Brake Master Cylinder problems of the 2011 Honda Odyssey

Brake pedal is soft and goes almost to the floor. Have had the master cylinder, brake pads, and calipers replaced at david mcdavid in 2018. Brake pedal remained soft and goes almost to the floor. Had master cylinder replaced again in 2021 at a private facility and brake pedal is still not firm as it should be.

Soft brake pedal goes to the floor. Took to shop brake system had to be reveled. After 2 weeks doing same problem. Master cylinder been checked with no issues.

The 2011 Honda Odyssey brakes failed when applied when the van was placed in reverse. The brake pedal traveled all the way to the floor on application of the brakes and did not return back. As the pedal did not return back was unable to pump the brake to build any hydraulic pressure. The vehicle was brought to a halt using the parking brake. Subsequently the brakes started working again. The dealership on inspection reports a brake master cylinder failure. Honda when contacted directly does not acknowledge any such prior incident reports. However at least two such failures have been reported on the same make, model year by other owners on Honda owner forums. I humbly request that you investigate this issue before any fatalities occur. Honda is unwilling to acknowledge a systemic failure.