Graphite Edition

Years 2019, 2023–27 Models 4 Factory citations 10

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Also described as Black Edition

Also documented for Buick Chevrolet

Documented applications

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

2019 Confirmed

SLT-1 and SLT-2 (GM Authority Black Edition page); 20 inch machined wheels with black accents and black exterior trim; GM Authority's 2022 Elevation Edition color table names WBP as the Elevation Edition in a not-available-with footnote, which does not support that year; 2019: GM Authority 2019 changes page (GM's RPO change list)

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

2025: Elevation: O; AT4, Denali: not offered; 2026–2027: Elevation: O; AT4, Denali, Denali Ultimate: not offered; includes a Black grille, Black badging and exterior accents, V5R, SFZ, RVH and QZR

GM factory document — 2025 gmc acadia fleet order guide, p.17.
GM factory document — 2026 gmc acadia fleet order guide, p.17.
GM factory document — 2027 gmc acadia fleet order guide, p.19.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro: O; AT4, Elevation, AT4X, Denali, Denali Ultimate: not offered; includes B30 BKU B4J RD7 N10 Z60

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.27.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra — T1XX (2019–2026)

2023–2026 Factory-verified

the upfitter lists read "Sales package, appearance" and the 2024–2025 lists print its contents under the code

GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.16.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.18.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.16.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

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