After ending their own driverless plans, the ride-sharing companies are embracing autonomous-vehicle operators and offering new app features.

Customers in Atlanta and Austin, Texas, will be able to hail one of these driverless rideshare cars via the Uber app.

The ride-sharing giants are having a good Monday, following Uber's announcement of a $1.5 billion accelerated share-repurchase program. In the young year, Uber is up about 10%, while Lyft is up 12%. D

Uber and Lyft are set to launch robotaxis in select US cities, focusing on safety and infrastructure challenges.