Brake pad and rotor question
I currently have 35,550 miles on my Malibu. I took it in to the dealer today for a coolant flush service as the DexCool is at the 5 year mark. I have been noticing a metallic grinding noise when turning right, all the time and mentioned to my service advisor that I thought it may be a brake issue, long story short, my advisor came back and said the "front brake backing plate is hitting rotor due to rust build up" but also mentioned it was rusted through (which one is it? lol) he said I would need to replace front pads and rotors. Stupid me didn't look and just took their word on it. My question is, does this sound legitimate? I will definitely be getting a second and third opinion but wanted to consult with you all first.
2014 Malibu Turbo