I found out about this product

Armordillo

from my dad, who is a service manager at a Chevy dealer. There was a TSB that came out about the Avalanches' plastics, this is the stuff that GM uses to remedy the faded cladding.

I used it on an old Porsche I owned, it turned everything back black very nicely and lasted a long time too. It's kinda spendy, but worth it, I think.

Maybe, if when I can get my hands on a VX and if it needs a treatment, I'll get some before and after pics of this stuff being used.

Just my two pennies.