- 1985 Factory-verified
Must be ordered; two-tone accent color with Z15
GM Heritage factory kit — 1985 Chevrolet El Camino, p.19.
25M Factory-verified
Also documented for GMC
Documented applications
This page aggregates every documented appearance of 25M in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.