Buick Enclave brake gasket leak causing brake fluid loss and cylinder failure requiring replacement on Buick Enclave

Submitted by llcraig · Jun 23, 2025
Published by RepairPal

Problem overview

Some Buick Enclave owners report experiencing issues related to brake gasket leaks, which can result in brake fluid loss and decreased brake performance, potentially compromising vehicle safety. If these leaks are not addressed promptly, some owners have noted that they may lead to cylinder failure, causing a loss of brake pressure and resulting in a "mushy" brake pedal or difficulty in braking effectively. In cases where cylinder failure occurs, replacement of the affected components, such as the damaged brake cylinder, may be necessary to restore proper brake system function. It is crucial for owners to address brake gasket leaks quickly to prevent further damage and ensure the safety of the vehicle and its occupants. Regular maintenance and inspections are recommended to detect such issues early, and if a brake gasket leak is suspected, consulting a qualified mechanic is advisable to assess the damage and determine necessary repairs. Ignoring these problems can lead to unsafe driving conditions and potential accidents.

2 people reported this problem
1 comment
Schedule Repair

Buick Enclave vehicles with this problem

1 model year affected
Average mileage: 49,899 miles
(49,899 - 49,899)

Search for another problem

RepairPal Car Genius

Ask our experts about your Buick.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts