Where is the top down button on a 1999 Chevrolet Cavalier convertible?

The 1999 Chevrolet Cavalier convertible doesn't have a single "top-down" button. The top operation is controlled by a switch, typically located on the center console, near the gear shifter. It's usually a rocker switch (or a similar type of switch), and you'll have to press and hold it to raise or lower the convertible top. There isn't a dedicated "top down" button separate from the mechanism for raising it.