2015 Hyundai Genesis brakes problems

After having repeat brake issues and bringing the brake issues to the attention of the authorized dealer: Steele Hyundai South Loop in Houston, TX. There was no resolution. I visited with the management of Steele Hyundai on March [XXX], 2023. I was in a car accident on March [XXX], 2023 where brake failure occurred. I took the vehicle to Firestone on March [XXX], 2023 for a full inspection. Firestone determined the brakes were not repaired properly.

The contact owns a 2015 Hyundai Genesis. The contact received notification of NHTSA Campaign Number: 21V160000 (Service Brakes, Hydraulic). The contact stated while driving at an undisclosed speed, the vehicle would shake abnormally. The dealer was made aware of the failure but informed the contact that they were short staffed and could not schedule an appointment until a later date. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure.