The contact owns a 2020 Chevrolet Malibu. The contact stated that while driving at 40 MPH, the vehicle decelerated to 15 MPH, and the brake pedal was depressed, but the vehicle failed to stop immediately. The vehicle crashed into a building before coming to a stop. The check engine warning light was illuminated. The air bags did not deploy. The contact shifted the transmission to park (P) and turned off the vehicle. When the contact attempted to restart the vehicle, the brake pedal was extremely firm and unable to depress. The vehicle failed to restart. Several unknown warning lights were illuminated. The contact did not sustain any injuries, and medical attention was not received. There was no police report filed. The vehicle was towed to the dealer, where it was determined that the vacuum brake booster and camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 106,000.