- 1998–2000 Factory-verified
GM prints "(97)"
56U Factory-verified
Also documented for ChevroletOldsmobilePontiacSaturn
Documented applications
- 1998–2000 Factory-verified
GM prints "(97)"
This page aggregates every documented appearance of 56U in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.