One look and it's easy to tell what this button does, but its obviousness doesn't make it any less odd. Actually, it's not really a button; it's more of a touch-sensitive panel. In fact, it's pretty tough to find any traditional buttons in the 2014 Cadillac CTS.
For years, automakers have been moving away from real mechanical buttons and knobs toward touch-screens and flat-panel touch-sensitive controls. We're used to seeing climate knobs, audio dials and vehicle info menus increasingly controlled via touch, but Cadillac has taken the phenomenon to new levels with the 2014 CTS' glove box. And the button isn't even on the glove box.