Brake Master Cylinder problems of the 2019 Toyota Tacoma

In a matter of minutes, the brakes were fine and then they weren't. There was no notice given. Pushed on the brakes, the pedal went to the floor and did not stop or slow the vehicle down. Pumped the brakes and was able to safely decelerate, but not before almost crashing into the car in front of me. An independent brake shop has indicated the master cylinder is leaking internally. There is a safety recall (18v-888) for production dates of 30 days before this vehicle was produced. Seems to me that this vehicle exhibits the identical behavior in the recall that applies to "not" this one. At least at the time of this writing.

When applying the power brakes at a stop the pedal after a few seconds starts to fade to the floor if released and reapplied they come back up to stop position and will fade again. When backing up and brakes are applied and backing slowly to house garage the brake starts to fade to the floor and has to be reapplied to stop the truck. Yesterday in a shopping mall I had to go around a parked car with another car headed in my direction had to apply brakes and slowly move past the parked car the pedal went so far down my foot hit the accelerator and had to take my foot off the brake pedal and reapply the brakes. Had truck back to Toyota dealer twice and they insist there is no problem with the truck. If you have ever driven an older car where the master cylinder fails that is exactly what it feels like, having that experience once in my driving career of over 60 years/ the truck to me is not a safe vehicle to drive and am concerned for myself and my wifes safety. Called customer service 1-800 number and was told nothing they can do if service dept said no problem with the truck, looking for some solution I see others have posted the same problem on your web site. Thank you .

When driving my 2019 Toyota Tacoma (approx. 6900 miles) I noticed the brakes were not firm after initial application. The pedal then would slowly sink to the floor and braking power was drastically reduced that time. I pumped the brake and achieved better braking result but when constant pressure was applied the braking result diminished very quickly. This continued during all driving conditions. To me it very closely resembled a master brake cylinder seal failure, which I have experienced with vehicles in the past. I checked the brake fluid level and operated the brakes in a stationary position and the same symptoms occurred. The brake fluid in the reservoir was at the correct level and did not vary. I was able to return the vehicle to the dealer for diagnosis and repair. Upon inspection of the vehicle I was notified that the technician believed the brake master cylinder was faulty. The dealer has ordered the replacement part and provided a rental vehicle at no charge. I was informed everything would be a warranty covered repair.