W55 ✓ Factory-verified

Pontiac · Regular Production Option

Entertainment system, option E

Years 1998–02 Models 1 Factory citations 2

Query this via API →

Also documented for Chevrolet

Documented applications

Firebird — Fourth generation (1993–2002) →

• 1998–2002 ✓ Factory-verified

  1999–2000 lists add "Monsoon"

  ⛭ GM factory document — 1998 pontiac firebird rpo code list, p.1.

  ⛭ GM factory document — 2002 pontiac firebird rpo code list, p.1.

This page aggregates every documented appearance of W55 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.