1995 Buick Century Owner's Manual - Page 113

I NOTICE: If you keep driving your vehicle with this light on, aftera while the emission controls won't work as well, your fuel economy won't be good as and your engine may not run smoothly. This as could lead to costly repairs not covered by your warranty. Engine Oil Pressure Light If you have a problem with your oil, this red oil pressure warning light may stay on after you start your engine, or come on when you are driving.Stop your vehicle and shut off the engine if this light stays on. Liftgate Ajar Warning Light (Wagon) The amber TAILGATE AJAR reminder light on your instrument panel will come on if your liftgate is not completely closed. This indicates that oil is going through your engine not quickly enough to keep it lubricated. The engine could be on oil, or could low have some other oil problem. Have your vehicle serviced immediately. The oil light could also comeon in three other situations: TAILGATE AJAR When the ignition is on but the engine is not running, the light will come on as a test to show you it is working, but the light will go out when you turn the ignition to "Start."If it doesn't come on with the ignition on, you may have a problem with the fuse or bulb. Have it fixed right away.