- 1998–2000 Factory-verified
C6U Factory-verified
Also described as GVW rating, 9,000 lb
Also documented for CadillacChevrolet
Documented applications
- 1999–2000 Factory-verified
- 1998–1999 Factory-verified
- 1998–1999 Factory-verified
- 2000 Factory-verified
pickup or dual-rear-wheel code from the lists shared with the pickups; no source shows it on a Yukon
This page aggregates every documented appearance of C6U in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.