 45 minutes before a tow arrived. A 67-year-old was left in a 100-degree desert, six miles from help, with spotty phone reception. Parents describe frightened children waiting for jumper cables again and again.

The betrayal deepened at the dealership. Owners brought their cars in and were told nothing was wrong, that they simply did not drive enough, that they should keep their key fob 30 feet away, or that they should just buy a portable charger for a brand-new car. Seniors who bought a Subaru specifically because they believed it was safe describe living with “emotional tension every time we have driven the vehicle, dreading it would not start when we needed the vehicle the most.”

The worst outcomes were physical. A 2022 Impreza in Illinois caught fire; the complaint states a fire inspector blamed a defective battery, and family members escaped “just before it was consumed.” Another Forester was reported a total loss from an engine fire that started at the battery wiring. These are not inconveniences. They are the ordinary use of a car turned into a hazard.

Legal Receipts

“Subaru has been aware of the Electrical System Sleep-State Defect since at least 2014, when it began issuing a series of technical service bulletins to its dealerships and service technicians relating to problems associated with the Defect in earlier model years of its vehicles.”

• This establishes the core accusation: knowledge that predates the sale of every single Class Vehicle in the lawsuit.
• It ties Subaru’s own internal paperwork, the TSBs, directly to the defect as documented evidence of awareness.

“When Plaintiffs and Class Members requested warranty service, Subaru representatives informed them that the battery was functioning normally and only needed to be recharged. On the few occasions when Subaru agreed to do more than recharge the battery, it simply replaced the battery without addressing the underlying cause of the parasitic battery drain due to the Defect.”

• This documents the alleged warranty evasion: telling paying customers nothing was wrong.
• It frames battery swaps as a non-fix that guaranteed repeat failure while satisfying the paperwork.

“The low signal will cause the DCM to always be awake and seeking a network connection for up to 14 days until the DCM hibernates. An excessive amount of current drain on the battery will cause it to discharge and may lead to a no-start condition.”

• This is drawn from Subaru’s own TSB 15-308-23, quoted in the complaint, meaning Subaru described the drain mechanism in writing.
• It admits the telematics module (tied to the STARLINK system) can stay awake for up to two weeks, directly causing a dead battery.

“Subaru routinely informed its customers that Class Vehicles are not defective, that the batteries were functioning normally, and that the batteries simply needed to be recharged.”

• This supports the plaintiffs’ argument that the statute of limitations should be paused because Subaru actively concealed the truth.
• It documents a uniform pattern of denial across the dealership network, not isolated bad service.

“Subaru is dishonest in not admitting to and fixing the problem.”

Public Deception: What Buyers Were Told vs. What Was Happening

The complaint alleges Subaru marketed reliability and outdoor durability while sitting on documented evidence that the electrical systems could not manage their own power.

• Buyers viewed TV commercials, online ads, and Monroney window stickers emphasizing quality and dependability; the complaint alleges none disclosed the sleep-state defect.
• Dealers allegedly told owners the “battery was functioning normally” while the complaint says the underlying electrical draw was never addressed.
• Owners were repeatedly told the problem was their own driving habits (“you don’t drive enough”) or a stray dome light, when the complaint attributes failures to the CAN bus and DCM.
• The Wilderness trim was marketed as built for the outdoors, yet a stranded owner in the desert noted these are the exact conditions where a dead battery becomes life-threatening.

The Defect, in Plain Terms

Modern Subarus run on a network of computer modules that talk over a Controller Area Network, or CAN bus. When you park and shut off, those modules are supposed to go to sleep so they stop draining the battery. The complaint says they don’t.

• The complaint alleges one or more modules stay awake or repeatedly “wake up” after shutdown, creating continuous “parasitic drain” or “dark current” that kills the battery.
• In newer models, the Data Communication Module (DCM), tied to Subaru’s STARLINK system, allegedly keeps hunting for a cellular network, including dead 3G networks, and never sleeps.
• Because a battery swap doesn’t stop the drain, the complaint says every replacement battery is doomed to die too.
• When the battery dies, the car becomes fully inoperable and safety features including hazard lights and headlights can go dark, per the complaint.

A Decade of Warnings: Time as a Corporate Weapon

The complaint lays out a chronology where Subaru documented the problem internally for years while the harm continued in the field and, according to the plaintiffs, was never disclosed to buyers.

• June 2014: TSB 07-85-14 for “Parasitic Battery Draw” covers “All Models,” years before any Class Vehicle was sold.
• 2015-2019: A string of TSBs order fuse-box swaps, battery-sensor replacements, and ECM reprogramming for “dead battery” concerns.
• November 2022 / April 2023: TSB 15-308-23 documents the DCM staying awake “for up to 14 days” and draining the battery.
• October 2025: TSB 15-308-23R issued for “All I.C.E. Models” to diagnose parasitic draw causing no-start conditions.
• The complaint notes Subaru issued warranty extensions of up to 8 years for the DCM on earlier models but did not extend the same protection to the Class Vehicles.

Legal Minimalism: The Warranty on Paper, Not in Practice

Subaru provides a 3-year/36,000-mile New Vehicle Limited Warranty covering defects in material and workmanship, plus extended plans up to 10 years. The complaint alleges Subaru honored the letter of these warranties while circumventing their purpose.

• The warranty promises free repair of defects in material and workmanship, but the complaint says dealers declared batteries “functioning normally” to avoid triggering coverage.
• Where Subaru did act, it allegedly replaced the battery with the same type of battery, satisfying a warranty claim without curing the defect the warranty was meant to address.
• The complaint alleges the battery warranty was structured so a battery replaced under the vehicle warranty did not carry the normal separate warranty, shortening protection.
• Plaintiffs argue any attempt to limit the warranty to exclude this defect “would cause the warranty to fail of its essential purpose.”

The Contractor Shield: Two Corporations, One Alter Ego

The complaint names both the Japanese parent, Subaru Corporation, and its U.S. subsidiary, Subaru of America, and preemptively argues they cannot hide behind their corporate structure.

• The complaint alleges a “unity of ownership” such that “each of them is the alter ego of the others,” meaning liability should not be split between them.
• Subaru of America is described as a wholly-owned U.S. sales and marketing subsidiary that distributes, warrants, and services the vehicles.
• The parent and subsidiary allegedly jointly develop the TSBs, warranty booklets, and Monroney stickers, so both controlled what was and was not disclosed.
• Both, per the complaint, exclusively controlled the design and repair of the electrical systems, leaving dealerships with no input on disclosure.

Who Pays? Following the Cost

The complaint alleges Subaru’s refusal to fix the root cause shifted the financial burden of a manufacturing defect directly onto the people who bought the cars.

• Plaintiff Taylor paid $326.96 for a replacement battery on her Forester; the replacement later failed too.
• Plaintiff Selis paid $428.01 out of pocket after his Forester died in an airport waiting lot.
• Plaintiff Cusimano paid $340.18 for a replacement battery after her car began stalling.
• Plaintiff Greissinger paid $434.88 after his Outback shut down in traffic in Houston and blocked the road.
• Beyond batteries, the complaint documents owners forced to buy jump packs, trickle chargers, larger batteries, tows, and rideshares, plus diminished resale value.

Societal Impact Mapping

Public Health & Safety

The complaint frames the defect not as an inconvenience but as a recurring safety hazard documented across hundreds of driver reports.

• Owners report cars stalling in live highway traffic, including one stranded in the left lane of a high-speed NYC highway for 45 minutes.
• The complaint alleges loss of battery power disables hazard lights and headlights, making a disabled car harder to see and more likely to be struck.
• Multiple complaints describe the auto stop/start feature failing to restart the engine at intersections and railroad crossings.
• The complaint warns of children and pets locked inside vehicles that cannot be opened without battery power, with one owner describing being trapped as the interior baked in 80-degree heat.
• Two complaints describe vehicle fires originating at the battery, one declared a total loss with occupants escaping just in time.

Economic Inequality

The complaint documents how the cost of a defect Subaru allegedly knew about fell hardest on individual owners with limited resources.

• Owners repeatedly paid $300 to $430+ per battery, sometimes multiple times, for a defect the complaint says a swap could never fix.
• The complaint notes it is “difficult for consumers with limited resources” to monitor the forums where the defect was being discussed, while Subaru monitored them easily.
• One owner reported losing a work-study position due to unreliable transportation and repeated dealer trips.
• Class Vehicles suffered a diminution in resale value, a hidden wealth loss baked into every affected car.

The “Cost of a Life” Metric

The Settlement Isn’t Justice: A Pattern of Prior Suits

This is not Subaru’s first battery-drain lawsuit, and the complaint uses that history against it.

• Driver complaints repeatedly reference prior class actions and a settlement covering 2015-2020 models (owners cite Daley v. Subaru and Tomasian v. Subaru).
• The complaint alleges the newer Class Vehicles were left out of those earlier remedies even though owners describe an identical defect.
• Subaru extended DCM warranties up to 8 years for earlier models but, per the complaint, “has not done the same for the Class Vehicles.”
• An earlier settlement that leaves the same defect unfixed in the next generation of cars does not deter the conduct; it lets it continue under new model years.

This Is the System Working as Intended

The documented facts describe a cycle where prior accountability failed to change the underlying product, and the burden stayed with consumers.

• Subaru allegedly issued TSBs about parasitic draw as far back as 2014, meaning the internal knowledge existed before a single Class Vehicle was sold, yet disclosure never followed.
• A prior settlement covering 2015-2020 models did not require a permanent fix, and the complaint alleges the same defect simply reappeared in 2019-2025 vehicles.
• The warranty structure allegedly let Subaru satisfy claims with same-type battery swaps, closing tickets while the root defect persisted.
• Because the defect was concealed at the point of sale, buyers had no way to price it in or avoid it, and the market never penalized the concealment.

What a Legitimate Fix Looks Like

Editorial analysis: the core failure this case exposes is a manufacturer treating a documented, dangerous electrical defect as a warranty-accounting problem rather than a design problem to be fixed and disclosed.

Regulatory Track

• NHTSA should open a formal defect investigation into the sleep-state and DCM parasitic drain across the model years named in the complaint, given the volume of stranding and fire reports already filed.
• Regulators should require Subaru to disclose full warranty-claim and replacement-part data for batteries, which the complaint says Subaru already tracks in real time, to establish the true scope.
• Editorial recommendation drawn from general industry standard: window-sticker disclosure rules should require known, unresolved defect notices at point of sale, not just standardized specs.

Legislative Track

• Strengthen the TREAD Act’s monitoring requirements so that a documented pattern of no-start and stalling complaints triggers a mandatory disclosure or recall determination on a fixed timeline.
• Close the loophole that lets a manufacturer settle a defect class action for older model years while shipping the identical defect in new ones without new remedy obligations.
• Require that “fixes” offered under warranty be verified as addressing root cause, not merely swapping a consumable part that is certain to fail again.

Corporate Governance Track

• Subaru should be required to escalate any defect flagged in multiple TSBs to a board-level safety review rather than leaving it in the warranty department.
• Tie executive and dealership-service incentives to root-cause resolution rates, not to minimizing warranty payouts, which the complaint alleges drove the denials.
• Extend the same DCM warranty protection already given to earlier models to the Class Vehicles, and fund a permanent engineering fix.

What Now?

Direct your energy at the entities named in this complaint: Subaru of America, Inc. (Camden, NJ) and Subaru Corporation (Tokyo), and the regulators who can force a recall.

• Watchlist, NHTSA: File a complaint at the National Highway Traffic Safety Administration if your Subaru dies unexpectedly; the complaint notes NHTSA reports are a key evidence source and legally must be monitored.
• Watchlist, FTC and state AGs: Deceptive-concealment claims fall under consumer protection statutes cited in this suit (NJCFA, California CLRA/UCL, NY GBL, Texas DTPA).
• Document everything: Keep dated receipts for every battery, tow, jump pack, and dealer visit; these out-of-pocket costs are exactly what the class seeks to recover.
• Organize: Connect with other affected owners through the class action counsel and owner message boards so individual small losses become a collective, undeniable record.
• Mutual aid: Share a portable jump pack and a ride network within your community so a neighbor’s dead Subaru does not become a highway emergency.