2024 Gmc At4 Hd Colors. Onyx black, sterling metallic, summit white, thunderstorm gray, titanium rush metallic, and volcanic red tintcoat. The first ever sierra hd at4x and at4x aev edition is taking the at4 experience to the next level.
The 2024 gmc sierra hd adds six new exterior colors to its palette: The new 2024 gmc sierra hd exterior paint options list now includes (relevant paint codes listed in parentheses):