GM CEO Mary Barra sees the current strong car sales environment sticking around for a while, even though some analysts are calling for a drop in sales.
General Motors is testing self-driving vehicles on the streets of Scottsdale, Arizona.
Through its autonomous technology company Cruise Automation, GM says it started about two weeks ago with testing of the Chevrolet Bolt in real-world conditions.
GM officials say Scottsdale is the second city for such tests, and officials say other locations are expected.
All test vehicles have had human backup drivers.