2013 Tahoe LTZ what makes it SSV.

[CrashTestDummy]

Just curious what qualifies a Tahoe as SSV? Is mine?
Also any info on brake size and differences between LTZ-SSV-PPV and being able to upgrade to the PPV brakes would be appreciated.

The one in the picture you post would have a SEO option of Z56, if it were a police vehicle. Not sure what the 4X4 SEO package would be, perhaps still Z56. This would be on the SPID label, which, on that era vehicles, I think was on the glove box door.

For a NNBS model, you'd look for the PPV SEO code, or, I think for the 4X4, SSV SEO code. I'm not 100% sure where the SPID label is on a NNBS.