LPO, harness, trailer hitch

Years 2015–18, 2022–27 Models 3 Factory citations 15

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Also described as LPO, Trailer hitch harness

Also documented for Buick GMC

Documented applications

Colorado — Third generation (2023–2027)

2023–2024, 2026 Factory-verified

GM factory document — 2023 chevrolet 23colorado electrical body builder, p.12.
GM factory document — 2024 chevrolet 24colorado electrical body builder manual 18272478 2023oct09, p.13.
GM factory document — 2026 chevrolet colorado electrical body builder manual service manual 2026 en us, p.8.

Express — GMT610 (2003–2027)

2015–2018, 2022–2026 Factory-verified

GM's list calls it an accessory

GM factory document — 2015 chevrolet express savana electrical body builders manual service manual 2015 en us, p.15.
GM factory document — 2016 chevrolet express savana electrical body builders manual service manual 2016 en us, p.10.
GM factory document — 2017 chevrolet express savana electrical body builders manual service manual 2017 en us, p.9.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.16.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.14.
GM factory document — 2023 chevrolet 23 express savana body builder sm en us 2022sep13, p.15.
GM factory document — 2024 chevrolet 24 express savana body builder manual 18553161 2023oct26, p.14.
GM factory document — 2025 chevrolet my25 express savana electrical bbm, p.12.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.12.

Trailblazer — First generation, VSS-F (2021–2027)

2025–2027 Factory-verified

all trims: O; included in, and only available with, PDE

GM factory document — 2025 chevrolet trailblazer fleet order guide, p.28.
GM factory document — 2026 chevrolet trailblazer fleet order guide, p.28.
GM factory document — 2027 chevrolet trailblazer limited fleet order guide, p.30.

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