BWN Factory-verified

Chevrolet · Regular Production Option

CornerStep, rear bumper

Years 2015–27 Models 6 Factory citations 27

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Also described as Bumper, rear, corner steps

Also documented for GMC

Documented applications

Colorado — Second generation (GMT31XX) (2015–2022)

2015–2019, 2021–2022 Factory-verified

2015: S on all trims; 2017: S on all trims; 2018 from GM's 2018 Colorado order guide (PDF); 2021 from the upfitter list GM files for 2021 and 2022

GM factory document — 2015 chevrolet colorado fleet order guide wayback, p.3.
GM factory document — 2016 chevrolet canyon colorado electrical body builders manual service manual 2016 en us, p.7.
GM factory document — 2017 chevrolet colorado fleet order guide wayback, p.2.
GM factory document — 2019 chevrolet 19 coloradocanyon body builder sm u 2018aug01 1, p.9.
GM factory document — 2022 chevrolet 22 canyon colorado electrical body builder sm en us 2021oct15, p.10.
GM factory document — 2018 chevrolet colorado order guide copy gm authority, p.7.

Colorado — Third generation (2023–2027)

2023–2027 Factory-verified

WT, LT, Trail Boss, Z71: S; ZR2: not offered

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.10.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.11.
GM factory document — 2025 chevrolet colorado fleet order guide, p.37.
GM factory document — 2026 chevrolet colorado fleet order guide, p.42.
GM factory document — 2027 chevrolet colorado fleet order guide, p.42.

Silverado HD — K2XX (2015–2019)

2016–2019 Factory-verified

2017: GM's 2017 Silverado 2500HD order guide; 2018: GM's 2018 Silverado 2500HD order guide; 2019: GM's 2019 Silverado 2500HD order guide

GM factory document — 2016 chevrolet silverado 2500hd fleet order guide wayback, p.3.
GM factory document — 2017 chevrolet silverado 2500hd order guide revised august 12 2016 copy gm authority, p.2.
GM factory document — 2018 chevrolet silverado 2500hd order guide copy gm authority, p.2.
GM factory document — 2019 chevrolet silverado 2500hd order guide april 20 2018 iteration 2 copy gm authority, p.2.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD, 3500 HD

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.10.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Silverado — K2XX (2014–2019)

2015, 2017 Factory-verified

GM factory document — 2015 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2017 chevrolet sierra silverado electrical body builders manual service manual 2017 en us, p.15.

Silverado — T1XX (2019–2026)

2020, 2022–2026 Factory-verified

GM factory document — 2020 chevrolet silverado 1500 fleet order guide wayback, p.1.
GM factory document — 2022 chevrolet 22 silverado 1500 new electrical body builder 042822, p.10.
GM factory document — 2023 chevrolet 23 silverado 1500 electrical body builder sm en us 2022oct24, p.10.
GM factory document — 2024 chevrolet 24 silverado1500 electrical body builder 2023nov29, p.12.
GM factory document — 2025 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 1500 retail and fleet fleet order guide rpo codes, p.1.

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