Uber first released self-driving vehicles to the street in September 2016 in Pittsburgh. The vehicles are designed to be self-driving, but have not all have been released to pick up passengers without actual drivers just yet. Test driving has continued in Pittsburgh, Arizona, and San Francisco, where the vehicles are currently being used only for mapping purposes. One of these vehicles was caught on camera running a red light in California during the first week of test driving. Last week, a self-driving vehicle flipped over in Arizona. Officials say that another vehicle caused the collision and was cited, but Uber still faces scrutiny and questions about the real safety of these self-driving vehicles. Uber withdrew the self-driving vehicles in the three cities after this accident, but are set to resume immediately.