The contact owns a 2021 Nissan Altima. The contact stated that while pulling out of a parking lot, the contact shifted into drive(D) and then to reverse(R) to exit the parking lot, and while driving 3 MPH, the brake pedal was depressed, and the vehicle failed to stop as intended. The contact attempted to forcefully depress the brake pedal; however, the vehicle failed to stop. Due to the failure, the vehicle crashed into another vehicle. The dealer was contacted. The manufacturer was not made aware of the failure. The failure mileage was approximately 97,350.