Paint, special exterior color

Years 1998–00, 2004, 2014–20, 2022–27 Models 13 Factory citations 47

Also described as Primary exterior color, SpecialPrimary color, exterior, specialPrimary exterior color, specialPaint, primary exterior, special

Also documented for Buick Cadillac Chevrolet Oldsmobile Pontiac

Documented applications

Jimmy — second generation (1995–2001)

1998–2000 Factory-verified

GM factory document — 1998 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 1999 gmc jimmy 4wd rpo code list, p.1.
GM factory document — 2000 gmc jimmy 4wd rpo code list, p.1.

Safari — Second generation (1995–2005)

2000 Factory-verified

2000 list prints the letter O (O1U) with the marker (91); GM's other lists print 01U, the zero form.

GM factory document — 2000 gmc safari 2wd rpo code list, p.1.

Savana — GMT600 (1996–2002)

1998–2000 Factory-verified

GM factory document — 1998 gmc savana rpo code list, p.1.
GM factory document — 1999 gmc savana rpo code list, p.1.
GM factory document — 2000 gmc savana rpo code list, p.1.

Savana — GMT610 (2003–2027)

2014–2018, 2022–2027 Factory-verified

GM prints (02) or (96) after the name in the Upfitter lists; O: Cargo 1WT, Cutaway 1WT, Cutaway 2WT (2025–2026), Passenger 1LS, Passenger 1LT

GM factory document — 2014 chevrolet gh van elec bbm si brief, p.5.
GM factory document — 2018 chevrolet 18 express savana bodybuilders sm 2017nov06, p.14.
GM factory document — 2022 chevrolet 22 express savana electrical body builder sm en us 2021oct12, p.12.
GM factory document — 2025 chevrolet my25 express savana electrical bbm, p.10.
GM factory document — 2025 gmc savana cargo fleet order guide, p.38.
GM factory document — 2025 gmc savana cutaway fleet order guide, p.47.
GM factory document — 2025 gmc savana passenger fleet order guide, p.30.
GM factory document — 2026 chevrolet my26 express savana electrical bbm, p.10.
GM factory document — 2026 gmc savana cargo fleet order guide, p.40.
GM factory document — 2026 gmc savana cutaway fleet order guide, p.51.
GM factory document — 2026 gmc savana passenger fleet order guide, p.32.
GM factory document — 2027 gmc savana cargo fleet order guide, p.37.
GM factory document — 2027 gmc savana cutaway fleet order guide, p.27.
GM factory document — 2027 gmc savana passenger fleet order guide, p.30.

Sierra 1500 — Next-Generation (2027)

2027 Factory-verified

all normally body-colored non-sheet-metal parts (front fascias, cab spoiler on Double and Crew Cab, trim door handles) are Black; may need extended lead time; not available on Regular Cab or with 5Y1

GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide, p.106.
GM factory document — 2027 gmc next generation sierra 1500 retail and fleet fleet order guide rpo codes, p.1.

Sierra — GMT400 (1988–2000)

1998–2000 Factory-verified

GM factory document — 1998 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc c pickup 2wd rpo code list, p.1.
GM factory document — 2000 gmc gmc c pickup 2wd rpo code list, p.1.

Sierra — GMT800 (1999–2007)

2004 Factory-verified

GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — GMT800 (2001–2007)

2004 Factory-verified

GM factory document — 2004 gmc gmc c sierra 2wd rpo code list, p.1.

Sierra HD — T1XX (2020–2027)

2025–2027 Factory-verified

Pro, SLE: O; SLT, AT4, 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.108.
GM factory document — 2026 gmc sierra 2500 hd retail and fleet fleet order guide, p.104.
GM factory document — 2027 gmc sierra 2500 hd retail and fleet fleet order guide, p.98.

Sierra — T1XX (2019–2026)

2019–2020, 2025–2026 Factory-verified

the 2019–2020 lists read "Primary color, exterior, special (02)"

GM factory document — 2019 gmc 19 sierra 1500 body builder feb 20, p.9.
GM factory document — 2020 gmc 20 sierra 1500 electrical body buil 1, p.9.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2025 gmc sierra 1500 retail and fleet fleet order guide, p.171.
GM factory document — 2026 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, p.88.

Sonoma — second generation (1994–2004)

1998–2000 Factory-verified

GM factory document — 1998 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 1999 gmc sonoma pickup 4wd rpo code list, p.1.
GM factory document — 2000 gmc sonoma pickup 4wd rpo code list, p.1.

Suburban — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 gmc gmc suburban 2wd rpo code list, p.1.
GM factory document — 1999 gmc gmc suburban 2wd rpo code list, p.1.

Yukon — GMT400 (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 gmc yukon 2wd rpo code list, p.1.
GM factory document — 1999 gmc yukon 2wd rpo code list, p.1.

This page aggregates every documented appearance of 01U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.