I have the same thing on my trunk, rear bumper and on my rear doors. Definitely going to have this checked out.

 

Dealer spoke to Infiniti.

Infiniti sent them new, updated brake lights, hopefully this will solve the problem.

Dealer also repairing rust/paint on trunk. I should have the car back in a day or so, hopefully everything is fixed to my liking.

 

I cannot tell any difference between the new and old brakelights at all.

And I am not pleased with the touch up job on the rust. Infiniti told the dealer not to repaint the area, merely to touch it up. And it clearly looks like that.

Not pleased. Crafting letter to Infiniti now.

 

I took mine in today to have them look at it and they told me what caused these little rust spots are little pieces of metal from the breaks when it comes in contact with the rotors where it's metal on metal contact. I'm taking it in on Monday and they're going to clay bar it to get rid of the spots.