Instrument Panel Cont'd
Alternator/Generator warning light or gauge- Your vehicle’s electrical system is in trouble if this light comes on or the gauge shows “discharge” while the engine is running.
Discharge occurs when the alternator is not generating enough electricity to charge the battery.
Be aware that if this happens the engine must use electricity stored in the battery.
Turn off as many electrical devices as possible (i.e., the radio, heater/AC, etc.).
Caution: Have this checked without delay. If the battery is drained, the car can shut off without further warning.