- 2008–2009 Factory-verified
U2J Factory-verified
Also described as Digital audio system, S-band not installed
Also documented for CadillacChevroletGMCHummerPontiacSaturn
Documented applications
- 2008–2009 Factory-verified
- 2006–2009 Factory-verified
This page aggregates every documented appearance of U2J in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.