GM Approves More Roadways for Super Cruise System

General Motors Co. is adding 70,000 miles of limited-access highways in the U.S. and Canada it deems suitable for use by its Super Cruise hands-free driving system.

GM already allows Super Cruise to be activated on about 130,000 miles of roads. The new routes being added by the end of this year will include some with limited intersections and traffic signals.

GM currently offers the Super Cruise system on 2018 and 2019 model Cadillac CT6 large sedans. The feature also will be offered on the Cadillac CT5 in 2020.

The technology employs precision lidar map data, GPS, cameras, radar and a driver attention monitor. GM says its customers have covered 2.5 million miles in Super Cruise mode since the technology debuted last year. 

To access the new roadways being offered, owners must bring their vehicles to a dealership to update the system. They then will be able to wirelessly download updated maps that include the added highway routes.