Storage box, rear underseat

Years 2003, 2005–08 Models 3 Factory citations 12

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Also described as Box, right seat, stowage

Also documented for GMC

Documented applications

Silverado — GMT800 (1999–2007)

2003, 2005–2007 Factory-verified

2005: in GM’s heavy-duty list only, but the 1500/SS order guide lists it; the 2006–2007 lists misprint Rear as Right

GM factory document — 2005 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 — 2003 Chevrolet Silverado SS, p.207.
GM Heritage factory kit — 2005 Chevrolet Silverado 1500, p.197.
GM Heritage factory kit — 2007 Chevrolet Silverado, p.59.

Silverado HD — GMT800 (2001–2007)

2003, 2005–2007 Factory-verified

the 2006–2007 lists misprint Rear as Right; years from Heritage kit pages, not in GM’s service list of that year: 2003 (order guide)

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 — 2003 Chevrolet Silverado 2500, p.208.
GM Heritage factory kit — 2005 Chevrolet Silverado 2500HD, p.185.

Silverado HD — GMT900 (2007–2014)

2007–2008 Factory-verified

the Silverado HD GMT800 doc reads Right as a misprint for Rear (storage box, rear underseat)

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

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