[jpmina176]

I am having brand new CX-3 2022 model, within the span of almost 3 months (delivered 3-Feb-2022) the rust are spreading all throughout the interior.
Assuring that I've never visited a spot with a chemical surface or parking lot and there are no liquids or chemicals in the vehicle.

please see below photo and advise if anyone knows this kind of case. thank u in advance.

 

[ChrisCX3]

That is surface rust. It is normal and OK. But if you want peace of mind, you can spray it with Rust Inhibitor such as FLUID FILM® (FLUID FILM | Powerful Corrosion Protection & Lubrication)