2017 Hyundai Elantra brakes problems

Tl* the contact owns a 2017 hyundai elantra. While driving 45 MPH, the preceding vehicle abruptly stopped. The contact depressed the brake pedal, but the vehicle failed to immediately stop. As a result, the contact rear ended the preceding vehicle. The driver's side air bag deployed. The contact sustained a whiplash that required medical attentions. The driver of the other vehicle was transported to the hospital by ambulance.

Tl* the contact owns a 2017 hyundai elantra. The contact stated that while the vehicle was being operated at 60 MPH, the brake pedal was depressed and the vehicle brakes pulsated and jerked increasing the distance before a stop. The contact was not sure if a waring indicator illuminated. The vehicle was not taken to be diagnosed or repaired. The contact received notification of NHTSA campaign number: 17v063000 (air bags) however, the part for the recall repair was unavailable.