- 2027 Factory-verified
additional charge; not available at the start of production; not available on 3SB or 3SC; touch-up WA-151H
GNW Factory-verified
Also documented for CadillacChevrolet
Documented applications
This page aggregates every documented appearance of GNW in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.