ORN ✓ Factory-verified

Buick · Regular Production Option

Plant code, Orion, MI, BOC

Years 2003–06 Models 3 Factory citations 5

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Also documented for ChevroletOldsmobilePontiac

Documented applications

LeSabre — H-body (2000–2005) →

• 2003–2005 ✓ Factory-verified internal
  ⛭ GM factory document — 2003 buick lesabre rpo code list, p.1.

  ⛭ GM factory document — 2005 buick lesabre rpo code list, p.1.

Lucerne — G-body (2006–2011) →

• 2006 ✓ Factory-verified internal

  plant code, Orion, Michigan.

  ⛭ GM factory document — 2006 buick lucerne rpo code list, p.1.

Park Avenue — G-body (1997–2005) →

• 2003–2005 ✓ Factory-verified internal

  Wikipedia lists Orion Assembly among the generation's plants.

  ⛭ GM factory document — 2003 buick park avenue rpo code list, p.1.

  ⛭ GM factory document — 2005 buick park avenue rpo code list, p.1.

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