COLOR CODEWA105V/GWX - Subterranean Gray MetallicGMC Touch-Up Paint

The Look

Subterranean Gray is the definition of a utilitarian color that went to finishing school. Since your Sierra or Canyon has likely spent its life working or commuting, this dark, earthy charcoal has probably done a heavy lift hiding road salt and grime. It offers more depth than a standard flat gray, giving a Terrain or Savana a professional appearance that feels premium without being flashy. It is a mature choice that masks the wear and tear of a daily driver better than almost any other shade in the GMC lineup from that era.

Technical Details

This is a true metallic finish, which means the paint is filled with tiny flakes that catch the light to create depth. Because those flakes are suspended in a dark pigment, you run the risk of mottling if you aren't careful. If the paint goes on too heavy, the metallic particles will sink and cluster together, making your repair look like a dark, bruised spot rather than a smooth surface. Thin, controlled layers are the only way to ensure the flakes lay down flat and catch the light evenly across the repair area.

Best Practices

Before you spray or dab GMC Subterranean Gray Metallic (check for code WA105V/GWX), you need to shake it for 60 seconds. You will find that code on the Service Parts Identification sticker, usually located inside your glove box or on the driver-side door jamb. To prevent the metallic flakes from bunching up, keep the container moving and maintain a consistent flow. Test the color on the included card first to see how it reacts to the light in your garage or shade. Allow for plenty of drying time between coats so the metallic particles can set properly before you apply any protection.