1998 Oldsmobile Silhouette Owner's Manual - Page 188

Tachometer Warning Lights, Gages and Indicators This part describes the warning lights and gages that may be on your vehicle. The pictures will help you locate them. '-3 \ -0 7 7 I *2 I; -1 R Warning lights and gages can signal that something is wrong before it becomes serious enough to causean expensive repair or replacement. Paying attention to your warning lights and gages could also save you or others from injury. The tachometer displays the engine speed in revolutions per minute (rpm). Warning lights come on when there may be or is a problem with one of your vehicle's functions. As you will see in the details on the next few pages, some warning lights come on briefly when you start the engine just to you know they're working. If you are let familiar with this section, you should not be alarmed when this happens. Gages can indicate when there may be or is a problem with one of your vehicle's functions. Often gages and warning lights work together to let you know when there's a problem with your vehicle. I NOTICE: 2-86 Do not operate the engine with the tachometer in the red area, or engine damage may occur.