The contact owns a 2019 Nissan Sentra. The contact was driving under 10 MPH when she depressed the brake pedal however, the vehicle failed to stop. The parking brake was activated however, the vehicle rear-ended the vehicle in front. The air bags did not deploy. The contact stated there was no warning light illuminated. The vehicle was towed to a salvage yard. A police report was filed. The vehicle was still being diagnosed by the Insurance company and had not been repaired. The contact related the failure to NHTSA Campaign Number: 21V135000 (Exterior Lighting). The manufacturer had not been notified. The approximate failure mileage was 58,000.