Originally designed and manufactured in Japan, the Justy was introduced to Japan in 1984. United States and United Kingdom versions followed in 1987 and all models received a restyling in 1989.
In the United States, only the Japanese manufactured models were sold and only from 1987 to 1994. The Justy received 4WD in 1988 and all models were equipped with Fuel Injection in 1991. The Subaru Justy was the last carburated car sold in the United Kingdom as well as the United States. A four-door model was also available from 1991 to 1994. A 1995 model was offered in Canada.
After 1994, rebadged models from other manufactureres carried the Justy nameplate:
- In 1994, Subaru introduced to the Europe a rebadged second generation Suzuki Cultus carrying the Justy nameplate. Manufactured in Suzuki's Hungarian plant, these were available in 3 and 5 door models with available four wheel drive.
- In 2004, a rebadged Chevrolet Cruze carried the G3X Justy nameplate in Europe.
- In MY 2008 a rebadged Daihatsu Sirion revived the Justy nameplate.