- 2023 Single-source
new for 2023 (GM Authority); 2023: GM Authority 2023 configurator article
Also described as Sterling Metallic (touch-up WA-130H)
Also documented for BuickCadillacChevrolet
Documented applications
- 2025–2027 Factory-verified
touch-up WA-130H; additional charge
- 2023–2027 Factory-verified
touch-up WA-130H; additional charge; the upfitter lists read Sharkskin Met-1 (130H)
- 2027 Factory-verified
Pro, Elevation, AT4, AT4X, Denali, Denali Ultimate; extra charge; touch-up WA-130H
- 2024–2027 Factory-verified
2024: GM Authority 2024 changes page; touch-up WA-130H
- 2023–2026 Factory-verified
touch-up WA-130H; the upfitter lists name it Sharkskin Metallic
- 2025–2027 Factory-verified
touch-up WA-130H; additional charge
- 2023, 2025–2027 Factory-verified
the body-builder lists read Sharkskin Met-1
- 2023, 2025–2027 Factory-verified
the body-builder lists read Sharkskin Met-1
This page aggregates every documented appearance of GXD in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.