WE4 ✓ Factory-verified

Pontiac · Regular Production Option

Door, dynamic, side impact

Years 2003–04 Models 1 Factory citations 2

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Also documented for BuickChevrolet

Documented applications

Sunfire — J-body (1995–2005) →

• 2003–2004 ✓ Factory-verified
  ⛭ GM factory document — 2003 pontiac sunfire rpo code list, p.1.

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

This page aggregates every documented appearance of WE4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.