RN2 Factory-verified

GMC · Regular Production Option

LPO, illuminated front GMC emblem

Years 2020, 2022–27 Models 6 Factory citations 25

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Also described as LPO, illuminated front Red GMC emblem

Also documented for Chevrolet

Documented applications

Acadia — Third generation (2024–2027)

2025–2027 Factory-verified

O on all trims

GM factory document — 2025 gmc acadia fleet order guide, p.18.
GM factory document — 2026 gmc acadia fleet order guide, p.18.
GM factory document — 2027 gmc acadia fleet order guide, p.20.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro, Elevation, AT4, Denali, Denali Ultimate: not offered; AT4X: included in the trim group; dealer-installed

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.22.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

only in: 2500 HD and 3500 HD pickup; red; dealer-installed

GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide rpo codes, p.1.

Sierra — T1XX (2019–2026)

2020, 2022–2026 Factory-verified

the upfitter lists read "Accessory, illuminated emblem, exterior, design 1"

GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.13.
GM factory document — 2022 gmc 22 sierra 1500 new electrical body builder sm en us 2022jul20, p.13.
GM factory document — 2023 gmc 23 sierra 1500 electrical body builder sm en us 2022oct12, p.13.
GM factory document — 2024 gmc 24 sierra 1500 sm electrical body builder esid 23dec12, p.15.
GM factory document — 2025 gmc my25 sierra 1500 electrical bbm, p.13.
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.

Yukon — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Elevation, AT4, AT4 Ultimate, Denali: O

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12.
GM factory document — 2025 gmc new yukon denali fleet order guide, p.33.
GM factory document — 2026 gmc yukon denali fleet order guide, p.35.
GM factory document — 2027 gmc yukon fleet order guide, p.31.

Yukon XL — T1XX (2021–2027)

2022–2023, 2025–2027 Factory-verified

2027: Elevation, AT4, AT4 Ultimate, Denali: O

GM factory document — 2022 gmc 22 yukon yukon xl electrical body builder sm u 2021oct13, p.11.
GM factory document — 2023 gmc 23 yukon yukon xl electrical body builder sm en us 092822, p.12.
GM factory document — 2025 gmc new yukon xl denali fleet order guide, p.33.
GM factory document — 2026 gmc yukon xl denali fleet order guide, p.35.
GM factory document — 2027 gmc yukon xl fleet order guide, p.31.

This page aggregates every documented appearance of RN2 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.