- 1988 Single-source
1988 from the OSG; the rparts and Halderman lists agree
1SB Factory-verified
Also described as Option group 2Option package 2
Also documented for BuickCadillacChevroletGMCSaturn
Documented applications
- 1988–1992 Single-source
Firebird years: 3rdgenformula option pages 1988–1992
- 2008–2009 Factory-verified
This page aggregates every documented appearance of 1SB in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.