The Century received a facelift for 1989, gaining a new more-rounded roofline, but continuing on the A-body platform.
Black plastic inserts with the Buick trishield emblem replaced the rear quarter windows. The front end received flush headlamps and a rounded grille, and the stand-up hood ornament was now standard. All sedan models were easily distinguished by their distinctive full-width taillights, a somewhat extravagant flourish on a smaller sedan, but one that carried on a Buick tradition of big taillights. An exterior refresh came in 1991. The 2.5 L I4 was replaced with a new 115 hp 2.2 L for 1993. For 1994, the coupe model was dropped, and all models received a standard driver’s side airbag. Also in 1994, the 160 hp 3.3 L Buick V6 was replaced with a 3.1 L V6 with the same power rating, and power on the 2.2 L I4 was up to 120 hp with the introduction of MFI. In 1995, a round speedometer replaced the wide rectangular one, but the car still carried on with the original 1981-style dash.