The fuel gauge in a car like this doesn't need to be reset. It's connected to a sensor in the fuel tank that measures the amount of fuel remaining.
Here's what you might be thinking of:
* Trip Odometer Reset: There's a button to reset the trip odometer, often located on the instrument cluster.
* Fuel Economy Reset: Some cars have a "fuel economy reset" button, which allows you to manually reset the average fuel economy calculation. The Cavalier likely doesn't have this.
If you're having an issue with your fuel gauge:
* Check the fuse for the fuel gauge in the fuse box.
* Make sure the fuel sending unit in the tank is working properly.
* A mechanic can diagnose any electrical issues with the fuel gauge system.