1995 GMC Safari Owner's Manual - Page 107

If the light stays on, orcomes on when you're driving, your vehicle needs service. If the regular brake system warning light isn't on, you still have brakes, but you don't have anti-lock brakes. If the regular brake system warning light is also on, you don't have anti-lock brakes and there's a problem with your regular brakes. See "Brake System Warning Light" earlier in this part. Malfunction Indicator Lamp (S€l?VlC€ ENGINE SOON) The amber Malfunction Indicator (SERVICE ENGINE SOON) Lamp is located on the passenger side of your standard cluster. If you have the digital cluster, it ison the driver's side. SERVICE ENGINE SOON 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. 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. NOTICE: If you keep driving your vehicle with this light after a while on, the emission controls won't work well, your fuel economy as won't beas good and your engine may not run as smoothly. This could lead to costly repairs not covered your warranty. by Indicator Lights Indicator lights go on when you use your turn signals, change from low beam headlamps to high beams, or when you use your hazard flashers. The next few pages will also tell you about the indicator lights on your vehicle and help you locate them. 2-55