Raybestos Brake Master Cylinder: Service brakes — master cylinder

Affects Raybestos Brake Master Cylinder · — — about 1K vehicles.

The hazard

If the piston pops out of the master cylinder housing, a complete loss of braking or unintended brake application can occur, increasing the risk of a crash. Owners may initially notice brake fluid leaking onto the vacuum booster, or a change in brake pedal travel and feel.

What to do

Brake Parts will notify the distributors that sold this product, and provide a replacement part, free of charge. The recall began August 13, 2020. Owners may contact NAPA customer service, at 1-800-272-5372; ACDelco: GM customer service at 1-815-759-7328; or Raybestos customer service at 1-800-323-0354.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational