- 2009 Factory-verified
T89 Factory-verified
Also documented for CadillacChevroletGMCHummerOldsmobilePontiacSaturn
Documented applications
- 2004–2007 Factory-verified
the 2004 lists word it as "export tail and stop lamp"
This page aggregates every documented appearance of T89 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.