- 1986 Factory-verified
Sprint ER page and the option index
GM Heritage factory kit — 1986 Chevrolet Sprint, p.8.GM Heritage factory kit — 1986 Chevrolet Sprint, p.12.
UP4 Factory-verified
Documented applications
This page aggregates every documented appearance of UP4 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.