HD Adapt + LC Pink or B&S Orange + Rupes 21.
Finishes/ Cuts excellent on GM Black with little to zero micro-marring.
And I've used that combo on a 2015 GMC Yukon Denail, 2013 Chevy Camaro ZL1, and a 2012 Chevy Silverado 2500... all GM Black.
However, with Suburban you are going to have 15+...