- 1985 Factory-verified
printed only in the 1985 option index; the ordering page prints 0G1
GM Heritage factory kit — 1985 Chevrolet Sprint, p.8.
DG1 Factory-verified
Documented applications
This page aggregates every documented appearance of DG1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.