The expansion will allow customers to drive hands-free along freeways and large sections of notable routes, such as Route 66, which stretches 2,400 miles between Chicago and Los Angeles; Route 1, stretching 2,370 miles between Key West, Florida, and the Maine-Canada border; California’s Pacific Coast Highway and the Trans-Canada Highway.

With the expansion, “all the little townships are going to be connected now,” GM mapping specialist David Craig told reporters last week. “This expands Super Cruise availability to many millions more customers.”

Super Cruise is available on the Cadillac Escalade, CT4, CT5, XT6 and Lyriq; GMC Hummer and Sierra pickup trucks; and Chevrolet Silverado and Bolt EUV. It will soon be available on the Chevy Tahoe and Suburban and the GMC Yukon, GM said.

Super Cruise will be available on 22 models by the end of next year, GM said.

The discontinued Bolt EUV and Cadillac XT6 and CT6 will be eligible for a limited mileage update release as they were built on a previous generation platform.

Super Cruise prices range from $2,200 to $2,500. The map update will be free for existing customers.

“We are pursuing what we believe is the most comprehensive path to autonomy in the industry with responsible deployment of automated driving technology like Super Cruise at the heart of what we do,” said Mario Maiorana, Engineering head of Super Cruise, in the press release. .