- 1999–2001 Factory-verified
1999 list reads automatic transfer case
NP8 Factory-verified
Also described as Transfer case, active, all wheel drive (AWD), 2 speed
Also documented for BuickCadillacChevroletGMC
Documented applications
- 2003–2004 Factory-verified
This page aggregates every documented appearance of NP8 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.