- 2003–2009 Factory-verified
AR9 Factory-verified
Also documented for BuickCadillacChevroletGMCOldsmobilePontiacSaturn
Documented applications
- 2006–2009 Factory-verified
the 2006 list reads "Bucket"; the 2007–2009 lists print "Brake", read as bucket;
This page aggregates every documented appearance of AR9 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.