Horn, high note

Years 2001–02 Models 4 Factory citations 8

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Also documented for Cadillac GMC

Documented applications

Silverado — GMT800 (1999–2007)

2001 Factory-verified

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado, p.57.

Silverado HD — GMT800 (2001–2007)

2001, 2002 Factory-verified

years from Heritage kit pages, not in GM’s service list of that year: 2002 (kit list)

GM factory document — 2001 chevrolet chevy c silverado 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Silverado HD, p.63.
GM Heritage factory kit — 2002 Chevrolet Silverado HD, p.42.

Suburban — GMT800 (2000–2006)

2001 Factory-verified

GM factory document — 2001 chevrolet chevy suburban 2wd rpo code list, p.1.
GM Heritage factory kit — 2001 Chevrolet Suburban, p.52.

Tahoe — GMT800 (2000–2006)

2001 Factory-verified

GM factory document — 2001 chevrolet tahoe 2wd rpo code list, p.1.

This page aggregates every documented appearance of UB8 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.