Toyota Prius Braking efficiency may be affected Recall

Reason for recall: The subject vehicles are equipped with brake pressure accumulators consisting of a metal plunger containing brake fluid encased in a metal housing. The plunger is designed with metal pleated bellows to allow for motion. Nitrogen gas is sealed between the plunger and housing. It is possible that a fatigue crack could develop in the bellows due to vertical vibration of the plunger while driving. If this occurs nitrogen gas could leak into the brake fluid and gradually cause the brake pedal stroke to become longer resulting in decreased hydraulic pressure which could result in increased stopping distance.

Jul 2, 2013

Recall the vehicles that are likely to be affected to first check which type of brake booster is fitted and if the at risk type is fitted; replace the brake booster assembly with an improved one.

This issue affects Prius, this particular recall is for the Prius.