Paint, Carbon Black Metallic

Years 2020 Models 2 Factory citations 1

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Also described as Paint, Hudson Metallic

Also documented for Cadillac

Documented applications

Acadia — Second generation (C1XX) (2017–2023)

2020 Single-source

touch-up WA-621D; no extra cost, not on SL (GM Authority); 2020: GM Authority 2020 first-look color article

Sierra — T1XX (2019–2026)

2020 Factory-verified

touch-up 621D; the name as the 2020 list prints it

GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.11.

This page aggregates every documented appearance of GCI in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.