UP1 (A2 in '78 listing) ● Confirmed

Cadillac · Regular Production Option

AM/FM stereo w/ 8-track & CB

Years 1977 Models 1

Documented applications

DeVille / Calais →

• 1977 (late) ● Confirmed

  Late intro

This page aggregates every documented appearance of UP1 (A2 in '78 listing) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.