1994 Buick Century Owner's Manual - Page 118

Engine Coolant Temperature Gage This gage shows the engine coolant temperature. If the gage pointer moves into the red area, your engine is too hot! Malfunction Indicator Lamp (Service Engine Soon Light) A computer monitors operation of your fuel, ignition and emission control systems. This light should come on when the ignition is on, but the engine is not running, as a check to show you it is working. 100 \ \ \ TEMPERATURE -E- T lm, 260 i SERVICE ENGINE SOON That reading means the same thing as the warning light. It means that your engine coolant has overheated. If you have been operating your vehicle under normal driving conditions, you should pull off the road, stop your vehicle and turn off the engine as soon as possible. The chapter "Problems on the Road," in this manual explains what to do. See "EngineOverheating" in the Index. If it does not come on at all, have it fixed right away. If it stays on, or it comes on while you are driving,the computer is indicating that you have a problem. You should take your vehicle in for service soon. 116