- 1998–2001 Factory-verified
YC5 Factory-verified
Also described as Convenience package, decor level 5
Also documented for BuickChevroletGMC
Documented applications
- 2002–2004 Factory-verified
This page aggregates every documented appearance of YC5 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.