- 1998–2001 Factory-verified
1998–1999 lists read package, underbody shield
ZM5 Factory-verified
Also described as Sales package, underbody shield
Also documented for BuickChevroletGMC
Documented applications
- 2002–2004 Factory-verified
This page aggregates every documented appearance of ZM5 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.