Hey, Wake Up! Eye-Tracking Tech Nags Drivers to Stay Alert

Future buyers of General Motors Co. GM -3.88 % 's semiautonomous driving system will have to be comfortable with Big Brother sitting in the passenger seat. The nation's largest auto maker aims to release its Super Cruise on a Cadillac next year, and will feature eye tracking in the cabin, a first for a U.S. car maker. GM will duel with Volvo Car Corp.'s Pilot Assist and Tesla Motors Inc. TSLA -1.46 % 's Autopilot, both driver-assistance systems that can control a moving vehicle. While Tesla's Autopilot requires periodic handling by the driver, GM's system is expected to go a step further in monitoring the alertness of human drivers. Super Cruise's 2017 launch will come amid heightened scrutiny of systems that use cameras, sensors or radar to let the car do much of the driving at higher speeds.