The contact owns a 2019 GMC Acadia. The contact stated that while driving 40 mph, the brake pedal was applied but failed to slow the vehicle down. As a result, the contact rear ended a Chevrolet Tahoe. The air bags failed to deploy. A police report was filed. There was no reported fire. The contact sustained soreness to the body and medical attention was provided. The vehicle was towed to an independent body shop for structural damage. The contact stated that after the vehicle was in her possession the safety restraint system service message was displayed. The fuel gauge went from full to empty in seconds and the engine stalled. The vehicle was taken to the local dealer where the brakes were bleed. The vehicle was repaired. The manufacturer was notified however, no further assistance was provided. The failure mileage was 33, 717.