While driving my 2022 Kia Sportage, the brakes suddenly stopped responding. I pressed the brake pedal hard several times and the vehicle did not slow down or stop at all. There was no braking pressure and no warning lights. Because the brakes failed completely, I crashed directly into a guardrail. The airbags deployed on impact. This was not driver error, it was a sudden and total brake system failure. The vehicle is currently in a wreck yard and requires immediate manufacturer inspection.