Trim, interior design

Years 1998–01 Models 2 Factory citations 8

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Also documented for Cadillac Chevrolet Pontiac

Documented applications

Century — W-body (1997–2005)

1998–2001 Factory-verified

GM factory document — 1998 buick century rpo code list, p.1.
GM factory document — 1999 buick century rpo code list, p.1.
GM factory document — 2000 buick century rpo code list, p.1.
GM factory document — 2001 buick century rpo code list, p.1.

Regal — W-body (1997–2004)

1998–2001 Factory-verified

GM factory document — 1998 buick regal rpo code list, p.1.
GM factory document — 1999 buick regal rpo code list, p.1.
GM factory document — 2000 buick regal rpo code list, p.1.
GM factory document — 2001 buick regal rpo code list, p.1.

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