OST ✓ Factory-verified

Pontiac · Regular Production Option

Plant code, Oshawa 2, Ontario, Canada

Years 2004–08 Models 1 Factory citations 2

Query this via API →

Also documented for BuickChevrolet

Documented applications

Grand Prix — Eighth generation (2004–2008) →

• 2004–2008 ✓ Factory-verified internal

  No zero form (0ST) exists in GM's lists.

  ⛭ GM factory document — 2004 pontiac grand prix rpo code list, p.1.

  ⛭ GM factory document — 2008 pontiac grand prix rpo code list, p.1.

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