Brake Caliper discoloration and noise from the dash when pressing the brake

[Davidloveshishemi]

I have a 2019 Ram Classic with the Hemi. Love the truck but I have two questions, does anyone else have discolored, looks like rust but its like spots werent painted brake calipers. And I noticed this morning that when I press on the brake I can hear a noise from behind the shifter. I know the noise is the lockout releasing but are we suppose to hear it? Just noticed it today.

Any information would be greatly appreciated!

 

[jakearoo]

Haven't looked at my calipers but I hear the noise when I apply the brakes.

 

[Tach_tech]

Hearing the shift interlock is normal. Can you post pictures of the caliper.

 

[Davidloveshishemi]

Here are two photos, thank you for your help.

 

[Davidloveshishemi]

2nd.

 

[Tach_tech]

That looks like it’s just on the caliper mount bracket, not the caliper itself. Are they all like that or just one?

 

[Davidloveshishemi]

Thats what I meant, caliper mount bracket, sorry, I should have specified. Just a couple of them have that.