Package, merchandised, luxury edition

Years 1999–02, 2005–06 Models 2 Factory citations 6

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Also described as Merchandised package, luxury

Also documented for Buick Cadillac Chevrolet GMC Hummer Oldsmobile Saturn

Documented applications

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

1999–2002 Factory-verified

the 1999 list includes AP9, A20, C79, D32, IPC, K34 and UL0 or a radio upgrade; other options in the 1998–1999 lists carry "Chev Req. Y91"; the code may be Venture equipment

GM factory document — 1999 pontiac montana ext rpo code list, p.1.
GM factory document — 2000 pontiac montana ext rpo code list, p.1.
GM factory document — 2001 pontiac montana ext rpo code list, p.1.
GM factory document — 2002 pontiac montana ext rpo code list, p.1.

Montana SV6 — Second generation, U-body (2005–2006)

2005–2006 Factory-verified

the 2006 list reads Luxury Edition; the wording names no brand; may be Terraza/Uplander or Venture equipment

GM factory document — 2005 pontiac montana sv6 rpo code list, p.1.
GM factory document — 2006 pontiac montana sv6 rpo code list, p.1.

This page aggregates every documented appearance of Y91 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.