A reader asked us what the correct replacement remote keyfob is for a 1995 Buick Century. From 1991 through 1996, Buick Century sedans that were equipped with factory keyless entry used a 3-button remote with FCC ID ABO0104T.
See GM remote with FCC ID ABO0104T at this link.
Beginning with the 1997 model year, Buick Century sedans used a different factory keyless entry remote. The correct replacement keyfob for 1997-2000 is a 4-button remote with FCC ID ABO0204T.
See GM remote with FCC ID ABO0204T at this link.
All Buick Century factory keyless entry remotes for the 1990s are user programmable.