- 1998–2000 Factory-verified
GM prints "(98)"
28U Factory-verified
Also described as Primary color, exterior, Navy Metallic
Also documented for ChevroletGMCHummerOldsmobilePontiac
Documented applications
- 1998 Factory-verified
GM prints "(98)" after the name.
- 1998 Factory-verified
GM prints "(98)" with the name.
- 1998–2000 Factory-verified
GM prints "(98)"
This page aggregates every documented appearance of 28U in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.