Brake Drum Wheel Cylinder problems of the 2005 Toyota Matrix

Tl- the contact owns a 2005 Toyota Matrix. The contact stated that while operating the vehicle the airbag sensor light had illuminated. The vehicle was taken to the dealer who diagnosed that the air bag sensor was faulty. The vehicle was not repaired. The contact also indicated that while driving approximately 55 mph and pressing the brake pedal the brakes malfunctioned causing the vehicle to drive into an intersection. The vehicle was taken to a dealer who was unable to duplicate the problem. The dealer replaced the master brake cylinder but the failures continued to occur. The recall notice for NHTSA campaign number 15v285000 (air bag system) was received in August 2015. After contacting the dealer on multiple occasions the contact was informed that the parts needed to repair the vehicle were still not available and no estimated time for receiving the parts could be given. The failure mileage was 100,000. Jft.