LPO, front off-road auxiliary lights

Years 2023–27 Models 5 Factory citations 13

Also described as LPO, auxiliary off-road lightsLPO, auxiliary off-road lights, front, dealer-installedLPO, A-pillar off-road lights

Also documented for Chevrolet

Documented applications

Canyon — Third generation (VSS-T) (2023–2027)

2023–2027 Factory-verified

GM factory document — 2023 gmc 23canyon electrical body builder 2023march13, p.12.
GM factory document — 2024 gmc 24 canyon electrical body builder manual 2023oct04, p.12.
GM factory document — 2025 gmc canyon fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc canyon fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc canyon fleet order guide rpo codes, p.1.

Hummer EV Pickup (2022–2027)

2025–2026 Factory-verified

GM factory document — 2025 gmc hummer ev pickup fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc hummer ev pickup fleet order guide rpo codes, p.1.

Hummer EV SUV — BT1 (2024–2027)

2025–2026 Factory-verified

included only in the Illumination Package (PCI). 2025: O in 1SF, 1SG; 2026: O in 1SF, 1SG; not offered in 3VL.

GM factory document — 2025 gmc hummer ev suv fleet order guide, p.20.
GM factory document — 2026 gmc hummer ev suv fleet order guide, p.24.

Sierra EV — BT1 (2024–2027)

2027 Factory-verified

requires VBP

GM factory document — 2027 gmc sierra ev fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra ev fleet order guide, p.19.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro, Elevation, AT4X, Denali, Denali Ultimate: not offered; AT4: O; dealer-installed

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.83.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

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