Curious about lemon laws? Read our Lemon Law FAQ page
2025 Buick Enclave Brake Problems? Master Cylinder Failure
Class Action
Update: See if you qualify for our GM Master Brake Cylinder Lawsuit.
Lemberg Law is reviewing reports of brake system failures in the 2025 Buick Enclave. Drivers say their brake pedals suddenly sink to the floor, warning messages such as “brake system failure” appear, or the vehicle loses stopping power altogether. Early evidence points to a defect in the brake master cylinder, a critical component of the braking system. This same issue has also been reported in the GMC Acadia, Chevy Traverse and even in pickup models like the 2025 Chevy Colorado & GMC Canyon.
Don’t be stuck with a lemon. You have legal rights to cash, return or buyback.
The law makes Buick pay legal fees.
We've fixed thousands of lemon problems. Message or call 844-928-4443 today.
What’s Going On with the 2025 Enclave Brakes?
Owners have described frightening symptoms:
- Brake pedal drops when pressed—sometimes before starting the vehicle.
- Sudden loss of braking power while driving, even at high speeds.
- Dashboard warning reading “brake system failure.”
- Dealer diagnosis is often inconclusive; some blame sensors or report part shortages.
Real Complaints from Enclave Owners
Owners have shared the following experiences
“Just bought a 2025 Enclave, 10 months ago… driving at 65 mph… my brakes went out, and the dash said ‘brake system failure.’”
“Purchased a 2025 Enclave Avenir with only 3 miles on it. Within a week, the brake pedal went to the floor before starting. Dealer couldn’t replicate it after keeping it a week. It’s happened multiple times.”
“Brakes failed before leaving the dealership. They said it was a sensor.”
What Is GM Saying? TSB N242482170 Explained
In December 2024, General Motors issued Service Update N242482170 for certain 2024 and 2025 vehicles, including the Buick Enclave. The bulletin revealed a defect in the brake master cylinder: a missing internal cartridge seal inside the e-Boost module.
- The risk: Without the seal, hydraulic pressure may fail, leading to inconsistent or total brake loss.
- The fix: Replace the brake master cylinder with a corrected unit.
Brake Problems in Your 2025 Buick Enclave? Contact Lemberg Law.
If your 2025 Buick Enclave has experienced brake failure, you’re not alone. Lemberg Law is actively investigating claims involving defective master cylinders and unsafe braking systems.
Call our Helpline or fill out our contact form today.
Free case evaluation. No fees unless we win.
Sources:
About the Author:
Sergei Lemberg is an attorney focusing on consumer law, class actions related to automotive issues, and personal injury litigation. With nearly two decades of experience, his areas of practice include Lemon Law (vehicle defects), Debt Collection Harassment, TCPA (illegal robocalls and texts), Fair Credit Reporting Act, Overtime claims, Personal Injury cases, and Class Actions. He has consistently been recognized as the nation's "most active consumer attorney." In 2020, Mr. Lemberg represented Noah Duguid before the United States Supreme Court in the landmark case Duguid v. Facebook. He is also the author of "Defanging Debt Collectors," a guide that empowers consumers to fight back against debt collectors and prevail, as well as "Lemon Law 101: The Laws That Lemon Dealers Don't Want You to Know."
See more posts from Sergei Lemberg BE THE FIRST TO COMMENT