1999 Oldsmobile Aurora Owner's Manual - Page 124

yellowblue Battery Warning Light This light will come on briefly when you start the vehicle, as a check to show you it is working, then it should go out. Brake System Warning Light Your vehicle's hydraulic brake system is divided into two parts. If one part isn't working, the other part can still work and stop you. For good braking, though, you need both parts working well. This light should come on when you turn the ignition key to START. If it stays on, or comes on while you are driving, you may have a problem with the electrical charging system. A warning chime and the message CHECK CHARGE SYSTEM may also come on. Have it checked right away. Driving while this light is on could drain your battery. If you must drive a short distance with the light on, be certain to turn off all your accessories, such as the radio and climate control. If it doesn't come on then, have it fixed so it will be ready to warn you if there's a problem. If this warning light stays on after you start the engine, there could be a brake problem. Have your brake system inspected right away. 2-66