The contact owns a 2013 BMW X1. The contact stated while driving at an undisclosed speed, the brake sensor warning light illuminated. The vehicle was taken to the independent mechanic who diagnosed that no issues were found, however, the brake sensor system was reset. The contact stated the failure reoccurred while driving and coming to a stop. The vehicle was taken back to the independent mechanic who diagnosed that no issues were found. The contact stated while driving at 20-25 MPH, the brake pedal was depressed but failed to respond and went all the way to the floorboard, causing the vehicle to crash into another vehicle. The air bags failed to deploy. The contact did not sustain any injuries. A police report was not filed. The contact was able to drive the vehicle to the independent mechanic with assistance. The dealer was notified of the failure and informed the contact that the vehicle could not be repaired under NHTSA Campaign Number: 14V627000 (SERVICE BRAKES, HYDRAULIC) as her VIN was not included in the recall. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 96,000.