The contact owns a 2022 Mazda CX-5. The contact stated that while driving approximately 25 mph when another vehicle abruptly stopped causing the contact to need to suddenly stop however, the brake pedal failed. The contact stated that the brake pedal traveled to the floorboard then the emergency braking system began chiming. The vehicle failed to stop causing the contact the crash into the vehicle in front. The air bags did not deploy. There was no police report. There were no injuries reported. The contact had contacted the dealer however the vehicle had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 1,546.