Voltage light came on, I have a1997 chevy lumina we were driving and graduall everything went out on the car,?

Your alternator went out, probably. The battery is normally only used to start the car. Then the alternator (works like an electrical generator) supplies the cars electricity and keeps the battery charged. The light is to tell you the car's voltage is low, the battery isn't being charged. The battery will not run the car for very long. Charge the battery or install a charged battery and take the car to a repair shop or a automotive parts store. They can test it and tell you if its the alternator or the battery.