- 1987 Factory-verified
only in: V10/V20
GM Heritage factory kit — 1987 Chevrolet Suburban, p.25.
X6W Factory-verified
Also documented for GMC
Documented applications
- 1998 Factory-verified
This page aggregates every documented appearance of X6W in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.