Brake Master Cylinder problems of the 2012 Dodge Durango

Was in a school zone. Had no brakes. Was able to pull over. No accident. Dealership found leak between booster and master cylinder. The entire assembly and master cylinder bench had to be replaced.

Pulling car out of driveway heading down the street. Approaching the stop sign attempted to brake and the car had complete brake failure; therefore, I waited until the car rolled to a stop. Took the car to the Dodge dealership advising what took place. They inspected the car and said there were no issues with the car or braking system. I was given back my car and I drove home, brakes worked. The next day, the same issue occurred; I pulled out of my driveway heading down the street. Approaching the stop sign attempted to brake and again had complete brake failure. I took the car back to the Dodge dealership, they inspected again and said my master cylinder was defected, along with the brake power booster. They advised me the parts were not being manufactured at this time. I contacted Dodge corporation to inquire on this matter, concerned that this may be a recall or that there is major issue with Dodge Durango braking systems and was told by [xxx] that the part was being made but did not know when it would ship. She also did not have any other information to provide as to other brake issues with Dodge Durango and or recall. I felt a responsibility to report this to you due to the severe safety issue of Dodge Durango's on the road that may encounter complete brake failure. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

What happens: inconsistent and intermittent temporary brake/power failure. Brake pedal temporarily becomes extremely hard and high with almost no pedal movement or no/minimal perceived braking. Sustained maximum pedal pressure (up to 5 seconds) and the brakes magically return. Pedal depressed to the stops, immediately engaging the abs and maximum panic stop. Brake pedal can modulated if experiencing the unexpected panic stop. When it occurs or causes it to occur: morning commuting (highway and freeway driving): immediately apply the brake pedal after 75%-100% acceleration from 0-65 mph on the entrance ramp or from freeway stop light. Transmission must shift at around 60 mph. Freeway driving (immediately applying the brake after any of these conditions) merging and accelerating into traffic, maintaining steady speed up long grades requiring increasing pedal pressure, slowly accelerating from 45-65 mph such that the transmission does not shift down, trailer towing: any long steady pull maintaining 40-60 mph highway speed while in high gear. Cold morning 5-10 degree f. Took 8-10 blocks for the brake pedal to be normal. Started out high/hard/ almost no brakes and slowly got better then worked normally. Dealer results: dealer replaced master cylinder. Dealer can reproduce results. States all test diagnostics show the braking system is working as expected and designed. Symptoms still occurring.