ES sedan's 'hidden switches' reflect consumer ambivalence about touchscreen trend

The ES sedan's control buttons are normally invisible, but light up when a hand moves near them. (Photo by Sota Tanaka)

TOKYO -- Toyota Motor's Lexus luxury brand has taken a step away from touchscreens with the seamless light-up buttons in its new sedan, as questions of safety and user-friendliness spur a fresh look at physical controls.