Pontiac Grand Prix Low Fuel Light

I Have A Grand Prix Gtp And Sometimes When The Low Fuel Light Comes On And It Makes That Ding Noise My Radio Shuts Off And Come Back On

Low Fuel Light Stays On

I Have A 2000 Grand Prix Gtp. It Around 81,000 Miles On It, 3.8 V6 Supercharged. Sometimes When I Slow Down To Turn Or Let Off The Gas...