- 1982–1983 Single-source
Years from the parts catalog 44A (Nemiga mirror, T3): console/floor (DE9/D55) page MA10-003 dates the trim plate "1982 DE9" and "1983 DE9"
DE9 Single-source
Also documented for CadillacChevroletSaturn
Documented applications
This page aggregates every documented appearance of DE9 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.