1995 Chevrolet Astro Owner's Manual - Page 109
1995 Chevrolet Astro Manual
Page 109 highlights
If the light stays on, or comes 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 (SERVICE ENGINESOON) The amber Malfunction Indicator (SERVICE ENGINE SOON) Lamp is located on the passenger side of your standard cluster. If you have thedigital cluster, it is on the driver's side. 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 isworking. If it does not come on at all, have it fixed right away. If it stays on, or itcomes 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 on, after a while the emission controls won't work as well, your fuel economy won't be as good and your engine may not run as smoothly. This could lead to costly repairs not covered by your warranty. Indicator Lights Indicator lights go on when you use your turn signals, change fromlow 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