General Motors Master Brake Cylinder Lawsuit

Barron, et al. v. General Motors LLC

Case Information

  • Case Number: 2:25-cv-05696
  • Case Status: Case in Progress
  • Court: United States District Court, Eastern District of Pennsylvania
  • Filed: October 2, 2025

Lemberg Law represents plaintiffs in a proposed class action lawsuit against General Motors LLC. The lawsuit alleges that certain 2025 GM vehicles contain defective master brake cylinder assemblies that fail suddenly and without warning, resulting in partial or total brake failure.

GM chevy Master Cylinder lawsuit

Complaint

The complaint centers on a defect found in the master brake cylinders of the following 2025 GM vehicle models:

According to the suit, the master brake cylinder fails prematurely, sometimes within weeks of purchase. When it fails, drivers experience brake pedals that become either stiff or sink to the floor. In some cases, total brake failure has occurred while the vehicle was in motion.

Key Allegations Include:

  • Total or Partial Brake Failure: Drivers experience a loss of stopping power with minimal warning.
  • Dashboard Alerts: Warning lights such as “Brake,” “Service Brake System,” and ABS alerts are common symptoms.
  • No Effective Repairs: GM has not issued a recall and many consumers face months-long part delays for replacement.

Claims for Relief

The plaintiffs seek relief under Pennsylvania and New York state laws, as well as various consumer protection statutes. Specific claims include:

  • Fraudulent Concealment
  • Breach of Express Warranty
  • Breach of Implied Warranty of Merchantability
  • Violation of New York General Business Law § 349
  • Violation of Pennsylvania Unfair Trade Practices and Consumer Protection Law
  • Unjust Enrichment

The complaint demands monetary compensation for repair costs, diminished vehicle value, and the safety risks imposed on consumers.

See If You Qualify

If you own or lease a 2025 Chevrolet Traverse, GMC Acadia, Buick Enclave, Chevrolet Colorado, or GMC Canyon and have experienced sudden brake failure or warning lights, you may be eligible to join this class action lawsuit.

📞 Call Lemberg Law at 855-301-2100 for a free consultation.
We don’t get paid unless we win. Don’t wait—contact us today to protect your safety and your rights.

Example Complaints:
Chevrolet Traverse
GMC Acadia

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