LPO, utility wall package

Years 2019, 2025–27 Models 5 Factory citations 14

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Also described as LPO, Color-Out PackageLPO, protection packageAT4 preferred packageAT4 Preferred Package

Also documented for Chevrolet

Documented applications

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

2025–2027 Factory-verified

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.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

Pro, Elevation 3VL, AT4, AT4X, Denali Ultimate: not offered; Elevation 3SB, Denali: O (ADI available); includes SF6 VNI S4X SFZ

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.37.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra HD — K2XX (2015–2019)

2019 Factory-verified

LPO all-weather floor liner (RIA) and black molded splash guards (VQK); dealer-installed; 2019 marks: Sierra, SLE, SLT: O

GM factory document — 2019 gmc sierra 2500hd fleet order guide wayback, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

only in: 2500 HD and 3500 HD pickup; includes universal home remote (UG1), rear sliding power window (A48) and roof marker lamps (U01); AT4: O; Pro, SLE, SLT, AT4X, Denali, Denali Ultimate: not offered

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.
GM factory document — 2025 gmc sierra 2500 hd retail and fleet fleet order guide, p.24.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.22.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.23.

Sierra — T1XX (2019–2026)

2025–2026 Factory-verified

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 PDO in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.