Trim, interior design

Years 1998–00 Models 1 Factory citations 3

Also documented for Chevrolet Oldsmobile

Documented applications

Montana — U-body second generation (1997–2005)

1998–2000 Factory-verified

the 1998–1999 lists require Z10 or 9C6; GM prints "(HN)"

GM factory document — 1998 pontiac trans sport ext rpo code list, p.1.
GM factory document — 1999 pontiac montana ext rpo code list, p.1.
GM factory document — 2000 pontiac montana ext rpo code list, p.1.

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