Speaker system, four dual front door extended range, dual rear liftgate extended range

Years 1998–04 Models 1 Factory citations 7

Documented applications

Silhouette — U-body second generation (1997–2004)

1998–2004 Factory-verified

GM factory document — 1998 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 1999 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2000 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2001 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2002 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2003 oldsmobile silhouette ext rpo code list, p.1.
GM factory document — 2004 oldsmobile silhouette ext rpo code list, p.1.

This page aggregates every documented appearance of UZ4 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.