For the 1991 model year, the Century received another slight facelift featuring a bigger radiator grille and different headlamps.
Also, the interior received new door panels moving the window switches and door lock switches into a more convenient configuration found on more modern cars, where the switch location corresponds with the window location in the car body.
This feature never appeared on its sibling the Oldsmobile Ciera, which retained the inline switch bank mounted flush with the door panel, the rear switch being the drivers door window.
The Century windows switches were not backlit, but lit by a small bulb in the door panel trim above the switch bank.
Other interior changes included new seat covers, and relocating the front outboard seat belts from the A pillar into the door, functioning as "automatic" seat belts so that the belts could be buckled and the door opened and closed while still buckled.
The driver and front passenger could enter and exit the vehicle while the seat belt was still fastened.

For 1993, the 2.5 L I4 was replaced with a new 115 hp 2.2 I4.
For 1994, the slow-selling coupe model was dropped (603 sold for 1993, or 0.5% of overall Century sales), and all models received a standard driver's-side airbag.
Also in 1993, the 160 hp (119 kW) 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 (89 kW) with the introduction of MFI.
Midway through the 1994 model year, a round speedometer replaced the wide rectangular one, but the car still carried on with the original dash.

Despite its dated design, the Century and its sibling the Oldsmobile Cutlass Ciera still sold well during the 1990s and proved both reliable and profitable to GM since their tooling costs had been monetized.
In general, the A-body platform was very sturdy, and quality was improved every year while more standard features were added.
For the 1991 model year, the Century received another slight facelift featuring a bigger radiator grille and different headlamps. Also, the interior received new door panels moving the window switches and door lock switches into a more convenient configuration found on more modern cars, where the switch location corresponds with the window location in the car body. This feature never appeared on its sibling the Oldsmobile Ciera, which retained the inline switch bank mounted flush with the door panel, the rear switch being the drivers door window. The Century windows switches were not backlit, but lit by a small bulb in the door panel trim above the switch bank. Other interior changes included new seat covers, and relocating the front outboard seat belts from the A pillar into the door, functioning as "automatic" seat belts so that the belts could be buckled and the door opened and closed while still buckled. The driver and front passenger could enter and exit the vehicle while the seat belt was still fastened.
For 1993, the 2.5 L I4 was replaced with a new 115 hp 2.2 I4. For 1994, the slow-selling coupe model was dropped (603 sold for 1993, or 0.5% of overall Century sales), and all models received a standard driver's-side airbag. Also in 1993, the 160 hp (119 kW) 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 (89 kW) with the introduction of MFI. Midway through the 1994 model year, a round speedometer replaced the wide rectangular one, but the car still carried on with the original dash.
Despite its dated design, the Century and its sibling the Oldsmobile Cutlass Ciera still sold well during the 1990s and proved both reliable and profitable to GM since their tooling costs had been monetized. In general, the A-body platform was very sturdy, and quality was improved every year while more standard features were added.
Buick Century