Once robocars got public attention, a certain faction promoted the view that we should be giving much more attention to the idea of the "connected car." The connected car was coming sooner, would have a big effect, and some said that it was silly to talk about robocars at all without first thinking of them as connected cars. Many even pushed for the vocabulary around robocars to always include connectivity, pushing names like "connected autonomous vehicle" as a primary term for the technology.
Robocars will be connected, but not nearly as much as people in the "connected car" world imagine. And the connection won't be essential. Some cars will work with only a connection when they are parked, or with intermittent connectivity during the day. But most of all, they won't connect out to the world. The robocar probably will connect only to servers at its HQ -- the company that made it or which runs the fleet it's in. It won't talk directly to infrastructure and other cars, it may not even talk two-way with the rider's phone.
Fortunately, the efforts to require vehicle-to-vehicle and vehicle-to-infrastructure connectivity in cars are rumoured to have suffered a setback in the USA.