My generator warning light went on, but did not come on again once the car was restarted. What should I do?

That light means your vehicle is not charging have charging system tested.

hard to call..take it if your worried to/for a quick battery/starter/alt. check..

The most likely culprit for this is the alternator has the voltage regulator brushes worn out. Often enough you need to replace the whole alternator like i did since my whole inner core rusted out and started rubbing the walls. Have the alternator checked if its stock parts im willing to bet its worn out.

like i said. have it checked. replace the alt...