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History Behind the Lawsuit
A new class action lawsuit has been filed against General Motors (GM), alleging that several of its 2025 model-year vehicles contain defective master brake cylinder assemblies that can lead to a partial or total loss of braking ability.
The lawsuit, Barron, et al. v. General Motors LLC (Case No. 2:25-cv-05696), was filed on October 2, 2025, in the U.S. District Court for the Eastern District of Pennsylvania by plaintiffs Eric Barron and Chelsey Thompson. They claim GM violated state and federal consumer protection laws by selling vehicles that are unsafe to drive and failing to repair the defect under warranty.
According to the complaint, the alleged defect causes the brake pedal to become either stiff and difficult to press or sink to the floor, often accompanied by warning lights and a “Service Brake System” message on the dashboard. Owners say the issue occurs suddenly, sometimes shortly after purchase.
Claims Made by the Plaintiffs
The plaintiffs allege that GM knew about the defect before selling the affected vehicles, citing pre-sale testing data, customer complaints, and dealership reports. Despite this, the company allegedly failed to issue a recall or provide timely repairs.
Vehicles named in the lawsuit include the 2025 Chevrolet Traverse, GMC Acadia, Buick Enclave, Chevrolet Colorado, and GMC Canyon. The plaintiffs claim these vehicles share the same faulty master cylinder design, which can cause abrupt brake failure.
Drivers reportedly attempted temporary fixes such as restarting the vehicle or pumping the brake pedal, but these methods offer no permanent solution.
The lawsuit seeks class certification, monetary damages, reimbursement for repairs, and a jury trial, citing fraudulent concealment, breach of warranty, and violations of state lemon and consumer protection laws.
What GM Owners Should Do Next
Owners of 2025 GM vehicles listed in the lawsuit should document all brake-related issues, including warning lights, service messages, and dealer visits. Keeping repair invoices and communication records could support future claims or reimbursement if the lawsuit expands or leads to a recall.
How GM Owners Can Take Back Control
While this class action lawsuit has been filed, many owners nationwide may be affected by similar issues. These problems often escalate into large-scale legal actions, making it vital for consumers to stay informed and protected.
If you struggle with vehicle troubles and feel cornered against big vehicle brands, remember it is always better to have experts with you. With extensive experience and successful cases at hand, The Lemon Firm is your best bet. With dedicated team members always at your disposal, the package becomes too good to be true. So, if your car is giving you a headache, don’t hesitate to reach out!
Call 833 Lemon Firm and speak with a case analyst today!