- 2002–2006 Factory-verified
BS1 Factory-verified
Also described as Insulation package, acoustical
Also documented for BuickChevroletGMCOldsmobilePontiacSaturn
Documented applications
- 2007–2009 Factory-verified
- 2002–2006 Factory-verified
- 2007–2009 Factory-verified
This page aggregates every documented appearance of BS1 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.