NN5 ✓ Factory-verified

Pontiac · Regular Production Option

Emission override, California system, federal offset vehicle

Years 1989–91, 2003–04 Models 2 Factory citations 2

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Also described as Emission system, California override

Also documented for ChevroletSaturn

Documented applications

Firebird — Third generation (1982–1992) →

• 1989–1991 ◑ Single-source internal

  ; Firebird years: 3rdgenformula option pages 1989–1991

Sunfire — J-body (1995–2005) →

• 2003–2004 ✓ Factory-verified internal
  ⛭ 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 NN5 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.