Wiring provisions, camper and fifth-wheel trailer

Years 1999–09, 2016–19, 2023, 2025–27 Models 7 Factory citations 31

Also described as Wiring provisions, camper and fifth wheel trailerPower and signal distribution, power outletsWiring provisions, camper and 5th wheel trailerWiring provisions, camper, fifth wheel and gooseneck trailerTrailering wiring provisions

Also documented for Cadillac GMC

Documented applications

Avalanche — GMT800 (2002–2006)

2002 Factory-verified

GM factory document — 2002 chevrolet avalanche 2wd rpo code list, p.1.
GM Heritage factory kit — 2002 Chevrolet Avalanche, p.56.

Silverado — GMT800 (1999–2007)

1999–2007 Factory-verified

the 2005 light-duty list gives UY2 another wording (see the disputed row)

GM factory document — 1999 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado, p.58.
GM Heritage factory kit — 2005 Chevrolet Silverado 1500, p.179.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.61.
2005 Disputed

only the 2005 light-duty list reads UY2 this way; the same file's heavy-duty list and the 2005 1500 order guide give camper and fifth-wheel trailer wiring

GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2005 Chevrolet Silverado 1500, p.179.

Silverado — GMT900 (2007–2013)

2009 Factory-verified

GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — GMT800 (2001–2007)

2001–2007 Factory-verified

the 2005 list’s light-duty half gives UY2 a second wording (power outlets), which the Silverado GMT800 doc uses; the 2003 and 2005 order guides of this doc read camper and fifth-wheel trailer wiring

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2002 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2003 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2004 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2005 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2006 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM factory document — 2007 chevrolet silverado classic 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado HD, p.64.
GM Heritage factory kit — 2002 Chevrolet Silverado HD, p.43.
GM Heritage factory kit — 2005 Chevrolet Silverado 2500HD, p.195.

Silverado HD — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2008 chevrolet silverado 2wd rpo code list, p.1.
GM factory document — 2009 chevrolet silverado 2wd rpo code list, p.1.

Silverado HD — K2XX (2015–2019)

2016–2019 Factory-verified

2017: GM's 2017 Silverado 2500HD order guide; 2018: GM's 2018 Silverado 2500HD order guide; 2019: GM's 2019 Silverado 2500HD order guide

GM factory document — 2016 chevrolet silverado 2500hd fleet order guide wayback, p.4.
GM factory document — 2017 chevrolet silverado 2500hd order guide revised august 12 2016 copy gm authority, p.27.
GM factory document — 2018 chevrolet silverado 2500hd order guide copy gm authority, p.39.
GM factory document — 2019 chevrolet silverado 2500hd order guide april 20 2018 iteration 2 copy gm authority, p.39.

Silverado HD (T1XX, 2020–2027)

2023, 2025–2027 Factory-verified

only in: 2500 HD, 3500 HD

GM factory document — 2023 chevrolet 23silverado 2500 3500hd electrical body builder sm en us 2022oct12, p.14.
GM factory document — 2025 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2026 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.
GM factory document — 2027 chevrolet silverado 2500 hd retail and fleet fleet order guide rpo codes, p.1.

This page aggregates every documented appearance of UY2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.