ULV Factory-verified

GMC · Regular Production Option

AT4X AEV Edition package

Years 2024–27 Models 2 Factory citations 8

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Also described as AT4X AEV Edition

Also documented for Chevrolet

Documented applications

Sierra HD — T1XX (2020–2027)

2024–2027 Factory-verified

only in: 2500 HD; AT4X; includes AEV stamped steel front and rear bumpers (VHU, VQH), gloss black door handles and black tailgate accent, AEV 18 inch wheels (RBJ), spare wheel (QNB), stamped steel skid plates (PZG, PZZ, PZN), AEV embroidered headrests and AEV floor liners (AAO); removes red recovery hooks (UGA) and front license plate kit (VK3); 2024: GM Authority 2024 changes page; AT4X: O; Pro, SLE, SLT, AT4, 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.25.
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

the 2023–2025 upfitter lists print this code as a Chevrolet Bison sales package and are not cited for it

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