2012 Jeep Grand Cherokee brakes problems

On june 24, 2016, between 1:30 pm and 2 pm, I was driving from brentwood ca to vallejo ca on hwy 780 w and after turning a curve on the freeway which sloped down towards curtola parkway, I applied the brakes at about 30 miles per hour after I emerged from the overpass which was at least 5 car lengths before the cars ahead of me which was stopped at a red traffic light. However, the jeep continued to roll even though I pressed on the brakes to the floor board.

Tl* the contact owns a 2012 jeep cherokee. While driving down an incline at 15 MPH, the brakes failed. The vehicle was taken to a dealer where it was diagnosed that the brake booster failed and needed to be replaced. A year prior to the failure, the vehicle was repaired under NHTSA campaign number: 14v154000 (service brakes, service brakes, hydraulic). The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 51,000. Updated 02/18/16 updated 02/22/16.