- 2003–2009 Factory-verified
ZM6 Factory-verified
Also described as Chassis package, off road suspension
Also documented for ChevroletGMCOldsmobile
Documented applications
- 2006–2009 Factory-verified
This page aggregates every documented appearance of ZM6 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.