Cadillac says it is expanding the availability of Super Cruise to by 70,000 miles (112,650 km) of compatible, divided highways in the U.S. and Canada. This expansion will bring the total miles of compatible highway for the driver assistance feature to more than 200,000 by the fourth quarter of 2019. To date, Super Cruise has been available on more than 130,000 miles (209,000 km) of limited-access freeways.
To enable the expanded functionality, an enhancement to the Super Cruise system will be available to 2018 and 2019 model year Cadillac CT6 owners through their Cadillac dealer. Following the completion of the system enhancement, the new, additional map miles will be sent to customer vehicles over the air throughout the summer and fall.