- 2008–2009 Factory-verified
the 2008 list prints the code KWI; KW1 in GM's other lists and in the 2009 list.
KW1 Factory-verified
Also documented for CadillacChevroletGMC
Documented applications
- 2009 Factory-verified
This page aggregates every documented appearance of KW1 in the Hummer reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.