- 2008–2009 Factory-verified
FV4 Factory-verified
Also described as Ratio, transaxle final drive, 3.71
Also documented for CadillacOldsmobilePontiac
Documented applications
- 1998–1999 Factory-verified
This page aggregates every documented appearance of FV4 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.