The contact's finance owns a 2016 Chevrolet Malibu. The contact stated that the brake pedal would hardened when depressed without warning. While driving at 15 MPH, the contact crashed into another vehicle due to the hardened brake pedal. The driver side air bag failed to deploy as needed; the air bag slightly popped out of place but did not deploy. A police report was filed; no injuries were reported. The vehicle was towed to an independent mechanic where the mechanic verified that the vacuum pump needed repair. In addition, the contact mentioned that the vehicle would independently downshift while driving at a high rate of speed as the "engine reduce speed" warning message would appear on the instrument panel. The dealer and the manufacturer were both notified the failures; a case was filed with the manufacturer. The vehicle had yet to be repaired. The failure mileage was approximately 70,000.