2024 Gmc At4 Hd Colors. The 2024 gmc sierra hd debuts exterior updates, an interior overhaul, and new powertrain options, along with significant changes to the exterior paint palette, with six new colors offered. Whether you’re looking for something subtle.

We put together a quick overview of the color options for the new gmc sierra 2500 hd so you can. Here are the details of those hues.