What is the reset button for next to fuse box 99 Buick regal ls?

The reset button next to the fuse box in a 1999 Buick Regal LS is typically the reset for the fuel pump or the inertia switch, which is designed to cut off fuel supply in case of an accident. This button can be pressed to restore fuel flow after an impact or if the vehicle fails to start. If the button has been tripped, it may need to be reset to allow the engine to start again. Always consult the owner's manual for specific details related to your vehicle.