General Motors option code

UN3

UN3: a General Motors factory option code reused for more than one part across 1978–1984 and 5 models — see the table for what it named each year, with installs and price where a source states them.

General Motors reused this code for more than one part over the years — read the "as named that year" column for what it meant on each row rather than assuming one meaning throughout.

5 models · 7 model years · 7 sources