Where on the dash is the rear window defrost button located on a 96 Chev Astro Van?

On a 1996 Chevy Astro Van, the rear window defrost button is typically located on the center dash panel, near the climate control knobs. It may be labeled with a symbol resembling a rectangle with wavy lines above it. The exact placement can vary slightly depending on the specific trim level, but it is generally easy to find within the central controls of the dashboard.