- 1994 Factory-verified
automatic day/night rearview mirror, rear window defogger with heated outside mirrors, passenger 6 way power seat, remote keyless entry with trunk release and Twilight Sentinel
GM Heritage factory kit — 1994 Chevrolet Impala, p.4.
SSA1 Factory-verified
Documented applications
This page aggregates every documented appearance of SSA1 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.