- 2004, 2006–2009 Factory-verified
the 2005 lists do not carry C6F and print C8F with the same wording.
C6F Factory-verified
Also described as GVW rating, 5,150 lbs
Also documented for ChevroletOldsmobile
Documented applications
- 1998–2001 Factory-verified
- 1998–2004 Factory-verified
This page aggregates every documented appearance of C6F in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.