u/Dizzy-Meaning4856

i own a 2017 acura rdx and after i took it to the acura dealership for the brakes to be replaced it started to make a humming/growling noise in the rear and it has progressed significantly and it’s almost unbearable to drive more than 10 mins without getting a headache from the noise. does anyone know what could be making the noise cause the dealership tried to say it was the timing chain but it’s coming from the back. the person who “looked” at the car when i asked them about it completely disregarded what i asked and said it was nothing they could’ve done.